function add_clean_index($table, $index)
{
    global $wpdb;
    drop_index($table, $index);
    $wpdb->query("ALTER TABLE `{$table}` ADD INDEX ( `{$index}` )");
    return true;
}
Esempio n. 2
0
function xmldb_taoresource_upgrade($oldversion = 0)
{
    global $CFG, $THEME, $db;
    $result = true;
    /// And upgrade begins here. For each one, you'll need one
    /// block of code similar to the next one. Please, delete
    /// this comment lines once this file start handling proper
    /// upgrade code.
    /// if ($result && $oldversion < YYYYMMDD00) { //New version in version.php
    ///     $result = result of "/lib/ddllib.php" function calls
    /// }
    //===== 1.9.0 upgrade line ======//
    // change the remoteid key to be non-unique
    if ($result && $oldversion < 2007101510) {
        $table = new XMLDBTable('taoresource_entry');
        $index = new XMLDBIndex('remoteid');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('remoteid'));
        if (index_exists($table, $index)) {
            $result = $result && drop_index($table, $index);
        }
        $result = $result && add_index($table, $index);
    }
    // change the remoteid key to be non-unique
    if ($result && $oldversion < 2007101511) {
        $table = new XMLDBTable('taoresource_metadata');
        $field = new XMLDBField('entry_id');
        // change the field type from ext to int
        if (field_exists($table, $field)) {
            $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'id');
            $result = $result && change_field_type($table, $field);
        }
    }
    return $result;
}
Esempio n. 3
0
function xmldb_block_student_gradeviewer_upgrade($oldversion = 0)
{
    global $CFG, $THEME, $db;
    $result = true;
    if ($result && $oldversion < 2010070912) {
        /// Define field opt to be dropped from block_teacher_referral_opt
        $table = new XMLDBTable('block_teacher_referral_opt');
        // First let's drop the index
        $index = new XMLDBIndex('bloc_tea_usesec_uix');
        $index->setAttributes(XMLDB_INDEX_UNIQUE, array('usersid', 'sectionsid'));
        $failing_field = new XMLDBField('failing');
        $lagging_field = new XMLDBField('lagging');
        $usersid_field = new XMLDBField('usersid');
        /// Launch drop field opt
        $result = $result && drop_index($table, $index) && drop_field($table, $usersid_field) && drop_field($table, $lagging_field) && drop_field($table, $failing_field);
        // Add the following fields
        $fields = array('sectionsid', 'primary_instructor', 'non_primary_instructor', 'student', 'non_primary_control');
        foreach (range(1, count($fields) - 1) as $index) {
            $field = new XMLDBField($fields[$index]);
            $field->setAttributes(XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', $fields[$index - 1]);
            $result = $result && add_field($table, $field);
        }
        $index = new XMLDBIndex('bloc_tea_usesec_uix');
        $index->setAttributes(XMLDB_INDEX_UNIQUE, array('sectionsid'));
        $result = $result && add_index($table, $index);
    }
    return $result;
}
Esempio n. 4
0
/**
 * ELIS(TM): Enterprise Learning Intelligence Suite
 * Copyright (C) 2008-2012 Remote Learner.net Inc http://www.remote-learner.net
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 * @package    elis
 * @subpackage core
 * @author     Remote-Learner.net Inc
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL
 * @copyright  (C) 2008-2012 Remote Learner.net Inc http://www.remote-learner.net
 *
 */
function xmldb_elis_core_upgrade($oldversion = 0)
{
    global $CFG, $THEME, $db;
    $result = true;
    if ($result && $oldversion < 2011030402) {
        /***********************************************************************
         * Replace plugintype and pluginname with plugin field
         **********************************************************************/
        /// Define field plugin to be added to elis_scheduled_tasks
        $table = new XMLDBTable('elis_scheduled_tasks');
        $field = new XMLDBField('plugin');
        $field->setAttributes(XMLDB_TYPE_CHAR, '166', null, XMLDB_NOTNULL, null, null, null, null, 'id');
        /// Launch add field plugin
        $result = $result && add_field($table, $field);
        /// Define index plugin_idx (not unique) to be dropped form elis_scheduled_tasks
        $index = new XMLDBIndex('plugin_idx');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('plugintype', 'pluginname', 'taskname'));
        /// Launch drop index plugin_idx
        $result = $result && drop_index($table, $index);
        /// Define index plugin_idx (not unique) to be added to elis_scheduled_tasks
        $index = new XMLDBIndex('plugin_idx');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('plugin', 'taskname'));
        /// Launch add index plugin_idx
        $result = $result && add_index($table, $index);
        /// Define field plugin to be dropped from elis_scheduled_tasks
        $field = new XMLDBField('plugintype');
        /// Launch drop field plugin
        $result = $result && drop_field($table, $field);
        /// Define field plugin to be dropped from elis_scheduled_tasks
        $field = new XMLDBField('pluginname');
        /// Launch drop field plugin
        $result = $result && drop_field($table, $field);
        /***********************************************************************
         * Change callfunction from text to char
         **********************************************************************/
        /// Changing type of field callfunction on table elis_scheduled_tasks to char
        $field = new XMLDBField('callfunction');
        $field->setAttributes(XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, null, null, 'callfile');
        /// Launch change of type for field callfunction
        $result = $result && change_field_type($table, $field);
    }
    if ($result && $oldversion < 2011030403) {
        /// Define field startdate to be added to elis_scheduled_tasks
        $table = new XMLDBTable('elis_scheduled_tasks');
        $field = new XMLDBField('startdate');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null, 'runsremaining');
        /// Launch add field startdate
        $result = $result && add_field($table, $field);
    }
    return $result;
}
Esempio n. 5
0
function question_upgrade_context_etc()
{
    global $CFG;
    $result = true;
    $result = $result && question_delete_unused_random();
    $question_categories = get_records('question_categories');
    if ($question_categories) {
        //prepare content for new db structure
        $tofix = question_cwqpfs_to_update($question_categories);
        foreach ($tofix as $catid => $publish) {
            $question_categories[$catid]->publish = $publish;
        }
        foreach ($question_categories as $id => $question_category) {
            $course = $question_categories[$id]->course;
            unset($question_categories[$id]->course);
            if ($question_categories[$id]->publish) {
                $context = get_context_instance(CONTEXT_SYSTEM);
                //new name with old course name in brackets
                $coursename = get_field('course', 'shortname', 'id', $course);
                $question_categories[$id]->name .= " ({$coursename})";
            } else {
                $context = get_context_instance(CONTEXT_COURSE, $course);
            }
            $question_categories[$id]->contextid = $context->id;
            unset($question_categories[$id]->publish);
        }
        $question_categories = question_category_checking($question_categories);
    }
    /// Define index course (not unique) to be dropped form question_categories
    $table = new XMLDBTable('question_categories');
    $index = new XMLDBIndex('course');
    $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('course'));
    /// Launch drop index course
    $result = $result && drop_index($table, $index);
    /// Define field course to be dropped from question_categories
    $field = new XMLDBField('course');
    /// Launch drop field course
    $result = $result && drop_field($table, $field);
    /// Define field context to be added to question_categories
    $field = new XMLDBField('contextid');
    $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'name');
    $field->comment = 'context that this category is shared in';
    /// Launch add field context
    $result = $result && add_field($table, $field);
    /// Define index context (not unique) to be added to question_categories
    $index = new XMLDBIndex('contextid');
    $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('contextid'));
    $index->comment = 'links to context table';
    /// Launch add index context
    $result = $result && add_index($table, $index);
    $field = new XMLDBField('publish');
    /// Launch drop field publish
    $result = $result && drop_field($table, $field);
    /// update table contents with previously calculated new contents.
    if ($question_categories) {
        foreach ($question_categories as $question_category) {
            $question_category->name = addslashes($question_category->name);
            $question_category->info = addslashes($question_category->info);
            if (!($result = update_record('question_categories', $question_category))) {
                notify('Couldn\'t update question_categories "' . $question_category->name . '"!');
            }
        }
    }
    /// Define field timecreated to be added to question
    $table = new XMLDBTable('question');
    $field = new XMLDBField('timecreated');
    $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'hidden');
    /// Launch add field timecreated
    $result = $result && add_field($table, $field);
    /// Define field timemodified to be added to question
    $table = new XMLDBTable('question');
    $field = new XMLDBField('timemodified');
    $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'timecreated');
    /// Launch add field timemodified
    $result = $result && add_field($table, $field);
    /// Define field createdby to be added to question
    $table = new XMLDBTable('question');
    $field = new XMLDBField('createdby');
    $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null, 'timemodified');
    /// Launch add field createdby
    $result = $result && add_field($table, $field);
    /// Define field modifiedby to be added to question
    $table = new XMLDBTable('question');
    $field = new XMLDBField('modifiedby');
    $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null, 'createdby');
    /// Launch add field modifiedby
    $result = $result && add_field($table, $field);
    /// Define key createdby (foreign) to be added to question
    $table = new XMLDBTable('question');
    $key = new XMLDBKey('createdby');
    $key->setAttributes(XMLDB_KEY_FOREIGN, array('createdby'), 'user', array('id'));
    /// Launch add key createdby
    $result = $result && add_key($table, $key);
    /// Define key modifiedby (foreign) to be added to question
    $table = new XMLDBTable('question');
    $key = new XMLDBKey('modifiedby');
    $key->setAttributes(XMLDB_KEY_FOREIGN, array('modifiedby'), 'user', array('id'));
    /// Launch add key modifiedby
    $result = $result && add_key($table, $key);
    return $result;
}
Esempio n. 6
0
/**
 * This function will load one entire XMLDB file, generating all the needed
 * SQL statements, specific for each RDBMS ($CFG->dbtype) and, finally, it
 * will execute all those statements against the DB, to drop all tables.
 *
 * @param $file full path to the XML file to be used
 * @return boolean (true on success, false on error)
 */
function uninstall_from_xmldb_file($file)
{
    global $CFG, $db;
    $status = true;
    $xmldb_file = new XMLDBFile($file);
    if (!$xmldb_file->fileExists()) {
        throw new InstallationException($xmldb_file->path . " doesn't exist.");
    }
    $loaded = $xmldb_file->loadXMLStructure();
    if (!$loaded || !$xmldb_file->isLoaded()) {
        throw new InstallationException("Could not load " . $xmldb_file->path);
    }
    $structure = $xmldb_file->getStructure();
    if ($tables = array_reverse($structure->getTables())) {
        foreach ($tables as $table) {
            // for MySQL, skip dropping indices and keys
            // as they will be dropped when the table is dropped
            if (!is_mysql() && ($indexes = $table->getIndexes())) {
                foreach ($indexes as $index) {
                    if ($index->getName() == 'usernameuk' && is_postgres()) {
                        // this is a giant hack, but adodb cannot handle resolving
                        // the column for indexes that include lower() or something similar
                        // and i can't find a nice way to do it.
                        execute_sql('DROP INDEX {usr_use_uix}');
                        continue;
                    }
                    drop_index($table, $index);
                }
            }
            if (!is_mysql() && ($keys = $table->getKeys())) {
                $sortkeys = array();
                foreach ($keys as $key) {
                    $sortkeys[] = $key->type;
                }
                array_multisort($sortkeys, SORT_DESC, $keys);
                foreach ($keys as $key) {
                    if (!is_postgres() && $key->type != XMLDB_KEY_FOREIGN && $key->type != XMLDB_KEY_FOREIGN_UNIQUE) {
                        // Skip keys for MySQL because these will be
                        // dropped when the table is dropped
                        continue;
                    }
                    drop_key($table, $key);
                }
            }
            drop_table($table);
        }
    }
    return true;
}
Esempio n. 7
0
/**
 * ELIS(TM): Enterprise Learning Intelligence Suite
 * Copyright (C) 2008-2012 Remote Learner.net Inc http://www.remote-learner.net
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 * @package    elis
 * @subpackage component
 * @author     Remote-Learner.net Inc
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL
 * @copyright  (C) 2008-2012 Remote Learner.net Inc http://www.remote-learner.net
 *
 */
function xmldb_crlm_user_activity_upgrade($oldversion = 0)
{
    global $CFG, $THEME, $db;
    $result = true;
    if ($result && $oldversion < 2010071502) {
        /// Define table etl_user_module_activity to be created
        $table = new XMLDBTable('etl_user_module_activity');
        /// Adding fields to table etl_user_module_activity
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('userid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('courseid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('cmid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('hour', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('duration', XMLDB_TYPE_INTEGER, '4', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        /// Adding keys to table etl_user_module_activity
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        /// Adding indexes to table etl_user_module_activity
        $table->addIndexInfo('user_cmid_hour_idx', XMLDB_INDEX_UNIQUE, array('userid', 'cmid', 'hour'));
        $table->addIndexInfo('cm_idx', XMLDB_INDEX_NOTUNIQUE, array('cmid'));
        $table->addIndexInfo('hour_idx', XMLDB_INDEX_NOTUNIQUE, array('hour'));
        /// Launch create table for etl_user_module_activity
        if (!table_exists($table)) {
            $result = $result && create_table($table);
        }
    }
    if ($result && $oldversion < 2010071503) {
        // clear all records -- they may be incorrect, and we'll recalculate
        // them all
        delete_records_select('etl_user_activity', 'TRUE');
        delete_records('crlm_config', 'name', 'user_activity_last_run');
        /// Define index user_idx (not unique) to be dropped form etl_user_activity
        $table = new XMLDBTable('etl_user_activity');
        $index = new XMLDBIndex('user_idx');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('userid'));
        /// Launch drop index user_idx
        $result = $result && drop_index($table, $index);
        /// Define index user_idx (not unique) to be added to etl_user_activity
        $table = new XMLDBTable('etl_user_activity');
        $index = new XMLDBIndex('user_idx');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('userid', 'courseid', 'hour'));
        /// Launch add index user_idx
        $result = $result && add_index($table, $index);
    }
    if ($result && $oldversion < 2010071505) {
        $sql = "SELECT userid, courseid, hour, COUNT('x') count\n                  FROM {$CFG->prefix}etl_user_activity\n                 GROUP BY userid, courseid, hour\n                HAVING COUNT('x') > 1";
        if (record_exists_sql($sql)) {
            $table = new XMLDBTable('etl_user_activity_temp');
            // fields
            $field = $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE);
            $field = $table->addFieldInfo('userid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null, 'id');
            $field = $table->addFieldInfo('courseid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null, 'userid');
            $field = $table->addFieldInfo('hour', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null, 'courseid');
            $field = $table->addFieldInfo('duration', XMLDB_TYPE_INTEGER, '4', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null, 'hour');
            // Keys & indexes
            $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
            $table->addIndexInfo('user_idx', XMLDB_INDEX_UNIQUE, array('userid', 'courseid', 'hour'));
            $table->addIndexInfo('course_idx', XMLDB_INDEX_NOTUNIQUE, array('courseid'));
            $table->addIndexInfo('hour_idx', XMLDB_INDEX_NOTUNIQUE, array('hour'));
            $result = $result && create_table($table);
            if ($result) {
                $sql = "INSERT INTO {$CFG->prefix}etl_user_activity_temp (userid, courseid, hour, duration)\n                        SELECT userid, courseid, hour, duration\n                          FROM {$CFG->prefix}etl_user_activity\n                      GROUP BY userid, courseid, hour\n                      ORDER BY id ASC";
                $result = $result && execute_sql($sql);
                if ($result) {
                    $oldtable = new XMLDBTable('etl_user_activity');
                    $result = $result && drop_table($oldtable);
                    if ($result) {
                        $result = $result && rename_table($table, 'etl_user_activity');
                    }
                }
            }
        }
        if ($result) {
            $sql = "UPDATE {$CFG->prefix}etl_user_activity SET duration = 3600 WHERE duration > 3600";
            execute_sql($sql);
        }
    }
    return $result;
}
Esempio n. 8
0
 function step3()
 {
     global $wpdb;
     do_action('import_start');
     set_time_limit(0);
     update_option('ljapi_step', 3);
     echo '<div id="ljapi-status">';
     echo '<h3>' . __('Threading Comments&#8230;') . '</h3>';
     echo '<p>' . __('We are now re-building the threading of your comments (this can also take a while if you have lots of comments)...') . '</p>';
     ob_flush();
     flush();
     // Only bother adding indexes if they have over 5000 comments (arbitrary number)
     $imported_comments = $wpdb->get_var("SELECT COUNT(*) FROM {$wpdb->comments} WHERE comment_type = 'livejournal'");
     $added_indices = false;
     if (5000 < $imported_comments) {
         include_once ABSPATH . 'wp-admin/includes/upgrade.php';
         $added_indices = true;
         add_clean_index($wpdb->comments, 'comment_type');
         add_clean_index($wpdb->comments, 'comment_karma');
         add_clean_index($wpdb->comments, 'comment_agent');
     }
     // Get LJ comments, which haven't been threaded yet, 5000 at a time and thread them
     while ($comments = $wpdb->get_results("SELECT comment_ID, comment_agent FROM {$wpdb->comments} WHERE comment_type = 'livejournal' AND comment_agent != '0' LIMIT 5000", OBJECT)) {
         foreach ($comments as $comment) {
             $wpdb->update($wpdb->comments, array('comment_parent' => $this->get_wp_comment_ID($comment->comment_agent), 'comment_type' => 'livejournal-done'), array('comment_ID' => $comment->comment_ID));
         }
         wp_cache_flush();
         $wpdb->flush();
     }
     // Revert the comments table back to normal and optimize it to reclaim space
     if ($added_indices) {
         drop_index($wpdb->comments, 'comment_type');
         drop_index($wpdb->comments, 'comment_karma');
         drop_index($wpdb->comments, 'comment_agent');
         $wpdb->query("OPTIMIZE TABLE {$wpdb->comments}");
     }
     // Clean up database and we're out
     $this->cleanup();
     do_action('import_done', 'livejournal');
     if ($imported_comments > 1) {
         echo '<p>' . sprintf(__("Successfully re-threaded %s comments."), number_format($imported_comments)) . '</p>';
     }
     echo '<h3>';
     printf(__('All done. <a href="%s">Have fun!</a>'), get_option('home'));
     echo '</h3>';
     echo '</div>';
 }
function xmldb_studynotes_upgrade($oldversion = 0)
{
    global $CFG, $THEME, $db;
    $result = true;
    if ($result && $oldversion < 2009032400) {
        error("Version too old to be upgraded. Please delete the module and re-install it.");
    }
    if ($result && $oldversion < 2009041603) {
        /// Define table studynotes_uploads to be created
        $table = new XMLDBTable('studynotes_uploads');
        /// Adding fields to table studynotes_uploads
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('type', XMLDB_TYPE_INTEGER, '4', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('user_id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('topic_id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('filename', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('created', XMLDB_TYPE_DATETIME, null, null, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('modified', XMLDB_TYPE_DATETIME, null, null, XMLDB_NOTNULL, null, null, null, '0');
        /// Adding keys to table studynotes_uploads
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        /// Launch create table for studynotes_uploads
        $result = $result && create_table($table);
    }
    /// Rename field
    if ($result && $oldversion < 2009042400) {
        $table = new XMLDBTable('studynotes_cards');
        $field = new XMLDBField('user');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '11', XMLDB_UNSIGNED, null, null, null, null, '0', null);
        /// Launch rename field
        $result = $result && rename_field($table, $field, 'user_id');
    }
    /// Rename field
    if ($result && $oldversion < 2009042400) {
        $table = new XMLDBTable('studynotes_cards');
        $field = new XMLDBField('index');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '11', XMLDB_UNSIGNED, null, null, null, null, '0', null);
        if ($CFG->dbfamily == "mysql" || $CFG->dbfamily == "mysqli") {
            if (field_exists($table, $field)) {
                $query = "ALTER TABLE {$CFG->prefix}studynotes_cards CHANGE `index` index_num BIGINT( 11 ) UNSIGNED NOT NULL";
                $db->Execute($query);
            }
        } else {
            /// Launch rename field
            $result = $result && rename_field($table, $field, 'index_num');
        }
    }
    /// Rename field
    if ($result && $oldversion < 2009042400) {
        $table = new XMLDBTable('studynotes_cards');
        $field = new XMLDBField('level');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '11', XMLDB_UNSIGNED, null, null, null, null, '0', null);
        /// Launch rename field
        $result = $result && rename_field($table, $field, 'level_num');
    }
    /// Rename field
    if ($result && $oldversion < 2009042400) {
        $table = new XMLDBTable('studynotes_flashcards');
        $field = new XMLDBField('user');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '11', XMLDB_UNSIGNED, null, null, null, null, '0', null);
        /// Launch rename field
        $result = $result && rename_field($table, $field, 'user_id');
    }
    /// Rename field
    if ($result && $oldversion < 2009042400) {
        $table = new XMLDBTable('studynotes_flashcards');
        $field = new XMLDBField('number');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '11', XMLDB_UNSIGNED, null, null, null, null, '0', null);
        /// Launch rename field
        $result = $result && rename_field($table, $field, 'num');
    }
    /// Rename field
    if ($result && $oldversion < 2009042400) {
        $table = new XMLDBTable('studynotes_flashcards');
        $field = new XMLDBField('level');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '11', XMLDB_UNSIGNED, null, null, null, null, '0', null);
        /// Launch rename field
        $result = $result && rename_field($table, $field, 'level_num');
    }
    /// Rename field
    if ($result && $oldversion < 2009042400) {
        $table = new XMLDBTable('studynotes_groups');
        $field = new XMLDBField('access');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '11', XMLDB_UNSIGNED, null, null, null, null, '0', null);
        /// Launch rename field
        $result = $result && rename_field($table, $field, 'access_num');
    }
    /// Rename field
    if ($result && $oldversion < 2009042400) {
        $table = new XMLDBTable('studynotes_markers');
        $field = new XMLDBField('user');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '11', XMLDB_UNSIGNED, null, null, null, null, '0', null);
        /// Launch rename field
        $result = $result && rename_field($table, $field, 'user_id');
    }
    /// Rename field
    if ($result && $oldversion < 2009042400) {
        $table = new XMLDBTable('studynotes_markers');
        $field = new XMLDBField('range');
        $field->setAttributes(XMLDB_TYPE_TEXT, 'small', null, null, null, null, null, null, null);
        if ($CFG->dbfamily == "mysql" || $CFG->dbfamily == "mysqli") {
            if (field_exists($table, $field)) {
                $query = "ALTER TABLE {$CFG->prefix}studynotes_markers CHANGE `range` range_store TEXT CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL";
                $db->Execute($query);
            }
        } else {
            /// Launch rename field
            $result = $result && rename_field($table, $field, 'range_store');
        }
    }
    /// Rename field
    if ($result && $oldversion < 2009042400) {
        $table = new XMLDBTable('studynotes_memberships');
        $field = new XMLDBField('user');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '11', XMLDB_UNSIGNED, null, null, null, null, '0', null);
        /// Launch rename field
        $result = $result && rename_field($table, $field, 'user_id');
    }
    /// Rename field
    if ($result && $oldversion < 2009042400) {
        $table = new XMLDBTable('studynotes_memberships');
        $field = new XMLDBField('group');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '11', XMLDB_UNSIGNED, null, null, null, null, '0', null);
        if ($CFG->dbfamily == "mysql" || $CFG->dbfamily == "mysqli") {
            if (field_exists($table, $field)) {
                $query = "ALTER TABLE {$CFG->prefix}studynotes_memberships CHANGE `group` group_id BIGINT( 11 ) UNSIGNED NOT NULL";
                $db->Execute($query);
            }
        } else {
            /// Launch rename field
            $result = $result && rename_field($table, $field, 'group_id');
        }
    }
    /// Rename field
    if ($result && $oldversion < 2009042400) {
        $table = new XMLDBTable('studynotes_memberships');
        $field = new XMLDBField('level');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '11', XMLDB_UNSIGNED, null, null, null, null, '0', null);
        /// Launch rename field
        $result = $result && rename_field($table, $field, 'level_num');
    }
    /// Rename field
    if ($result && $oldversion < 2009042400) {
        $table = new XMLDBTable('studynotes_rights');
        $field = new XMLDBField('group');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '11', XMLDB_UNSIGNED, null, null, null, null, '0', null);
        if ($CFG->dbfamily == "mysql" || $CFG->dbfamily == "mysqli") {
            if (field_exists($table, $field)) {
                $query = "ALTER TABLE {$CFG->prefix}studynotes_rights CHANGE `group` group_id BIGINT( 11 ) UNSIGNED NOT NULL";
                $db->Execute($query);
            }
        } else {
            /// Launch rename field
            $result = $result && rename_field($table, $field, 'group_id');
        }
    }
    /// Rename field
    if ($result && $oldversion < 2009042400) {
        $table = new XMLDBTable('studynotes_topics');
        $field = new XMLDBField('user');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '11', XMLDB_UNSIGNED, null, null, null, null, '0', null);
        /// Launch rename field
        $result = $result && rename_field($table, $field, 'user_id');
    }
    // Rename tables longer than 24 chars
    if ($result && $oldversion < 2009043001) {
        /// Define table studynotes_feed_msg_stat to be renamed
        $table = new XMLDBTable('studynotes_feed_messages_status');
        /// Launch rename table for studynotes_feed_msg_stat
        $result = $result && rename_table($table, 'studynotes_feed_msg_stat');
    }
    // Rename tables longer than 24 chars
    if ($result && $oldversion < 2009043001) {
        /// Define table studynotes_feed_subscrib to be renamed
        $table = new XMLDBTable('studynotes_feed_subscriptions');
        /// Launch rename table for studynotes_feed_subscrib
        $result = $result && rename_table($table, 'studynotes_feed_subscrib');
    }
    // Rename tables longer than 24 chars
    if ($result && $oldversion < 2009043001) {
        /// Define table studynotes_rel_questions to be renamed
        $table = new XMLDBTable('studynotes_relation_questions');
        /// Launch rename table for studynotes_rel_questions
        $result = $result && rename_table($table, 'studynotes_rel_questions');
    }
    // Rename tables longer than 24 chars
    if ($result && $oldversion < 2009043001) {
        /// Define table studynotes_rel_questions to be renamed
        $table = new XMLDBTable('studynotes_relation_translations');
        /// Launch rename table for studynotes_rel_questions
        $result = $result && rename_table($table, 'studynotes_rel_translations');
    }
    if ($result && $oldversion < 2009050301) {
        $fields = array(array('studynotes_cards', 'created'), array('studynotes_cards', 'modified'), array('studynotes_cards', 'locked_time'), array('studynotes_feed_messages', 'created'), array('studynotes_feed_messages', 'modified'), array('studynotes_feed_msg_stat', 'created'), array('studynotes_feed_msg_stat', 'modified'), array('studynotes_feeds', 'created'), array('studynotes_feeds', 'modified'), array('studynotes_groups', 'created'), array('studynotes_groups', 'modified'), array('studynotes_markers', 'created'), array('studynotes_markers', 'modified'), array('studynotes_memberships', 'created'), array('studynotes_memberships', 'modified'), array('studynotes_relations', 'created'), array('studynotes_relations', 'modified'), array('studynotes_relation_answers', 'created'), array('studynotes_relation_answers', 'modified'), array('studynotes_relation_links', 'created'), array('studynotes_relation_links', 'modified'), array('studynotes_rel_questions', 'created'), array('studynotes_rel_questions', 'modified'), array('studynotes_topics', 'created'), array('studynotes_topics', 'modified'), array('studynotes_uploads', 'created'), array('studynotes_uploads', 'modified'), array('studynotes_users', 'created'), array('studynotes_users', 'last_login'));
        foreach ($fields as $info) {
            $table = new XMLDBTable($info[0]);
            $tmpField = new XMLDBField($info[1] . "_cpy");
            $tmpField->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', $info[1]);
            //add new integer field
            $result = $result && add_field($table, $tmpField);
            //get value
            if ($records = get_records($info[0], '', '', '', 'id,' . $info[1])) {
                //convert value
                foreach ($records as $record) {
                    $record->{$info[1] . "_cpy"} = strtotime($record->{$info[1]});
                    unset($record->{$info[1]});
                    print_r($record);
                    $result = $result && update_record($info[0], $record);
                }
            }
            //drop old field
            $field = new XMLDBField($info[1]);
            $result = $result && drop_field($table, $field);
            //rename copy
            $tmpField->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', null);
            $result = $result && change_field_default($table, $tmpField);
            $result = $result && rename_field($table, $tmpField, $info[1]);
        }
    }
    if ($result && $oldversion < 2009050301) {
        /// Define table studynotes_rel_translations to be dropped
        $table = new XMLDBTable('studynotes_rel_translations');
        /// Launch drop table for studynotes_rel_translations
        $result = $result && drop_table($table);
    }
    if ($result && $oldversion < 2009070300) {
        /// Define index link (not unique) to be dropped form studynotes_relation_links
        $table = new XMLDBTable('studynotes_relation_links');
        $index = new XMLDBIndex('link');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('link'));
        /// Launch drop index link
        $result = $result && drop_index($table, $index);
    }
    if ($result && $oldversion < 2009070300) {
        /// Changing type of field link on table studynotes_relation_links to text
        $table = new XMLDBTable('studynotes_relation_links');
        $field = new XMLDBField('link');
        $field->setAttributes(XMLDB_TYPE_TEXT, 'medium', null, XMLDB_NOTNULL, null, null, null, null, 'id');
        /// Launch change of type for field link
        $result = $result && change_field_type($table, $field);
    }
    if ($result && $oldversion < 2009070300) {
        /// Changing type of field answer on table studynotes_relation_answers to text
        $table = new XMLDBTable('studynotes_relation_answers');
        $field = new XMLDBField('answer');
        $field->setAttributes(XMLDB_TYPE_TEXT, 'medium', null, null, null, null, null, null, 'id');
        /// Launch change of type for field answer
        $result = $result && change_field_type($table, $field);
    }
    if ($result && $oldversion < 2009070300) {
        /// Changing type of field question on table studynotes_rel_questions to text
        $table = new XMLDBTable('studynotes_rel_questions');
        $field = new XMLDBField('question');
        $field->setAttributes(XMLDB_TYPE_TEXT, 'medium', null, XMLDB_NOTNULL, null, null, null, null, 'id');
        /// Launch change of type for field question
        $result = $result && change_field_type($table, $field);
    }
    return $result;
}
Esempio n. 10
0
 /**
  * Invoke method, every class will have its own
  * returns true/false on completion, setting both
  * errormsg and output as necessary
  */
 function invoke()
 {
     parent::invoke();
     $result = true;
     /// Set own core attributes
     //$this->does_generate = ACTION_NONE;
     $this->does_generate = ACTION_GENERATE_HTML;
     /// These are always here
     global $CFG, $XMLDB, $db;
     /// ADD YOUR CODE HERE
     require_once $CFG->libdir . '/ddllib.php';
     /// Where all the tests will be stored
     $tests = array();
     /// The back to edit table button
     $b = ' <p class="centerpara buttons">';
     $b .= '<a href="index.php">[' . $this->str['back'] . ']</a>';
     $b .= '</p>';
     $o = $b;
     /// Silenty drop any previous test tables
     $table = new XMLDBTable('testtable');
     if (table_exists($table)) {
         $status = drop_table($table, true, false);
     }
     $table = new XMLDBTable('anothertest');
     if (table_exists($table)) {
         $status = drop_table($table, true, false);
     }
     $table = new XMLDBTable('newnameforthetable');
     if (table_exists($table)) {
         $status = drop_table($table, true, false);
     }
     /// 1st test. Complete table creation.
     $table = new XMLDBTable('testtable');
     $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
     $table->addFieldInfo('course', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
     $table->addFieldInfo('type', XMLDB_TYPE_CHAR, '20', null, XMLDB_NOTNULL, null, XMLDB_ENUM, array('single', 'news', 'general', 'social', 'eachuser', 'teacher', 'qanda'), 'general');
     $table->addFieldInfo('name', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, null);
     $table->addFieldInfo('intro', XMLDB_TYPE_TEXT, 'small', null, XMLDB_NOTNULL, null, null, null, null);
     $table->addFieldInfo('logo', XMLDB_TYPE_BINARY, 'big', null, XMLDB_NOTNULL, null, null, null);
     $table->addFieldInfo('assessed', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
     $table->addFieldInfo('assesstimestart', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
     $table->addFieldInfo('assesstimefinish', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
     $table->addFieldInfo('scale', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null, null, '0');
     $table->addFieldInfo('maxbytes', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
     $table->addFieldInfo('forcesubscribe', XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
     $table->addFieldInfo('trackingtype', XMLDB_TYPE_INTEGER, '2', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '1');
     $table->addFieldInfo('rsstype', XMLDB_TYPE_INTEGER, '2', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
     $table->addFieldInfo('rssarticles', XMLDB_TYPE_INTEGER, '2', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
     $table->addFieldInfo('timemodified', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
     $table->addFieldInfo('grade', XMLDB_TYPE_NUMBER, '20,0', XMLDB_UNSIGNED, null, null, null, null, null);
     $table->addFieldInfo('percent', XMLDB_TYPE_NUMBER, '5,2', null, null, null, null, null, null);
     $table->addFieldInfo('warnafter', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
     $table->addFieldInfo('blockafter', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
     $table->addFieldInfo('blockperiod', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
     $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
     $table->addKeyInfo('type-name', XMLDB_KEY_UNIQUE, array('type', 'name'));
     $table->addIndexInfo('course', XMLDB_INDEX_NOTUNIQUE, array('course'));
     $table->addIndexInfo('rsstype', XMLDB_INDEX_UNIQUE, array('rsstype'));
     $table->setComment("This is a test'n drop table. You can drop it safely");
     /// Get SQL code and execute it
     $test = new stdClass();
     $test->sql = $table->getCreateTableSQL($CFG->dbtype, $CFG->prefix, true);
     $test->status = create_table($table, false, false);
     if (!$test->status) {
         $test->error = $db->ErrorMsg();
     }
     $tests['create table'] = $test;
     /// 2nd test. drop table
     if ($test->status) {
         /// Get SQL code and execute it
         $test = new stdClass();
         $test->sql = $table->getDropTableSQL($CFG->dbtype, $CFG->prefix, true);
         $test->status = drop_table($table, false, false);
         if (!$test->status) {
             $test->error = $db->ErrorMsg();
         }
         $tests['drop table'] = $test;
     }
     /// 3rd test. creating another, smaller table
     if ($test->status) {
         $table = new XMLDBTable('anothertest');
         $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
         $table->addFieldInfo('course', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
         $table->addFieldInfo('name', XMLDB_TYPE_CHAR, '30', null, null, null, null, null, 'Moodle');
         $table->addFieldInfo('secondname', XMLDB_TYPE_CHAR, '30', null, XMLDB_NOTNULL, null, null, null, null);
         $table->addFieldInfo('intro', XMLDB_TYPE_TEXT, 'medium', null, XMLDB_NOTNULL, null, null, null, null);
         $table->addFieldInfo('avatar', XMLDB_TYPE_BINARY, 'medium', null, null, null, null, null, null);
         $table->addFieldInfo('grade', XMLDB_TYPE_NUMBER, '20,10', null, null, null, null, null);
         $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
         /// Get SQL code and execute it
         $test = new stdClass();
         $test->sql = $table->getCreateTableSQL($CFG->dbtype, $CFG->prefix, true);
         $test->status = create_table($table, false, false);
         if (!$test->status) {
             $test->error = $db->ErrorMsg();
         }
         $tests['create table - 2'] = $test;
     }
     /// Insert two records to do the work with real data
     $rec->course = 1;
     $rec->name = 'Martin';
     $rec->secondname = 'Dougiamas';
     $rec->intro = 'The creator of Moodle';
     $rec->grade = 10.0001;
     insert_record('anothertest', $rec);
     $rec->course = 2;
     $rec->name = 'Eloy';
     $rec->secondname = 'Lafuente';
     $rec->intro = 'One poor developer';
     $rec->grade = 9.99;
     insert_record('anothertest', $rec);
     /// 4th test. Adding one complex enum field
     if ($test->status) {
         /// Create a new field with complex specs (enums are good candidates)
         $field = new XMLDBField('type');
         $field->setAttributes(XMLDB_TYPE_CHAR, '20', null, XMLDB_NOTNULL, null, XMLDB_ENUM, array('single', 'news', 'general', 'social', 'eachuser', 'teacher', 'qanda'), 'general', 'course');
         /// Get SQL code and execute it
         $test = new stdClass();
         $test->sql = $table->getAddFieldSQL($CFG->dbtype, $CFG->prefix, $field, true);
         $test->status = add_field($table, $field, false, false);
         if (!$test->status) {
             $test->error = $db->ErrorMsg();
         }
         $tests['add enum field'] = $test;
     }
     /// 5th test. Dropping one complex enum field
     if ($test->status) {
         /// Create a new field with complex specs (enums are good candidates)
         $test = new stdClass();
         $test->sql = $table->getDropFieldSQL($CFG->dbtype, $CFG->prefix, $field, true);
         $test->status = drop_field($table, $field, false, false);
         if (!$test->status) {
             $test->error = $db->ErrorMsg();
         }
         $tests['drop enum field'] = $test;
     }
     /// 6th test. Adding one complex enum field
     if ($test->status) {
         /// Create a new field with complex specs (enums are good candidates)
         $field = new XMLDBField('type');
         $field->setAttributes(XMLDB_TYPE_CHAR, '20', null, XMLDB_NOTNULL, null, XMLDB_ENUM, array('single', 'news', 'general', 'social', 'eachuser', 'teacher', 'qanda'), 'general', 'course');
         /// Get SQL code and execute it
         $test = new stdClass();
         $test->sql = $table->getAddFieldSQL($CFG->dbtype, $CFG->prefix, $field, true);
         $test->status = add_field($table, $field, false, false);
         if (!$test->status) {
             $test->error = $db->ErrorMsg();
         }
         $tests['add enum field again'] = $test;
     }
     /// 7th test. Adding one numeric field
     if ($test->status) {
         /// Create a new field (numeric)
         $field = new XMLDBField('onenumber');
         $field->setAttributes(XMLDB_TYPE_INTEGER, '6', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, 0, 'type');
         /// Get SQL code and execute it
         $test = new stdClass();
         $test->sql = $table->getAddFieldSQL($CFG->dbtype, $CFG->prefix, $field, true);
         $test->status = add_field($table, $field, false, false);
         if (!$test->status) {
             $test->error = $db->ErrorMsg();
         }
         $tests['add numeric field'] = $test;
     }
     /// 8th test. Dropping one complex enum field
     if ($test->status) {
         /// Create a new field with complex specs (enums are good candidates)
         $field = new XMLDBField('type');
         $test = new stdClass();
         $test->sql = $table->getDropFieldSQL($CFG->dbtype, $CFG->prefix, $field, true);
         $test->status = drop_field($table, $field, false, false);
         if (!$test->status) {
             $test->error = $db->ErrorMsg();
         }
         $tests['drop enum field again'] = $test;
     }
     /// 9th test. Change the type of one column from integer to varchar
     if ($test->status) {
         /// Get SQL code and execute it
         $test = new stdClass();
         $field = new XMLDBField('course');
         $field->setAttributes(XMLDB_TYPE_CHAR, '30', null, XMLDB_NOTNULL, null, null, null, '0');
         $test->sql = $table->getAlterFieldSQL($CFG->dbtype, $CFG->prefix, $field, true);
         $test->status = change_field_type($table, $field, false, false);
         if (!$test->status) {
             $test->error = $db->ErrorMsg();
         }
         $tests['change field type (int2char)'] = $test;
     }
     /// 10th test. Change the type of one column from varchar to integer
     if ($test->status) {
         /// Get SQL code and execute it
         $test = new stdClass();
         $field = new XMLDBField('course');
         $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
         $test->sql = $table->getAlterFieldSQL($CFG->dbtype, $CFG->prefix, $field, true);
         $test->status = change_field_type($table, $field, false, false);
         if (!$test->status) {
             $test->error = $db->ErrorMsg();
         }
         $tests['change field type (char2int)'] = $test;
     }
     /// 11th test. Change the type of one column from number to varchar
     if ($test->status) {
         /// Get SQL code and execute it
         $test = new stdClass();
         $field = new XMLDBField('grade');
         $field->setAttributes(XMLDB_TYPE_CHAR, '20', null, XMLDB_NOTNULL, null, null, null, "test'n drop");
         $test->sql = $table->getAlterFieldSQL($CFG->dbtype, $CFG->prefix, $field, true);
         $test->status = change_field_type($table, $field, false, false);
         if (!$test->status) {
             $test->error = $db->ErrorMsg();
         }
         $tests['change field type (number2char)'] = $test;
     }
     /// 12th test. Change the type of one column from varchar to float
     if ($test->status) {
         /// Get SQL code and execute it
         $test = new stdClass();
         $field = new XMLDBField('grade');
         $field->setAttributes(XMLDB_TYPE_FLOAT, '20,10', XMLDB_UNSIGNED, null, null, null, null, null);
         $test->sql = $table->getAlterFieldSQL($CFG->dbtype, $CFG->prefix, $field, true);
         $test->status = change_field_type($table, $field, false, false);
         if (!$test->status) {
             $test->error = $db->ErrorMsg();
         }
         $tests['change field type (char2float)'] = $test;
     }
     /// 13th test. Change the type of one column from float to char
     if ($test->status) {
         /// Get SQL code and execute it
         $test = new stdClass();
         $field = new XMLDBField('grade');
         $field->setAttributes(XMLDB_TYPE_CHAR, '20', null, XMLDB_NOTNULL, null, null, null, 'test');
         $test->sql = $table->getAlterFieldSQL($CFG->dbtype, $CFG->prefix, $field, true);
         $test->status = change_field_type($table, $field, false, false);
         if (!$test->status) {
             $test->error = $db->ErrorMsg();
         }
         $tests['change field type (float2char)'] = $test;
     }
     /// 14th test. Change the type of one column from char to number
     if ($test->status) {
         /// Get SQL code and execute it
         $test = new stdClass();
         $field = new XMLDBField('grade');
         $field->setAttributes(XMLDB_TYPE_NUMBER, '20,10', XMLDB_UNSIGNED, null, null, null, null, null);
         $test->sql = $table->getAlterFieldSQL($CFG->dbtype, $CFG->prefix, $field, true);
         $test->status = change_field_type($table, $field, false, false);
         if (!$test->status) {
             $test->error = $db->ErrorMsg();
         }
         $tests['change field type (char2number)'] = $test;
     }
     /// 15th test. Change the precision of one text field
     if ($test->status) {
         /// Get SQL code and execute it
         $test = new stdClass();
         $field = new XMLDBField('intro');
         $field->setAttributes(XMLDB_TYPE_TEXT, 'big', null, XMLDB_NOTNULL, null, null, null, null);
         $test->sql = $table->getAlterFieldSQL($CFG->dbtype, $CFG->prefix, $field, true);
         $test->status = change_field_precision($table, $field, false, false);
         if (!$test->status) {
             $test->error = $db->ErrorMsg();
         }
         $tests['change field precision (text)'] = $test;
     }
     /// 16th test. Change the precision of one char field
     if ($test->status) {
         /// Get SQL code and execute it
         $test = new stdClass();
         $field = new XMLDBField('secondname');
         $field->setAttributes(XMLDB_TYPE_CHAR, '10', null, XMLDB_NOTNULL, null, null, null, null);
         $test->sql = $table->getAlterFieldSQL($CFG->dbtype, $CFG->prefix, $field, true);
         $test->status = change_field_precision($table, $field, false, false);
         if (!$test->status) {
             $test->error = $db->ErrorMsg();
         }
         $tests['change field precision (char)'] = $test;
     }
     /// 17th test. Change the precision of one numeric field
     if ($test->status) {
         /// Get SQL code and execute it
         $test = new stdClass();
         $field = new XMLDBField('grade');
         $field->setAttributes(XMLDB_TYPE_NUMBER, '10,2', null, null, null, null, null, null);
         $test->sql = $table->getAlterFieldSQL($CFG->dbtype, $CFG->prefix, $field, true);
         $test->status = change_field_precision($table, $field, false, false);
         if (!$test->status) {
             $test->error = $db->ErrorMsg();
         }
         $tests['change field precision (number)'] = $test;
     }
     /// 18th test. Change the precision of one integer field to a smaller one
     if ($test->status) {
         /// Get SQL code and execute it
         $test = new stdClass();
         $field = new XMLDBField('course');
         $field->setAttributes(XMLDB_TYPE_INTEGER, '5', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
         $test->sql = $table->getAlterFieldSQL($CFG->dbtype, $CFG->prefix, $field, true);
         $test->status = change_field_precision($table, $field, false, false);
         if (!$test->status) {
             $test->error = $db->ErrorMsg();
         }
         $tests['change field precision (integer) to smaller one'] = $test;
     }
     /// 19th test. Change the sign of one numeric field to unsigned
     if ($test->status) {
         /// Get SQL code and execute it
         $test = new stdClass();
         $field = new XMLDBField('grade');
         $field->setAttributes(XMLDB_TYPE_NUMBER, '10,2', XMLDB_UNSIGNED, null, null, null, null, null);
         $test->sql = $table->getAlterFieldSQL($CFG->dbtype, $CFG->prefix, $field, true);
         $test->status = change_field_unsigned($table, $field, false, false);
         if (!$test->status) {
             $test->error = $db->ErrorMsg();
         }
         $tests['change field sign (unsigned)'] = $test;
     }
     /// 20th test. Change the sign of one numeric field to signed
     if ($test->status) {
         /// Get SQL code and execute it
         $test = new stdClass();
         $field = new XMLDBField('grade');
         $field->setAttributes(XMLDB_TYPE_NUMBER, '10,2', null, null, null, null, null, null);
         $test->sql = $table->getAlterFieldSQL($CFG->dbtype, $CFG->prefix, $field, true);
         $test->status = change_field_unsigned($table, $field, false, false);
         if (!$test->status) {
             $test->error = $db->ErrorMsg();
         }
         $tests['change field sign (signed)'] = $test;
     }
     /// 21th test. Change the nullability of one char field to not null
     if ($test->status) {
         /// Get SQL code and execute it
         $test = new stdClass();
         $field = new XMLDBField('name');
         $field->setAttributes(XMLDB_TYPE_CHAR, '30', null, XMLDB_NOTNULL, null, null, null, 'Moodle');
         $test->sql = $table->getAlterFieldSQL($CFG->dbtype, $CFG->prefix, $field, true);
         $test->status = change_field_notnull($table, $field, false, false);
         if (!$test->status) {
             $test->error = $db->ErrorMsg();
         }
         $tests['change field nullability (not null)'] = $test;
     }
     /// 22th test. Change the nullability of one char field to null
     if ($test->status) {
         /// Get SQL code and execute it
         $test = new stdClass();
         $field = new XMLDBField('name');
         $field->setAttributes(XMLDB_TYPE_CHAR, '30', null, null, null, null, null, 'Moodle');
         $test->sql = $table->getAlterFieldSQL($CFG->dbtype, $CFG->prefix, $field, true);
         $test->status = change_field_notnull($table, $field, false, false);
         if (!$test->status) {
             $test->error = $db->ErrorMsg();
         }
         $tests['change field nullability (null)'] = $test;
     }
     /// 23th test. Dropping the default of one field
     if ($test->status) {
         /// Get SQL code and execute it
         $test = new stdClass();
         $field = new XMLDBField('name');
         $field->setAttributes(XMLDB_TYPE_CHAR, '30', null, null, null, null, null, null);
         $test->sql = $table->getModifyDefaultSQL($CFG->dbtype, $CFG->prefix, $field, true);
         $test->status = change_field_default($table, $field, false, false);
         if (!$test->status) {
             $test->error = $db->ErrorMsg();
         }
         $tests['drop field default of NULL field'] = $test;
     }
     /// 24th test. Creating the default for one field
     if ($test->status) {
         /// Get SQL code and execute it
         $test = new stdClass();
         $field = new XMLDBField('name');
         $field->setAttributes(XMLDB_TYPE_CHAR, '30', null, null, null, null, null, 'Moodle');
         $test->sql = $table->getModifyDefaultSQL($CFG->dbtype, $CFG->prefix, $field, true);
         $test->status = change_field_default($table, $field, false, false);
         if (!$test->status) {
             $test->error = $db->ErrorMsg();
         }
         $tests['add field default of NULL field'] = $test;
     }
     /// 25th test. Creating the default for one field
     if ($test->status) {
         /// Get SQL code and execute it
         $test = new stdClass();
         $field = new XMLDBField('secondname');
         $field->setAttributes(XMLDB_TYPE_CHAR, '10', null, XMLDB_NOTNULL, null, null, null, 'Moodle2');
         $test->sql = $table->getModifyDefaultSQL($CFG->dbtype, $CFG->prefix, $field, true);
         $test->status = change_field_default($table, $field, false, false);
         if (!$test->status) {
             $test->error = $db->ErrorMsg();
         }
         $tests['add field default of NOT NULL field'] = $test;
     }
     /// 26th test. Dropping the default of one NOT NULL field
     if ($test->status) {
         /// Get SQL code and execute it
         $test = new stdClass();
         $field = new XMLDBField('secondname');
         $field->setAttributes(XMLDB_TYPE_CHAR, '10', null, XMLDB_NOTNULL, null, null, null, null);
         $test->sql = $table->getModifyDefaultSQL($CFG->dbtype, $CFG->prefix, $field, true);
         $test->status = change_field_default($table, $field, false, false);
         if (!$test->status) {
             $test->error = $db->ErrorMsg();
         }
         $tests['drop field default of NOT NULL field'] = $test;
     }
     /// 27th test. Adding one unique index to the table
     if ($test->status) {
         /// Get SQL code and execute it
         $test = new stdClass();
         $index = new XMLDBIndex('secondname');
         $index->setAttributes(XMLDB_INDEX_UNIQUE, array('name', 'secondname', 'grade'));
         $test->sql = $table->getAddIndexSQL($CFG->dbtype, $CFG->prefix, $index, true);
         $test->status = add_index($table, $index, false, false);
         if (!$test->status) {
             $test->error = $db->ErrorMsg();
         }
         $tests['add unique index'] = $test;
     }
     /// 28th test. Adding one not unique index to the table
     if ($test->status) {
         /// Get SQL code and execute it
         $test = new stdClass();
         $index = new XMLDBIndex('secondname');
         $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('course', 'name'));
         $test->sql = $table->getAddIndexSQL($CFG->dbtype, $CFG->prefix, $index, true);
         $test->status = add_index($table, $index, false, false);
         if (!$test->status) {
             $test->error = $db->ErrorMsg();
         }
         $tests['add not unique index'] = $test;
     }
     /// 29th test. Re-add the same index than previous test. Check find_index_name() works.
     if ($test->status) {
         /// Get SQL code and execute it
         $test = new stdClass();
         $index = new XMLDBIndex('secondname');
         $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('name', 'course'));
         if ($indexfound = find_index_name($table, $index)) {
             $test->status = true;
             $test->sql = array();
         } else {
             $test->status = true;
             $test->error = 'Index not found!';
             $test->sql = array();
         }
         $tests['check find_index_name()'] = $test;
     }
     /// 30th test. Dropping one index from the table
     if ($test->status) {
         /// Get SQL code and execute it
         $test = new stdClass();
         $index = new XMLDBIndex('name');
         $index->setAttributes(XMLDB_INDEX_UNIQUE, array('name', 'grade', 'secondname'));
         $test->sql = $table->getDropIndexSQL($CFG->dbtype, $CFG->prefix, $index, true);
         $test->status = drop_index($table, $index, false, false);
         if (!$test->status) {
             $test->error = $db->ErrorMsg();
         }
         $tests['drop index'] = $test;
     }
     /// 31th test. Adding one unique key to the table
     if ($test->status) {
         /// Get SQL code and execute it
         $test = new stdClass();
         $key = new XMLDBKey('id-course-grade');
         $key->setAttributes(XMLDB_KEY_UNIQUE, array('id', 'course', 'grade'));
         $test->sql = $table->getAddKeySQL($CFG->dbtype, $CFG->prefix, $key, true);
         $test->status = add_key($table, $key, false, false);
         if (!$test->status) {
             $test->error = $db->ErrorMsg();
         }
         $tests['add unique key'] = $test;
     }
     /// 32th test. Adding one foreign+unique key to the table
     if ($test->status) {
         /// Get SQL code and execute it
         $test = new stdClass();
         $key = new XMLDBKey('course');
         $key->setAttributes(XMLDB_KEY_FOREIGN_UNIQUE, array('course'), 'anothertest', array('id'));
         $test->sql = $table->getAddKeySQL($CFG->dbtype, $CFG->prefix, $key, true);
         $test->status = add_key($table, $key, false, false);
         if (!$test->status) {
             $test->error = $db->ErrorMsg();
         }
         $tests['add foreign+unique key'] = $test;
     }
     /// 33th test. Drop one key
     if ($test->status) {
         /// Get SQL code and execute it
         $test = new stdClass();
         $key = new XMLDBKey('course');
         $key->setAttributes(XMLDB_KEY_FOREIGN_UNIQUE, array('course'), 'anothertest', array('id'));
         $test->sql = $table->getDropKeySQL($CFG->dbtype, $CFG->prefix, $key, true);
         $test->status = drop_key($table, $key, false, false);
         if (!$test->status) {
             $test->error = $db->ErrorMsg();
         }
         $tests['drop foreign+unique key'] = $test;
     }
     /// 34th test. Adding one foreign key to the table
     if ($test->status) {
         /// Get SQL code and execute it
         $test = new stdClass();
         $key = new XMLDBKey('course');
         $key->setAttributes(XMLDB_KEY_FOREIGN, array('course'), 'anothertest', array('id'));
         $test->sql = $table->getAddKeySQL($CFG->dbtype, $CFG->prefix, $key, true);
         $test->status = add_key($table, $key, false, false);
         if (!$test->status) {
             $test->error = $db->ErrorMsg();
         }
         $tests['add foreign key'] = $test;
     }
     /// 35th test. Drop one foreign key
     if ($test->status) {
         /// Get SQL code and execute it
         $test = new stdClass();
         $key = new XMLDBKey('course');
         $key->setAttributes(XMLDB_KEY_FOREIGN, array('course'), 'anothertest', array('id'));
         $test->sql = $table->getDropKeySQL($CFG->dbtype, $CFG->prefix, $key, true);
         $test->status = drop_key($table, $key, false, false);
         if (!$test->status) {
             $test->error = $db->ErrorMsg();
         }
         $tests['drop foreign key'] = $test;
     }
     /// 36th test. Adding one complex enum field
     if ($test->status) {
         /// Create a new field with complex specs (enums are good candidates)
         $field = new XMLDBField('type');
         $field->setAttributes(XMLDB_TYPE_CHAR, '20', null, XMLDB_NOTNULL, null, XMLDB_ENUM, array('single', 'news', 'general', 'social', 'eachuser', 'teacher', 'qanda'), 'general', 'course');
         /// Get SQL code and execute it
         $test = new stdClass();
         $test->sql = $table->getAddFieldSQL($CFG->dbtype, $CFG->prefix, $field, true);
         $test->status = add_field($table, $field, false, false);
         if (!$test->status) {
             $test->error = $db->ErrorMsg();
         }
         $tests['add field with enum'] = $test;
     }
     /// 37th test. Dropping the enum of one field
     if ($test->status) {
         /// Get SQL code and execute it
         $test = new stdClass();
         $field = new XMLDBField('type');
         $field->setAttributes(XMLDB_TYPE_CHAR, '20', null, XMLDB_NOTNULL, null, null, null, 'general', 'course');
         $test->sql = $table->getModifyEnumSQL($CFG->dbtype, $CFG->prefix, $field, true);
         $test->status = change_field_enum($table, $field, false, false);
         if (!$test->status) {
             $test->error = $db->ErrorMsg();
         }
         $tests['delete enumlist from one field'] = $test;
     }
     /// 38th test. Creating the enum for one field
     if ($test->status) {
         /// Get SQL code and execute it
         $test = new stdClass();
         $field = new XMLDBField('type');
         $field->setAttributes(XMLDB_TYPE_CHAR, '20', null, XMLDB_NOTNULL, null, XMLDB_ENUM, array('single', 'news', 'general', 'social', 'eachuser', 'teacher', 'qanda'), 'general', 'course');
         $test->sql = $table->getModifyEnumSQL($CFG->dbtype, $CFG->prefix, $field, true);
         $test->status = change_field_enum($table, $field, false, false);
         if (!$test->status) {
             $test->error = $db->ErrorMsg();
         }
         $tests['add enumlist to one field'] = $test;
     }
     /// 39th test. Renaming one index
     if ($test->status) {
         /// Get SQL code and execute it
         $test = new stdClass();
         $index = new XMLDBIndex('anyname');
         $index->setAttributes(XMLDB_INDEX_UNIQUE, array('name', 'course'));
         $test->sql = $table->getRenameIndexSQL($CFG->dbtype, $CFG->prefix, $index, 'newnamefortheindex', true);
         $test->status = rename_index($table, $index, 'newnamefortheindex', false, false);
         if (!$test->status) {
             $test->error = $db->ErrorMsg();
         }
         $tests['rename index (experimental. DO NOT USE IT)'] = $test;
     }
     /// 40th test. Renaming one key
     if ($test->status) {
         /// Get SQL code and execute it
         $test = new stdClass();
         $key = new XMLDBKey('anyname');
         $key->setAttributes(XMLDB_KEY_UNIQUE, array('id', 'course', 'grade'));
         $test->sql = $table->getRenameKeySQL($CFG->dbtype, $CFG->prefix, $key, 'newnameforthekey', true);
         $test->status = rename_key($table, $key, 'newnameforthekey', false, false);
         if (!$test->status) {
             $test->error = $db->ErrorMsg();
         }
         $tests['rename key (experimental. DO NOT USE IT)'] = $test;
     }
     /// 41th test. Renaming one field
     if ($test->status) {
         /// Get SQL code and execute it
         $test = new stdClass();
         $field = new XMLDBField('type');
         $field->setAttributes(XMLDB_TYPE_CHAR, '20', null, XMLDB_NOTNULL, null, XMLDB_ENUM, array('single', 'news', 'general', 'social', 'eachuser', 'teacher', 'qanda'), 'general', 'course');
         $test->sql = $table->getRenameFieldSQL($CFG->dbtype, $CFG->prefix, $field, 'newnameforthefield', true);
         $test->status = rename_field($table, $field, 'newnameforthefield', false, false);
         if (!$test->status) {
             $test->error = $db->ErrorMsg();
         }
         $tests['rename field'] = $test;
     }
     /// 42th test. Renaming one table
     if ($test->status) {
         /// Get SQL code and execute it
         $test = new stdClass();
         $test->sql = $table->getRenameTableSQL($CFG->dbtype, $CFG->prefix, 'newnameforthetable', true);
         $test->status = rename_table($table, 'newnameforthetable', false, false);
         if (!$test->status) {
             $test->error = $db->ErrorMsg();
         }
         $tests['rename table'] = $test;
     }
     /// 43th test. Add enum to field containing enum
     if ($test->status) {
         /// Add enum to field containing enum
         $table->setName('newnameforthetable');
         $field = new XMLDBField('newnameforthefield');
         $field->setAttributes(XMLDB_TYPE_CHAR, '20', null, XMLDB_NOTNULL, null, XMLDB_ENUM, array('single', 'news', 'general', 'social', 'eachuser', 'teacher', 'qanda'), 'general', 'course');
         /// Get SQL code and execute it
         $test = new stdClass();
         $test->sql = $table->getModifyEnumSQL($CFG->dbtype, $CFG->prefix, $field, true);
         $test->status = change_field_enum($table, $field, false, false);
         /// Let's see if the constraint exists to alter results
         if (check_constraint_exists($table, $field)) {
             $test->sql = array('Nothing executed. Enum already exists. Correct.');
         } else {
             $test->status = false;
         }
         if (!$test->status) {
             $test->error = $db->ErrorMsg();
         }
         $tests['add enum to field containing enum'] = $test;
     }
     /// 44th test. Drop enum from field containing enum
     if ($test->status) {
         /// Drop enum from field containing enum
         $table->setName('newnameforthetable');
         $field = new XMLDBField('newnameforthefield');
         $field->setAttributes(XMLDB_TYPE_CHAR, '20', null, XMLDB_NOTNULL, null, null, null, 'general', 'course');
         /// Get SQL code and execute it
         $test = new stdClass();
         $test->sql = $table->getModifyEnumSQL($CFG->dbtype, $CFG->prefix, $field, true);
         $test->status = change_field_enum($table, $field, false, false);
         if (!$test->status) {
             $test->error = $db->ErrorMsg();
         }
         $tests['drop enum from field containing enum'] = $test;
     }
     /// 45th test. Drop enum from field not containing enum
     if ($test->status) {
         /// Drop enum from field not containing enum
         $table->setName('newnameforthetable');
         $field = new XMLDBField('newnameforthefield');
         $field->setAttributes(XMLDB_TYPE_CHAR, '20', null, XMLDB_NOTNULL, null, null, null, 'general', 'course');
         /// Get SQL code and execute it
         $test = new stdClass();
         $test->sql = $table->getModifyEnumSQL($CFG->dbtype, $CFG->prefix, $field, true);
         $test->status = change_field_enum($table, $field, false, false);
         /// Let's see if the constraint exists to alter results
         if (!check_constraint_exists($table, $field)) {
             $test->sql = array('Nothing executed. Enum does not exists. Correct.');
         } else {
             $test->status = false;
         }
         if (!$test->status) {
             $test->error = $db->ErrorMsg();
         }
         $tests['drop enum from field not containing enum'] = $test;
     }
     /// 46th test. Getting the PK sequence name for one table
     if ($test->status) {
         $test = new stdClass();
         $test->sql = array(find_sequence_name($table));
         $test->status = find_sequence_name($table);
         if (!$test->status) {
             if (!($test->error = $db->ErrorMsg())) {
                 //If no db errors, result is ok. Just the driver doesn't support this
                 $test->sql = array('Not needed for this DB. Correct.');
                 $test->status = true;
             }
         }
         $tests['find sequence name'] = $test;
     }
     /// 47th test. Inserting TEXT contents
     $textlib = textlib_get_instance();
     if ($test->status) {
         $test = new stdClass();
         $test->status = false;
         $test->sql = array();
         $basetext = "\\ ''語 • Русский • Deutsch • English • Español • Français • Italiano • Nederlands • Polski • Português • Svenska • العربية • فارسی 한국어 • עברית • ไทย中文  Ελληνικά • Български • Српски • Українська • Bosanski • Català • Česky • Dansk • Eesti • Simple English • Esperanto • Euskara • Galego • Hrvatski • Ido • Bahasa Indonesia • Íslenska • Lëtzebuergesch • Lietuvių • Magyar • Bahasa Melayu اردو • ئۇيغۇرچه • हिन्दी • नेपाल भाषा मराठी • தமிழ் Հայերեն • Беларуская • Чăваш • Ирон æвзаг • Македонски • Сибирской говор • Afrikaans • Aragonés • Arpitan • Asturianu • Kreyòl Ayisyen • Azərbaycan • Bân-lâm-gú • Basa Banyumasan • Brezhoneg • Corsu • Cymraeg • Deitsch • Føroyskt • Frysk • Furlan • Gaeilge • Gàidhlig • Ilokano • Interlingua • Basa Jawa • Kapampangan • Kernewek • Kurdî  كوردی • Ladino  לאדינו • Latina • Latviešu • Limburgs • Lumbaart • Nedersaksisch • Nouormand • Occitan • O‘zbek • Piemontèis • Plattdüütsch • Ripoarisch • Sámegiella • Scots • Shqip • Sicilianu • Sinugboanon • Srpskohrvatski / Српскохрватски • Basa Sunda • Kiswahili • Tagalog • Tatarça • Walon • Winaray  Авар • Башҡорт • Кыргызча  Монгол • Қазақша • Тоҷикӣ • Удмурт • Armãneashce • Bamanankan • Eald Englisc • Gaelg • Interlingue • Kaszëbsczi • Kongo • Ligure • Lingála • lojban • Malagasy • Malti • Māori • Nāhuatl • Ekakairũ Naoero • Novial • Pangasinán • Tok Pisin • Romani / रोमानी • Rumantsch • Runa Simi • Sardu • Tetun • Türkmen / تركمن / Туркмен • Vèneto • Volapük • Võro • West-Vlaoms • Wollof • Zazaki • Žemaitėška";
         /// Create one big text (1.500.000 chars)
         $fulltext = '';
         for ($i = 0; $i < 1000; $i++) {
             //1500 * 1000 chars
             $fulltext .= $basetext;
         }
         /// Build the record to insert
         $rec->intro = addslashes($fulltext);
         $rec->name = 'texttest';
         /// Calculate its length
         $textlen = $textlib->strlen($fulltext);
         if ($rec->id = insert_record('newnameforthetable', $rec)) {
             if ($new = get_record('newnameforthetable', 'id', $rec->id)) {
                 delete_records('newnameforthetable', 'id', $new->id);
                 $newtextlen = $textlib->strlen($new->intro);
                 if ($fulltext === $new->intro) {
                     $test->sql = array($newtextlen . ' cc. (text) sent and received ok');
                     $test->status = true;
                 } else {
                     $test->error = $db->ErrorMsg();
                     $test->sql = array($newtextlen . ' cc. (text) transfer failed. Data changed!');
                     print_object($new);
                     $test->status = false;
                 }
             } else {
                 $test->error = $db->ErrorMsg();
             }
         } else {
             $test->error = $db->ErrorMsg();
         }
         $tests['insert record ' . $textlen . ' cc. (text)'] = $test;
     }
     /// 48th test. Inserting BINARY contents
     if ($test->status) {
         $test = new stdClass();
         $test->status = false;
         /// Build the record to insert
         $rec->avatar = addslashes($fulltext);
         $rec->name = 'binarytest';
         /// Calculate its length
         $textlen = strlen($fulltext);
         if ($rec->id = insert_record('newnameforthetable', $rec)) {
             if ($new = get_record('newnameforthetable', 'id', $rec->id)) {
                 $newtextlen = strlen($new->avatar);
                 if ($fulltext === $new->avatar) {
                     $test->sql = array($newtextlen . ' bytes (binary) sent and received ok');
                     $test->status = true;
                 } else {
                     $test->error = $db->ErrorMsg();
                     $test->sql = array($newtextlen . ' bytes (binary) transfer failed. Data changed!');
                     $test->status = false;
                 }
             } else {
                 $test->error = $db->ErrorMsg();
             }
         } else {
             $test->error = $db->ErrorMsg();
         }
         $tests['insert record ' . $textlen . ' bytes (binary)'] = $test;
     }
     /// 49th test. update_record with TEXT and BINARY contents
     if ($test->status) {
         $test = new stdClass();
         $test->status = false;
         $test->sql = array();
         /// Build the record to insert
         $rec->intro = addslashes($basetext);
         $rec->avatar = addslashes($basetext);
         $rec->name = 'updatelobs';
         /// Calculate its length
         $textlen = $textlib->strlen($basetext);
         $imglen = strlen($basetext);
         if (update_record('newnameforthetable', $rec)) {
             if ($new = get_record('newnameforthetable', 'id', $rec->id)) {
                 $newtextlen = $textlib->strlen($new->intro);
                 $newimglen = strlen($new->avatar);
                 if ($basetext === $new->avatar && $basetext === $new->intro) {
                     $test->sql = array($newtextlen . ' cc. (text) sent and received ok', $newimglen . ' bytes (binary) sent and received ok');
                     $test->status = true;
                 } else {
                     if ($rec->avatar !== $new->avatar) {
                         $test->error = $db->ErrorMsg();
                         $test->sql = array($newimglen . ' bytes (binary) transfer failed. Data changed!');
                         $test->status = false;
                     } else {
                         $test->error = $db->ErrorMsg();
                         $test->sql = array($newtextlen . ' cc. (text) transfer failed. Data changed!');
                         $test->status = false;
                     }
                 }
             } else {
                 $test->error = $db->ErrorMsg();
             }
         } else {
             $test->error = $db->ErrorMsg();
         }
         $tests['update record ' . $textlen . ' cc. (text) and ' . $imglen . ' bytes (binary)'] = $test;
     }
     /// 50th test. set_field with TEXT contents
     if ($test->status) {
         $test = new stdClass();
         $test->status = false;
         $test->sql = array();
         /// Build the record to insert
         $rec->intro = addslashes($fulltext);
         $rec->name = 'updatelobs';
         /// Calculate its length
         $textlen = $textlib->strlen($fulltext);
         if (set_field('newnameforthetable', 'intro', $rec->intro, 'name', $rec->name)) {
             if ($new = get_record('newnameforthetable', 'id', $rec->id)) {
                 $newtextlen = $textlib->strlen($new->intro);
                 if ($fulltext === $new->intro) {
                     $test->sql = array($newtextlen . ' cc. (text) sent and received ok');
                     $test->status = true;
                 } else {
                     $test->error = $db->ErrorMsg();
                     $test->sql = array($newtextlen . ' cc. (text) transfer failed. Data changed!');
                     $test->status = false;
                 }
             } else {
                 $test->error = $db->ErrorMsg();
             }
         } else {
             $test->error = $db->ErrorMsg();
         }
         $tests['set field ' . $textlen . ' cc. (text)'] = $test;
     }
     /// 51th test. set_field with BINARY contents
     if ($test->status) {
         $test = new stdClass();
         $test->status = false;
         $test->sql = array();
         /// Build the record to insert
         $rec->avatar = addslashes($fulltext);
         $rec->name = 'updatelobs';
         /// Calculate its length
         $textlen = strlen($fulltext);
         if (set_field('newnameforthetable', 'avatar', $rec->avatar, 'name', $rec->name)) {
             if ($new = get_record('newnameforthetable', 'id', $rec->id)) {
                 $newtextlen = strlen($new->avatar);
                 if ($fulltext === $new->avatar) {
                     $test->sql = array($newtextlen . ' bytes (binary) sent and received ok');
                     $test->status = true;
                 } else {
                     $test->error = $db->ErrorMsg();
                     $test->sql = array($newtextlen . ' bytes (binary) transfer failed. Data changed!');
                     $test->status = false;
                 }
             } else {
                 $test->error = $db->ErrorMsg();
             }
         } else {
             $test->error = $db->ErrorMsg();
         }
         $tests['set field ' . $textlen . ' bytes (binary)'] = $test;
     }
     /// TODO: Check here values of the inserted records to see that everything ha the correct value
     /// Iterate over tests, showing information as needed
     $o .= '<ol>';
     foreach ($tests as $key => $test) {
         $o .= '<li>' . $key . ($test->status ? '<font color="green"> Ok</font>' : ' <font color="red">Error</font>');
         if (!$test->status) {
             $o .= '<br/><font color="red">' . $test->error . '</font>';
         }
         $o .= '<pre>' . implode('<br/>', $test->sql) . '</pre>';
         $o .= '</li>';
     }
     $o .= '</ol>';
     $this->output = $o;
     /// Launch postaction if exists (leave this here!)
     if ($this->getPostAction() && $result) {
         return $this->launch($this->getPostAction());
     }
     /// Return ok if arrived here
     return $result;
 }
function xmldb_core_upgrade($oldversion = 0)
{
    ini_set('max_execution_time', 120);
    // Let's be safe
    raise_memory_limit('256M');
    $INNODB = is_mysql() ? ' TYPE=innodb' : '';
    $status = true;
    // We discovered that username case insensitivity was not being enforced at
    // most of the entry points to the system at which users can be created.
    // This problem manifested itself as users who had the same LOWER(username)
    // as another not being able to log in. The fix is to implement the checks,
    // rename the "duplicate" users and add a constraint on the database so it
    // can't happen again
    if ($oldversion < 2008040202) {
        $renamed = $newusernames = $oldusernames = array();
        $allusers = get_records_array('usr', '', '', 'id', 'id, username');
        $usernamemapping = array();
        foreach ($allusers as $user) {
            $oldusernames[] = $user->username;
            $usernamemapping[strtolower($user->username)][] = array('id' => $user->id, 'username' => $user->username);
        }
        foreach ($usernamemapping as $lcname => $users) {
            if (count($users) == 1) {
                continue;
            }
            // Uhohes. Rename the user(s) who were created last
            $skippedfirst = false;
            foreach ($users as $user) {
                if (!$skippedfirst) {
                    $skippedfirst = true;
                    continue;
                }
                $userobj = new User();
                $userobj->find_by_id($user['id']);
                // Append digits keeping total length <= 30
                $i = 1;
                $newname = substr($user['username'], 0, 29) . $i;
                while (isset($newusernames[$newname]) || isset($oldusernames[$newname])) {
                    $i++;
                    $newname = substr($user['username'], 0, 30 - floor(log10($i) + 1)) . $i;
                }
                set_field('usr', 'username', $newname, 'id', $user['id']);
                $newusernames[$newname] = true;
                $renamed[$newname] = $userobj;
                log_debug(" * Renamed {$user['username']} to {$newname}");
            }
        }
        if (!empty($renamed)) {
            // Notify changed usernames to administrator
            $report = '# Each line in this file is in the form "old_username new_username"' . "\n";
            $message = "Mahara now requires usernames to be unique, case insensitively.\n";
            $message .= "Some usernames on your site were changed during the upgrade:\n\n";
            foreach ($renamed as $newname => $olduser) {
                $report .= "{$olduser->username} {$newname}\n";
                $message .= "Old username: {$olduser->username}\n" . "New username: {$newname}\n\n";
            }
            $sitename = get_config('sitename');
            $file = get_config('dataroot') . 'user_migration_report_2.txt';
            if (file_put_contents($file, $report)) {
                $message .= "\n" . 'A copy of this list has been saved to the file ' . $file;
            }
            global $USER;
            email_user($USER, null, $sitename . ': User migration', $message);
            // Notify changed usernames to users
            $usermessagestart = "Your username at {$sitename} has been changed:\n\n";
            $usermessageend = "\n\nNext time you visit the site, please login using your new username.";
            foreach ($renamed as $newname => $olduser) {
                if ($olduser->email == '') {
                    continue;
                }
                log_debug("Attempting to notify {$newname} ({$olduser->email}) of their new username...");
                email_user($olduser, null, $sitename . ': User name changed', $usermessagestart . "Old username: {$olduser->username}\nNew username: {$newname}" . $usermessageend);
            }
        }
        // Now we know all usernames are unique over their lowercase values, we
        // can put an index in so data doesn't get all inconsistent next time
        if (is_postgres()) {
            execute_sql('DROP INDEX {usr_use_uix}');
            execute_sql('CREATE UNIQUE INDEX {usr_use_uix} ON {usr}(LOWER(username))');
        } else {
            // MySQL cannot create indexes over functions of columns. Too bad
            // for it. We won't drop the existing index because that offers a
            // large degree of protection, but when MySQL finally supports this
            // we will be able to add it
        }
        // Install a cron job to delete old session files
        $cron = new StdClass();
        $cron->callfunction = 'auth_remove_old_session_files';
        $cron->minute = '30';
        $cron->hour = '20';
        $cron->day = '*';
        $cron->month = '*';
        $cron->dayofweek = '*';
        insert_record('cron', $cron);
    }
    if ($oldversion < 2008040203) {
        // Install a cron job to recalculate user quotas
        $cron = new StdClass();
        $cron->callfunction = 'recalculate_quota';
        $cron->minute = '15';
        $cron->hour = '2';
        $cron->day = '*';
        $cron->month = '*';
        $cron->dayofweek = '*';
        insert_record('cron', $cron);
    }
    if ($oldversion < 2008040204) {
        if (field_exists(new XMLDBTable('usr_friend_request'), new XMLDBField('reason'))) {
            if (is_postgres()) {
                execute_sql('ALTER TABLE {usr_friend_request} RENAME COLUMN reason TO message');
            } else {
                if (is_mysql()) {
                    execute_sql('ALTER TABLE {usr_friend_request} CHANGE reason message TEXT');
                }
            }
        }
    }
    if ($oldversion < 2008080400) {
        // Group type refactor
        log_debug('GROUP TYPE REFACTOR');
        execute_sql('ALTER TABLE {group} ADD grouptype CHARACTER VARYING(20)');
        execute_sql('ALTER TABLE {group_member} ADD role CHARACTER VARYING(255)');
        $groups = get_records_array('group');
        if ($groups) {
            require_once get_config('docroot') . 'grouptype/lib.php';
            require_once get_config('docroot') . 'grouptype/standard/lib.php';
            require_once get_config('docroot') . 'grouptype/course/lib.php';
            foreach ($groups as $group) {
                log_debug("Migrating group {$group->name} ({$group->id})");
                // Establish the new group type
                if ($group->jointype == 'controlled') {
                    $group->grouptype = 'course';
                } else {
                    $group->grouptype = 'standard';
                }
                execute_sql('UPDATE {group} SET grouptype = ? WHERE id = ?', array($group->grouptype, $group->id));
                log_debug(' * new group type is ' . $group->grouptype);
                // Convert group membership information to roles
                foreach (call_static_method('GroupType' . $group->grouptype, 'get_roles') as $role) {
                    if ($role == 'admin') {
                        // It would be nice to use ensure_record_exists here,
                        // but because ctime is not null we have to provide it
                        // as data, which means the ctime would be updated if
                        // the record _did_ exist
                        if (get_record('group_member', 'group', $group->id, 'member', $group->owner)) {
                            execute_sql("UPDATE {group_member}\n                                SET role = 'admin'\n                                WHERE \"group\" = ?\n                                AND member = ?", array($group->id, $group->owner));
                        } else {
                            // In old versions of Mahara, there did not need to
                            // be a record in the group_member table for the
                            // owner
                            $data = (object) array('group' => $group->id, 'member' => $group->owner, 'ctime' => db_format_timestamp(time()), 'role' => 'admin');
                            insert_record('group_member', $data);
                        }
                        log_debug(" * marked user {$group->owner} as having the admin role");
                    } else {
                        // Setting role instances for tutors and members
                        $tutorflag = $role == 'tutor' ? 1 : 0;
                        execute_sql('UPDATE {group_member}
                            SET role = ?
                            WHERE "group" = ?
                            AND member != ?
                            AND tutor = ?', array($role, $group->id, $group->owner, $tutorflag));
                        log_debug(" * marked appropriate users as being {$role}s");
                    }
                }
            }
        }
        if (is_postgres()) {
            execute_sql('ALTER TABLE {group} ALTER grouptype SET NOT NULL');
            execute_sql('ALTER TABLE {group_member} ALTER role SET NOT NULL');
        } else {
            if (is_mysql()) {
                execute_sql('ALTER TABLE {group} MODIFY grouptype CHARACTER VARYING(20) NOT NULL');
                execute_sql('ALTER TABLE {group_member} MODIFY role CHARACTER VARYING(255) NOT NULL');
            }
        }
        if (is_mysql()) {
            execute_sql('ALTER TABLE {group} DROP FOREIGN KEY {grou_own_fk}');
        }
        execute_sql('ALTER TABLE {group} DROP owner');
        execute_sql('ALTER TABLE {group_member} DROP tutor');
        // Adminfiles become "institution-owned artefacts"
        execute_sql("ALTER TABLE {artefact} ADD COLUMN institution CHARACTER VARYING(255);");
        if (is_postgres()) {
            execute_sql("ALTER TABLE {artefact} ALTER COLUMN owner DROP NOT NULL;");
        } else {
            if (is_mysql()) {
                execute_sql("ALTER TABLE {artefact} MODIFY owner BIGINT(10) NULL;");
            }
        }
        execute_sql("ALTER TABLE {artefact} ADD CONSTRAINT {arte_ins_fk} FOREIGN KEY (institution) REFERENCES {institution}(name);");
        execute_sql("UPDATE {artefact} SET institution = 'mahara', owner = NULL WHERE id IN (SELECT artefact FROM {artefact_file_files} WHERE adminfiles = 1)");
        execute_sql("ALTER TABLE {artefact_file_files} DROP COLUMN adminfiles");
        execute_sql('ALTER TABLE {artefact} ADD COLUMN "group" BIGINT');
        execute_sql('ALTER TABLE {artefact} ADD CONSTRAINT {arte_gro_fk} FOREIGN KEY ("group") REFERENCES {group}(id)');
        // New artefact permissions for use with group-owned artefacts
        execute_sql('CREATE TABLE {artefact_access_role} (
            role VARCHAR(255) NOT NULL,
            artefact INTEGER NOT NULL REFERENCES {artefact}(id),
            can_view SMALLINT NOT NULL,
            can_edit SMALLINT NOT NULL,
            can_republish SMALLINT NOT NULL
        )' . $INNODB);
        execute_sql('CREATE TABLE {artefact_access_usr} (
            usr INTEGER NOT NULL REFERENCES {usr}(id),
            artefact INTEGER NOT NULL REFERENCES {artefact}(id),
            can_republish SMALLINT
        )' . $INNODB);
        // grouptype tables
        execute_sql("CREATE TABLE {grouptype} (\n            name VARCHAR(20) PRIMARY KEY,\n            submittableto SMALLINT NOT NULL,\n            defaultrole VARCHAR(255) NOT NULL DEFAULT 'member'\n        )" . $INNODB);
        execute_sql("INSERT INTO {grouptype} (name,submittableto) VALUES ('standard',0)");
        execute_sql("INSERT INTO {grouptype} (name,submittableto) VALUES ('course',1)");
        execute_sql('CREATE TABLE {grouptype_roles} (
            grouptype VARCHAR(20) NOT NULL REFERENCES {grouptype}(name),
            edit_views SMALLINT NOT NULL DEFAULT 1,
            see_submitted_views SMALLINT NOT NULL DEFAULT 0,
            role VARCHAR(255) NOT NULL
        )' . $INNODB);
        execute_sql("INSERT INTO {grouptype_roles} (grouptype,edit_views,see_submitted_views,role) VALUES ('standard',1,0,'admin')");
        execute_sql("INSERT INTO {grouptype_roles} (grouptype,edit_views,see_submitted_views,role) VALUES ('standard',1,0,'member')");
        execute_sql("INSERT INTO {grouptype_roles} (grouptype,edit_views,see_submitted_views,role) VALUES ('course',1,0,'admin')");
        execute_sql("INSERT INTO {grouptype_roles} (grouptype,edit_views,see_submitted_views,role) VALUES ('course',1,1,'tutor')");
        execute_sql("INSERT INTO {grouptype_roles} (grouptype,edit_views,see_submitted_views,role) VALUES ('course',0,0,'member')");
        if (is_postgres()) {
            $table = new XMLDBTable('group');
            $key = new XMLDBKey('grouptypefk');
            $key->setAttributes(XMLDB_KEY_FOREIGN, array('grouptype'), 'grouptype', array('name'));
            add_key($table, $key);
        } else {
            if (is_mysql()) {
                // Seems to refuse to create foreign key, not sure why yet
                execute_sql("ALTER TABLE {group} ADD INDEX {grou_gro_ix} (grouptype);");
                // execute_sql("ALTER TABLE {group} ADD CONSTRAINT {grou_gro_fk} FOREIGN KEY (grouptype) REFERENCES {grouptype} (name);");
            }
        }
        // Group views
        execute_sql('ALTER TABLE {view} ADD COLUMN "group" BIGINT');
        execute_sql('ALTER TABLE {view} ADD CONSTRAINT {view_gro_fk} FOREIGN KEY ("group") REFERENCES {group}(id)');
        if (is_postgres()) {
            execute_sql('ALTER TABLE {view} ALTER COLUMN owner DROP NOT NULL');
            execute_sql('ALTER TABLE {view} ALTER COLUMN ownerformat DROP NOT NULL');
        } else {
            if (is_mysql()) {
                execute_sql('ALTER TABLE {view} MODIFY owner BIGINT(10) NULL');
                execute_sql('ALTER TABLE {view} MODIFY ownerformat TEXT NULL');
            }
        }
        execute_sql('ALTER TABLE {view_access_group} ADD COLUMN role VARCHAR(255)');
        execute_sql("UPDATE {view_access_group} SET role = 'tutor' WHERE tutoronly = 1");
        execute_sql('ALTER TABLE {view_access_group} DROP COLUMN tutoronly');
        // grouptype plugin tables
        $table = new XMLDBTable('grouptype_installed');
        $table->addFieldInfo('name', XMLDB_TYPE_CHAR, 255, null, XMLDB_NOTNULL);
        $table->addFieldInfo('version', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL);
        $table->addFieldInfo('release', XMLDB_TYPE_TEXT, 'small', null, XMLDB_NOTNULL);
        $table->addFieldInfo('active', XMLDB_TYPE_INTEGER, 1, null, XMLDB_NOTNULL, null, null, null, 1);
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('name'));
        create_table($table);
        $table = new XMLDBTable('grouptype_cron');
        $table->addFieldInfo('plugin', XMLDB_TYPE_CHAR, 255, null, XMLDB_NOTNULL);
        $table->addFieldInfo('callfunction', XMLDB_TYPE_CHAR, 255, null, XMLDB_NOTNULL);
        $table->addFieldInfo('minute', XMLDB_TYPE_CHAR, 25, null, XMLDB_NOTNULL, null, null, null, '*');
        $table->addFieldInfo('hour', XMLDB_TYPE_CHAR, 25, null, XMLDB_NOTNULL, null, null, null, '*');
        $table->addFieldInfo('day', XMLDB_TYPE_CHAR, 25, null, XMLDB_NOTNULL, null, null, null, '*');
        $table->addFieldInfo('dayofweek', XMLDB_TYPE_CHAR, 25, null, XMLDB_NOTNULL, null, null, null, '*');
        $table->addFieldInfo('month', XMLDB_TYPE_CHAR, 25, null, XMLDB_NOTNULL, null, null, null, '*');
        $table->addFieldInfo('nextrun', XMLDB_TYPE_DATETIME, null, null);
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('plugin', 'callfunction'));
        $table->addKeyInfo('pluginfk', XMLDB_KEY_FOREIGN, array('plugin'), 'grouptype_installed', array('name'));
        create_table($table);
        $table = new XMLDBTable('grouptype_config');
        $table->addFieldInfo('plugin', XMLDB_TYPE_CHAR, 100, null, XMLDB_NOTNULL);
        $table->addFieldInfo('field', XMLDB_TYPE_CHAR, 100, null, XMLDB_NOTNULL);
        $table->addFieldInfo('value', XMLDB_TYPE_TEXT, 'small', null, XMLDB_NOTNULL);
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('plugin', 'field'));
        $table->addKeyInfo('pluginfk', XMLDB_KEY_FOREIGN, array('plugin'), 'grouptype_installed', array('name'));
        create_table($table);
        $table = new XMLDBTable('grouptype_event_subscription');
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('plugin', XMLDB_TYPE_CHAR, 255, null, XMLDB_NOTNULL);
        $table->addFieldInfo('event', XMLDB_TYPE_CHAR, 50, null, XMLDB_NOTNULL);
        $table->addFieldInfo('callfunction', XMLDB_TYPE_CHAR, 255, null, XMLDB_NOTNULL);
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addKeyInfo('pluginfk', XMLDB_KEY_FOREIGN, array('plugin'), 'grouptype_installed', array('name'));
        $table->addKeyInfo('eventfk', XMLDB_KEY_FOREIGN, array('event'), 'event_type', array('name'));
        $table->addKeyInfo('subscruk', XMLDB_KEY_UNIQUE, array('plugin', 'event', 'callfunction'));
        create_table($table);
        if ($data = check_upgrades('grouptype.standard')) {
            upgrade_plugin($data);
        }
        if ($data = check_upgrades('grouptype.course')) {
            upgrade_plugin($data);
        }
        // Group invitations take a role
        execute_sql('ALTER TABLE {group_member_invite} ADD COLUMN role VARCHAR(255)');
    }
    if ($oldversion < 2008081101) {
        execute_sql("ALTER TABLE {view} ADD COLUMN institution CHARACTER VARYING(255);");
        execute_sql("ALTER TABLE {view} ADD CONSTRAINT {view_ins_fk} FOREIGN KEY (institution) REFERENCES {institution}(name);");
        execute_sql("ALTER TABLE {view} ADD COLUMN template SMALLINT NOT NULL DEFAULT 0;");
    }
    if ($oldversion < 2008081102) {
        execute_sql("ALTER TABLE {view} ADD COLUMN copynewuser SMALLINT NOT NULL DEFAULT 0;");
        execute_sql('CREATE TABLE {view_autocreate_grouptype} (
            view INTEGER NOT NULL REFERENCES {view}(id),
            grouptype VARCHAR(20) NOT NULL REFERENCES {grouptype}(name)
        )' . $INNODB);
    }
    if ($oldversion < 2008090100) {
        $table = new XMLDBTable('import_queue');
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('host', XMLDB_TYPE_CHAR, 255, null, XMLDB_NOTNULL);
        $table->addFieldInfo('usr', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL);
        $table->addFieldInfo('queue', XMLDB_TYPE_INTEGER, 1, null, XMLDB_NOTNULL, null, null, null, '1');
        $table->addFieldInfo('ready', XMLDB_TYPE_INTEGER, 1, null, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('expirytime', XMLDB_TYPE_DATETIME, null, null, XMLDB_NOTNULL);
        $table->addFieldInfo('format', XMLDB_TYPE_CHAR, 50, null, null);
        $table->addFieldInfo('data', XMLDB_TYPE_TEXT, 'large', null, null);
        $table->addFieldInfo('token', XMLDB_TYPE_CHAR, 40, null, XMLDB_NOTNULL);
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addKeyInfo('usrfk', XMLDB_KEY_FOREIGN, array('usr'), 'usr', array('id'));
        $table->addKeyInfo('hostfk', XMLDB_KEY_FOREIGN, array('host'), 'host', array('wwwroot'));
        create_table($table);
        // Install a cron job to process the queue
        $cron = new StdClass();
        $cron->callfunction = 'import_process_queue';
        $cron->minute = '*/5';
        $cron->hour = '*';
        $cron->day = '*';
        $cron->month = '*';
        $cron->dayofweek = '*';
        insert_record('cron', $cron);
    }
    if ($oldversion < 2008090800) {
        $table = new XMLDBTable('artefact_log');
        $table->addFieldInfo('artefact', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL);
        $table->addFieldInfo('usr', XMLDB_TYPE_INTEGER, 10, null, null);
        $table->addFieldInfo('time', XMLDB_TYPE_DATETIME, null, null, XMLDB_NOTNULL);
        $table->addFieldInfo('title', XMLDB_TYPE_TEXT, null);
        $table->addFieldInfo('description', XMLDB_TYPE_TEXT, null);
        $table->addFieldInfo('parent', XMLDB_TYPE_INTEGER, 10, null, null);
        $table->addFieldInfo('created', XMLDB_TYPE_INTEGER, 1, null, null);
        $table->addFieldInfo('deleted', XMLDB_TYPE_INTEGER, 1, null, null);
        $table->addFieldInfo('edited', XMLDB_TYPE_INTEGER, 1, null, null);
        $table->addIndexInfo('artefactix', XMLDB_INDEX_NOTUNIQUE, array('artefact'));
        $table->addKeyInfo('usrfk', XMLDB_KEY_FOREIGN, array('usr'), 'usr', array('id'));
        create_table($table);
    }
    if ($oldversion < 2008091500) {
        // NOTE: Yes, this number is bigger than the number for the next upgrade
        // The next upgrade got committed first. It deletes all users properly,
        // but the usr table has a 30 character limit on username, which can be
        // violated when people with long usernames are deleted
        $table = new XMLDBTable('usr');
        $field = new XMLDBField('username');
        $field->setAttributes(XMLDB_TYPE_CHAR, 100, null, XMLDB_NOTNULL);
        change_field_precision($table, $field);
    }
    if ($oldversion < 2008091200) {
        // Some cleanups for deleted users, based on the new model of handling them
        if ($userids = get_column('usr', 'id', 'deleted', 1)) {
            foreach ($userids as $userid) {
                // We want to append 'deleted.timestamp' to some unique fields in the usr
                // table, so they can be reused by new accounts
                $fieldstomunge = array('username', 'email');
                $datasuffix = '.deleted.' . time();
                $user = get_record('usr', 'id', $userid, null, null, null, null, implode(', ', $fieldstomunge));
                $deleterec = new StdClass();
                $deleterec->id = $userid;
                $deleterec->deleted = 1;
                foreach ($fieldstomunge as $field) {
                    if (!preg_match('/\\.deleted\\.\\d+$/', $user->{$field})) {
                        $deleterec->{$field} = $user->{$field} . $datasuffix;
                    }
                }
                // Set authinstance to default internal, otherwise the old authinstance can be blocked from deletion
                // by deleted users.
                $authinst = get_field('auth_instance', 'id', 'institution', 'mahara', 'instancename', 'internal');
                if ($authinst) {
                    $deleterec->authinstance = $deleterec->lastauthinstance = $authinst;
                }
                update_record('usr', $deleterec);
                // Because the user is being deleted, but their email address may be wanted
                // for a new user, we change their email addresses to add
                // 'deleted.[timestamp]'
                execute_sql("UPDATE {artefact_internal_profile_email}\n                             SET email = email || ?\n                             WHERE owner = ? AND NOT email LIKE '%.deleted.%'", array($datasuffix, $userid));
                // Remove remote user records
                delete_records('auth_remote_user', 'localusr', $userid);
            }
        }
    }
    if ($oldversion < 2008091601) {
        $table = new XMLDBTable('event_subscription');
        if (!table_exists($table)) {
            $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, 10, XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
            $table->addFieldInfo('event', XMLDB_TYPE_CHAR, 50, XMLDB_UNSIGNED, XMLDB_NOTNULL);
            $table->addFieldInfo('callfunction', XMLDB_TYPE_CHAR, 255, XMLDB_UNSIGNED, XMLDB_NOTNULL);
            $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
            $table->addKeyInfo('eventfk', XMLDB_KEY_FOREIGN, array('event'), 'event_type', array('name'));
            $table->addKeyInfo('subscruk', XMLDB_KEY_UNIQUE, array('event', 'callfunction'));
            create_table($table);
            insert_record('event_subscription', (object) array('event' => 'createuser', 'callfunction' => 'activity_set_defaults'));
            $table = new XMLDBTable('view_type');
            $table->addFieldInfo('type', XMLDB_TYPE_CHAR, 50, XMLDB_UNSIGNED, XMLDB_NOTNULL);
            $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('type'));
            create_table($table);
            $viewtypes = array('portfolio', 'profile');
            foreach ($viewtypes as $vt) {
                insert_record('view_type', (object) array('type' => $vt));
            }
            $table = new XMLDBTable('blocktype_installed_viewtype');
            $table->addFieldInfo('blocktype', XMLDB_TYPE_CHAR, 50, XMLDB_UNSIGNED, XMLDB_NOTNULL);
            $table->addFieldInfo('viewtype', XMLDB_TYPE_CHAR, 50, XMLDB_UNSIGNED, XMLDB_NOTNULL);
            $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('blocktype', 'viewtype'));
            $table->addKeyInfo('blocktypefk', XMLDB_KEY_FOREIGN, array('blocktype'), 'blocktype_installed', array('name'));
            $table->addKeyInfo('viewtypefk', XMLDB_KEY_FOREIGN, array('viewtype'), 'view_type', array('type'));
            create_table($table);
            $table = new XMLDBTable('view');
            $field = new XMLDBField('type');
            $field->setAttributes(XMLDB_TYPE_CHAR, 50, XMLDB_UNSIGNED, null);
            add_field($table, $field);
            $key = new XMLDBKey('typefk');
            $key->setAttributes(XMLDB_KEY_FOREIGN, array('type'), 'view_type', array('type'));
            add_key($table, $key);
            set_field('view', 'type', 'portfolio');
            $field->setAttributes(XMLDB_TYPE_CHAR, 50, XMLDB_UNSIGNED, XMLDB_NOTNULL);
            change_field_notnull($table, $field);
            if ($blocktypes = plugins_installed('blocktype', true)) {
                foreach ($blocktypes as $bt) {
                    install_blocktype_viewtypes_for_plugin(blocktype_single_to_namespaced($bt->name, $bt->artefactplugin));
                }
            }
        }
    }
    if ($oldversion < 2008091603) {
        foreach (array('myviews', 'mygroups', 'myfriends', 'wall') as $blocktype) {
            $data = check_upgrades("blocktype.{$blocktype}");
            if ($data) {
                upgrade_plugin($data);
            }
        }
        if (!get_record('view', 'owner', 0, 'type', 'profile')) {
            // First ensure system user has id = 0; In older MySQL installations it may be > 0
            $sysuser = get_record('usr', 'username', 'root');
            if ($sysuser && $sysuser->id > 0 && !count_records('usr', 'id', 0)) {
                set_field('usr', 'id', 0, 'id', $sysuser->id);
            }
            // Install system profile view
            require_once get_config('libroot') . 'view.php';
            $dbtime = db_format_timestamp(time());
            $viewdata = (object) array('type' => 'profile', 'owner' => 0, 'numcolumns' => 2, 'ownerformat' => FORMAT_NAME_PREFERREDNAME, 'title' => get_string('profileviewtitle', 'view'), 'description' => '', 'template' => 1, 'ctime' => $dbtime, 'atime' => $dbtime, 'mtime' => $dbtime);
            $id = insert_record('view', $viewdata, 'id', true);
            $accessdata = (object) array('view' => $id, 'accesstype' => 'loggedin');
            insert_record('view_access', $accessdata);
            $blocktypes = array('myviews' => 1, 'mygroups' => 1, 'myfriends' => 2, 'wall' => 2);
            // column ids
            $installed = get_column_sql('SELECT name FROM {blocktype_installed} WHERE name IN (' . join(',', array_map('db_quote', array_keys($blocktypes))) . ')');
            $weights = array(1 => 0, 2 => 0);
            foreach (array_keys($blocktypes) as $blocktype) {
                if (in_array($blocktype, $installed)) {
                    $weights[$blocktypes[$blocktype]]++;
                    insert_record('block_instance', (object) array('blocktype' => $blocktype, 'title' => get_string('title', 'blocktype.' . $blocktype), 'view' => $id, 'column' => $blocktypes[$blocktype], 'order' => $weights[$blocktypes[$blocktype]]));
                }
            }
        }
    }
    if ($oldversion < 2008091604) {
        $table = new XMLDBTable('usr');
        $field = new XMLDBField('lastlastlogin');
        $field->setAttributes(XMLDB_TYPE_DATETIME, null, null);
        add_field($table, $field);
    }
    if ($oldversion < 2008092000) {
        $table = new XMLDBTable('usr');
        $field = new XMLDBField('lastaccess');
        $field->setAttributes(XMLDB_TYPE_DATETIME, null, null);
        add_field($table, $field);
    }
    // The previous upgrade forces the user to be logged out.  The
    // next upgrade should probably set disablelogin = false and
    // minupgradefrom = 2008092000 in version.php.
    if ($oldversion < 2008101500) {
        // Remove event subscription for new user accounts to have a default
        // profile view created, they're now created on demand
        execute_sql("DELETE FROM {event_subscription} WHERE event = 'createuser' AND callfunction = 'install_default_profile_view';");
    }
    if ($oldversion < 2008101602) {
        $artefactdata = get_config('dataroot') . 'artefact/';
        if (is_dir($artefactdata . 'file/profileicons')) {
            throw new SystemException("Upgrade 2008101602: {$artefactdata}/file/profileicons already exists!");
        }
        // Move artefact/internal/profileicons directory to artefact/file
        set_field('artefact_installed_type', 'plugin', 'file', 'name', 'profileicon');
        set_field('artefact_config', 'plugin', 'file', 'field', 'profileiconwidth');
        set_field('artefact_config', 'plugin', 'file', 'field', 'profileiconheight');
        if (is_dir($artefactdata . 'internal/profileicons')) {
            if (!is_dir($artefactdata . 'file')) {
                mkdir($artefactdata . 'file');
            }
            if (!rename($artefactdata . 'internal/profileicons', $artefactdata . 'file/profileicons')) {
                throw new SystemException("Failed moving {$artefactdata}/internal/profileicons to {$artefactdata}/file/profileicons");
            }
            // Insert artefact_file_files records for all profileicons
            $profileicons = get_column('artefact', 'id', 'artefacttype', 'profileicon');
            if ($profileicons) {
                foreach ($profileicons as $a) {
                    $filename = $artefactdata . 'file/profileicons/originals/' . $a % 256 . '/' . $a;
                    if (file_exists($filename)) {
                        $filesize = filesize($filename);
                        $imagesize = getimagesize($artefactdata . 'file/profileicons/originals/' . $a % 256 . '/' . $a);
                        insert_record('artefact_file_files', (object) array('artefact' => $a, 'fileid' => $a, 'size' => $filesize));
                        insert_record('artefact_file_image', (object) array('artefact' => $a, 'width' => $imagesize[0], 'height' => $imagesize[1]));
                    } else {
                        log_debug("Profile icon artefact {$a} has no file on disk at {$filename}");
                    }
                }
            }
        }
    }
    if ($oldversion < 2008102200) {
        $table = new XMLDBTable('view_access_token');
        $table->addFieldInfo('view', XMLDB_TYPE_INTEGER, 10, false, XMLDB_NOTNULL);
        $table->addFieldInfo('token', XMLDB_TYPE_CHAR, 100, XMLDB_UNSIGNED, XMLDB_NOTNULL);
        $table->addFieldInfo('startdate', XMLDB_TYPE_DATETIME, null, null);
        $table->addFieldInfo('stopdate', XMLDB_TYPE_DATETIME, null, null);
        $table->addKeyInfo('viewfk', XMLDB_KEY_FOREIGN, array('view'), 'view', array('id'));
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('token'));
        create_table($table);
    }
    if ($oldversion < 2008102400) {
        // Feedback can be left by anon users with a view token, so feedback author must be nullable
        $table = new XMLDBTable('view_feedback');
        if (is_mysql()) {
            execute_sql("ALTER TABLE {view_feedback} DROP FOREIGN KEY {viewfeed_aut_fk}");
            execute_sql('ALTER TABLE {view_feedback} MODIFY author BIGINT(10) NULL');
        } else {
            $field = new XMLDBField('author');
            $field->setAttributes(XMLDB_TYPE_INTEGER, 10, XMLDB_UNSIGNED);
            change_field_notnull($table, $field);
        }
        $key = new XMLDBKEY('authorfk');
        $key->setAttributes(XMLDB_KEY_FOREIGN, array('author'), 'usr', array('id'));
        add_key($table, $key);
        $table = new XMLDBTable('artefact_feedback');
        if (is_mysql()) {
            execute_sql("ALTER TABLE {artefact_feedback} DROP FOREIGN KEY {artefeed_aut_fk}");
            execute_sql('ALTER TABLE {artefact_feedback} MODIFY author BIGINT(10) NULL');
        } else {
            $field = new XMLDBField('author');
            $field->setAttributes(XMLDB_TYPE_INTEGER, 10, XMLDB_UNSIGNED);
            change_field_notnull($table, $field);
        }
        $key = new XMLDBKEY('authorfk');
        $key->setAttributes(XMLDB_KEY_FOREIGN, array('author'), 'usr', array('id'));
        add_key($table, $key);
        table_column('view_feedback', null, 'authorname', 'text', null, null, null, '');
        table_column('artefact_feedback', null, 'authorname', 'text', null, null, null, '');
    }
    if ($oldversion < 2008110700) {
        $table = new XMLDBTable('group');
        $field = new XMLDBField('public');
        $field->setAttributes(XMLDB_TYPE_INTEGER, 1, null, XMLDB_NOTNULL, null, null, null, 0);
        add_field($table, $field);
        set_config('createpublicgroups', 'admins');
    }
    if ($oldversion < 2008111102) {
        set_field('grouptype_roles', 'see_submitted_views', 1, 'grouptype', 'course', 'role', 'admin');
    }
    if ($oldversion < 2008111200) {
        // Event subscription for auto adding users to groups
        insert_record('event_subscription', (object) array('event' => 'createuser', 'callfunction' => 'add_user_to_autoadd_groups'));
        $table = new XMLDBTable('group');
        $field = new XMLDBField('usersautoadded');
        $field->setAttributes(XMLDB_TYPE_INTEGER, 1, null, XMLDB_NOTNULL, null, null, null, 0);
        add_field($table, $field);
    }
    if ($oldversion < 2008111201) {
        $event = (object) array('name' => 'userjoinsgroup');
        ensure_record_exists('event_type', $event, $event);
    }
    if ($oldversion < 2008110400) {
        // Correct capitalisation of internal authinstance for 'no institution', only if it hasn't changed previously
        execute_sql("UPDATE {auth_instance} SET instancename = 'Internal' WHERE institution = 'mahara' AND authname = 'internal' AND instancename = 'internal'");
    }
    if ($oldversion < 2008121500) {
        // Make sure the system profile view is marked as a template and is
        // allowed to be copied by everyone
        require_once 'view.php';
        execute_sql("UPDATE {view} SET template = 1 WHERE owner = 0 AND type = 'profile'");
        $viewid = get_field('view', 'id', 'owner', 0, 'type', 'profile');
        delete_records('view_access', 'view', $viewid);
        insert_record('view_access', (object) array('view' => $viewid, 'accesstype' => 'loggedin'));
    }
    if ($oldversion < 2008122300) {
        // Delete all activity_queue entries older than 2 weeks. Designed to
        // prevent total spammage caused by the activity queue processing bug
        delete_records_select('activity_queue', 'ctime < ?', array(db_format_timestamp(time() - 86400 * 14)));
    }
    if ($oldversion < 2009011500) {
        // Make the "port" column larger so it can handle any port number
        $table = new XMLDBTable('host');
        $field = new XMLDBField('portno');
        $field->setAttributes(XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL, null, null, null, 80);
        change_field_precision($table, $field);
    }
    if ($oldversion < 2009021600) {
        // Add constraints on view and artefact tables to make sure that of the
        // owner/group/institution fields, only one is set at any given time
        // First, we make blind assumptions in order to tweak the data into
        // being valid. In theory, there shouldn't be much danger because most
        // people will upgrade from 1.0 to 1.1, and thus never have invalid
        // data in their tables.
        execute_sql('UPDATE {artefact} SET owner = NULL WHERE institution IS NOT NULL');
        execute_sql('UPDATE {artefact} SET "group" = NULL WHERE institution IS NOT NULL');
        execute_sql('UPDATE {artefact} SET owner = NULL WHERE "group" IS NOT NULL');
        execute_sql('UPDATE {view} SET owner = NULL WHERE institution IS NOT NULL');
        execute_sql('UPDATE {view} SET "group" = NULL WHERE institution IS NOT NULL');
        execute_sql('UPDATE {view} SET owner = NULL WHERE "group" IS NOT NULL');
        // Now add the constraints. MySQL parses check constraints but doesn't
        // actually apply them. So these protections will only apply if you use
        // Postgres. You did read the installation instruction's
        // recommendations that you use postgres, didn't you?
        execute_sql('ALTER TABLE {artefact} ADD CHECK (
            (owner IS NOT NULL AND "group" IS NULL     AND institution IS NULL) OR
            (owner IS NULL     AND "group" IS NOT NULL AND institution IS NULL) OR
            (owner IS NULL     AND "group" IS NULL     AND institution IS NOT NULL)
        )');
        execute_sql('ALTER TABLE {view} ADD CHECK (
            (owner IS NOT NULL AND "group" IS NULL     AND institution IS NULL) OR
            (owner IS NULL     AND "group" IS NOT NULL AND institution IS NULL) OR
            (owner IS NULL     AND "group" IS NULL     AND institution IS NOT NULL)
        )');
    }
    if ($oldversion < 2009021700) {
        try {
            include_once 'xmlize.php';
            $newlist = xmlize(file_get_contents(get_config('libroot') . 'htmlpurifiercustom/filters.xml'));
            $filters = $newlist['filters']['#']['filter'];
            foreach ($filters as &$f) {
                $f = (object) array('site' => $f['#']['site'][0]['#'], 'file' => $f['#']['filename'][0]['#']);
            }
            $filters[] = (object) array('site' => 'http://www.youtube.com', 'file' => 'YouTube');
            set_config('filters', serialize($filters));
        } catch (Exception $e) {
            log_debug('Upgrade 2009021700: failed to load html filters');
        }
    }
    if ($oldversion < 2009021701) {
        // Make sure that all views that can be copied have loggedin access
        // This upgrade just fixes potentially corrupt data caused by running a
        // beta version then upgrading it
        if ($views = get_column('view', 'id', 'copynewuser', '1')) {
            $views[] = 1;
            foreach ($views as $viewid) {
                if (!record_exists('view_access', 'view', $viewid, 'accesstype', 'loggedin')) {
                    // We're not checking that access dates are null (aka
                    // it can always be accessed), but the chance of people
                    // needing this upgrade are slim anyway
                    insert_record('view_access', (object) array('view' => $viewid, 'accesstype' => 'loggedin', 'startdate' => null, 'stopdate' => null));
                }
            }
        }
    }
    if ($oldversion < 2009021900) {
        // Generate a unique installation key
        set_config('installation_key', get_random_key());
    }
    if ($oldversion < 2009021901) {
        // Insert a cron job to send registration data to mahara.org
        $cron = new StdClass();
        $cron->callfunction = 'cron_send_registration_data';
        $cron->minute = rand(0, 59);
        $cron->hour = rand(0, 23);
        $cron->day = '*';
        $cron->month = '*';
        $cron->dayofweek = rand(0, 6);
        insert_record('cron', $cron);
    }
    if ($oldversion < 2009022700) {
        // Get rid of all blocks with position 0 caused by 'about me' block on profile views
        if (count_records('block_instance', 'order', 0) && !count_records_select('block_instance', '"order" < 0')) {
            if (is_mysql()) {
                $ids = get_column_sql('
                    SELECT i.id FROM {block_instance} i
                    INNER JOIN (SELECT view, "column" FROM {block_instance} WHERE "order" = 0) z
                        ON (z.view = i.view AND z.column = i.column)');
                execute_sql('UPDATE {block_instance} SET "order" =  -1 * "order" WHERE id IN (' . join(',', $ids) . ')');
            } else {
                execute_sql('UPDATE {block_instance} SET "order" =  -1 * "order" WHERE id IN (
                    SELECT i.id FROM {block_instance} i
                    INNER JOIN (SELECT view, "column" FROM {block_instance} WHERE "order" = 0) z
                        ON (z.view = i.view AND z.column = i.column))');
            }
            execute_sql('UPDATE {block_instance} SET "order" = 1 WHERE "order" = 0');
            execute_sql('UPDATE {block_instance} SET "order" = -1 * ("order" - 1) WHERE "order" < 0');
        }
    }
    if ($oldversion < 2009031000) {
        reload_html_filters();
    }
    if ($oldversion < 2009031300) {
        $table = new XMLDBTable('institution');
        $expiry = new XMLDBField('expiry');
        $expiry->setAttributes(XMLDB_TYPE_DATETIME);
        add_field($table, $expiry);
        $expirymailsent = new XMLDBField('expirymailsent');
        $expirymailsent->setAttributes(XMLDB_TYPE_INTEGER, 1, null, XMLDB_NOTNULL, null, null, null, 0);
        add_field($table, $expirymailsent);
        $suspended = new XMLDBField('suspended');
        $suspended->setAttributes(XMLDB_TYPE_INTEGER, 1, null, XMLDB_NOTNULL, null, null, null, 0);
        add_field($table, $suspended);
        // Insert a cron job to check for soon expiring and expired institutions
        if (!record_exists('cron', 'callfunction', 'auth_handle_institution_expiries')) {
            $cron = new StdClass();
            $cron->callfunction = 'auth_handle_institution_expiries';
            $cron->minute = '5';
            $cron->hour = '9';
            $cron->day = '*';
            $cron->month = '*';
            $cron->dayofweek = '*';
            insert_record('cron', $cron);
        }
    }
    if ($oldversion < 2009031800) {
        // Files can only attach blogpost artefacts, but we would like to be able to attach them
        // to other stuff.  Rename the existing attachment table artefact_blog_blogpost_file to
        // artefact_file_attachment so we don't end up with many tables doing the same thing.
        execute_sql("ALTER TABLE {artefact_blog_blogpost_file} RENAME TO {artefact_attachment}");
        if (is_postgres()) {
            // Ensure all of the indexes and constraints are renamed
            execute_sql("\n            ALTER TABLE {artefact_attachment} RENAME blogpost TO artefact;\n            ALTER TABLE {artefact_attachment} RENAME file TO attachment;\n\n            ALTER INDEX {arteblogblogfile_blofil_pk} RENAME TO {arteatta_artatt_pk};\n            ALTER INDEX {arteblogblogfile_blo_ix} RENAME TO {arteatta_art_ix};\n            ALTER INDEX {arteblogblogfile_fil_ix} RENAME TO {arteatta_att_ix};\n\n            ALTER TABLE {artefact_attachment} DROP CONSTRAINT {arteblogblogfile_blo_fk};\n            ALTER TABLE {artefact_attachment} ADD CONSTRAINT {arteatta_art_fk} FOREIGN KEY (artefact) REFERENCES {artefact}(id);\n\n            ALTER TABLE {artefact_attachment} DROP CONSTRAINT {arteblogblogfile_fil_fk};\n            ALTER TABLE {artefact_attachment} ADD CONSTRAINT {arteatta_att_fk} FOREIGN KEY (attachment) REFERENCES {artefact}(id);\n            ");
        } else {
            if (is_mysql()) {
                execute_sql("ALTER TABLE {artefact_attachment} DROP FOREIGN KEY {arteblogblogfile_blo_fk}");
                execute_sql("ALTER TABLE {artefact_attachment} DROP INDEX {arteblogblogfile_blo_ix}");
                execute_sql("ALTER TABLE {artefact_attachment} CHANGE blogpost artefact BIGINT(10) DEFAULT NULL");
                execute_sql("ALTER TABLE {artefact_attachment} ADD CONSTRAINT {arteatta_art_fk} FOREIGN KEY {arteatta_art_ix} (artefact) REFERENCES {artefact}(id)");
                execute_sql("ALTER TABLE {artefact_attachment} DROP FOREIGN KEY {arteblogblogfile_fil_fk}");
                execute_sql("ALTER TABLE {artefact_attachment} DROP INDEX {arteblogblogfile_fil_ix}");
                execute_sql("ALTER TABLE {artefact_attachment} CHANGE file attachment BIGINT(10) DEFAULT NULL");
                execute_sql("ALTER TABLE {artefact_attachment} ADD CONSTRAINT {arteatta_att_fk} FOREIGN KEY {arteatta_att_ix} (attachment) REFERENCES {artefact}(id)");
            }
        }
        // Drop the _pending table. From now on files uploaded as attachments will become artefacts
        // straight away.  Hopefully changes to the upload/file browser form will make it clear to
        // the user that these attachments sit in his/her files area as soon as they are uploaded.
        $table = new XMLDBTable('artefact_blog_blogpost_file_pending');
        drop_table($table);
    }
    if ($oldversion < 2009040900) {
        // The view access page has been putting the string 'null' in as a group role in IE.
        set_field('view_access_group', 'role', null, 'role', 'null');
    }
    if ($oldversion < 2009040901) {
        $table = new XMLDBTable('import_installed');
        $table->addFieldInfo('name', XMLDB_TYPE_CHAR, 255, XMLDB_UNSIGNED, XMLDB_NOTNULL);
        $table->addFieldInfo('version', XMLDB_TYPE_INTEGER, 10, XMLDB_UNSIGNED, XMLDB_NOTNULL);
        $table->addFieldInfo('release', XMLDB_TYPE_TEXT, 'small', XMLDB_UNSIGNED, XMLDB_NOTNULL);
        $table->addFieldInfo('active', XMLDB_TYPE_INTEGER, 1, XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, 1);
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('name'));
        create_table($table);
        $table = new XMLDBTable('import_cron');
        $table->addFieldInfo('plugin', XMLDB_TYPE_CHAR, 255, XMLDB_UNSIGNED, XMLDB_NOTNULL);
        $table->addFieldInfo('callfunction', XMLDB_TYPE_CHAR, 255, XMLDB_UNSIGNED, XMLDB_NOTNULL);
        $table->addFieldInfo('minute', XMLDB_TYPE_CHAR, 25, XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '*');
        $table->addFieldInfo('hour', XMLDB_TYPE_CHAR, 25, XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '*');
        $table->addFieldInfo('day', XMLDB_TYPE_CHAR, 25, XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '*');
        $table->addFieldInfo('dayofweek', XMLDB_TYPE_CHAR, 25, XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '*');
        $table->addFieldInfo('month', XMLDB_TYPE_CHAR, 25, XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '*');
        $table->addFieldInfo('nextrun', XMLDB_TYPE_DATETIME, null, null);
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('plugin', 'callfunction'));
        $table->addKeyInfo('pluginfk', XMLDB_KEY_FOREIGN, array('plugin'), 'import_installed', array('name'));
        create_table($table);
        $table = new XMLDBTable('import_config');
        $table->addFieldInfo('plugin', XMLDB_TYPE_CHAR, 100, XMLDB_UNSIGNED, XMLDB_NOTNULL);
        $table->addFieldInfo('field', XMLDB_TYPE_CHAR, 100, XMLDB_UNSIGNED, XMLDB_NOTNULL);
        $table->addFieldInfo('value', XMLDB_TYPE_TEXT, 'small', XMLDB_UNSIGNED, XMLDB_NOTNULL);
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('plugin', 'field'));
        $table->addKeyInfo('pluginfk', XMLDB_KEY_FOREIGN, array('plugin'), 'import_installed', array('name'));
        create_table($table);
        $table = new XMLDBTable('import_event_subscription');
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, 10, XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('plugin', XMLDB_TYPE_CHAR, 255, XMLDB_UNSIGNED, XMLDB_NOTNULL);
        $table->addFieldInfo('event', XMLDB_TYPE_CHAR, 50, XMLDB_UNSIGNED, XMLDB_NOTNULL);
        $table->addFieldInfo('callfunction', XMLDB_TYPE_CHAR, 255, XMLDB_UNSIGNED, XMLDB_NOTNULL);
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addKeyInfo('pluginfk', XMLDB_KEY_FOREIGN, array('plugin'), 'import_installed', array('name'));
        $table->addKeyInfo('eventfk', XMLDB_KEY_FOREIGN, array('event'), 'event_type', array('name'));
        $table->addKeyInfo('subscruk', XMLDB_KEY_UNIQUE, array('plugin', 'event', 'callfunction'));
        create_table($table);
        $table = new XMLDBTable('export_installed');
        $table->addFieldInfo('name', XMLDB_TYPE_CHAR, 255, XMLDB_UNSIGNED, XMLDB_NOTNULL);
        $table->addFieldInfo('version', XMLDB_TYPE_INTEGER, 10, XMLDB_UNSIGNED, XMLDB_NOTNULL);
        $table->addFieldInfo('release', XMLDB_TYPE_TEXT, 'small', XMLDB_UNSIGNED, XMLDB_NOTNULL);
        $table->addFieldInfo('active', XMLDB_TYPE_INTEGER, 1, XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, 1);
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('name'));
        create_table($table);
        $table = new XMLDBTable('export_cron');
        $table->addFieldInfo('plugin', XMLDB_TYPE_CHAR, 255, XMLDB_UNSIGNED, XMLDB_NOTNULL);
        $table->addFieldInfo('callfunction', XMLDB_TYPE_CHAR, 255, XMLDB_UNSIGNED, XMLDB_NOTNULL);
        $table->addFieldInfo('minute', XMLDB_TYPE_CHAR, 25, XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '*');
        $table->addFieldInfo('hour', XMLDB_TYPE_CHAR, 25, XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '*');
        $table->addFieldInfo('day', XMLDB_TYPE_CHAR, 25, XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '*');
        $table->addFieldInfo('dayofweek', XMLDB_TYPE_CHAR, 25, XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '*');
        $table->addFieldInfo('month', XMLDB_TYPE_CHAR, 25, XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '*');
        $table->addFieldInfo('nextrun', XMLDB_TYPE_DATETIME, null, null);
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('plugin', 'callfunction'));
        $table->addKeyInfo('pluginfk', XMLDB_KEY_FOREIGN, array('plugin'), 'export_installed', array('name'));
        create_table($table);
        $table = new XMLDBTable('export_config');
        $table->addFieldInfo('plugin', XMLDB_TYPE_CHAR, 100, XMLDB_UNSIGNED, XMLDB_NOTNULL);
        $table->addFieldInfo('field', XMLDB_TYPE_CHAR, 100, XMLDB_UNSIGNED, XMLDB_NOTNULL);
        $table->addFieldInfo('value', XMLDB_TYPE_TEXT, 'small', XMLDB_UNSIGNED, XMLDB_NOTNULL);
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('plugin', 'field'));
        $table->addKeyInfo('pluginfk', XMLDB_KEY_FOREIGN, array('plugin'), 'export_installed', array('name'));
        create_table($table);
        $table = new XMLDBTable('export_event_subscription');
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, 10, XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('plugin', XMLDB_TYPE_CHAR, 255, XMLDB_UNSIGNED, XMLDB_NOTNULL);
        $table->addFieldInfo('event', XMLDB_TYPE_CHAR, 50, XMLDB_UNSIGNED, XMLDB_NOTNULL);
        $table->addFieldInfo('callfunction', XMLDB_TYPE_CHAR, 255, XMLDB_UNSIGNED, XMLDB_NOTNULL);
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addKeyInfo('pluginfk', XMLDB_KEY_FOREIGN, array('plugin'), 'export_installed', array('name'));
        $table->addKeyInfo('eventfk', XMLDB_KEY_FOREIGN, array('event'), 'event_type', array('name'));
        $table->addKeyInfo('subscruk', XMLDB_KEY_UNIQUE, array('plugin', 'event', 'callfunction'));
        create_table($table);
    }
    if ($oldversion < 2009050700) {
        if ($data = check_upgrades('export.html')) {
            upgrade_plugin($data);
        }
        if ($data = check_upgrades('export.leap')) {
            upgrade_plugin($data);
        }
        if ($data = check_upgrades('import.leap')) {
            upgrade_plugin($data);
        }
    }
    if ($oldversion < 2009051200) {
        // Rename submittedto column to submittedgroup
        if (is_postgres()) {
            execute_sql("ALTER TABLE {view} RENAME submittedto TO submittedgroup");
        } else {
            if (is_mysql()) {
                execute_sql("ALTER TABLE {view} DROP FOREIGN KEY {view_sub_fk}");
                execute_sql("ALTER TABLE {view} DROP INDEX {view_sub_ix}");
                execute_sql("ALTER TABLE {view} CHANGE submittedto submittedgroup BIGINT(10) DEFAULT NULL");
                execute_sql("ALTER TABLE {view} ADD CONSTRAINT {view_sub_fk} FOREIGN KEY {view_sub_ix} (submittedgroup) REFERENCES {group}(id)");
            }
        }
        // Add submittedhost column for views submitted to remote moodle hosts
        $table = new XMLDBTable('view');
        $field = new XMLDBField('submittedhost');
        $field->setAttributes(XMLDB_TYPE_CHAR, 255, XMLDB_UNSIGNED, null);
        add_field($table, $field);
        // Do this manually because xmldb tries to create a key with the same name (view_sub_vk) as an existing one, and fails.
        if (is_postgres()) {
            execute_sql("ALTER TABLE {view} ADD CONSTRAINT {view_subh_fk} FOREIGN KEY (submittedhost) REFERENCES {host}(wwwroot)");
            execute_sql("CREATE INDEX {view_subh_ix} ON {view} (submittedhost)");
        } else {
            if (is_mysql()) {
                execute_sql("ALTER TABLE {view} ADD CONSTRAINT {view_subh_fk} FOREIGN KEY {view_subh_ix} (submittedhost) REFERENCES {host}(wwwroot)");
            }
        }
    }
    if ($oldversion < 2009051201) {
        // Invisible view access keys for roaming moodle teachers
        $table = new XMLDBTable('view_access_token');
        $field = new XMLDBField('visible');
        $field->setAttributes(XMLDB_TYPE_INTEGER, 1, null, XMLDB_NOTNULL, null, null, null, 1);
        add_field($table, $field);
    }
    if ($oldversion < 2009052700) {
        // Install a cron job to clean out old exports
        $cron = new StdClass();
        $cron->callfunction = 'export_cleanup_old_exports';
        $cron->minute = '0';
        $cron->hour = '3,13';
        $cron->day = '*';
        $cron->month = '*';
        $cron->dayofweek = '*';
        insert_record('cron', $cron);
    }
    if ($oldversion < 2009070600) {
        // This was forgotten as part of the 1.0 -> 1.1 upgrade
        if ($data = check_upgrades('blocktype.file/html')) {
            upgrade_plugin($data);
        }
    }
    if ($oldversion < 2009070700) {
        foreach (array('addfriend', 'removefriend', 'addfriendrequest', 'removefriendrequest') as $eventtype) {
            $event = (object) array('name' => $eventtype);
            ensure_record_exists('event_type', $event, $event);
        }
    }
    if ($oldversion < 2009070900) {
        if (is_mysql()) {
            execute_sql("ALTER TABLE {usr} DROP FOREIGN KEY {usr_las_fk}");
            execute_sql("ALTER TABLE {usr} DROP INDEX {usr_las_ix}");
        }
        $table = new XMLDBTable('usr');
        $field = new XMLDBField('lastauthinstance');
        drop_field($table, $field);
    }
    if ($oldversion < 2009080600) {
        $table = new XMLDBTable('view');
        $index = new XMLDBIndex('view_own_type_uix');
        $index->setAttributes(XMLDB_INDEX_UNIQUE, array('owner'));
        if (!index_exists($table, $index)) {
            // Delete duplicate profile views if there are any, then add an index
            // that will prevent it happening again - but only on postgres, as it's
            // the only db that supports partial indexes
            if ($viewdata = get_records_sql_array("\n                SELECT owner, id\n                FROM {view}\n                WHERE owner IN (\n                    SELECT owner\n                    FROM {view}\n                    WHERE type = 'profile'\n                    GROUP BY owner\n                    HAVING COUNT(*) > 1\n                )\n                AND type = 'profile'\n                ORDER BY owner, id", array())) {
                require_once 'view.php';
                $seen = array();
                foreach ($viewdata as $record) {
                    $seen[$record->owner][] = $record->id;
                }
                foreach ($seen as $owner => $views) {
                    // Remove the first one, which is their real profile view
                    array_shift($views);
                    foreach ($views as $viewid) {
                        delete_records('artefact_feedback', 'view', $viewid);
                        delete_records('view_feedback', 'view', $viewid);
                        delete_records('view_access', 'view', $viewid);
                        delete_records('view_access_group', 'view', $viewid);
                        delete_records('view_access_usr', 'view', $viewid);
                        delete_records('view_access_token', 'view', $viewid);
                        delete_records('view_autocreate_grouptype', 'view', $viewid);
                        delete_records('view_tag', 'view', $viewid);
                        delete_records('usr_watchlist_view', 'view', $viewid);
                        if ($blockinstanceids = get_column('block_instance', 'id', 'view', $viewid)) {
                            foreach ($blockinstanceids as $id) {
                                if (table_exists('blocktype_wall_post')) {
                                    delete_records('blocktype_wall_post', 'instance', $id);
                                }
                                delete_records('view_artefact', 'block', $id);
                                delete_records('block_instance', 'id', $id);
                            }
                        }
                        delete_records('view', 'id', $viewid);
                    }
                }
            }
            if (is_postgres()) {
                execute_sql("CREATE UNIQUE INDEX {view_own_type_uix} ON {view}(owner) WHERE type = 'profile'");
            }
        }
    }
    if ($oldversion < 2009080601) {
        execute_sql("DELETE FROM {group_member_invite} WHERE \"group\" NOT IN (SELECT id FROM {group} WHERE jointype = 'invite')");
        execute_sql("DELETE FROM {group_member_request} WHERE \"group\" NOT IN (SELECT id FROM {group} WHERE jointype = 'request')");
    }
    if ($oldversion < 2009081800) {
        $event = (object) array('name' => 'creategroup');
        ensure_record_exists('event_type', $event, $event);
    }
    if ($oldversion < 2009082400) {
        $table = new XMLDBTable('usr_registration');
        $field = new XMLDBField('username');
        drop_field($table, $field);
        $field = new XMLDBField('salt');
        drop_field($table, $field);
        $field = new XMLDBField('password');
        drop_field($table, $field);
    }
    if ($oldversion < 2009082600) {
        $captcha = get_config('captcha_on_contact_form');
        set_config('captchaoncontactform', (int) (is_null($captcha) || $captcha));
        $captcha = get_config('captcha_on_register_form');
        set_config('captchaonregisterform', (int) (is_null($captcha) || $captcha));
    }
    if ($oldversion < 2009090700) {
        set_config('showselfsearchsideblock', 1);
        set_config('showtagssideblock', 1);
        set_config('tagssideblockmaxtags', 20);
    }
    if ($oldversion < 2009092100) {
        if ($data = check_upgrades('import.file')) {
            upgrade_plugin($data);
        }
        if ($data = check_upgrades('blocktype.creativecommons')) {
            upgrade_plugin($data);
        }
    }
    if ($oldversion < 2009092900) {
        $event = (object) array('name' => 'deleteartefacts');
        ensure_record_exists('event_type', $event, $event);
    }
    if ($oldversion < 2009101600) {
        // Remove bbcode formatting from existing feedback
        if ($records = get_records_sql_array("SELECT * FROM {view_feedback} WHERE message LIKE '%[%'", array())) {
            foreach ($records as &$r) {
                if (function_exists('parse_bbcode')) {
                    $r->message = parse_bbcode($r->message);
                }
                update_record('view_feedback', $r);
            }
        }
        if ($records = get_records_sql_array("SELECT * FROM {artefact_feedback} WHERE message LIKE '%[%'", array())) {
            foreach ($records as &$r) {
                if (function_exists('parse_bbcode')) {
                    $r->message = parse_bbcode($r->message);
                }
                update_record('artefact_feedback', $r);
            }
        }
    }
    if ($oldversion < 2009102100) {
        // Now the view_layout table has to have records for all column widths
        $record = (object) array('columns' => 1, 'widths' => '100');
        insert_record('view_layout', $record);
        $record = (object) array('columns' => 5, 'widths' => '20,20,20,20,20');
        insert_record('view_layout', $record);
    }
    if ($oldversion < 2009102200) {
        if (!count_records_select('activity_type', 'name = ? AND plugintype IS NULL AND pluginname IS NULL', array('groupmessage'))) {
            insert_record('activity_type', (object) array('name' => 'groupmessage', 'admin' => 0, 'delay' => 0));
        }
    }
    if ($oldversion < 2009102900) {
        $table = new XMLDBTable('usr');
        $field = new XMLDBField('sessionid');
        drop_field($table, $field);
    }
    if ($oldversion < 2009110500) {
        set_config('creategroups', 'all');
    }
    if ($oldversion < 2009110900) {
        // Fix export cronjob so it runs 12 hours apart
        execute_sql("UPDATE {cron} SET hour = '3,15' WHERE callfunction = 'export_cleanup_old_exports'");
        // Cron job to clean old imports
        $cron = new StdClass();
        $cron->callfunction = 'import_cleanup_old_imports';
        $cron->minute = '0';
        $cron->hour = '4,16';
        $cron->day = '*';
        $cron->month = '*';
        $cron->dayofweek = '*';
        insert_record('cron', $cron);
    }
    if ($oldversion < 2009111200) {
        $table = new XMLDBTable('artefact_internal_profile_email');
        $field = new XMLDBField('mailssent');
        $field->setAttributes(XMLDB_TYPE_INTEGER, 2, null, XMLDB_NOTNULL, null, null, null, 0);
        add_field($table, $field);
    }
    if ($oldversion < 2009111201) {
        $table = new XMLDBTable('artefact_internal_profile_email');
        $field = new XMLDBField('mailsbounced');
        $field->setAttributes(XMLDB_TYPE_INTEGER, 2, null, XMLDB_NOTNULL, null, null, null, 0);
        add_field($table, $field);
    }
    if ($oldversion < 2009120100) {
        // Fix for bug in 1.1 => 1.2 upgrade which may have inserted
        // a second groupmessage activity_type record
        $records = get_records_select_array('activity_type', 'name = ? AND plugintype IS NULL AND pluginname IS NULL', array('groupmessage'), 'id');
        if ($records && count($records) > 1) {
            for ($i = 1; $i < count($records); $i++) {
                delete_records('activity_queue', 'type', $records[$i]->id);
                delete_records('notification_internal_activity', 'type', $records[$i]->id);
                delete_records('notification_emaildigest_queue', 'type', $records[$i]->id);
                delete_records('usr_activity_preference', 'activity', $records[$i]->id);
                delete_records('activity_type', 'id', $records[$i]->id);
            }
        }
    }
    if ($oldversion < 2009120900) {
        $table = new XMLDBTable('view');
        $field = new XMLDBField('theme');
        $field->setAttributes(XMLDB_TYPE_CHAR, 255, XMLDB_UNSIGNED, null);
        add_field($table, $field);
    }
    if ($oldversion < 2010011300) {
        // Clean up the mess left behind by failing to delete blogposts in a transaction
        try {
            include_once get_config('docroot') . 'artefact/lib.php';
            if (function_exists('rebuild_artefact_parent_cache_dirty')) {
                rebuild_artefact_parent_cache_dirty();
            }
        } catch (Exception $e) {
            log_debug('Upgrade 2010011300: rebuild_artefact_parent_cache_dirty failed.');
        }
        execute_sql("\n            INSERT INTO {artefact_blog_blogpost} (blogpost)\n            SELECT id FROM {artefact} WHERE artefacttype = 'blogpost' AND id NOT IN (\n                SELECT blogpost FROM {artefact_blog_blogpost}\n            )");
    }
    if ($oldversion < 2010012700) {
        set_config('viewmicroheaders', 1);
    }
    if ($oldversion < 2010012701) {
        set_config('userscanchooseviewthemes', 1);
    }
    if ($oldversion < 2010021500) {
        if ($data = check_upgrades('blocktype.recentforumposts')) {
            upgrade_plugin($data);
        }
    }
    if ($oldversion < 2010021600) {
        // Set remoteavatars defaults
        // Check if the site is using https
        $urlprotocol = substr(get_config('wwwroot'), 0, 5);
        if (strtolower($urlprotocol) == 'https') {
            // Avoid mix of secure and insecure contents
            set_config('remoteavatars', 0);
        } else {
            // Check to see if we can reach gravatar.com
            $ch = curl_init();
            curl_setopt($ch, CURLOPT_FAILONERROR, true);
            curl_setopt($ch, CURLOPT_FRESH_CONNECT, true);
            curl_setopt($ch, CURLOPT_HEADER, false);
            curl_setopt($ch, CURLOPT_VERBOSE, false);
            curl_setopt($ch, CURLOPT_NOBODY, true);
            curl_setopt($ch, CURLOPT_TIMEOUT, 5);
            // timeout in seconds
            curl_setopt($ch, CURLOPT_COOKIE, '');
            curl_setopt($ch, CURLOPT_REFERER, '');
            // for privacy
            curl_setopt($ch, CURLOPT_URL, 'http://www.gravatar.com/');
            if (curl_exec($ch)) {
                // By default, turn it on
                set_config('remoteavatars', 1);
            } else {
                // Can't reach gravatar.com in a timely fashion
                set_config('remoteavatars', 0);
            }
            curl_close($ch);
        }
    }
    if ($oldversion < 2010031000) {
        // For existing sites, preserve current user search behaviour:
        // Users are only searchable by their display names.
        set_config('userscanhiderealnames', 1);
        execute_sql("\n            INSERT INTO {usr_account_preference} (usr, field, value)\n            SELECT u.id, 'hiderealname', 1\n            FROM {usr} u LEFT JOIN {usr_account_preference} p ON (u.id = p.usr AND p.field = 'hiderealname')\n            WHERE NOT u.preferredname IS NULL AND u.preferredname != '' AND p.field IS NULL\n        ");
    }
    if ($oldversion < 2010040700) {
        // Set antispam defaults
        set_config('formsecret', get_random_key());
        if (!function_exists('checkdnsrr')) {
            require_once get_config('docroot') . 'lib/antispam.php';
        }
        if (checkdnsrr('test.uribl.com.black.uribl.com', 'A')) {
            set_config('antispam', 'advanced');
        } else {
            set_config('antispam', 'simple');
        }
        set_config('spamhaus', 0);
        set_config('surbl', 0);
    }
    if ($oldversion < 2010040800) {
        $table = new XMLDBTable('view');
        $field = new XMLDBField('submittedtime');
        $field->setAttributes(XMLDB_TYPE_DATETIME, null, null);
        add_field($table, $field);
    }
    if ($oldversion < 2010041200) {
        delete_records('config', 'field', 'captchaoncontactform');
        delete_records('config', 'field', 'captchaonregisterform');
    }
    if ($oldversion < 2010041201) {
        $sql = "\n            SELECT u.id\n            FROM {usr} u\n            LEFT JOIN {artefact} a\n                ON (a.owner = u.id AND a.artefacttype = 'blog')\n            WHERE u.id > 0\n            GROUP BY u.id\n            HAVING COUNT(a.id) != 1";
        $manyblogusers = get_records_sql_array($sql, null);
        if ($manyblogusers) {
            foreach ($manyblogusers as $u) {
                $where = (object) array('usr' => $u->id, 'field' => 'multipleblogs');
                $data = (object) array('usr' => $u->id, 'field' => 'multipleblogs', 'value' => 1);
                ensure_record_exists('usr_account_preference', $where, $data);
            }
        }
    }
    if ($oldversion < 2010041600 && table_exists(new XMLDBTable('view_feedback'))) {
        // Add author, authorname to artefact table
        $table = new XMLDBTable('artefact');
        $field = new XMLDBField('author');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10');
        add_field($table, $field);
        $key = new XMLDBKey('authorfk');
        $key->setAttributes(XMLDB_KEY_FOREIGN, array('author'), 'usr', array('id'));
        add_key($table, $key);
        table_column('artefact', null, 'authorname', 'text', null, null, null, '');
        if (is_postgres()) {
            execute_sql("ALTER TABLE {artefact} ALTER COLUMN authorname DROP DEFAULT");
            set_field('artefact', 'authorname', null);
            execute_sql('UPDATE {artefact} SET authorname = g.name FROM {group} g WHERE "group" = g.id');
            execute_sql("UPDATE {artefact} SET authorname = CASE WHEN institution = 'mahara' THEN ? ELSE i.displayname END FROM {institution} i WHERE institution = i.name", array(get_config('sitename')));
        } else {
            execute_sql("UPDATE {artefact} a, {group} g SET a.authorname = g.name WHERE a.group = g.id");
            execute_sql("UPDATE {artefact} a, {institution} i SET a.authorname = CASE WHEN a.institution = 'mahara' THEN ? ELSE i.displayname END WHERE a.institution = i.name", array(get_config('sitename')));
        }
        execute_sql('UPDATE {artefact} SET author = owner WHERE owner IS NOT NULL');
        execute_sql('ALTER TABLE {artefact} ADD CHECK (
            (author IS NOT NULL AND authorname IS NULL    ) OR
            (author IS NULL     AND authorname IS NOT NULL)
        )');
        // Move feedback activity type to artefact plugin
        execute_sql("\n            UPDATE {activity_type}\n            SET plugintype = 'artefact', pluginname = 'comment'\n            WHERE name = 'feedback'\n        ");
        // Install the comment artefact
        if ($data = check_upgrades('artefact.comment')) {
            upgrade_plugin($data);
        }
        // Flag all views & artefacts to enable/disable comments
        table_column('artefact', null, 'allowcomments', 'integer', 1);
        table_column('view', null, 'allowcomments', 'integer', 1, null, 1);
        // Initially allow comments on blogposts, images, files
        set_field_select('artefact', 'allowcomments', 1, 'artefacttype IN (?,?,?)', array('blogpost', 'image', 'file'));
        // Convert old feedback to comment artefacts
        if ($viewfeedback = get_records_sql_array('
            SELECT f.*, v.id AS viewid, v.owner, v.group, v.institution
            FROM {view_feedback} f JOIN {view} v ON f.view = v.id', array())) {
            foreach ($viewfeedback as &$f) {
                if ($f->author > 0) {
                    $f->authorname = null;
                } else {
                    $f->author = null;
                    if (empty($f->authorname)) {
                        $f->authorname = '?';
                    }
                }
                $artefact = (object) array('artefacttype' => 'comment', 'owner' => $f->owner, 'group' => $f->group, 'institution' => $f->institution, 'author' => $f->author, 'authorname' => $f->authorname, 'title' => get_string('Comment', 'artefact.comment'), 'description' => $f->message, 'ctime' => $f->ctime, 'atime' => $f->ctime, 'mtime' => $f->ctime);
                $aid = insert_record('artefact', $artefact, 'id', true);
                $comment = (object) array('artefact' => $aid, 'private' => 1 - $f->public, 'onview' => $f->viewid);
                insert_record('artefact_comment_comment', $comment);
                if (!empty($f->attachment)) {
                    insert_record('artefact_attachment', (object) array('artefact' => $aid, 'attachment' => $f->attachment));
                }
            }
        }
        // We are throwing away the view information from artefact_feedback.
        // From now on all artefact comments appear together and are not
        // tied to a particular view.
        if ($artefactfeedback = get_records_sql_array('
            SELECT f.*, a.id AS artefactid, a.owner, a.group, a.institution
            FROM {artefact_feedback} f JOIN {artefact} a ON f.artefact = a.id', array())) {
            foreach ($artefactfeedback as &$f) {
                if ($f->author > 0) {
                    $f->authorname = null;
                } else {
                    $f->author = null;
                    if (empty($f->authorname)) {
                        $f->authorname = '?';
                    }
                }
                $artefact = (object) array('artefacttype' => 'comment', 'owner' => $f->owner, 'group' => $f->group, 'institution' => $f->institution, 'author' => $f->author, 'authorname' => $f->authorname, 'title' => get_string('Comment', 'artefact.comment'), 'description' => $f->message, 'ctime' => $f->ctime, 'atime' => $f->ctime, 'mtime' => $f->ctime);
                $aid = insert_record('artefact', $artefact, 'id', true);
                $comment = (object) array('artefact' => $aid, 'private' => 1 - $f->public, 'onartefact' => $f->artefactid);
                insert_record('artefact_comment_comment', $comment);
            }
        }
        // Drop feedback tables
        $table = new XMLDBTable('view_feedback');
        drop_table($table);
        $table = new XMLDBTable('artefact_feedback');
        drop_table($table);
        // Add site setting for anonymous comments
        set_config('anonymouscomments', 1);
    }
    if ($oldversion < 2010041900 && !table_exists(new XMLDBTable('site_data'))) {
        // Upgrades for admin stats pages
        // Table for collection of historical stats
        $table = new XMLDBTable('site_data');
        $table->addFieldInfo('ctime', XMLDB_TYPE_DATETIME, null, XMLDB_NOTNULL);
        $table->addFieldInfo('type', XMLDB_TYPE_CHAR, 255, null, XMLDB_NOTNULL);
        $table->addFieldInfo('value', XMLDB_TYPE_TEXT, 'small', null);
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('ctime', 'type'));
        create_table($table);
        // Insert cron jobs to save site data
        $cron = new StdClass();
        $cron->callfunction = 'cron_site_data_weekly';
        $cron->minute = 55;
        $cron->hour = 23;
        $cron->day = '*';
        $cron->month = '*';
        $cron->dayofweek = 6;
        insert_record('cron', $cron);
        $cron = new StdClass();
        $cron->callfunction = 'cron_site_data_daily';
        $cron->minute = 51;
        $cron->hour = 23;
        $cron->day = '*';
        $cron->month = '*';
        $cron->dayofweek = '*';
        insert_record('cron', $cron);
        // Put best guess at installation time into config table.
        set_config('installation_time', get_field_sql("SELECT MIN(ctime) FROM {site_content}"));
        // Save the current time so we know when we started collecting stats
        set_config('stats_installation_time', db_format_timestamp(time()));
        // Add ctime to usr table for daily count of users created
        $table = new XMLDBTable('usr');
        $field = new XMLDBField('ctime');
        $field->setAttributes(XMLDB_TYPE_DATETIME, null, null);
        add_field($table, $field);
        // Add visits column to view table
        $table = new XMLDBTable('view');
        $field = new XMLDBField('visits');
        $field->setAttributes(XMLDB_TYPE_INTEGER, 10, XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, 0);
        add_field($table, $field);
        // Add table to store daily view visits
        $table = new XMLDBTable('view_visit');
        $table->addFieldInfo('ctime', XMLDB_TYPE_DATETIME, null, null, XMLDB_NOTNULL);
        $table->addFieldInfo('view', XMLDB_TYPE_INTEGER, 10, false, XMLDB_NOTNULL);
        $table->addKeyInfo('viewfk', XMLDB_KEY_FOREIGN, array('view'), 'view', array('id'));
        $table->addIndexInfo('ctimeix', XMLDB_INDEX_NOTUNIQUE, array('ctime'));
        create_table($table);
        // Insert a cron job to check for new versions of Mahara
        $cron = new StdClass();
        $cron->callfunction = 'cron_check_for_updates';
        $cron->minute = rand(0, 59);
        $cron->hour = rand(0, 23);
        $cron->day = '*';
        $cron->month = '*';
        $cron->dayofweek = '*';
        insert_record('cron', $cron);
    }
    if ($oldversion < 2010042600) {
        // @todo: Move to notification/internal
        $table = new XMLDBTable('notification_internal_activity');
        $field = new XMLDBField('parent');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10');
        add_field($table, $field);
        $key = new XMLDBKey('parentfk');
        $key->setAttributes(XMLDB_KEY_FOREIGN, array('parent'), 'notification_internal_activity', array('id'));
        add_key($table, $key);
        $field = new XMLDBField('from');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10');
        add_field($table, $field);
        $key = new XMLDBKey('fromfk');
        $key->setAttributes(XMLDB_KEY_FOREIGN, array('from'), 'usr', array('id'));
        add_key($table, $key);
        // Set from column for old user messages
        $usermessages = get_records_array('notification_internal_activity', 'type', get_field('activity_type', 'id', 'name', 'usermessage'));
        if ($usermessages) {
            foreach ($usermessages as &$m) {
                if (preg_match('/sendmessage\\.php\\?id=(\\d+)/', $m->url, $match)) {
                    set_field('notification_internal_activity', 'from', $match[1], 'id', $m->id);
                }
            }
        }
    }
    if ($oldversion < 2010042602 && !get_record('view_type', 'type', 'dashboard')) {
        insert_record('view_type', (object) array('type' => 'dashboard'));
        if ($data = check_upgrades('blocktype.inbox')) {
            upgrade_plugin($data);
        }
        if ($data = check_upgrades('blocktype.newviews')) {
            upgrade_plugin($data);
        }
        // Install system dashboard view
        require_once get_config('libroot') . 'view.php';
        $dbtime = db_format_timestamp(time());
        $viewdata = (object) array('type' => 'dashboard', 'owner' => 0, 'numcolumns' => 2, 'ownerformat' => FORMAT_NAME_PREFERREDNAME, 'title' => get_string('dashboardviewtitle', 'view'), 'template' => 1, 'ctime' => $dbtime, 'atime' => $dbtime, 'mtime' => $dbtime);
        $id = insert_record('view', $viewdata, 'id', true);
        $accessdata = (object) array('view' => $id, 'accesstype' => 'loggedin');
        insert_record('view_access', $accessdata);
        $blocktypes = array(array('blocktype' => 'newviews', 'title' => get_string('title', 'blocktype.newviews'), 'column' => 1, 'config' => array('limit' => 5)), array('blocktype' => 'myviews', 'title' => get_string('title', 'blocktype.myviews'), 'column' => 1, 'config' => null), array('blocktype' => 'inbox', 'title' => get_string('recentactivity'), 'column' => 2, 'config' => array('feedback' => true, 'groupmessage' => true, 'institutionmessage' => true, 'maharamessage' => true, 'usermessage' => true, 'viewaccess' => true, 'watchlist' => true, 'maxitems' => '5')), array('blocktype' => 'inbox', 'title' => get_string('topicsimfollowing'), 'column' => 2, 'config' => array('newpost' => true, 'maxitems' => '5')));
        $installed = get_column_sql('SELECT name FROM {blocktype_installed}');
        $weights = array(1 => 0, 2 => 0);
        foreach ($blocktypes as $blocktype) {
            if (in_array($blocktype['blocktype'], $installed)) {
                $weights[$blocktype['column']]++;
                insert_record('block_instance', (object) array('blocktype' => $blocktype['blocktype'], 'title' => $blocktype['title'], 'view' => $id, 'column' => $blocktype['column'], 'order' => $weights[$blocktype['column']], 'configdata' => serialize($blocktype['config'])));
            }
        }
    }
    if ($oldversion < 2010042603) {
        execute_sql('ALTER TABLE {usr} ADD COLUMN showhomeinfo SMALLINT NOT NULL DEFAULT 1');
        set_config('homepageinfo', 1);
    }
    if ($oldversion < 2010042604) {
        // @todo: Move to notification/internal
        $table = new XMLDBTable('notification_internal_activity');
        $field = new XMLDBField('urltext');
        $field->setAttributes(XMLDB_TYPE_TEXT);
        add_field($table, $field);
    }
    if ($oldversion < 2010051000) {
        set_field('activity_type', 'delay', 1, 'name', 'groupmessage');
    }
    if ($oldversion < 2010052000) {
        $showusers = get_config('showonlineuserssideblock');
        set_config('showonlineuserssideblock', (int) (is_null($showusers) || $showusers));
    }
    if ($oldversion < 2010060300) {
        // Add table to associate users with php session ids
        $table = new XMLDBTable('usr_session');
        $table->addFieldInfo('usr', XMLDB_TYPE_INTEGER, 10, false, XMLDB_NOTNULL);
        $table->addFieldInfo('session', XMLDB_TYPE_CHAR, 255, null, XMLDB_NOTNULL);
        $table->addFieldInfo('ctime', XMLDB_TYPE_DATETIME, null, null, XMLDB_NOTNULL);
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('session'));
        $table->addIndexInfo('usrix', XMLDB_INDEX_NOTUNIQUE, array('usr'));
        create_table($table);
    }
    if ($oldversion < 2010061100) {
        set_config('registerterms', 1);
    }
    if ($oldversion < 2010061800) {
        insert_record('view_type', (object) array('type' => 'grouphomepage'));
        if ($data = check_upgrades('blocktype.groupmembers')) {
            upgrade_plugin($data);
        }
        if ($data = check_upgrades('blocktype.groupinfo')) {
            upgrade_plugin($data);
        }
        if ($data = check_upgrades('blocktype.groupviews')) {
            upgrade_plugin($data);
        }
        $dbtime = db_format_timestamp(time());
        // create a system template for group homepage views
        require_once get_config('libroot') . 'view.php';
        $viewdata = (object) array('type' => 'grouphomepage', 'owner' => 0, 'numcolumns' => 1, 'template' => 1, 'title' => get_string('grouphomepage', 'view'), 'ctime' => $dbtime, 'atime' => $dbtime, 'mtime' => $dbtime);
        $id = insert_record('view', $viewdata, 'id', true);
        $accessdata = (object) array('view' => $id, 'accesstype' => 'loggedin');
        insert_record('view_access', $accessdata);
        $blocktypes = array(array('blocktype' => 'groupinfo', 'title' => '', 'column' => 1, 'config' => null), array('blocktype' => 'recentforumposts', 'title' => get_string('latestforumposts', 'interaction.forum'), 'column' => 1, 'config' => null), array('blocktype' => 'groupviews', 'title' => get_string('Views', 'view'), 'column' => 1, 'config' => null), array('blocktype' => 'groupmembers', 'title' => get_string('Members', 'group'), 'column' => 1, 'config' => null));
        $installed = get_column_sql('SELECT name FROM {blocktype_installed}');
        foreach ($blocktypes as $k => $blocktype) {
            if (!in_array($blocktype['blocktype'], $installed)) {
                unset($blocktypes[$k]);
            }
        }
        $weights = array(1 => 0);
        foreach ($blocktypes as $blocktype) {
            $weights[$blocktype['column']]++;
            insert_record('block_instance', (object) array('blocktype' => $blocktype['blocktype'], 'title' => $blocktype['title'], 'view' => $id, 'column' => $blocktype['column'], 'order' => $weights[$blocktype['column']], 'configdata' => serialize($blocktype['config'])));
        }
        // add a default group homepage view for all groups in the system
        unset($viewdata->owner);
        $viewdata->template = 0;
        if (!($groups = get_records_array('group', '', '', '', 'id,public'))) {
            $groups = array();
        }
        foreach ($groups as $group) {
            $viewdata->group = $group->id;
            $id = insert_record('view', $viewdata, 'id', true);
            insert_record('view_access', (object) array('view' => $id, 'accesstype' => $group->public ? 'public' : 'loggedin'));
            insert_record('view_access_group', (object) array('view' => $id, 'group' => $group->id));
            $weights = array(1 => 0);
            foreach ($blocktypes as $blocktype) {
                $weights[$blocktype['column']]++;
                insert_record('block_instance', (object) array('blocktype' => $blocktype['blocktype'], 'title' => $blocktype['title'], 'view' => $id, 'column' => $blocktype['column'], 'order' => $weights[$blocktype['column']], 'configdata' => serialize($blocktype['config'])));
            }
        }
    }
    if ($oldversion < 2010062502) {
        //new feature feedback control on views
        $table = new XMLDBTable('view_access');
        $field = new XMLDBField('allowcomments');
        $field->setAttributes(XMLDB_TYPE_INTEGER, 1, null, XMLDB_NOTNULL, null, null, null, 0);
        add_field($table, $field);
        $field = new XMLDBField('approvecomments');
        $field->setAttributes(XMLDB_TYPE_INTEGER, 1, null, XMLDB_NOTNULL, null, null, null, 1);
        add_field($table, $field);
        // Add comment approval to view/artefact (default 0)
        $field = new XMLDBField('approvecomments');
        $field->setAttributes(XMLDB_TYPE_INTEGER, 1, null, XMLDB_NOTNULL, null, null, null, 0);
        $table = new XMLDBTable('view');
        add_field($table, $field);
        $table = new XMLDBTable('artefact');
        add_field($table, $field);
        // view_access_(group|usr|token) tables are getting wide with duplicated columns,
        // so just create all the necessary columns in view_access and move stuff there
        $table = new XMLDBTable('view_access');
        $field = new XMLDBField('accesstype');
        $field->setAttributes(XMLDB_TYPE_CHAR, 16, null, null);
        change_field_notnull($table, $field);
        $field = new XMLDBField('group');
        $field->setAttributes(XMLDB_TYPE_INTEGER, 10, null, null);
        add_field($table, $field);
        $field = new XMLDBField('role');
        $field->setAttributes(XMLDB_TYPE_CHAR, 255, null, null);
        add_field($table, $field);
        $field = new XMLDBField('usr');
        $field->setAttributes(XMLDB_TYPE_INTEGER, 10, null, null);
        add_field($table, $field);
        $field = new XMLDBField('token');
        $field->setAttributes(XMLDB_TYPE_CHAR, 100, null, null);
        add_field($table, $field);
        $field = new XMLDBField('visible');
        $field->setAttributes(XMLDB_TYPE_INTEGER, 1, null, XMLDB_NOTNULL, null, null, null, 1);
        add_field($table, $field);
        // Copy data to view_access
        execute_sql('
            INSERT INTO {view_access} (view, accesstype, "group", role, startdate, stopdate)
            SELECT view, NULL, "group", role, startdate, stopdate FROM {view_access_group}');
        execute_sql('
            INSERT INTO {view_access} (view, accesstype, usr, startdate, stopdate)
            SELECT view, NULL, usr, startdate, stopdate FROM {view_access_usr}');
        execute_sql('
            INSERT INTO {view_access} (view, accesstype, token, visible, startdate, stopdate)
            SELECT view, NULL, token, visible, startdate, stopdate FROM {view_access_token}');
        // Add foreign keys
        $key = new XMLDBKey('groupfk');
        $key->setAttributes(XMLDB_KEY_FOREIGN, array('group'), 'group', array('id'));
        add_key($table, $key);
        $key = new XMLDBKey('usrfk');
        $key->setAttributes(XMLDB_KEY_FOREIGN, array('usr'), 'usr', array('id'));
        add_key($table, $key);
        $index = new XMLDBIndex('tokenuk');
        $index->setAttributes(XMLDB_INDEX_UNIQUE, array('token'));
        add_index($table, $index);
        // Exactly one of accesstype, group, usr, token must be not null
        execute_sql('ALTER TABLE {view_access} ADD CHECK (
            (accesstype IS NOT NULL AND "group" IS NULL     AND usr IS NULL     AND token IS NULL) OR
            (accesstype IS NULL     AND "group" IS NOT NULL AND usr IS NULL     AND token IS NULL) OR
            (accesstype IS NULL     AND "group" IS NULL     AND usr IS NOT NULL AND token IS NULL) OR
            (accesstype IS NULL     AND "group" IS NULL     AND usr IS NULL     AND token IS NOT NULL)
        )');
        // Drop old tables
        $table = new XMLDBTable('view_access_group');
        drop_table($table);
        $table = new XMLDBTable('view_access_usr');
        drop_table($table);
        $table = new XMLDBTable('view_access_token');
        drop_table($table);
        // Insert explicit tutor access records for submitted views
        if (!($submittedviews = get_records_sql_array('
            SELECT v.id, v.submittedgroup, g.grouptype
            FROM {view} v JOIN {group} g ON (v.submittedgroup = g.id AND g.deleted = 0)', array()))) {
            $submittedviews = array();
        }
        $roles = array();
        foreach ($submittedviews as $v) {
            if (!isset($roles[$v->grouptype])) {
                $rs = get_column('grouptype_roles', 'role', 'grouptype', $v->grouptype, 'see_submitted_views', 1);
                $roles[$v->grouptype] = empty($rs) ? array() : $rs;
            }
            foreach ($roles[$v->grouptype] as $role) {
                $accessrecord = (object) array('view' => $v->id, 'group' => $v->submittedgroup, 'role' => $role, 'visible' => 0, 'allowcomments' => 1, 'approvecomments' => 0);
                ensure_record_exists('view_access', $accessrecord, $accessrecord);
            }
        }
    }
    if ($oldversion < 2010070700) {
        $table = new XMLDBTable('group_category');
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL, XMLDB_SEQUENCE);
        $table->addFieldInfo('title', XMLDB_TYPE_CHAR, 255, null, XMLDB_NOTNULL);
        $table->addFieldInfo('displayorder', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL);
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        create_table($table);
        $table = new XMLDBTable('group');
        $field = new XMLDBField('category');
        $field->setAttributes(XMLDB_TYPE_INTEGER, 10);
        add_field($table, $field);
        $key = new XMLDBKey('categoryfk');
        $key->setAttributes(XMLDB_KEY_FOREIGN, array('category'), 'group_category', array('id'));
        add_key($table, $key);
    }
    if ($oldversion < 2010071300) {
        set_config('searchusernames', 1);
    }
    if ($oldversion < 2010071500) {
        reload_html_filters();
    }
    if ($oldversion < 2010071600) {
        if (is_postgres()) {
            // change_field_enum should do this
            execute_sql('ALTER TABLE {view_access} DROP CONSTRAINT {viewacce_acc_ck}');
        }
        $table = new XMLDBTable('view_access');
        $field = new XMLDBField('accesstype');
        $field->setAttributes(XMLDB_TYPE_CHAR, 16, null, null, null, XMLDB_ENUM, array('public', 'loggedin', 'friends', 'objectionable'));
        change_field_enum($table, $field);
    }
    if ($oldversion < 2010071900) {
        $table = new XMLDBTable('group');
        $field = new XMLDBField('viewnotify');
        $field->setAttributes(XMLDB_TYPE_INTEGER, 1, null, XMLDB_NOTNULL, null, null, null, 1);
        add_field($table, $field);
    }
    if ($oldversion < 2010081000) {
        // new table collection
        $table = new XMLDBTable('collection');
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('name', XMLDB_TYPE_CHAR, 255, XMLDB_UNSIGNED, XMLDB_NOTNULL);
        $table->addFieldInfo('owner', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL);
        $table->addFieldInfo('ctime', XMLDB_TYPE_DATETIME, null, null, XMLDB_NOTNULL);
        $table->addFieldInfo('mtime', XMLDB_TYPE_DATETIME, null, null, XMLDB_NOTNULL);
        $table->addFieldInfo('description', XMLDB_TYPE_TEXT, null);
        $table->addFieldInfo('navigation', XMLDB_TYPE_INTEGER, 1, null, XMLDB_NOTNULL, null, null, null, 1);
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addKeyInfo('usrfk', XMLDB_KEY_FOREIGN, array('owner'), 'usr', array('id'));
        create_table($table);
        // new table collection_view
        $table = new XMLDBTable('collection_view');
        $table->addFieldInfo('view', XMLDB_TYPE_INTEGER, 10, false, XMLDB_NOTNULL);
        $table->addFieldInfo('collection', XMLDB_TYPE_INTEGER, 10, false, XMLDB_NOTNULL);
        $table->addFieldInfo('displayorder', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL);
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('view'));
        $table->addKeyInfo('viewfk', XMLDB_KEY_FOREIGN, array('view'), 'view', array('id'));
        $table->addKeyInfo('collectionfk', XMLDB_KEY_FOREIGN, array('collection'), 'collection', array('id'));
        create_table($table);
        // Drop unique constraint on token column of view_access
        $table = new XMLDBTable('view_access');
        $index = new XMLDBIndex('tokenuk');
        $index->setAttributes(XMLDB_INDEX_UNIQUE, array('token'));
        drop_index($table, $index);
        $index = new XMLDBIndex('tokenix');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('token'));
        add_index($table, $index);
    }
    if ($oldversion < 2010081001) {
        if ($data = check_upgrades('artefact.plans')) {
            upgrade_plugin($data);
        }
        if ($data = check_upgrades('blocktype.plans/plans')) {
            upgrade_plugin($data);
        }
    }
    if ($oldversion < 2010081100) {
        if ($data = check_upgrades('blocktype.navigation')) {
            upgrade_plugin($data);
        }
    }
    if ($oldversion < 2010082000) {
        delete_records_select('config', "field IN ('usersrank', 'groupsrank', 'viewsrank')");
    }
    if ($oldversion < 2010091300) {
        // Cron job missing from installs post 2010041900
        if (!record_exists('cron', 'callfunction', 'cron_check_for_updates')) {
            $cron = new StdClass();
            $cron->callfunction = 'cron_check_for_updates';
            $cron->minute = rand(0, 59);
            $cron->hour = rand(0, 23);
            $cron->day = '*';
            $cron->month = '*';
            $cron->dayofweek = '*';
            insert_record('cron', $cron);
        }
    }
    if ($oldversion < 2010091500) {
        // Previous version of 2010040800 upgrade created the submittedtime
        // column not null (see bug #638550)
        $table = new XMLDBTable('view');
        $field = new XMLDBField('submittedtime');
        $field->setAttributes(XMLDB_TYPE_DATETIME, null, null);
        change_field_notnull($table, $field);
        // Our crappy db is full of redundant data (submittedtime depends on
        // submittedhost or submittedgroup) so it's easy to correct this.
        execute_sql("\n            UPDATE {view} SET submittedtime = NULL\n            WHERE submittedtime IS NOT NULL AND submittedgroup IS NULL AND submittedhost IS NULL");
    }
    return $status;
}
function xmldb_wiki_upgrade($oldversion = 0)
{
    global $CFG, $db;
    $result = true;
    // Checks if the current version installed in the system is old wiki (ewiki) or is new wiki (nwiki)
    // We can distinguish ewiki from nwiki checking wiki_synonymous table existence.
    //Initialy we asume we aren't upgrading from old wiki
    $fromoldwiki = false;
    $table = new XMLDBTable('wiki_synonymous');
    if (!table_exists($table)) {
        //New wiki isn't installed yet
        $fromoldwiki = true;
        //We are upgrading from old wiki.
        // Upgrading ewiki to last version using XMLDB functions.
        require_once $CFG->dirroot . '/mod/wiki/wikimigrate/ewiki_upgrade.php';
        $result = xmldb_ewiki_upgrade($oldversion);
        // We have an upgraded ewiki at this point of process.
        // Migration can start.
        require_once $CFG->dirroot . '/mod/wiki/wikimigrate/ewiki_migrate.php';
        wiki_migrate_ewiki();
        $oldversion = 0;
    }
    if ($result && $oldversion < 2006042900) {
        //Delete previous log_display records for wiki for safety
        delete_records('log_display', 'module', 'wiki');
        //Add new log_display_records
        $record->module = 'wiki';
        $record->action = 'add';
        $record->mtable = 'wiki';
        $record->field = 'name';
        $result = insert_record('log_display', $record);
        $record->action = 'update';
        $result = $result && insert_record('log_display', $record);
        $record->action = 'view';
        $result = $result && insert_record('log_display', $record);
        $record->action = 'view all';
        $result = $result && insert_record('log_display', $record);
        $record->mtable = 'wiki_pages';
        $record->field = 'pagename';
        $record->action = 'view page';
        $result = $result && insert_record('log_display', $record);
        $record->action = 'edit page';
        $result = $result && insert_record('log_display', $record);
        $record->action = 'save page';
        $result = $result && insert_record('log_display', $record);
        $record->action = 'info page';
        $result = $result && insert_record('log_display', $record);
        // OLD SENTENCES
        //        execute_sql(" INSERT INTO {$CFG->prefix}log_display (module, action, mtable, field) VALUES ('wiki', 'add', 'wiki', 'name') ");
        //        execute_sql(" INSERT INTO {$CFG->prefix}log_display (module, action, mtable, field) VALUES ('wiki', 'update', 'wiki', 'name') ");
        //        execute_sql(" INSERT INTO {$CFG->prefix}log_display (module, action, mtable, field) VALUES ('wiki', 'view', 'wiki', 'name') ");
        //        execute_sql(" INSERT INTO {$CFG->prefix}log_display (module, action, mtable, field) VALUES ('wiki', 'view all', 'wiki', 'name') ");
        //        execute_sql(" INSERT INTO {$CFG->prefix}log_display (module, action, mtable, field) VALUES ('wiki', 'view page', 'wiki_pages', 'pagename') ");
        //        execute_sql(" INSERT INTO {$CFG->prefix}log_display (module, action, mtable, field) VALUES ('wiki', 'edit page', 'wiki_pages', 'pagename') ");
        //        execute_sql(" INSERT INTO {$CFG->prefix}log_display (module, action, mtable, field) VALUES ('wiki', 'save page', 'wiki_pages', 'pagename') ");
        //        execute_sql(" INSERT INTO {$CFG->prefix}log_display (module, action, mtable, field) VALUES ('wiki', 'info page', 'wiki_pages', 'pagename') ");
    }
    if ($result && $oldversion < 2006050301) {
        $result = table_column('wiki_synonymous', '', 'userid', 'int', '10', 'unsigned', '0', 'not null', 'groupid');
        if (empty($fromoldwiki)) {
            //Only if we aren't migrating from old wiki, because it creates these columns and fills them!
            $result = $result && table_column('wiki', '', 'intro', 'text', '', '', '', 'not null', 'name');
            $result = $result && table_column('wiki', '', 'introformat', 'tinyint', '2', 'unsigned', '0', 'not null', 'intro');
            //add colums
            $result = $result && table_column('wiki_pages', '', 'userid', 'int', '10', 'unsigned', '0', 'not null', 'author');
            $result = $result && table_column('wiki_synonymous', '', 'userid', 'int', '10', 'unsigned', '0', 'not null', 'groupid');
            //set userid  via author values
            $authors = get_records_select('wiki_pages', null, null, 'distinct author');
            // OLD SENTENCE
            //            $authors = get_records_sql('SELECT DISTINCT author, author FROM '.$CFG->prefix.'wiki_pages');
            foreach ($authors as $author) {
                if ($user = get_record('user', 'username', $author->author)) {
                    $result = $result && set_field('wiki_pages', 'userid', $user->id, 'author', $author->author);
                }
            }
        }
    }
    if ($result && $oldversion < 2006050500) {
        //droping and regenerating some indexes to normalize everything
        //(some of them could not exist, but for safety...)
        $table = new XMLDBTable('wiki');
        $index = new XMLDBIndex('course');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('course'));
        $result = drop_index($table, $index);
        $index = new XMLDBIndex('course');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('course'));
        $result = $result && add_index($table, $index);
        $table = new XMLDBTable('wiki_pages');
        $key = new XMLDBKey('dfwiki_pages_uk');
        $key->setAttributes(XMLDB_KEY_UNIQUE, array('pagename', 'version', 'dfwiki', 'groupid', 'userid'));
        $result = $result && drop_key($table, $key);
        $key = new XMLDBKey('wiki_pages_uk');
        $key->setAttributes(XMLDB_KEY_UNIQUE, array('pagename', 'version', 'dfwiki', 'groupid', 'userid'));
        $result = $result && drop_key($table, $key);
        $key = new XMLDBKey('wiki_pages_uk');
        $key->setAttributes(XMLDB_KEY_UNIQUE, array('pagename', 'version', 'dfwiki', 'groupid', 'userid', 'ownerid'));
        $result = $result && add_key($table, $key);
        $table = new XMLDBTable('wiki_synonymous');
        $key = new XMLDBKey('dfwiki_synonymous_uk');
        $key->setAttributes(XMLDB_KEY_UNIQUE, array('syn', 'dfwiki', 'groupid', 'userid'));
        $result = drop_key($table, $key);
        $key = new XMLDBKey('wiki_synonymous_uk');
        $key->setAttributes(XMLDB_KEY_UNIQUE, array('syn', 'dfwiki', 'groupid', 'userid'));
        $result = drop_key($table, $key);
        $key = new XMLDBKey('wiki_synonymous_uk');
        $key->setAttributes(XMLDB_KEY_UNIQUE, array('syn', 'dfwiki', 'groupid', 'userid'));
        $result = $result && add_key($table, $key);
        // OLD SENTENCES
        //-        execute_sql(" ALTER TABLE {$CFG->prefix}wiki DROP KEY course;",false);
        //-        execute_sql(" ALTER TABLE {$CFG->prefix}wiki ADD KEY course (course);",false);
        //-        execute_sql(" ALTER TABLE {$CFG->prefix}wiki_pages DROP KEY dfwiki_pages_uk;",false);
        //-        execute_sql(" ALTER TABLE {$CFG->prefix}wiki_pages DROP KEY wiki_pages_uk;",false);
        //-        execute_sql(" ALTER TABLE {$CFG->prefix}wiki_pages ADD UNIQUE KEY wiki_pages_uk (pagename, version, dfwiki, groupid, userid);",false);
        //-        execute_sql(" ALTER TABLE {$CFG->prefix}wiki_synonymous DROP KEY dfwiki_synonymous_uk;",false);
        //        execute_sql(" ALTER TABLE {$CFG->prefix}wiki_synonymous DROP KEY wiki_synonymous_uk;",false);
        //        execute_sql(" ALTER TABLE {$CFG->prefix}wiki_synonymous ADD UNIQUE KEY wiki_synonymous_uk (syn,dfwiki,groupid, userid);",false);
    }
    if ($result && $oldversion < 2006051800) {
        $table = new XMLDBTable('wiki_pages');
        $field = new XMLDBField('highlight');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '1', null, XMLDB_NOTNULL, null, null, null, '0', 'editable');
        $result = add_field($table, $field);
        // OLD SENTECE
        //        execute_sql('ALTER TABLE `'.$CFG->prefix.'wiki_pages` ADD `highlight` tinyint(1) NOT NULL default 0 AFTER `editable`');
    }
    if ($result && $oldversion < 2006053000) {
        if (empty($fromoldwiki)) {
            //Only if we aren't migrating from old wiki, because it creates this column!
            $table = new XMLDBTable('wiki_pages');
            $field = new XMLDBField('votes');
            $field->setAttributes(XMLDB_TYPE_INTEGER, null, XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'hits');
            $result = add_field($table, $field);
            // OLD SENTENCE
            //    execute_sql('ALTER TABLE `'.$CFG->prefix.'wiki_pages` ADD `votes` INTEGER UNSIGNED NOT NULL default 0 AFTER `hits`');
        }
    }
    if ($result && $oldversion < 2006060701) {
        if (empty($fromoldwiki)) {
            $table = new XMLDBTable('wiki');
            $field = new XMLDBField('studentmode');
            $field->setAttributes(XMLDB_TYPE_INTEGER, '1', null, XMLDB_NOTNULL, null, null, null, '0', null);
            $result = add_field($table, $field);
            $field = new XMLDBField('teacherdiscussion');
            $field->setAttributes(XMLDB_TYPE_INTEGER, '1', null, XMLDB_NOTNULL, null, null, null, '0', null);
            $result = $result && add_field($table, $field);
            $field = new XMLDBField('studentdiscussion');
            $field->setAttributes(XMLDB_TYPE_INTEGER, '1', null, XMLDB_NOTNULL, null, null, null, '0', null);
            $result = $result && add_field($table, $field);
            $field = new XMLDBField('editanothergroup');
            $field->setAttributes(XMLDB_TYPE_INTEGER, '1', null, XMLDB_NOTNULL, null, null, null, '0', null);
            $result = $result && add_field($table, $field);
            $field = new XMLDBField('editanotherstudent');
            $field->setAttributes(XMLDB_TYPE_INTEGER, '1', null, XMLDB_NOTNULL, null, null, null, '0', null);
            $result = $result && add_field($table, $field);
            $table = new XMLDBTable('wiki_pages');
            $field = new XMLDBField('evaluation');
            $field->setAttributes(XMLDB_TYPE_TEXT, 'medium', null, XMLDB_NOTNULL, null, null, null, '', 'groupid');
            $result = add_field($table, $field);
            // OLD SENTENCES
            //            execute_sql('ALTER TABLE `'.$CFG->prefix.'wiki` ADD `studentmode` tinyint(1) NOT NULL default 0');
            //            execute_sql('ALTER TABLE `'.$CFG->prefix.'wiki` ADD `teacherdiscussion` int(1) NOT NULL default 0');
            //            execute_sql('ALTER TABLE `'.$CFG->prefix.'wiki` ADD `studentdiscussion` int(1) NOT NULL default 0');
            //            execute_sql('ALTER TABLE `'.$CFG->prefix.'wiki` ADD `editanothergroup` tinyint(1) not null default 0');
            //            execute_sql('ALTER TABLE `'.$CFG->prefix.'wiki` ADD `editanotherstudent` tinyint(1) not null default 0');
            //
            //            execute_sql('ALTER TABLE `'.$CFG->prefix.'wiki_pages` ADD `evaluation` MEDIUMTEXT default NULL AFTER `groupid`');
        } else {
            $table = new XMLDBTable('wiki_pages');
            $field = new XMLDBField('evaluation');
            $field->setAttributes(XMLDB_TYPE_TEXT, 'medium', null, null, null, null, null, '', 'ownerid');
            $result = add_field($table, $field);
            // OLD SENTENCE
            //            execute_sql('ALTER TABLE `'.$CFG->prefix.'wiki_pages` ADD `evaluation` MEDIUMTEXT default NULL AFTER `ownerid`');
        }
        $table = new XMLDBTable('wiki');
        $field = new XMLDBField('evaluation');
        $field->setAttributes(XMLDB_TYPE_CHAR, '40', null, null, null, null, null, 'noeval', 'studentdiscussion');
        $result = $result && add_field($table, $field);
        $field = new XMLDBField('notetype');
        $field->setAttributes(XMLDB_TYPE_CHAR, '40', null, null, null, null, null, 'quant', 'evaluation');
        $result = $result && add_field($table, $field);
        // OLD SENTECES
        //        execute_sql('ALTER TABLE `'.$CFG->prefix.'wiki` ADD `evaluation` varchar(40) default "noeval" AFTER `studentdiscussion`');
        //        execute_sql('ALTER TABLE `'.$CFG->prefix.'wiki` ADD `notetype` varchar(40) default "quant" AFTER `evaluation`');
    }
    if ($result && $oldversion < 2006060702 && empty($fromoldwiki)) {
        //make sure we don't have ownerid in the DB (backward compatibility)
        $table = new XMLDBTable('wiki_pages');
        $field = $table->findFieldInArray('ownerid');
        if (empty($field)) {
            $field = new XMLDBField('ownerid');
            $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'groupid');
            $result = add_field($table, $field);
            $key = new XMLDBKey('wiki_pages_uk');
            $key->setAttributes(XMLDB_KEY_UNIQUE, array('pagename', 'version', 'dfwiki', 'groupid', 'userid'));
            $result = $result && drop_key($table, $key);
            $key = new XMLDBKey('wiki_pages_uk');
            $key->setAttributes(XMLDB_KEY_UNIQUE, array('pagename', 'version', 'dfwiki', 'groupid', 'userid', 'ownerid'));
            $result = $result && add_key($table, $key);
            $table = new XMLDBTable('wiki_synonymous');
            $field = new XMLDBField('userid');
            $result = $result && drop_field($table, $field);
            $field = new XMLDBField('ownerid');
            $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', null);
            $result = $result && add_field($table, $field);
            $key = new XMLDBKey('wiki_synonymous_uk');
            $result = $result && drop_key($table, $key);
            $key = new XMLDBKey('wiki_synonymous_uk');
            $key->setAttributes(XMLDB_KEY_UNIQUE, array('syn', 'dfwiki', 'groupid', 'ownerid'));
            $result = $result && add_key($table, $key);
            // OLD SENTENCES
            //        //make sure we don't have ownerid in the DB (backward compatibility)
            //       if(!get_records_sql('SELECT ownerid FROM '.$CFG->prefix.'wiki_pages LIMIT 0 , 30')){
            //            //adding new ownerid replacing userid
            //-            execute_sql('ALTER TABLE `'.$CFG->prefix.'wiki_pages` ADD `ownerid` int(10) unsigned not null default 0 AFTER `groupid`');
            //-            execute_sql(" ALTER TABLE {$CFG->prefix}wiki_synonymous DROP userid;",false);
            //-            execute_sql('ALTER TABLE `'.$CFG->prefix.'wiki_synonymous` ADD `ownerid` int(10) unsigned not null default 0');
            //
            //-            execute_sql(" ALTER TABLE {$CFG->prefix}wiki_pages DROP KEY wiki_pages_uk;",false);
            //-            execute_sql(" ALTER TABLE {$CFG->prefix}wiki_pages ADD UNIQUE KEY wiki_pages_uk (pagename, version, dfwiki, groupid, userid, ownerid);",false);
            //
            //-            execute_sql(" ALTER TABLE {$CFG->prefix}wiki_synonymous DROP KEY wiki_synonymous_uk;",false);
            //-            execute_sql(" ALTER TABLE {$CFG->prefix}wiki_synonymous ADD UNIQUE KEY wiki_synonymous_uk (syn,dfwiki,groupid,ownerid);",false);
            //
            //now ownerid is the old userid, and userid is the author's id
            $quer = 'UPDATE ' . $CFG->prefix . 'wiki_pages SET ownerid = userid';
            $result = $result && execute_sql($quer);
            // It can't be translated to XMLDB functions
            $authors = get_records_select('wiki_pages', null, null, 'distinct author');
            foreach ($authors as $author) {
                if ($user = get_record('user', 'username', $author->author)) {
                    //set userid corrrectly
                    set_field('wiki_pages', 'userid', $user->id, 'author', $author->author);
                }
                // OLD SENTENCES
                //            //now ownerid is the old userid, and userid is the author's id
                //            $quer = 'UPDATE '.$CFG->prefix.'wiki_pages
                //            SET ownerid = userid';
                //            execute_sql($quer);
                //
                //            //set userid  via author values
                //            $authors = get_records_sql('SELECT DISTINCT author, author FROM '.$CFG->prefix.'wiki_pages');
                //            foreach($authors as $author) {
                //                if ($user = get_record('user', 'username', $author->author)) {
                //                        //set userid corrrectly
                //                        set_field ('wiki_pages', 'userid', $user->id, 'author', $author->author);
                //                }
                //            }
            }
        }
    }
    if ($result && $oldversion < 2006060702 && $fromoldwiki) {
        $table = new XMLDBTable('wiki_pages');
        $field = new XMLDBField('destacar');
        $result = drop_field($table, $field);
        $key = new XMLDBKey('wiki_pages_uk');
        $key->setAttributes(XMLDB_KEY_UNIQUE, array('pagename', 'version', 'dfwiki', 'groupid', 'userid'));
        $result = $result && drop_key($table, $key);
        $key = new XMLDBKey('wiki_pages_uk');
        $key->setAttributes(XMLDB_KEY_UNIQUE, array('pagename', 'version', 'dfwiki', 'groupid', 'userid', 'ownerid'));
        $result = $result && add_key($table, $key);
        $table = new XMLDBTable('wiki_synonymous');
        $field = new XMLDBField('userid');
        $result = $result && drop_field($table, $field);
        $key = new XMLDBKey('wiki_synonymous_uk');
        $key->setAttributes(XMLDB_KEY_UNIQUE, array('syn', 'dfwiki', 'groupid', 'userid', 'ownerid'));
        $result = $result && drop_key($table, $key);
        $key = new XMLDBKey('wiki_synonymous_uk');
        $key->setAttributes(XMLDB_KEY_UNIQUE, array('syn', 'dfwiki', 'groupid', 'ownerid'));
        $result = $result && add_key($table, $key);
        // OLD SENTENCES
        //        execute_sql('ALTER TABLE `'.$CFG->prefix.'wiki_pages` DROP `destacar`');
        //        execute_sql('ALTER TABLE `'.$CFG->prefix.'wiki_synonymous` DROP `userid`');
        //
        //        execute_sql(" ALTER TABLE {$CFG->prefix}wiki_pages DROP KEY wiki_pages_uk;",false);
        //        execute_sql(" ALTER TABLE {$CFG->prefix}wiki_pages ADD UNIQUE KEY wiki_pages_uk (pagename, version, dfwiki, groupid, userid, ownerid);",false);
        //
        //        execute_sql(" ALTER TABLE {$CFG->prefix}wiki_synonymous DROP KEY wiki_synonymous_uk;",false);
        //        execute_sql(" ALTER TABLE {$CFG->prefix}wiki_synonymous ADD UNIQUE KEY wiki_synonymous_uk (syn,dfwiki,groupid,ownerid);",false);
        $authors = get_records_select('wiki_pages', null, null, 'author');
        if (!empty($authors)) {
            foreach ($authors as $author) {
                if ($user = get_record('user', 'username', $author->author)) {
                    //set userid corrrectly
                    set_field('wiki_pages', 'userid', $user->id, 'author', $author->author);
                }
            }
        }
        //OLD SENTENCES
        //        //set userid  via author values
        //        $authors = get_records_sql('SELECT DISTINCT author, author FROM '.$CFG->prefix.'wiki_pages');
        //        foreach($authors as $author) {
        //            if ($user = get_record('user', 'username', $author->author)) {
        //                //set userid corrrectly
        //                set_field ('wiki_pages', 'userid', $user->id, 'author', $author->author);
        //            }
        //        }
    }
    //Actualizamos la newwiki independientemenre de si hemos utilizado
    //una dfwiki instalada y actualizada o una dfwiki temporal
    if ($result && $oldversion < 2006070700) {
        $table = new XMLDBTable('wiki');
        $field = new XMLDBField('votemode');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '1', null, XMLDB_NOTNULL, null, null, null, '0', null);
        $result = add_field($table, $field);
        // OLD SENTENCE
        //        execute_sql('ALTER TABLE `'.$CFG->prefix.'wiki` ADD `votemode` tinyint(1) NOT NULL default 0');
    }
    if ($result && $oldversion < 2006070703) {
        $table = new XMLDBTable('wiki_votes');
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('pagename', XMLDB_TYPE_CHAR, '160', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('version', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, '0', null);
        $table->addFieldInfo('dfwiki', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, '0', null);
        $table->addFieldInfo('username', XMLDB_TYPE_CHAR, '100', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $result = create_table($table);
        // OLD SENTENCE
        //        execute_sql('CREATE TABLE `'.$CFG->prefix.'wiki_votes` (`id` int(10) unsigned NOT NULL auto_increment,
        //                          `pagename` varchar(160) NOT NULL,
        //                          `version` int(10) unsigned NOT NULL default 0,
        //                          `dfwiki` int(10) unsigned NOT NULL,
        //                          `username` varchar(100) NOT NULL,
        //                          PRIMARY KEY  (`id`))');
    }
    if ($result && $oldversion < 2006071402) {
        $table = new XMLDBTable('wiki');
        $field = new XMLDBField('listofteachers');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '1', null, XMLDB_NOTNULL, null, null, null, '0', null);
        $result = add_field($table, $field);
        // OLD SENTENCE
        //        execute_sql('ALTER TABLE `'.$CFG->prefix.'wiki` ADD `listofteachers` tinyint(1) NOT NULL default 0');
    }
    if ($result && $oldversion < 2006072401) {
        $table = new XMLDBTable('wiki_pages');
        $field = new XMLDBField('votes');
        $result = drop_field($table, $field);
        // OLD VERSION
        //        execute_sql('ALTER TABLE `'.$CFG->prefix.'wiki_pages` DROP `votes`');
    }
    // correct version error
    if ($result && $oldversion == 2006271001) {
        $oldversion = 2006102701;
        $result = set_field('modules', 'version', '2006102701', 'name', 'wiki');
        // OLD SENTENCE
        //        execute_sql('UPDATE `'.$CFG->prefix.'modules` SET `version`= 2006102701 WHERE `name` = wiki');
    }
    if ($result && $oldversion < 2006112101) {
        $table = new XMLDBTable('wiki');
        $field = $table->findFieldInArray('editorrows');
        if (empty($field)) {
            $field = new XMLDBField('editorrows');
            $field->setAttributes(XMLDB_TYPE_INTEGER, '11', null, XMLDB_NOTNULL, null, null, null, '40', null);
            $result = add_field($table, $field);
        }
        $field = $table->findFieldInArray('editorcols');
        if (empty($field)) {
            $field = new XMLDBField('editorcols');
            $field->setAttributes(XMLDB_TYPE_INTEGER, '11', null, XMLDB_NOTNULL, null, null, null, '60', null);
            $result = $result && add_field($table, $field);
        }
        // OLD SENTENCES
        //        if (!get_records_sql('SHOW COLUMNS FROM '.$CFG->prefix.'wiki WHERE Field=\'editorrows\'')){
        //            execute_sql('ALTER TABLE `'.$CFG->prefix.'wiki` ADD `editorrows` integer NOT NULL DEFAULT 40');
        //        }
        //
        //        if (!get_records_sql('SHOW COLUMNS FROM '.$CFG->prefix.'wiki WHERE Field=\'editorcols\'')){
        //            execute_sql('ALTER TABLE `'.$CFG->prefix.'wiki` ADD `editorcols` integer NOT NULL DEFAULT 60');
        //        }
    }
    if ($result && $oldversion < 2006112502) {
        $table = new XMLDBTable('wiki');
        $field = new XMLDBField('wikicourse');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', null);
        $result = add_field($table, $field);
        // OLD SENTENCE
        //      execute_sql('ALTER TABLE `'.$CFG->prefix.'wiki` ADD `wikicourse` int(10) unsigned NOT NULL DEFAULT 0');
        if ($wikicourses = get_records('course', 'format', 'wiki')) {
            $wikimod = get_record('modules', 'name', 'wiki');
            foreach ($wikicourses as $wikicourse) {
                $min = get_record_select('course_module', 'course = ' . $wikicourse->id . ' AND module = ' . $wikimod->id, 'min(id) as minim');
                // OLD SENTENCE
                //              $min = get_record_sql('SELECT MIN(`id`) AS minim FROM '.$CFG->prefix.'course_modules WHERE `course`=\''.$wikicourse->id.'\' AND `module`=\''.$wikimod->id.'\'');
                $cm = get_record('course_modules', 'id', $min->minim);
                $result = $result && set_field('wiki', 'wikicourse', $wikicourse->id, 'id', $cm->instance);
            }
        }
    }
    if ($result && $oldversion < 2007022707) {
        // Moving archives to the new directory (from dfwikiX to wikiX)
        require_once $CFG->dirroot . '/lib/uploadlib.php';
        require_once $CFG->dirroot . '/backup/lib.php';
        $wikimod = get_record("modules", "name", "wiki");
        $wikis = get_records("wiki");
        if (!empty($wikis)) {
            foreach ($wikis as $wiki) {
                $cm = get_record("course_modules", "course", $wiki->course, "instance", $wiki->id, "module", $wikimod->id);
                if (check_dir_exists($CFG->dataroot . "/" . $wiki->course . "/moddata/dfwiki" . $cm->id)) {
                    check_dir_exists($CFG->dataroot . "/" . $wiki->course . "/moddata/wiki" . $cm->id, true, true);
                    $flist = list_directories_and_files($CFG->dataroot . "/" . $wiki->course . "/moddata/dfwiki" . $cm->id);
                    foreach ($flist as $file) {
                        $result = $result && copy($CFG->dataroot . "/" . $wiki->course . "/moddata/dfwiki" . $cm->id . "/" . $file, $CFG->dataroot . "/" . $wiki->course . "/moddata/wiki" . $cm->id . "/" . $file);
                    }
                    $result = $result && remove_dir($CFG->dataroot . "/" . $wiki->course . "/moddata/dfwiki" . $cm->id);
                }
            }
        }
    }
    if ($result && $oldversion < 2007030301) {
        // Adding filetemplate file to database
        $table = new XMLDBTable('wiki');
        $field = new XMLDBField('filetemplate');
        $field->setAttributes(XMLDB_TYPE_CHAR, '60', null, null, null, null, null, null, null);
        $result = add_field($table, $field);
        // OLD SENTENCE
        //      execute_sql('ALTER TABLE `'.$CFG->prefix.'wiki` ADD `filetemplate` VARCHAR(60) NULL DEFAULT NULL');
    }
    if ($result && $oldversion < 2007060701) {
        $table = new XMLDBTable('wiki_locks');
        if (!table_exists($table)) {
            // Adding wiki_locks table to admin wiki pages lock system
            $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
            $table->addFieldInfo('wikiid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
            $table->addFieldInfo('pagename', XMLDB_TYPE_CHAR, '160', null, XMLDB_NOTNULL, null, null, '', null);
            $table->addFieldInfo('lockedby', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null, 0, null);
            $table->addFieldInfo('lockedsince', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null, '0', null);
            $table->addFieldInfo('lockedseen', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null, '0', null);
            $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
            $table->addKeyInfo('wiki_locks_uk', XMLDB_KEY_UNIQUE, array('wikiid', 'pagename'));
            $table->addIndexInfo('wiki_locks_ix', XMLDB_INDEX_NOTUNIQUE, array('lockedseen'));
            $result = $result && create_table($table);
        }
        // OLD SENTENCE
        //		modify_database("","
        //			CREATE TABLE prefix_wiki_locks
        //			(
        //			  id INT(10) UNSIGNED NOT NULL AUTO_INCREMENT,
        //			  wikiid INT(10) UNSIGNED NOT NULL,
        //			  pagename VARCHAR(160) NOT NULL DEFAULT '',
        //			  lockedby INT(10) NOT NULL DEFAULT 0,
        //			  lockedsince INT(10) NOT NULL DEFAULT 0,
        //			  lockedseen INT(10) NOT NULL DEFAULT 0,
        //			  PRIMARY KEY(id),
        //			  UNIQUE INDEX wiki_locks_uk(wikiid,pagename),
        //			  INDEX wiki_locks_ix(lockedseen)
        //			);");
    }
    if ($result && $oldversion < 2007072301) {
        ////////////////////////////
        // Fixing some old errors //
        ////////////////////////////
        // Old mysql.php created this field as intergers: int(11)
        // They must be smallint(3)
        //
        // I'm going to change defaults too.
        $table = new XMLDBTable('wiki');
        $field = new XMLDBField('editorrows');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '3', null, XMLDB_NOTNULL, null, null, null, '30', null);
        $result = change_field_precision($table, $field);
        $result = $result && change_field_default($table, $field);
        $field = new XMLDBField('editorcols');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '3', null, XMLDB_NOTNULL, null, null, null, '120', null);
        $result = $result && change_field_precision($table, $field);
        $result = $result && change_field_default($table, $field);
        // Changing wikicourse to bigint
        $field = new XMLDBField('wikicourse');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', null);
        if (!field_exists($table, $field)) {
            $result = $result && add_field($table, $field);
        } else {
            $result = $result && change_field_precision($table, $field);
        }
        // Renaming key 'course'
        $key = new XMLDBIndex('course');
        $key->setAttributes(XMLDB_INDEX_UNIQUE, array('course'));
        $result = $result && drop_index($table, $key);
        $key = new XMLDBIndex('wiki_cou_ix');
        $key->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('course'));
        $result = $result && add_index($table, $key);
        /*	
        	// Changing some field in wiki_pages
        	$table = new XMLDBTable('wiki_pages');
        	$field = new XMLDBField('evaluation');
        	$field->setAttributes(XMLDB_TYPE_TEXT,'medium' , null, XMLDB_NOTNULL, null, null, null, "", 'ownerid');
        	$result = $result && change_field_default($table, $field);
        	$result = $result && change_field_notnull($table, $field);
        */
    }
    // Add groupid and ownerid fields to the wiki_locks table
    if ($result && $oldversion < 2007121701) {
        $table = new XMLDBTable('wiki_locks');
        $field = new XMLDBField('groupid');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null, null, 0, null);
        $result = add_field($table, $field);
        $field = new XMLDBField('ownerid');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, 0, null);
        $result = $result && add_field($table, $field);
    }
    if ($result && $oldversion < 2008013105) {
        // To create a new tables: wiki_evaluation and wiki_evaluation_edition
        /////////// WIKI_EVALUATION ////////////////////////////////
        $table = new XMLDBTable('wiki');
        $field = new XMLDBField('evaluation');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '3', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'studentdiscussion');
        $result = $result && add_field($table, $field);
        $field = new XMLDBField('notetype');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '3', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'evaluation');
        $result = $result && add_field($table, $field);
        /// Define field id to be added to wiki_evaluation
        $table = new XMLDBTable('wiki_evaluation');
        if (!table_exists($table)) {
            // Adding wiki_evaluation table
            $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null, null);
            $table->addFieldInfo('pagename', XMLDB_TYPE_CHAR, '160', null, XMLDB_NOTNULL, null, null, null, null, 'id');
            $table->addFieldInfo('wikiid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'pagename');
            $table->addFieldInfo('groupid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'wikiid');
            $table->addFieldInfo('ownerid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'groupid');
            $table->addFieldInfo('userid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'ownerid');
            $table->addFieldInfo('wikigrade', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null, 'userid');
            $table->addFieldInfo('wikigrade_initial', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null, 'wikigrade');
            $table->addFieldInfo('comment', XMLDB_TYPE_TEXT, 'medium', null, null, null, null, null, null, 'wikigrade_initial');
            $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
            $table->addKeyInfo('key_uinique', XMLDB_KEY_UNIQUE, array('pagename', 'wikiid', 'groupid', 'ownerid', 'userid'));
            $table->addKeyInfo('foreign_key_user', XMLDB_KEY_FOREIGN, array('userid'), 'user', array('id'));
            $result = $result && create_table($table);
        }
        /////////// WIKI_EVALUATION_EDITION ////////////////////////////////
        /// Define field id to be added to wiki_evaluation_edition
        $table = new XMLDBTable('wiki_evaluation_edition');
        if (!table_exists($table)) {
            // Adding wiki_evaluation table
            $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null, null);
            $table->addFieldInfo('wiki_pageid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null, 'id');
            $table->addFieldInfo('userid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'wiki_pageid');
            $table->addFieldInfo('valoration', XMLDB_TYPE_CHAR, '10', null, XMLDB_NOTNULL, null, null, null, null, 'userid');
            $table->addFieldInfo('feedback', XMLDB_TYPE_TEXT, 'medium', null, null, null, null, null, null, 'valoration');
            $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
            $table->addKeyInfo('key_unique_edition', XMLDB_KEY_UNIQUE, array('wiki_pageid', 'userid'));
            $table->addKeyInfo('foreign_key_user', XMLDB_KEY_FOREIGN, array('userid'), 'user', array('id'));
            $table->addKeyInfo('foreign_key_wikipage', XMLDB_KEY_FOREIGN, array('wiki_pageid'), 'wiki_pages', array('id'));
            /// Create the table wiki_evaluation_edition
            $result = $result && create_table($table);
        }
    }
    if ($result && $oldversion < 2008080401) {
        $table = new XMLDBTable('wiki');
        $field = new XMLDBField('evaluation');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '3', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'studentdiscussion');
        $result = $result && change_field_type($table, $field);
        $field = new XMLDBField('notetype');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '3', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'evaluation');
        $result = $result && change_field_type($table, $field);
    }
    return $result;
}
Esempio n. 13
0
/**
 * Execute changes made in ClassiPress 3.2.
 *
 * @since 3.2
 */
function cp_upgrade_320()
{
    global $wpdb, $app_abbr;
    if (get_option($app_abbr . '_admin_security') == 'install_themes') {
        update_option($app_abbr . '_admin_security', 'manage_options');
    }
    // remove old table indexes
    require_once ABSPATH . 'wp-admin/includes/upgrade.php';
    drop_index($wpdb->cp_ad_pop_daily, 'id');
    drop_index($wpdb->cp_ad_pop_total, 'id');
    update_option($app_abbr . '_db_version', '1320');
}
Esempio n. 14
0
function xmldb_main_upgrade($oldversion = 0)
{
    global $CFG, $THEME, $USER, $db;
    $result = true;
    if ($oldversion < 2006100401) {
        /// Only for those tracking Moodle 1.7 dev, others will have these dropped in moodle_install_roles()
        if (!empty($CFG->rolesactive)) {
            drop_table(new XMLDBTable('user_students'));
            drop_table(new XMLDBTable('user_teachers'));
            drop_table(new XMLDBTable('user_coursecreators'));
            drop_table(new XMLDBTable('user_admins'));
        }
    }
    if ($oldversion < 2006100601) {
        /// Disable the exercise module because it's unmaintained
        if ($module = get_record('modules', 'name', 'exercise')) {
            if ($module->visible) {
                // Hide/disable the module entry
                set_field('modules', 'visible', '0', 'id', $module->id);
                // Save existing visible state for all activities
                set_field('course_modules', 'visibleold', '1', 'visible', '1', 'module', $module->id);
                set_field('course_modules', 'visibleold', '0', 'visible', '0', 'module', $module->id);
                // Hide all activities
                set_field('course_modules', 'visible', '0', 'module', $module->id);
                require_once $CFG->dirroot . '/course/lib.php';
                rebuild_course_cache();
                // Rebuld cache for all modules because they might have changed
            }
        }
    }
    if ($oldversion < 2006101001) {
        /// Disable the LAMS module by default (if it is installed)
        if (count_records('modules', 'name', 'lams') && !count_records('lams')) {
            set_field('modules', 'visible', 0, 'name', 'lams');
            // Disable it by default
        }
    }
    if ($result && $oldversion < 2006102600) {
        /// Define fields to be added to user_info_field
        $table = new XMLDBTable('user_info_field');
        $field = new XMLDBField('description');
        $field->setAttributes(XMLDB_TYPE_TEXT, 'big', null, null, null, null, null, null, 'categoryid');
        $field1 = new XMLDBField('param1');
        $field1->setAttributes(XMLDB_TYPE_TEXT, 'big', null, null, null, null, null, null, 'defaultdata');
        $field2 = new XMLDBField('param2');
        $field2->setAttributes(XMLDB_TYPE_TEXT, 'big', null, null, null, null, null, null, 'param1');
        $field3 = new XMLDBField('param3');
        $field3->setAttributes(XMLDB_TYPE_TEXT, 'big', null, null, null, null, null, null, 'param2');
        $field4 = new XMLDBField('param4');
        $field4->setAttributes(XMLDB_TYPE_TEXT, 'big', null, null, null, null, null, null, 'param3');
        $field5 = new XMLDBField('param5');
        $field5->setAttributes(XMLDB_TYPE_TEXT, 'big', null, null, null, null, null, null, 'param4');
        /// Launch add fields
        $result = $result && add_field($table, $field);
        $result = $result && add_field($table, $field1);
        $result = $result && add_field($table, $field2);
        $result = $result && add_field($table, $field3);
        $result = $result && add_field($table, $field4);
        $result = $result && add_field($table, $field5);
    }
    if ($result && $oldversion < 2006112000) {
        /// Define field attachment to be added to post
        $table = new XMLDBTable('post');
        $field = new XMLDBField('attachment');
        $field->setAttributes(XMLDB_TYPE_CHAR, '100', null, null, null, null, null, null, 'format');
        /// Launch add field attachment
        $result = $result && add_field($table, $field);
    }
    if ($result && $oldversion < 2006112200) {
        /// Define field imagealt to be added to user
        $table = new XMLDBTable('user');
        $field = new XMLDBField('imagealt');
        $field->setAttributes(XMLDB_TYPE_CHAR, '255', null, null, null, null, null, null, 'trustbitmask');
        /// Launch add field imagealt
        $result = $result && add_field($table, $field);
        $table = new XMLDBTable('user');
        $field = new XMLDBField('screenreader');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '1', null, XMLDB_NOTNULL, null, null, null, '0', 'imagealt');
        /// Launch add field screenreader
        $result = $result && add_field($table, $field);
    }
    if ($oldversion < 2006120300) {
        /// Delete guest course section settings
        // following code can be executed repeatedly, such as when upgrading from 1.7.x - it is ok
        if ($guest = get_record('user', 'username', 'guest')) {
            execute_sql("DELETE FROM {$CFG->prefix}course_display where userid={$guest->id}", true);
        }
    }
    if ($oldversion < 2006120400) {
        /// Remove secureforms config setting
        execute_sql("DELETE FROM {$CFG->prefix}config where name='secureforms'", true);
    }
    if ($oldversion < 2006120700) {
        // add moodle/user:viewdetails to all roles!
        if ($roles = get_records('role')) {
            $context = get_context_instance(CONTEXT_SYSTEM);
            foreach ($roles as $roleid => $role) {
                assign_capability('moodle/user:viewdetails', CAP_ALLOW, $roleid, $context->id);
            }
        }
    }
    // Move the auth plugin settings into the config_plugin table
    if ($oldversion < 2007010300) {
        if ($CFG->auth == 'email') {
            set_config('registerauth', 'email');
        } else {
            set_config('registerauth', '');
        }
        $authplugins = get_list_of_plugins('auth');
        foreach ($CFG as $k => $v) {
            if (strpos($k, 'ldap_') === 0) {
                //upgrade nonstandard ldap settings
                $setting = substr($k, 5);
                if (set_config($setting, $v, "auth/ldap")) {
                    delete_records('config', 'name', $k);
                    unset($CFG->{$k});
                }
                continue;
            }
            if (strpos($k, 'auth_') !== 0) {
                continue;
            }
            $authsetting = substr($k, 5);
            foreach ($authplugins as $auth) {
                if (strpos($authsetting, $auth) !== 0) {
                    continue;
                }
                $setting = substr($authsetting, strlen($auth));
                if (set_config($setting, $v, "auth/{$auth}")) {
                    delete_records('config', 'name', $k);
                    unset($CFG->{$k});
                }
                break;
                // don't check the rest of the auth plugin names
            }
        }
    }
    if ($oldversion < 2007010301) {
        //
        // Core MNET tables
        //
        $table = new XMLDBTable('mnet_host');
        $table->comment = 'Information about the local and remote hosts for RPC';
        // fields
        $f = $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', false, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $f->comment = 'Unique Host ID';
        $f = $table->addFieldInfo('deleted', XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, 0);
        $f = $table->addFieldInfo('wwwroot', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, null, null);
        $f = $table->addFieldInfo('ip_address', XMLDB_TYPE_CHAR, '39', null, XMLDB_NOTNULL, null, null, null, null);
        $f = $table->addFieldInfo('name', XMLDB_TYPE_CHAR, '80', null, XMLDB_NOTNULL, null, null, null, null);
        $f = $table->addFieldInfo('public_key', XMLDB_TYPE_TEXT, 'medium', null, XMLDB_NOTNULL, null, null, null, null);
        $f = $table->addFieldInfo('public_key_expires', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, 0);
        $f = $table->addFieldInfo('transport', XMLDB_TYPE_INTEGER, '2', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, 0);
        $f = $table->addFieldInfo('portno', XMLDB_TYPE_INTEGER, '2', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, 0);
        $f = $table->addFieldInfo('last_connect_time', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, 0);
        $f = $table->addFieldInfo('last_log_id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, 0);
        // PK and indexes
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        // Create the table
        $result = $result && create_table($table);
        $table = new XMLDBTable('mnet_host2service');
        $table->comment = 'Information about the services for a given host';
        // fields
        $f = $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', false, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $f = $table->addFieldInfo('hostid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        $f = $table->addFieldInfo('serviceid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        $f = $table->addFieldInfo('publish', XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        $f = $table->addFieldInfo('subscribe', XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        // PK and indexes
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addIndexInfo('hostid_serviceid', XMLDB_INDEX_UNIQUE, array('hostid', 'serviceid'));
        // Create the table
        $result = $result && create_table($table);
        $table = new XMLDBTable('mnet_log');
        $table->comment = 'Store session data from users migrating to other sites';
        // fields
        $f = $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', false, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $f = $table->addFieldInfo('hostid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        $f = $table->addFieldInfo('remoteid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        $f = $table->addFieldInfo('time', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        $f = $table->addFieldInfo('userid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        $f = $table->addFieldInfo('ip', XMLDB_TYPE_CHAR, '15', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('course', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        $f = $table->addFieldInfo('coursename', XMLDB_TYPE_CHAR, '40', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('module', XMLDB_TYPE_CHAR, '20', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('cmid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        $f = $table->addFieldInfo('action', XMLDB_TYPE_CHAR, '40', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('url', XMLDB_TYPE_CHAR, '100', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('info', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, NULL, null, null, null);
        // PK and indexes
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addIndexInfo('host_user_course', XMLDB_INDEX_NOTUNIQUE, array('hostid', 'userid', 'course'));
        // Create the table
        $result = $result && create_table($table);
        $table = new XMLDBTable('mnet_rpc');
        $table->comment = 'Functions or methods that we may publish or subscribe to';
        // fields
        $f = $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', false, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $f = $table->addFieldInfo('function_name', XMLDB_TYPE_CHAR, '40', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('xmlrpc_path', XMLDB_TYPE_CHAR, '80', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('parent_type', XMLDB_TYPE_CHAR, '6', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('parent', XMLDB_TYPE_CHAR, '20', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('enabled', XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        $f = $table->addFieldInfo('help', XMLDB_TYPE_TEXT, 'medium', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('profile', XMLDB_TYPE_TEXT, 'medium', null, XMLDB_NOTNULL, NULL, null, null, null);
        // PK and indexes
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addIndexInfo('enabled_xpath', XMLDB_INDEX_NOTUNIQUE, array('enabled', 'xmlrpc_path'));
        // Create the table
        $result = $result && create_table($table);
        $table = new XMLDBTable('mnet_service');
        $table->comment = 'A service is a group of functions';
        // fields
        $f = $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', false, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $f = $table->addFieldInfo('name', XMLDB_TYPE_CHAR, '40', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('description', XMLDB_TYPE_CHAR, '40', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('apiversion', XMLDB_TYPE_CHAR, '10', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('offer', XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        // PK and indexes
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        // Create the table
        $result = $result && create_table($table);
        $table = new XMLDBTable('mnet_service2rpc');
        $table->comment = 'Group functions or methods under a service';
        // fields
        $f = $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', false, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $f = $table->addFieldInfo('serviceid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        $f = $table->addFieldInfo('rpcid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        // PK and indexes
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addIndexInfo('unique', XMLDB_INDEX_UNIQUE, array('rpcid', 'serviceid'));
        // Create the table
        $result = $result && create_table($table);
        //
        // Prime MNET configuration entries -- will be needed later by auth/mnet
        //
        include_once $CFG->dirroot . '/mnet/lib.php';
        $env = new mnet_environment();
        $env->init();
        unset($env);
        // add mnethostid to user-
        $table = new XMLDBTable('user');
        $field = new XMLDBField('mnethostid');
        $field->setType(XMLDB_TYPE_INTEGER);
        $field->setLength(10);
        $field->setNotNull(true);
        $field->setSequence(null);
        $field->setEnum(null);
        $field->setDefault('0');
        $field->setPrevious("deleted");
        $field->setNext("username");
        $result = $result && add_field($table, $field);
        // The default mnethostid is zero... we need to update this for all
        // users of the local IdP service.
        set_field('user', 'mnethostid', $CFG->mnet_localhost_id, 'mnethostid', '0');
        $index = new XMLDBIndex('username');
        $index->setUnique(true);
        $index->setFields(array('username'));
        drop_index($table, $index);
        $index->setFields(array('mnethostid', 'username'));
        if (!add_index($table, $index)) {
            notify(get_string('duplicate_usernames', 'mnet', 'http://docs.moodle.org/en/DuplicateUsernames'));
        }
        unset($table, $field, $index);
        /**
         ** auth/mnet tables
         **/
        $table = new XMLDBTable('mnet_session');
        $table->comment = 'Store session data from users migrating to other sites';
        // fields
        $f = $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', false, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $f = $table->addFieldInfo('userid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        $f = $table->addFieldInfo('username', XMLDB_TYPE_CHAR, '100', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('token', XMLDB_TYPE_CHAR, '40', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('mnethostid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        $f = $table->addFieldInfo('useragent', XMLDB_TYPE_CHAR, '40', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('confirm_timeout', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        $f = $table->addFieldInfo('session_id', XMLDB_TYPE_CHAR, '40', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('expires', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        // PK and indexes
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addIndexInfo('token', XMLDB_INDEX_UNIQUE, array('token'));
        // Create the table
        $result = $result && create_table($table);
        $table = new XMLDBTable('mnet_sso_access_control');
        $table->comment = 'Users by host permitted (or not) to login from a remote provider';
        $f = $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', false, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $f = $table->addFieldInfo('username', XMLDB_TYPE_CHAR, '100', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('mnet_host_id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        $f = $table->addFieldInfo('access', XMLDB_TYPE_CHAR, '20', null, XMLDB_NOTNULL, NULL, null, null, 'allow');
        // PK and indexes
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addIndexInfo('mnethostid_username', XMLDB_INDEX_UNIQUE, array('mnet_host_id', 'username'));
        // Create the table
        $result = $result && create_table($table);
        if (empty($USER->mnet_host_id)) {
            $USER->mnet_host_id = $CFG->mnet_localhost_id;
            // Something for the current user to prevent warnings
        }
        /**
         ** enrol/mnet tables
         **/
        $table = new XMLDBTable('mnet_enrol_course');
        $table->comment = 'Information about courses on remote hosts';
        $f = $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', false, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $f = $table->addFieldInfo('hostid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        $f = $table->addFieldInfo('remoteid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        $f = $table->addFieldInfo('cat_id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        $f = $table->addFieldInfo('cat_name', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('cat_description', XMLDB_TYPE_TEXT, 'medium', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('sortorder', XMLDB_TYPE_INTEGER, '4', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        $f = $table->addFieldInfo('fullname', XMLDB_TYPE_CHAR, '254', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('shortname', XMLDB_TYPE_CHAR, '15', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('idnumber', XMLDB_TYPE_CHAR, '100', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('summary', XMLDB_TYPE_TEXT, 'medium', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('startdate', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        $f = $table->addFieldInfo('cost', XMLDB_TYPE_CHAR, '10', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('currency', XMLDB_TYPE_CHAR, '3', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('defaultroleid', XMLDB_TYPE_INTEGER, '4', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        $f = $table->addFieldInfo('defaultrolename', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, NULL, null, null, null);
        // PK and indexes
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addIndexInfo('hostid_remoteid', XMLDB_INDEX_UNIQUE, array('hostid', 'remoteid'));
        // Create the table
        $result = $result && create_table($table);
        $table = new XMLDBTable('mnet_enrol_assignments');
        $table->comment = 'Information about enrolments on courses on remote hosts';
        $f = $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', false, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $f = $table->addFieldInfo('userid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        $f = $table->addFieldInfo('hostid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        $f = $table->addFieldInfo('courseid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        $f = $table->addFieldInfo('rolename', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('enroltime', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        $f = $table->addFieldInfo('enroltype', XMLDB_TYPE_CHAR, '20', null, XMLDB_NOTNULL, NULL, null, null, null);
        // PK and indexes
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addIndexInfo('hostid_courseid', XMLDB_INDEX_NOTUNIQUE, array('hostid', 'courseid'));
        $table->addIndexInfo('userid', XMLDB_INDEX_NOTUNIQUE, array('userid'));
        // Create the table
        $result = $result && create_table($table);
    }
    if ($result && $oldversion < 2007010404) {
        /// Define field shortname to be added to user_info_field
        $table = new XMLDBTable('user_info_field');
        $field = new XMLDBField('shortname');
        $field->setAttributes(XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, null, 'shortname', 'id');
        /// Launch add field shortname
        $result = $result && add_field($table, $field);
        /// Changing type of field name on table user_info_field to text
        $table = new XMLDBTable('user_info_field');
        $field = new XMLDBField('name');
        $field->setAttributes(XMLDB_TYPE_TEXT, 'big', null, XMLDB_NOTNULL, null, null, null, null, 'shortname');
        /// Launch change of type for field name
        $result = $result && change_field_type($table, $field);
        /// For existing fields use 'name' as the 'shortname' entry
        if ($fields = get_records_select('user_info_field', '', '', 'id, name')) {
            foreach ($fields as $field) {
                $field->shortname = clean_param($field->name, PARAM_ALPHANUM);
                $result && update_record('user_info_field', $field);
            }
        }
    }
    if ($result && $oldversion < 2007011200) {
        /// Define table context_rel to be created
        $table = new XMLDBTable('context_rel');
        /// Adding fields to table context_rel
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('c1', XMLDB_TYPE_INTEGER, '10', null, null, null, null, null, null);
        $table->addFieldInfo('c2', XMLDB_TYPE_INTEGER, '10', null, null, null, null, null, null);
        /// Adding keys to table context_rel
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addKeyInfo('c1', XMLDB_KEY_FOREIGN, array('c1'), 'context', array('id'));
        $table->addKeyInfo('c2', XMLDB_KEY_FOREIGN, array('c2'), 'context', array('id'));
        $table->addKeyInfo('c1c2', XMLDB_KEY_UNIQUE, array('c1', 'c2'));
        /// Launch create table for context_rel
        $result = $result && create_table($table);
        /// code here to fill the context_rel table
        /// use get record set to iterate slower
        build_context_rel();
    }
    if ($result && $oldversion < 2007011501) {
        if (!empty($CFG->enablerecordcache) && empty($CFG->rcache) && empty($CFG->cachetype) && empty($CFG->intcachemax)) {
            set_config('cachetype', 'internal');
            set_config('rcache', true);
            set_config('intcachemax', $CFG->enablerecordcache);
            unset_config('enablerecordcache');
            unset($CFG->enablerecordcache);
        }
    }
    if ($result && $oldversion < 2007012100) {
        /// Some old PG servers have user->firstname & user->lastname with 30cc. They must be 100cc.
        /// Fixing that conditionally. MDL-7110
        if ($CFG->dbfamily == 'postgres') {
            /// Get Metadata from user table
            $cols = array_change_key_case($db->MetaColumns($CFG->prefix . 'user'), CASE_LOWER);
            /// Process user->firstname if needed
            if ($col = $cols['firstname']) {
                if ($col->max_length < 100) {
                    /// Changing precision of field firstname on table user to (100)
                    $table = new XMLDBTable('user');
                    $field = new XMLDBField('firstname');
                    $field->setAttributes(XMLDB_TYPE_CHAR, '100', null, XMLDB_NOTNULL, null, null, null, null, 'idnumber');
                    /// Launch change of precision for field firstname
                    $result = $result && change_field_precision($table, $field);
                }
            }
            /// Process user->lastname if needed
            if ($col = $cols['lastname']) {
                if ($col->max_length < 100) {
                    /// Changing precision of field lastname on table user to (100)
                    $table = new XMLDBTable('user');
                    $field = new XMLDBField('lastname');
                    $field->setAttributes(XMLDB_TYPE_CHAR, '100', null, XMLDB_NOTNULL, null, null, null, null, 'firstname');
                    /// Launch change of precision for field lastname
                    $result = $result && change_field_precision($table, $field);
                }
            }
        }
    }
    if ($result && $oldversion < 2007012101) {
        /// Changing precision of field lang on table course to (30)
        $table = new XMLDBTable('course');
        $field = new XMLDBField('lang');
        $field->setAttributes(XMLDB_TYPE_CHAR, '30', null, XMLDB_NOTNULL, null, null, null, null, 'groupmodeforce');
        /// Launch change of precision for field course->lang
        $result = $result && change_field_precision($table, $field);
        /// Changing precision of field lang on table user to (30)
        $table = new XMLDBTable('user');
        $field = new XMLDBField('lang');
        $field->setAttributes(XMLDB_TYPE_CHAR, '30', null, XMLDB_NOTNULL, null, null, null, 'en', 'country');
        /// Launch change of precision for field user->lang
        $result = $result && change_field_precision($table, $field);
    }
    if ($result && $oldversion < 2007012400) {
        /// Rename field access on table mnet_sso_access_control to accessctrl
        $table = new XMLDBTable('mnet_sso_access_control');
        $field = new XMLDBField('access');
        $field->setAttributes(XMLDB_TYPE_CHAR, '20', null, XMLDB_NOTNULL, null, null, null, 'allow', 'mnet_host_id');
        /// Launch rename field accessctrl
        $result = $result && rename_field($table, $field, 'accessctrl');
    }
    if ($result && $oldversion < 2007012500) {
        execute_sql("DELETE FROM {$CFG->prefix}user WHERE username='******'", true);
    }
    if ($result && $oldversion < 2007020400) {
        /// Only for MySQL and PG, declare the user->ajax field as not null. MDL-8421.
        if ($CFG->dbfamily == 'mysql' || $CFG->dbfamily == 'postgres') {
            /// Changing nullability of field ajax on table user to not null
            $table = new XMLDBTable('user');
            $field = new XMLDBField('ajax');
            $field->setAttributes(XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '1', 'htmleditor');
            /// Launch change of nullability for field ajax
            $result = $result && change_field_notnull($table, $field);
        }
    }
    if (!empty($CFG->rolesactive) && $result && $oldversion < 2007021401) {
        /// create default logged in user role if not present - upgrade rom 1.7.x
        if (empty($CFG->defaultuserroleid) or empty($CFG->guestroleid) or $CFG->defaultuserroleid == $CFG->guestroleid) {
            if (!get_records('role', 'shortname', 'user')) {
                $userroleid = create_role(addslashes(get_string('authenticateduser')), 'user', addslashes(get_string('authenticateduserdescription')), 'moodle/legacy:user');
                if ($userroleid) {
                    reset_role_capabilities($userroleid);
                    set_config('defaultuserroleid', $userroleid);
                }
            }
        }
    }
    if ($result && $oldversion < 2007021501) {
        /// delete removed setting from config
        unset_config('tabselectedtofront');
    }
    /* Changes to the custom profile menu type - store values rather than indices.
       We could do all this with one tricky SQL statement but it's a one-off so no
       harm in using PHP loops */
    if ($result && $oldversion < 2007021503) {
        /// Get the menu fields
        if ($fields = get_records('user_info_field', 'datatype', 'menu')) {
            foreach ($fields as $field) {
                /// Get user data for the menu field
                if ($data = get_records('user_info_data', 'fieldid', $field->id)) {
                    /// Get the menu options
                    $options = explode("\n", $field->param1);
                    foreach ($data as $d) {
                        $key = array_search($d->data, $options);
                        /// If the data is an integer and is not one of the options,
                        /// set the respective option value
                        if (is_int($d->data) and ($key === NULL or $key === false) and isset($options[$d->data])) {
                            $d->data = $options[$d->data];
                            $result = $result && update_record('user_info_data', $d);
                        }
                    }
                }
            }
        }
    }
    if ($result && $oldversion < 2007021504) {
        if (empty($CFG->enablegroupings) and !empty($CFG->group_version)) {
            // delete all groupings - they do not work yet :-(
            // while keeping all existing groups
            require_once "{$CFG->dirroot}/group/db/upgrade.php";
            undo_groupings();
        }
    }
    if ($result && $oldversion < 2007021505) {
        //  Get the role id of the "Auth. User" role and check if the default role id is different
        $userrole = get_record('role', 'shortname', 'user');
        $defaultroleid = $CFG->defaultuserroleid;
        if ($defaultroleid != $userrole->id) {
            //  Add in the new moodle/my:manageblocks capibility to the default user role
            $context = get_context_instance(CONTEXT_SYSTEM, SITEID);
            assign_capability('moodle/my:manageblocks', CAP_ALLOW, $defaultroleid, $context->id);
        }
    }
    if ($result && $oldversion < 2007021511) {
        // Small update of guest user to be 100% sure it has the correct mnethostid (MDL-10375)
        set_field('user', 'mnethostid', $CFG->mnet_localhost_id, 'username', 'guest');
    }
    if ($result && $oldversion < 2007021532) {
        // Get list of users by browsing moodledata/user
        $oldusersdir = $CFG->dataroot . '/users';
        $folders = get_directory_list($oldusersdir, '', false, true, false);
        foreach ($folders as $userid) {
            $olddir = $oldusersdir . '/' . $userid;
            $files = get_directory_list($olddir);
            if (empty($files)) {
                continue;
            }
            // Create new user directory
            if (!($newdir = make_user_directory($userid))) {
                $result = false;
                break;
            }
            // Move contents of old directory to new one
            if (file_exists($olddir) && file_exists($newdir)) {
                foreach ($files as $file) {
                    copy($olddir . '/' . $file, $newdir . '/' . $file);
                }
            } else {
                notify("Could not move the contents of {$olddir} into {$newdir}!");
                $result = false;
                break;
            }
        }
        // Leave a README in old users directory
        $readmefilename = $oldusersdir . '/README.txt';
        if ($handle = fopen($readmefilename, 'w+b')) {
            if (!fwrite($handle, get_string('olduserdirectory'))) {
                // Could not write to the readme file. No cause for huge concern
                notify("Could not write to the README.txt file in {$readmefilename}.");
            }
            fclose($handle);
        } else {
            // Could not create the readme file. No cause for huge concern
            notify("Could not create the README.txt file in {$readmefilename}.");
        }
    }
    if ($result && $oldversion < 2007021534) {
        /// Changing precision of field dst_time on table timezone to (6)
        $table = new XMLDBTable('timezone');
        $field = new XMLDBField('dst_time');
        $field->setAttributes(XMLDB_TYPE_CHAR, '6', null, XMLDB_NOTNULL, null, null, null, '00:00', 'dst_skipweeks');
        /// Launch change of precision for field dst_time
        $result = $result && change_field_precision($table, $field);
        /// Changing precision of field std_time on table timezone to (6)
        $table = new XMLDBTable('timezone');
        $field = new XMLDBField('std_time');
        $field->setAttributes(XMLDB_TYPE_CHAR, '6', null, XMLDB_NOTNULL, null, null, null, '00:00', 'std_skipweeks');
        /// Launch change of precision for field std_time
        $result = $result && change_field_precision($table, $field);
    }
    if ($result && $oldversion < 2007021541) {
        $db->debug = false;
        notify('Updating country list according to recent official ISO listing...', 'notifysuccess');
        // re-assign users to valid countries
        set_field('user', 'country', 'CD', 'country', 'ZR');
        // Zaire is now Congo Democratique
        set_field('user', 'country', 'TL', 'country', 'TP');
        // Timor has changed
        set_field('user', 'country', 'FR', 'country', 'FX');
        // France metropolitaine doesn't exist
        set_field('user', 'country', 'RS', 'country', 'KO');
        // Kosovo is part of Serbia, "under the auspices of the United Nations, pursuant to UN Security Council Resolution 1244 of 10 June 1999."
        set_field('user', 'country', 'GB', 'country', 'WA');
        // Wales is part of UK (ie Great Britain)
        set_field('user', 'country', 'RS', 'country', 'CS');
        // Re-assign Serbia-Montenegro to Serbia.  This is arbitrary, but there is no way to make an automatic decision on this.
        notify('...update complete. Remember to update your language packs to get the most recent country names definitions and codes.  This is especially important for sites with users from Congo (now CD), Timor (now TL), Kosovo (now RS), Wales (now GB), Serbia (RS) and Montenegro (ME).  Users based in Montenegro (ME) will need to manually update their profile.', 'notifysuccess');
        $db->debug = true;
    }
    if ($result && $oldversion < 2007021581) {
        require_once "{$CFG->dirroot}/filter/tex/lib.php";
        filter_tex_updatedcallback(null);
    }
    return $result;
}
function xmldb_stampcoll_upgrade($oldversion = 0)
{
    global $CFG, $THEME, $db;
    $result = true;
    if ($result && $oldversion < 2008021900) {
        /// CONTRIB-288 Drop field "publish" from the table "stampcoll" and controll the access by capabilities
        if ($collections = get_records('stampcoll', 'publish', '0')) {
            // collections with publish set to STAMPCOLL_PUBLISH_NONE - prevent displaying from legacy:students
            foreach ($collections as $collection) {
                if ($cm = get_coursemodule_from_instance('stampcoll', $collection->id)) {
                    $context = get_context_instance(CONTEXT_MODULE, $cm->id);
                    // find all roles with legacy:student
                    if ($studentroles = get_roles_with_capability('moodle/legacy:student', CAP_ALLOW)) {
                        foreach ($studentroles as $studentrole) {
                            // prevent students from viewing own stamps
                            assign_capability('mod/stampcoll:viewownstamps', CAP_PREVENT, $studentrole->id, $context->id);
                        }
                    }
                }
            }
        }
        if ($collections = get_records('stampcoll', 'publish', '2')) {
            // collections with publish set to STAMPCOLL_PUBLISH_ALL - allow legacy:students to view others' stamps
            foreach ($collections as $collection) {
                if ($cm = get_coursemodule_from_instance('stampcoll', $collection->id)) {
                    $context = get_context_instance(CONTEXT_MODULE, $cm->id);
                    // find all roles with legacy:student
                    if ($studentroles = get_roles_with_capability('moodle/legacy:student', CAP_ALLOW)) {
                        foreach ($studentroles as $studentrole) {
                            // allow students to view others' stamps
                            assign_capability('mod/stampcoll:viewotherstamps', CAP_ALLOW, $studentrole->id, $context->id);
                        }
                    }
                }
            }
        }
        $table = new XMLDBTable('stampcoll');
        $field = new XMLDBField('publish');
        $result = $result && drop_field($table, $field);
        /// CONTRIB-289 Drop field "teachercancollect" in the table "mdl_stampcoll"
        if ($collections = get_records('stampcoll', 'teachercancollect', '1')) {
            // collections which allow teachers to collect stamps
            foreach ($collections as $collection) {
                if ($cm = get_coursemodule_from_instance('stampcoll', $collection->id)) {
                    $context = get_context_instance(CONTEXT_MODULE, $cm->id);
                    // find all roles with legacy:teacher and legacy:editingteacher
                    // and allow them to collect stamps
                    if ($teacherroles = get_roles_with_capability('moodle/legacy:teacher', CAP_ALLOW)) {
                        foreach ($teacherroles as $teacherrole) {
                            assign_capability('mod/stampcoll:collectstamps', CAP_ALLOW, $teacherrole->id, $context->id);
                        }
                    }
                    if ($teacherroles = get_roles_with_capability('moodle/legacy:editingteacher', CAP_ALLOW)) {
                        foreach ($teacherroles as $teacherrole) {
                            assign_capability('mod/stampcoll:collectstamps', CAP_ALLOW, $teacherrole->id, $context->id);
                        }
                    }
                }
            }
        }
        $table = new XMLDBTable('stampcoll');
        $field = new XMLDBField('teachercancollect');
        $result = $result && drop_field($table, $field);
    }
    if ($result && $oldversion < 2008022002) {
        /// Define field anonymous to be added to stampcoll
        $table = new XMLDBTable('stampcoll');
        $field = new XMLDBField('anonymous');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'displayzero');
        $result = $result && add_field($table, $field);
        /// Rename field comment on table stampcoll_stamps to text
        $table = new XMLDBTable('stampcoll_stamps');
        $field = new XMLDBField('comment');
        $field->setAttributes(XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, null, null, 'userid');
        $result = $result && rename_field($table, $field, 'text');
        /// Define field giver to be added to stampcoll_stamps
        $table = new XMLDBTable('stampcoll_stamps');
        $field = new XMLDBField('giver');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'userid');
        $result = $result && add_field($table, $field);
        /// Define key mdl_stampcoll_id_idx (unique) to be dropped form stampcoll
        $table = new XMLDBTable('stampcoll');
        $key = new XMLDBKey('mdl_stampcoll_id_idx');
        $key->setAttributes(XMLDB_KEY_UNIQUE, array('id'));
        $result = $result && drop_key($table, $key);
        /// Define index mdl_stampcoll_course_idx (not unique) to be dropped form stampcoll
        $table = new XMLDBTable('stampcoll');
        $index = new XMLDBIndex('mdl_stampcoll_course_idx');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('course'));
        $result = $result && drop_index($table, $index);
        /// Define index course (not unique) to be added to stampcoll
        $table = new XMLDBTable('stampcoll');
        $index = new XMLDBIndex('course');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('course'));
        $result = $result && add_index($table, $index);
        /// Define index mdl_stampcoll_stamps_userid_idx (not unique) to be dropped form stampcoll_stamps
        $table = new XMLDBTable('stampcoll_stamps');
        $index = new XMLDBIndex('mdl_stampcoll_stamps_userid_idx');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('userid'));
        $result = $result && drop_index($table, $index);
        /// Define index mdl_stampcoll_stamps_stampcollid_idx (not unique) to be dropped form stampcoll_stamps
        $table = new XMLDBTable('stampcoll_stamps');
        $index = new XMLDBIndex('mdl_stampcoll_stamps_stampcollid_idx');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('stampcollid'));
        $result = $result && drop_index($table, $index);
        /// Define index userid (not unique) to be added to stampcoll_stamps
        $table = new XMLDBTable('stampcoll_stamps');
        $index = new XMLDBIndex('userid');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('userid'));
        /// Launch add index userid
        $result = $result && add_index($table, $index);
        /// Define index giver (not unique) to be added to stampcoll_stamps
        $table = new XMLDBTable('stampcoll_stamps');
        $index = new XMLDBIndex('giver');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('giver'));
        /// Launch add index giver
        $result = $result && add_index($table, $index);
        /// Define key mdl_stampcoll_stamps_id_idx (unique) to be dropped form stampcoll_stamps
        $table = new XMLDBTable('stampcoll_stamps');
        $key = new XMLDBKey('mdl_stampcoll_stamps_id_idx');
        $key->setAttributes(XMLDB_KEY_UNIQUE, array('id'));
        /// Launch drop key mdl_stampcoll_stamps_id_idx
        $result = $result && drop_key($table, $key);
        /// Define key stampcollid (foreign) to be added to stampcoll_stamps
        $table = new XMLDBTable('stampcoll_stamps');
        $key = new XMLDBKey('stampcollid');
        $key->setAttributes(XMLDB_KEY_FOREIGN, array('stampcollid'), 'stampcoll', array('id'));
        /// Launch add key stampcollid
        $result = $result && add_key($table, $key);
    }
    return $result;
}
Esempio n. 16
0
    }
}
// setup $s_tables[] and $s_fields[] if necessary
if ($s_connected == TRUE && $s_tables_valid == FALSE) {
    include_once './inc/get_tables.inc.php';
    if (get_tables()) {
        $s_tables_valid = TRUE;
    }
}
//
// deleting of a subject is confirmed
//
if (isset($_POST['confirm_yes'])) {
    switch ($_POST['confirm_subject']) {
        case 'index':
            drop_index($s_confirmations['index']['obj']);
            break;
        case 'trigger':
            drop_trigger($s_confirmations['trigger']['obj']);
            break;
        case 'domain':
            drop_domain($s_confirmations['domain']['obj']);
            break;
        case 'generator':
            drop_generator($s_confirmations['generator']['obj']);
            break;
        case 'procedure':
            drop_procedure($s_confirmations['procedure']['obj']);
            break;
        case 'view':
            drop_view($s_confirmations['view']['obj']);
Esempio n. 17
0
/**
 * Execute changes made in ClassiPress 3.3.2.
 *
 * @since 3.3.2
 */
function cp_upgrade_332()
{
    global $wpdb;
    // remove old table index
    require_once ABSPATH . 'wp-admin/includes/upgrade.php';
    drop_index($wpdb->cp_ad_geocodes, 'id');
    // drop 'category' and 'id' columns from geocodes table
    $wpdb->query("ALTER TABLE {$wpdb->cp_ad_geocodes} DROP COLUMN category");
    $wpdb->query("ALTER TABLE {$wpdb->cp_ad_geocodes} DROP COLUMN id");
    update_option('cp_db_version', '2103');
    // redirect to run dbDelta again, on first pass it fail to create index
    cp_js_redirect(admin_url('admin.php?page=app-settings&firstrun=1'), __('Continue Upgrading', APP_TD));
    exit;
}
function xmldb_attforblock_upgrade($oldversion = 0)
{
    global $CFG, $THEME, $db;
    $result = true;
    /// And upgrade begins here. For each one, you'll need one
    /// block of code similar to the next one. Please, delete
    /// this comment lines once this file start handling proper
    /// upgrade code.
    if ($result && $oldversion < 2008021904) {
        //New version in version.php
        global $USER;
        if ($sessions = get_records('attendance_sessions', 'takenby', 0)) {
            foreach ($sessions as $sess) {
                if (count_records('attendance_log', 'attsid', $sess->id) > 0) {
                    $sess->takenby = $USER->id;
                    $sess->timetaken = $sess->timemodified ? $sess->timemodified : time();
                    $sess->description = addslashes($sess->description);
                    $result = update_record('attendance_sessions', $sess) and $result;
                }
            }
        }
    }
    if ($oldversion < 2008102401 and $result) {
        $table = new XMLDBTable('attforblock');
        $field = new XMLDBField('grade');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null, null, '100', 'name');
        $result = $result && add_field($table, $field);
        $table = new XMLDBTable('attendance_sessions');
        $field = new XMLDBField('courseid');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'id');
        $result = $result && change_field_unsigned($table, $field);
        //        $field = new XMLDBField('creator');
        //        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'courseid');
        //        $result = $result && change_field_unsigned($table, $field);
        $field = new XMLDBField('sessdate');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'creator');
        $result = $result && change_field_unsigned($table, $field);
        $field = new XMLDBField('duration');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'sessdate');
        $result = $result && add_field($table, $field);
        $field = new XMLDBField('timetaken');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'takenby');
        $result = $result && change_field_unsigned($table, $field);
        $result = $result && rename_field($table, $field, 'lasttaken');
        $field = new XMLDBField('takenby');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'lasttaken');
        $result = $result && change_field_unsigned($table, $field);
        $result = $result && rename_field($table, $field, 'lasttakenby');
        $field = new XMLDBField('timemodified');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null, 'lasttaken');
        $result = $result && change_field_unsigned($table, $field);
        $table = new XMLDBTable('attendance_log');
        $field = new XMLDBField('attsid');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'id');
        $result = $result && change_field_unsigned($table, $field);
        $field = new XMLDBField('studentid');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'attsid');
        $result = $result && change_field_unsigned($table, $field);
        $field = new XMLDBField('statusid');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'status');
        $result = $result && add_field($table, $field);
        $field = new XMLDBField('statusset');
        $field->setAttributes(XMLDB_TYPE_CHAR, '100', null, null, null, null, null, null, 'statusid');
        $result = $result && add_field($table, $field);
        $field = new XMLDBField('timetaken');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'statusid');
        $result = $result && add_field($table, $field);
        $field = new XMLDBField('takenby');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'timetaken');
        $result = $result && add_field($table, $field);
        //Indexes
        $index = new XMLDBIndex('statusid');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('statusid'));
        $result = $result && add_index($table, $index);
        $index = new XMLDBIndex('attsid');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('attsid'));
        $result = $result && drop_index($table, $index);
        $field = new XMLDBField('attsid');
        //Rename field
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'id');
        $result = $result && rename_field($table, $field, 'sessionid');
        $index = new XMLDBIndex('sessionid');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('sessionid'));
        $result = $result && add_index($table, $index);
        $table = new XMLDBTable('attendance_settings');
        $field = new XMLDBField('courseid');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'id');
        $result = $result && change_field_unsigned($table, $field);
        $field = new XMLDBField('visible');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '1', 'grade');
        $result = $result && add_field($table, $field);
        $field = new XMLDBField('deleted');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'visible');
        $result = $result && add_field($table, $field);
        //Indexes
        $index = new XMLDBIndex('visible');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('visible'));
        $result = $result && add_index($table, $index);
        $index = new XMLDBIndex('deleted');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('deleted'));
        $result = $result && add_index($table, $index);
        $result = $result && rename_table($table, 'attendance_statuses');
    }
    if ($oldversion < 2008102406 and $result) {
        if ($courses = get_records_sql("SELECT courseid FROM {$CFG->prefix}attendance_sessions GROUP BY courseid")) {
            foreach ($courses as $c) {
                //Adding own status for course (now it must have own)
                if (!count_records('attendance_statuses', 'courseid', $c->courseid)) {
                    $statuses = get_records('attendance_statuses', 'courseid', 0);
                    foreach ($statuses as $stat) {
                        $rec = $stat;
                        $rec->courseid = $c->courseid;
                        insert_record('attendance_statuses', $rec);
                    }
                }
                $statuses = get_records('attendance_statuses', 'courseid', $c->courseid);
                $statlist = implode(',', array_keys($statuses));
                $sess = get_records_select_menu('attendance_sessions', "courseid = {$c->courseid} AND lasttakenby > 0");
                $sesslist = implode(',', array_keys($sess));
                foreach ($statuses as $stat) {
                    execute_sql("UPDATE {$CFG->prefix}attendance_log\n\t\t\t\t\t\t\t\t\t\tSET statusid = {$stat->id}, statusset = '{$statlist}'\n\t\t\t\t\t\t\t\t\t  WHERE sessionid IN ({$sesslist}) AND status = '{$stat->status}'");
                }
                $sessions = get_records_list('attendance_sessions', 'id', $sesslist);
                foreach ($sessions as $sess) {
                    execute_sql("UPDATE {$CFG->prefix}attendance_log\n\t\t\t\t\t\t\t\t\t\tSET timetaken = {$sess->lasttaken}, \n\t\t\t\t\t\t\t\t\t\t\ttakenby = {$sess->lasttakenby}\n\t\t\t\t\t\t\t\t\t  WHERE sessionid = {$sess->id}");
                }
            }
        }
    }
    if ($oldversion < 2008102409 and $result) {
        $table = new XMLDBTable('attendance_statuses');
        $field = new XMLDBField('status');
        $result = $result && drop_field($table, $field);
        $index = new XMLDBIndex('status');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('status'));
        $result = $result && drop_index($table, $index);
        $table = new XMLDBTable('attendance_log');
        $field = new XMLDBField('status');
        $result = $result && drop_field($table, $field);
        $index = new XMLDBIndex('status');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('status'));
        $result = $result && drop_index($table, $index);
        $table = new XMLDBTable('attendance_sessions');
        $field = new XMLDBField('creator');
        $result = $result && drop_field($table, $field);
    }
    return $result;
}
Esempio n. 19
0
function xmldb_blocktype_externalfeed_upgrade($oldversion = 0)
{
    if ($oldversion < 2008042101) {
        // We hit the 255 character limit for feed URLs
        if (is_postgres()) {
            execute_sql('ALTER TABLE {blocktype_externalfeed_data} ALTER COLUMN url TYPE TEXT');
        } else {
            if (is_mysql()) {
                // If 2 URLs > 255 chars have the same first 255 characters then mahara will error - this is a MySQL issue though, their unique key length limit is to blame
                execute_sql('ALTER TABLE {blocktype_externalfeed_data} DROP KEY {blocextedata_url_uix}');
                // We have to remove then add the constraint again else the change will make MySQL cry
                execute_sql('ALTER TABLE {blocktype_externalfeed_data} MODIFY COLUMN "url" text');
                execute_sql('ALTER TABLE {blocktype_externalfeed_data} add unique {blocextedata_url_uix} (url(255))');
            }
        }
    }
    if ($oldversion < 2009121600) {
        if (is_mysql()) {
            // Make content column wider (TEXT is only 65kb in mysql)
            $table = new XMLDBTable('blocktype_externalfeed_data');
            $field = new XMLDBField('content');
            $field->setAttributes(XMLDB_TYPE_TEXT, "big", null, null);
            change_field_precision($table, $field);
        }
    }
    if ($oldversion < 2010073000) {
        execute_sql('
            UPDATE {blocktype_cron}
            SET minute = ?
            WHERE minute = ? AND hour = ? AND plugin = ? AND callfunction = ?', array('30', '0', '3', 'externalfeed', 'cleanup_feeds'));
    }
    if ($oldversion < 2011091400) {
        // Add columns for HTTP basic auth
        $table = new XMLDBTable('blocktype_externalfeed_data');
        $field1 = new XMLDBField('authuser');
        $field1->setAttributes(XMLDB_TYPE_TEXT);
        $field2 = new XMLDBField('authpassword');
        $field2->setAttributes(XMLDB_TYPE_TEXT);
        add_field($table, $field1);
        add_field($table, $field2);
        // Change unique constraint that's no longer valid
        $table = new XMLDBTable('blocktype_externalfeed_data');
        $index = new XMLDBIndex('url_uix');
        $index->setAttributes(XMLDB_INDEX_UNIQUE, array('url'));
        drop_index($table, $index);
        if (is_postgres()) {
            $index = new XMLDBIndex('urlautautix');
            $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('url', 'authuser', 'authpassword'));
            add_index($table, $index);
        } else {
            if (is_mysql()) {
                // MySQL needs size limits when indexing text fields
                execute_sql('ALTER TABLE {blocktype_externalfeed_data} ADD INDEX
                           {blocextedata_urlautaut_ix} (url(255), authuser(255), authpassword(255))');
            }
        }
    }
    if ($oldversion < 2011091401) {
        // Add columns for insecure SSL mode
        $table = new XMLDBTable('blocktype_externalfeed_data');
        $field = new XMLDBField('insecuresslmode');
        $field->setAttributes(XMLDB_TYPE_INTEGER, 1, null, XMLDB_NOTNULL, null, null, null, 0);
        add_field($table, $field);
    }
    if ($oldversion < 2012090700) {
        // Reset all feeds to reset themselves
        set_field('blocktype_externalfeed_data', 'lastupdate', db_format_timestamp('0'));
        safe_require('blocktype', 'externalfeed');
        call_static_method('PluginBlocktypeExternalfeed', 'refresh_feeds');
    }
    if ($oldversion < 2014041500) {
        log_debug('Cleaning up duplicate feeds in the externalfeed blocktype');
        log_debug('1. Find the duplicate feed urls');
        // Setting these to be empty strings instead of NULL will make our SQL a lot simpler in the next section
        execute_sql("update {blocktype_externalfeed_data} set authuser='' where authuser is null");
        execute_sql("update {blocktype_externalfeed_data} set authpassword='' where authpassword is null");
        if ($duplicatefeeds = get_records_sql_array("SELECT COUNT(url), url, authuser, authpassword FROM {blocktype_externalfeed_data} GROUP BY url, authuser, authpassword HAVING COUNT(url) > 1 ORDER BY url, authuser, authpassword", array())) {
            log_debug('2. Get all feed ids for the duplicated feed urls');
            // Use the 1st one found to be the feed id for the block instances that need updating
            $feedstoupdate = array();
            foreach ($duplicatefeeds as $feed) {
                $feedids = get_column('blocktype_externalfeed_data', 'id', 'url', $feed->url, 'authuser', $feed->authuser, 'authpassword', $feed->authpassword);
                $feedstoupdate[$feed->url] = $feedids;
            }
            log_debug('3. Updating blocks to use correct feed id');
            // Find the block instances using external feeds. Check to see if they are not using the 'true' id and update them accordingly
            require_once get_config('docroot') . 'blocktype/lib.php';
            $blockids = get_records_array('block_instance', 'blocktype', 'externalfeed', 'id ASC', 'id');
            foreach ($blockids as $blockid) {
                $blockinstance = new BlockInstance($blockid->id);
                $configdata = $blockinstance->get('configdata');
                if (!empty($configdata['feedid'])) {
                    foreach ($feedstoupdate as $url => $ids) {
                        foreach ($ids as $key => $id) {
                            if ($id == $configdata['feedid'] && $key != '0') {
                                $configdata['feedid'] = $ids[0];
                                $blockinstance->set('configdata', $configdata);
                                $blockinstance->set('dirty', true);
                                $blockinstance->commit();
                                break;
                            }
                        }
                    }
                }
            }
            log_debug('4. Removing orphaned feed rows');
            foreach ($feedstoupdate as $url => $ids) {
                foreach ($ids as $key => $id) {
                    if ($key != '0') {
                        execute_sql("DELETE FROM {blocktype_externalfeed_data} WHERE id = ?", array($id));
                    }
                }
            }
        }
    }
    return true;
}
Esempio n. 20
0
function xmldb_main_upgrade($oldversion = 0)
{
    global $CFG, $THEME, $USER, $SITE, $db;
    $result = true;
    if ($result && $oldversion < 2006100401) {
        /// Only for those tracking Moodle 1.7 dev, others will have these dropped in moodle_install_roles()
        if (!empty($CFG->rolesactive)) {
            drop_table(new XMLDBTable('user_students'));
            drop_table(new XMLDBTable('user_teachers'));
            drop_table(new XMLDBTable('user_coursecreators'));
            drop_table(new XMLDBTable('user_admins'));
        }
        upgrade_main_savepoint($result, 2006100401);
    }
    if ($result && $oldversion < 2006100601) {
        /// Disable the exercise module because it's unmaintained
        if ($module = get_record('modules', 'name', 'exercise')) {
            if ($module->visible) {
                // Hide/disable the module entry
                set_field('modules', 'visible', '0', 'id', $module->id);
                // Save existing visible state for all activities
                set_field('course_modules', 'visibleold', '1', 'visible', '1', 'module', $module->id);
                set_field('course_modules', 'visibleold', '0', 'visible', '0', 'module', $module->id);
                // Hide all activities
                set_field('course_modules', 'visible', '0', 'module', $module->id);
                //require_once($CFG->dirroot.'/course/lib.php');
                //rebuild_course_cache();  // Rebuld cache for all modules because they might have changed
            }
        }
        upgrade_main_savepoint($result, 2006100601);
    }
    if ($result && $oldversion < 2006101001) {
        /// Disable the LAMS module by default (if it is installed)
        if (count_records('modules', 'name', 'lams') && !count_records('lams')) {
            set_field('modules', 'visible', 0, 'name', 'lams');
            // Disable it by default
        }
        upgrade_main_savepoint($result, 2006101001);
    }
    if ($result && $oldversion < 2006102600) {
        /// Define fields to be added to user_info_field
        $table = new XMLDBTable('user_info_field');
        $field = new XMLDBField('description');
        $field->setAttributes(XMLDB_TYPE_TEXT, 'big', null, null, null, null, null, null, 'categoryid');
        $field1 = new XMLDBField('param1');
        $field1->setAttributes(XMLDB_TYPE_TEXT, 'big', null, null, null, null, null, null, 'defaultdata');
        $field2 = new XMLDBField('param2');
        $field2->setAttributes(XMLDB_TYPE_TEXT, 'big', null, null, null, null, null, null, 'param1');
        $field3 = new XMLDBField('param3');
        $field3->setAttributes(XMLDB_TYPE_TEXT, 'big', null, null, null, null, null, null, 'param2');
        $field4 = new XMLDBField('param4');
        $field4->setAttributes(XMLDB_TYPE_TEXT, 'big', null, null, null, null, null, null, 'param3');
        $field5 = new XMLDBField('param5');
        $field5->setAttributes(XMLDB_TYPE_TEXT, 'big', null, null, null, null, null, null, 'param4');
        /// Launch add fields
        $result = $result && add_field($table, $field);
        $result = $result && add_field($table, $field1);
        $result = $result && add_field($table, $field2);
        $result = $result && add_field($table, $field3);
        $result = $result && add_field($table, $field4);
        $result = $result && add_field($table, $field5);
        upgrade_main_savepoint($result, 2006102600);
    }
    if ($result && $oldversion < 2006112000) {
        /// Define field attachment to be added to post
        $table = new XMLDBTable('post');
        $field = new XMLDBField('attachment');
        $field->setAttributes(XMLDB_TYPE_CHAR, '100', null, null, null, null, null, null, 'format');
        /// Launch add field attachment
        $result = $result && add_field($table, $field);
        upgrade_main_savepoint($result, 2006112000);
    }
    if ($result && $oldversion < 2006112200) {
        /// Define field imagealt to be added to user
        $table = new XMLDBTable('user');
        $field = new XMLDBField('imagealt');
        $field->setAttributes(XMLDB_TYPE_CHAR, '255', null, null, null, null, null, null, 'trustbitmask');
        /// Launch add field imagealt
        $result = $result && add_field($table, $field);
        $table = new XMLDBTable('user');
        $field = new XMLDBField('screenreader');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '1', null, XMLDB_NOTNULL, null, null, null, '0', 'imagealt');
        /// Launch add field screenreader
        $result = $result && add_field($table, $field);
        upgrade_main_savepoint($result, 2006112200);
    }
    if ($result && $oldversion < 2006120300) {
        /// Delete guest course section settings
        // following code can be executed repeatedly, such as when upgrading from 1.7.x - it is ok
        if ($guest = get_record('user', 'username', 'guest')) {
            execute_sql("DELETE FROM {$CFG->prefix}course_display where userid={$guest->id}", true);
        }
        upgrade_main_savepoint($result, 2006120300);
    }
    if ($result && $oldversion < 2006120400) {
        /// Remove secureforms config setting
        execute_sql("DELETE FROM {$CFG->prefix}config where name='secureforms'", true);
        upgrade_main_savepoint($result, 2006120400);
    }
    if (!empty($CFG->rolesactive) && $oldversion < 2006120700) {
        // add moodle/user:viewdetails to all roles!
        // note: use of assign_capability() is discouraged in upgrade script!
        if ($roles = get_records('role')) {
            $context = get_context_instance(CONTEXT_SYSTEM);
            foreach ($roles as $roleid => $role) {
                assign_capability('moodle/user:viewdetails', CAP_ALLOW, $roleid, $context->id);
            }
        }
        upgrade_main_savepoint($result, 2006120700);
    }
    // Move the auth plugin settings into the config_plugin table
    if ($result && $oldversion < 2007010300) {
        if ($CFG->auth == 'email') {
            set_config('registerauth', 'email');
        } else {
            set_config('registerauth', '');
        }
        $authplugins = get_list_of_plugins('auth');
        foreach ($CFG as $k => $v) {
            if (strpos($k, 'ldap_') === 0) {
                //upgrade nonstandard ldap settings
                $setting = substr($k, 5);
                if (set_config($setting, $v, "auth/ldap")) {
                    delete_records('config', 'name', $k);
                    unset($CFG->{$k});
                }
                continue;
            }
            if (strpos($k, 'auth_') !== 0) {
                continue;
            }
            $authsetting = substr($k, 5);
            foreach ($authplugins as $auth) {
                if (strpos($authsetting, $auth) !== 0) {
                    continue;
                }
                $setting = substr($authsetting, strlen($auth));
                if (set_config($setting, $v, "auth/{$auth}")) {
                    delete_records('config', 'name', $k);
                    unset($CFG->{$k});
                }
                break;
                // don't check the rest of the auth plugin names
            }
        }
        upgrade_main_savepoint($result, 2007010300);
    }
    if ($result && $oldversion < 2007010301) {
        //
        // Core MNET tables
        //
        $table = new XMLDBTable('mnet_host');
        $table->comment = 'Information about the local and remote hosts for RPC';
        // fields
        $f = $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', false, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $f->comment = 'Unique Host ID';
        $f = $table->addFieldInfo('deleted', XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, 0);
        $f = $table->addFieldInfo('wwwroot', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, null, null);
        $f = $table->addFieldInfo('ip_address', XMLDB_TYPE_CHAR, '39', null, XMLDB_NOTNULL, null, null, null, null);
        $f = $table->addFieldInfo('name', XMLDB_TYPE_CHAR, '80', null, XMLDB_NOTNULL, null, null, null, null);
        $f = $table->addFieldInfo('public_key', XMLDB_TYPE_TEXT, 'medium', null, XMLDB_NOTNULL, null, null, null, null);
        $f = $table->addFieldInfo('public_key_expires', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, 0);
        $f = $table->addFieldInfo('transport', XMLDB_TYPE_INTEGER, '2', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, 0);
        $f = $table->addFieldInfo('portno', XMLDB_TYPE_INTEGER, '2', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, 0);
        $f = $table->addFieldInfo('last_connect_time', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, 0);
        $f = $table->addFieldInfo('last_log_id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, 0);
        // PK and indexes
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        // Create the table
        $result = $result && create_table($table);
        $table = new XMLDBTable('mnet_host2service');
        $table->comment = 'Information about the services for a given host';
        // fields
        $f = $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', false, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $f = $table->addFieldInfo('hostid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        $f = $table->addFieldInfo('serviceid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        $f = $table->addFieldInfo('publish', XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        $f = $table->addFieldInfo('subscribe', XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        // PK and indexes
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addIndexInfo('hostid_serviceid', XMLDB_INDEX_UNIQUE, array('hostid', 'serviceid'));
        // Create the table
        $result = $result && create_table($table);
        $table = new XMLDBTable('mnet_log');
        $table->comment = 'Store session data from users migrating to other sites';
        // fields
        $f = $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', false, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $f = $table->addFieldInfo('hostid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        $f = $table->addFieldInfo('remoteid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        $f = $table->addFieldInfo('time', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        $f = $table->addFieldInfo('userid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        $f = $table->addFieldInfo('ip', XMLDB_TYPE_CHAR, '15', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('course', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        $f = $table->addFieldInfo('coursename', XMLDB_TYPE_CHAR, '40', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('module', XMLDB_TYPE_CHAR, '20', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('cmid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        $f = $table->addFieldInfo('action', XMLDB_TYPE_CHAR, '40', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('url', XMLDB_TYPE_CHAR, '100', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('info', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, NULL, null, null, null);
        // PK and indexes
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addIndexInfo('host_user_course', XMLDB_INDEX_NOTUNIQUE, array('hostid', 'userid', 'course'));
        // Create the table
        $result = $result && create_table($table);
        $table = new XMLDBTable('mnet_rpc');
        $table->comment = 'Functions or methods that we may publish or subscribe to';
        // fields
        $f = $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', false, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $f = $table->addFieldInfo('function_name', XMLDB_TYPE_CHAR, '40', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('xmlrpc_path', XMLDB_TYPE_CHAR, '80', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('parent_type', XMLDB_TYPE_CHAR, '6', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('parent', XMLDB_TYPE_CHAR, '20', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('enabled', XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        $f = $table->addFieldInfo('help', XMLDB_TYPE_TEXT, 'medium', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('profile', XMLDB_TYPE_TEXT, 'medium', null, XMLDB_NOTNULL, NULL, null, null, null);
        // PK and indexes
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addIndexInfo('enabled_xpath', XMLDB_INDEX_NOTUNIQUE, array('enabled', 'xmlrpc_path'));
        // Create the table
        $result = $result && create_table($table);
        $table = new XMLDBTable('mnet_service');
        $table->comment = 'A service is a group of functions';
        // fields
        $f = $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', false, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $f = $table->addFieldInfo('name', XMLDB_TYPE_CHAR, '40', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('description', XMLDB_TYPE_CHAR, '40', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('apiversion', XMLDB_TYPE_CHAR, '10', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('offer', XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        // PK and indexes
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        // Create the table
        $result = $result && create_table($table);
        $table = new XMLDBTable('mnet_service2rpc');
        $table->comment = 'Group functions or methods under a service';
        // fields
        $f = $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', false, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $f = $table->addFieldInfo('serviceid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        $f = $table->addFieldInfo('rpcid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        // PK and indexes
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addIndexInfo('unique', XMLDB_INDEX_UNIQUE, array('rpcid', 'serviceid'));
        // Create the table
        $result = $result && create_table($table);
        //
        // Prime MNET configuration entries -- will be needed later by auth/mnet
        //
        include_once $CFG->dirroot . '/mnet/lib.php';
        $env = new mnet_environment();
        $env->init();
        unset($env);
        // add mnethostid to user-
        $table = new XMLDBTable('user');
        $field = new XMLDBField('mnethostid');
        $field->setType(XMLDB_TYPE_INTEGER);
        $field->setLength(10);
        $field->setNotNull(true);
        $field->setSequence(null);
        $field->setEnum(null);
        $field->setDefault('0');
        $field->setPrevious("deleted");
        $field->setNext("username");
        $result = $result && add_field($table, $field);
        // The default mnethostid is zero... we need to update this for all
        // users of the local IdP service.
        set_field('user', 'mnethostid', $CFG->mnet_localhost_id, 'mnethostid', '0');
        $index = new XMLDBIndex('username');
        $index->setUnique(true);
        $index->setFields(array('username'));
        drop_index($table, $index);
        $index->setFields(array('mnethostid', 'username'));
        if (!add_index($table, $index)) {
            notify(get_string('duplicate_usernames', 'mnet', 'http://docs.moodle.org/en/DuplicateUsernames'));
        }
        unset($table, $field, $index);
        /**
         ** auth/mnet tables
         **/
        $table = new XMLDBTable('mnet_session');
        $table->comment = 'Store session data from users migrating to other sites';
        // fields
        $f = $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', false, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $f = $table->addFieldInfo('userid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        $f = $table->addFieldInfo('username', XMLDB_TYPE_CHAR, '100', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('token', XMLDB_TYPE_CHAR, '40', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('mnethostid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        $f = $table->addFieldInfo('useragent', XMLDB_TYPE_CHAR, '40', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('confirm_timeout', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        $f = $table->addFieldInfo('session_id', XMLDB_TYPE_CHAR, '40', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('expires', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        // PK and indexes
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addIndexInfo('token', XMLDB_INDEX_UNIQUE, array('token'));
        // Create the table
        $result = $result && create_table($table);
        $table = new XMLDBTable('mnet_sso_access_control');
        $table->comment = 'Users by host permitted (or not) to login from a remote provider';
        $f = $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', false, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $f = $table->addFieldInfo('username', XMLDB_TYPE_CHAR, '100', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('mnet_host_id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        $f = $table->addFieldInfo('access', XMLDB_TYPE_CHAR, '20', null, XMLDB_NOTNULL, NULL, null, null, 'allow');
        // PK and indexes
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addIndexInfo('mnethostid_username', XMLDB_INDEX_UNIQUE, array('mnet_host_id', 'username'));
        // Create the table
        $result = $result && create_table($table);
        if (empty($USER->mnet_host_id)) {
            $USER->mnet_host_id = $CFG->mnet_localhost_id;
            // Something for the current user to prevent warnings
        }
        /**
         ** enrol/mnet tables
         **/
        $table = new XMLDBTable('mnet_enrol_course');
        $table->comment = 'Information about courses on remote hosts';
        $f = $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', false, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $f = $table->addFieldInfo('hostid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        $f = $table->addFieldInfo('remoteid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        $f = $table->addFieldInfo('cat_id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        $f = $table->addFieldInfo('cat_name', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('cat_description', XMLDB_TYPE_TEXT, 'medium', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('sortorder', XMLDB_TYPE_INTEGER, '4', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        $f = $table->addFieldInfo('fullname', XMLDB_TYPE_CHAR, '254', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('shortname', XMLDB_TYPE_CHAR, '15', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('idnumber', XMLDB_TYPE_CHAR, '100', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('summary', XMLDB_TYPE_TEXT, 'medium', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('startdate', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        $f = $table->addFieldInfo('cost', XMLDB_TYPE_CHAR, '10', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('currency', XMLDB_TYPE_CHAR, '3', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('defaultroleid', XMLDB_TYPE_INTEGER, '4', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        $f = $table->addFieldInfo('defaultrolename', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, NULL, null, null, null);
        // PK and indexes
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addIndexInfo('hostid_remoteid', XMLDB_INDEX_UNIQUE, array('hostid', 'remoteid'));
        // Create the table
        $result = $result && create_table($table);
        $table = new XMLDBTable('mnet_enrol_assignments');
        $table->comment = 'Information about enrolments on courses on remote hosts';
        $f = $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', false, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $f = $table->addFieldInfo('userid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        $f = $table->addFieldInfo('hostid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        $f = $table->addFieldInfo('courseid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        $f = $table->addFieldInfo('rolename', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('enroltime', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        $f = $table->addFieldInfo('enroltype', XMLDB_TYPE_CHAR, '20', null, XMLDB_NOTNULL, NULL, null, null, null);
        // PK and indexes
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addIndexInfo('hostid_courseid', XMLDB_INDEX_NOTUNIQUE, array('hostid', 'courseid'));
        $table->addIndexInfo('userid', XMLDB_INDEX_NOTUNIQUE, array('userid'));
        // Create the table
        $result = $result && create_table($table);
        upgrade_main_savepoint($result, 2007010301);
    }
    if ($result && $oldversion < 2007010404) {
        /// Define field shortname to be added to user_info_field
        $table = new XMLDBTable('user_info_field');
        $field = new XMLDBField('shortname');
        $field->setAttributes(XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, null, 'shortname', 'id');
        /// Launch add field shortname
        $result = $result && add_field($table, $field);
        /// Changing type of field name on table user_info_field to text
        $table = new XMLDBTable('user_info_field');
        $field = new XMLDBField('name');
        $field->setAttributes(XMLDB_TYPE_TEXT, 'big', null, XMLDB_NOTNULL, null, null, null, null, 'shortname');
        /// Launch change of type for field name
        $result = $result && change_field_type($table, $field);
        /// For existing fields use 'name' as the 'shortname' entry
        if ($fields = get_records_select('user_info_field', '', '', 'id, name')) {
            foreach ($fields as $field) {
                $field->shortname = clean_param($field->name, PARAM_ALPHANUM);
                $result && update_record('user_info_field', $field);
            }
        }
        upgrade_main_savepoint($result, 2007010404);
    }
    if ($result && $oldversion < 2007011501) {
        if (!empty($CFG->enablerecordcache) && empty($CFG->rcache) && empty($CFG->cachetype) && empty($CFG->intcachemax)) {
            set_config('cachetype', 'internal');
            set_config('rcache', true);
            set_config('intcachemax', $CFG->enablerecordcache);
            unset_config('enablerecordcache');
            unset($CFG->enablerecordcache);
        }
        upgrade_main_savepoint($result, 2007011501);
    }
    if ($result && $oldversion < 2007012100) {
        /// Some old PG servers have user->firstname & user->lastname with 30cc. They must be 100cc.
        /// Fixing that conditionally. MDL-7110
        if ($CFG->dbfamily == 'postgres') {
            /// Get Metadata from user table
            $cols = array_change_key_case($db->MetaColumns($CFG->prefix . 'user'), CASE_LOWER);
            /// Process user->firstname if needed
            if ($col = $cols['firstname']) {
                if ($col->max_length < 100) {
                    /// Changing precision of field firstname on table user to (100)
                    $table = new XMLDBTable('user');
                    $field = new XMLDBField('firstname');
                    $field->setAttributes(XMLDB_TYPE_CHAR, '100', null, XMLDB_NOTNULL, null, null, null, null, 'idnumber');
                    /// Launch change of precision for field firstname
                    $result = $result && change_field_precision($table, $field);
                }
            }
            /// Process user->lastname if needed
            if ($col = $cols['lastname']) {
                if ($col->max_length < 100) {
                    /// Changing precision of field lastname on table user to (100)
                    $table = new XMLDBTable('user');
                    $field = new XMLDBField('lastname');
                    $field->setAttributes(XMLDB_TYPE_CHAR, '100', null, XMLDB_NOTNULL, null, null, null, null, 'firstname');
                    /// Launch change of precision for field lastname
                    $result = $result && change_field_precision($table, $field);
                }
            }
        }
        upgrade_main_savepoint($result, 2007012100);
    }
    if ($result && $oldversion < 2007012101) {
        /// Changing precision of field lang on table course to (30)
        $table = new XMLDBTable('course');
        $field = new XMLDBField('lang');
        $field->setAttributes(XMLDB_TYPE_CHAR, '30', null, XMLDB_NOTNULL, null, null, null, null, 'groupmodeforce');
        /// Launch change of precision for field course->lang
        $result = $result && change_field_precision($table, $field);
        /// Changing precision of field lang on table user to (30)
        $table = new XMLDBTable('user');
        $field = new XMLDBField('lang');
        $field->setAttributes(XMLDB_TYPE_CHAR, '30', null, XMLDB_NOTNULL, null, null, null, 'en', 'country');
        /// Launch change of precision for field user->lang
        $result = $result && change_field_precision($table, $field);
        upgrade_main_savepoint($result, 2007012101);
    }
    if ($result && $oldversion < 2007012400) {
        /// Rename field access on table mnet_sso_access_control to accessctrl
        $table = new XMLDBTable('mnet_sso_access_control');
        $field = new XMLDBField('access');
        $field->setAttributes(XMLDB_TYPE_CHAR, '20', null, XMLDB_NOTNULL, null, null, null, 'allow', 'mnet_host_id');
        /// Launch rename field accessctrl
        $result = $result && rename_field($table, $field, 'accessctrl');
        upgrade_main_savepoint($result, 2007012400);
    }
    if ($result && $oldversion < 2007012500) {
        execute_sql("DELETE FROM {$CFG->prefix}user WHERE username='******'", true);
        upgrade_main_savepoint($result, 2007012500);
    }
    if ($result && $oldversion < 2007020400) {
        /// Only for MySQL and PG, declare the user->ajax field as not null. MDL-8421.
        if ($CFG->dbfamily == 'mysql' || $CFG->dbfamily == 'postgres') {
            /// Changing nullability of field ajax on table user to not null
            $table = new XMLDBTable('user');
            $field = new XMLDBField('ajax');
            $field->setAttributes(XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '1', 'htmleditor');
            /// Launch change of nullability for field ajax
            $result = $result && change_field_notnull($table, $field);
        }
        upgrade_main_savepoint($result, 2007020400);
    }
    if (!empty($CFG->rolesactive) && $result && $oldversion < 2007021401) {
        /// create default logged in user role if not present - upgrade rom 1.7.x
        if (empty($CFG->defaultuserroleid) or empty($CFG->guestroleid) or $CFG->defaultuserroleid == $CFG->guestroleid) {
            if (!get_records('role', 'shortname', 'user')) {
                $userroleid = create_role(addslashes(get_string('authenticateduser')), 'user', addslashes(get_string('authenticateduserdescription')), 'moodle/legacy:user');
                if ($userroleid) {
                    reset_role_capabilities($userroleid);
                    set_config('defaultuserroleid', $userroleid);
                }
            }
        }
        upgrade_main_savepoint($result, 2007021401);
    }
    if ($result && $oldversion < 2007021501) {
        /// delete removed setting from config
        unset_config('tabselectedtofront');
        upgrade_main_savepoint($result, 2007021501);
    }
    if ($result && $oldversion < 2007032200) {
        /// Define table role_sortorder to be created
        $table = new XMLDBTable('role_sortorder');
        /// Adding fields to table role_sortorder
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('userid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('roleid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('contextid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('sortoder', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null, null, null);
        /// Adding keys to table role_sortorder
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addKeyInfo('userid', XMLDB_KEY_FOREIGN, array('userid'), 'user', array('id'));
        $table->addKeyInfo('roleid', XMLDB_KEY_FOREIGN, array('roleid'), 'role', array('id'));
        $table->addKeyInfo('contextid', XMLDB_KEY_FOREIGN, array('contextid'), 'context', array('id'));
        /// Adding indexes to table role_sortorder
        $table->addIndexInfo('userid-roleid-contextid', XMLDB_INDEX_UNIQUE, array('userid', 'roleid', 'contextid'));
        /// Launch create table for role_sortorder
        $result = $result && create_table($table);
        upgrade_main_savepoint($result, 2007032200);
    }
    /// code to change lenghen tag field to 255, MDL-9095
    if ($result && $oldversion < 2007040400) {
        /// Define index text (not unique) to be dropped form tags
        $table = new XMLDBTable('tags');
        $index = new XMLDBIndex('text');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('text'));
        /// Launch drop index text
        $result = $result && drop_index($table, $index);
        $field = new XMLDBField('text');
        $field->setAttributes(XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, null, null, 'userid');
        /// Launch change of type for field text
        $result = $result && change_field_type($table, $field);
        $index = new XMLDBIndex('text');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('text'));
        /// Launch add index text
        $result = $result && add_index($table, $index);
        upgrade_main_savepoint($result, 2007040400);
    }
    if ($result && $oldversion < 2007041100) {
        /// Define field idnumber to be added to course_modules
        $table = new XMLDBTable('course_modules');
        $field = new XMLDBField('idnumber');
        $field->setAttributes(XMLDB_TYPE_CHAR, '100', null, null, null, null, null, null, 'section');
        /// Launch add field idnumber
        $result = $result && add_field($table, $field);
        upgrade_main_savepoint($result, 2007041100);
    }
    /* Changes to the custom profile menu type - store values rather than indices.
       We could do all this with one tricky SQL statement but it's a one-off so no
       harm in using PHP loops */
    if ($result && $oldversion < 2007041600) {
        /// Get the menu fields
        if ($fields = get_records('user_info_field', 'datatype', 'menu')) {
            foreach ($fields as $field) {
                /// Get user data for the menu field
                if ($data = get_records('user_info_data', 'fieldid', $field->id)) {
                    /// Get the menu options
                    $options = explode("\n", $field->param1);
                    foreach ($data as $d) {
                        $key = array_search($d->data, $options);
                        /// If the data is an integer and is not one of the options,
                        /// set the respective option value
                        if (is_int($d->data) and ($key === NULL or $key === false) and isset($options[$d->data])) {
                            $d->data = $options[$d->data];
                            $result = $result && update_record('user_info_data', $d);
                        }
                    }
                }
            }
        }
        upgrade_main_savepoint($result, 2007041600);
    }
    /// adding new gradebook tables
    if ($result && $oldversion < 2007041800) {
        /// Define table events_handlers to be created
        $table = new XMLDBTable('events_handlers');
        /// Adding fields to table events_handlers
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('eventname', XMLDB_TYPE_CHAR, '166', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('handlermodule', XMLDB_TYPE_CHAR, '166', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('handlerfile', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('handlerfunction', XMLDB_TYPE_TEXT, 'medium', null, null, null, null, null, null);
        /// Adding keys to table events_handlers
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        /// Adding indexes to table events_handlers
        $table->addIndexInfo('eventname-handlermodule', XMLDB_INDEX_UNIQUE, array('eventname', 'handlermodule'));
        /// Launch create table for events_handlers
        $result = $result && create_table($table);
        /// Define table events_queue to be created
        $table = new XMLDBTable('events_queue');
        /// Adding fields to table events_queue
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('eventdata', XMLDB_TYPE_TEXT, 'big', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('schedule', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('stackdump', XMLDB_TYPE_TEXT, 'medium', null, null, null, null, null, null);
        $table->addFieldInfo('userid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('timecreated', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        /// Adding keys to table events_queue
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addKeyInfo('userid', XMLDB_KEY_FOREIGN, array('userid'), 'user', array('id'));
        /// Launch create table for events_queue
        $result = $result && create_table($table);
        /// Define table events_queue_handlers to be created
        $table = new XMLDBTable('events_queue_handlers');
        /// Adding fields to table events_queue_handlers
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('queuedeventid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('handlerid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('status', XMLDB_TYPE_INTEGER, '10', null, null, null, null, null, null);
        $table->addFieldInfo('errormessage', XMLDB_TYPE_TEXT, 'medium', null, null, null, null, null, null);
        $table->addFieldInfo('timemodified', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        /// Adding keys to table events_queue_handlers
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addKeyInfo('queuedeventid', XMLDB_KEY_FOREIGN, array('queuedeventid'), 'events_queue', array('id'));
        $table->addKeyInfo('handlerid', XMLDB_KEY_FOREIGN, array('handlerid'), 'events_handlers', array('id'));
        /// Launch create table for events_queue_handlers
        $result = $result && create_table($table);
        upgrade_main_savepoint($result, 2007041800);
    }
    if ($result && $oldversion < 2007043001) {
        /// Define field schedule to be added to events_handlers
        $table = new XMLDBTable('events_handlers');
        $field = new XMLDBField('schedule');
        $field->setAttributes(XMLDB_TYPE_CHAR, '255', null, null, null, null, null, null, 'handlerfunction');
        /// Launch add field schedule
        $result = $result && add_field($table, $field);
        /// Define field status to be added to events_handlers
        $table = new XMLDBTable('events_handlers');
        $field = new XMLDBField('status');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'schedule');
        /// Launch add field status
        $result = $result && add_field($table, $field);
        upgrade_main_savepoint($result, 2007043001);
    }
    if ($result && $oldversion < 2007050201) {
        /// Define field theme to be added to course_categories
        $table = new XMLDBTable('course_categories');
        $field = new XMLDBField('theme');
        $field->setAttributes(XMLDB_TYPE_CHAR, '50', null, null, null, null, null, null, 'path');
        /// Launch add field theme
        $result = $result && add_field($table, $field);
        upgrade_main_savepoint($result, 2007050201);
    }
    if ($result && $oldversion < 2007051100) {
        /// Define field forceunique to be added to user_info_field
        $table = new XMLDBTable('user_info_field');
        $field = new XMLDBField('forceunique');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '2', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'visible');
        /// Launch add field forceunique
        $result = $result && add_field($table, $field);
        /// Define field signup to be added to user_info_field
        $table = new XMLDBTable('user_info_field');
        $field = new XMLDBField('signup');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '2', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'forceunique');
        /// Launch add field signup
        $result = $result && add_field($table, $field);
        upgrade_main_savepoint($result, 2007051100);
    }
    if (!empty($CFG->rolesactive) && $result && $oldversion < 2007051801) {
        // Get the role id of the "Auth. User" role and check if the default role id is different
        // note: use of assign_capability() is discouraged in upgrade script!
        $userrole = get_record('role', 'shortname', 'user');
        $defaultroleid = $CFG->defaultuserroleid;
        if ($defaultroleid != $userrole->id) {
            //  Add in the new moodle/my:manageblocks capibility to the default user role
            $context = get_context_instance(CONTEXT_SYSTEM);
            assign_capability('moodle/my:manageblocks', CAP_ALLOW, $defaultroleid, $context->id);
        }
        upgrade_main_savepoint($result, 2007051801);
    }
    if ($result && $oldversion < 2007052200) {
        /// Define field schedule to be dropped from events_queue
        $table = new XMLDBTable('events_queue');
        $field = new XMLDBField('schedule');
        /// Launch drop field stackdump
        $result = $result && drop_field($table, $field);
        upgrade_main_savepoint($result, 2007052200);
    }
    if ($result && $oldversion < 2007052300) {
        require_once $CFG->dirroot . '/question/upgrade.php';
        $result = $result && question_remove_rqp_qtype();
        upgrade_main_savepoint($result, 2007052300);
    }
    if ($result && $oldversion < 2007060500) {
        /// Define field usermodified to be added to post
        $table = new XMLDBTable('post');
        $field = new XMLDBField('usermodified');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null, 'created');
        /// Launch add field usermodified
        $result = $result && add_field($table, $field);
        /// Define key usermodified (foreign) to be added to post
        $table = new XMLDBTable('post');
        $key = new XMLDBKey('usermodified');
        $key->setAttributes(XMLDB_KEY_FOREIGN, array('usermodified'), 'user', array('id'));
        /// Launch add key usermodified
        $result = $result && add_key($table, $key);
        upgrade_main_savepoint($result, 2007060500);
    }
    if ($result && $oldversion < 2007070603) {
        // Small update of guest user to be 100% sure it has the correct mnethostid (MDL-10375)
        set_field('user', 'mnethostid', $CFG->mnet_localhost_id, 'username', 'guest');
        upgrade_main_savepoint($result, 2007070603);
    }
    if ($result && $oldversion < 2007071400) {
        /**
         ** mnet application table
         **/
        $table = new XMLDBTable('mnet_application');
        $table->comment = 'Information about applications on remote hosts';
        $f = $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', false, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $f = $table->addFieldInfo('name', XMLDB_TYPE_CHAR, '50', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('display_name', XMLDB_TYPE_CHAR, '50', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('xmlrpc_server_url', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('sso_land_url', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, NULL, null, null, null);
        // PK and indexes
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        // Create the table
        $result = $result && create_table($table);
        // Insert initial applications (moodle and mahara)
        $application = new stdClass();
        $application->name = 'moodle';
        $application->display_name = 'Moodle';
        $application->xmlrpc_server_url = '/mnet/xmlrpc/server.php';
        $application->sso_land_url = '/auth/mnet/land.php';
        if ($result) {
            $newid = insert_record('mnet_application', $application, false);
        }
        $application = new stdClass();
        $application->name = 'mahara';
        $application->display_name = 'Mahara';
        $application->xmlrpc_server_url = '/api/xmlrpc/server.php';
        $application->sso_land_url = '/auth/xmlrpc/land.php';
        $result = $result && insert_record('mnet_application', $application, false);
        // New mnet_host->applicationid field
        $table = new XMLDBTable('mnet_host');
        $field = new XMLDBField('applicationid');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, $newid, 'last_log_id');
        $result = $result && add_field($table, $field);
        /// Define key applicationid (foreign) to be added to mnet_host
        $table = new XMLDBTable('mnet_host');
        $key = new XMLDBKey('applicationid');
        $key->setAttributes(XMLDB_KEY_FOREIGN, array('applicationid'), 'mnet_application', array('id'));
        /// Launch add key applicationid
        $result = $result && add_key($table, $key);
        upgrade_main_savepoint($result, 2007071400);
    }
    if ($result && $oldversion < 2007071607) {
        require_once $CFG->dirroot . '/question/upgrade.php';
        $result = $result && question_remove_rqp_qtype_config_string();
        upgrade_main_savepoint($result, 2007071607);
    }
    if ($result && $oldversion < 2007072200) {
        /// Remove all grade tables used in development phases - we need new empty tables for final gradebook upgrade
        $tables = array('grade_categories', 'grade_items', 'grade_calculations', 'grade_grades', 'grade_grades_raw', 'grade_grades_final', 'grade_grades_text', 'grade_outcomes', 'grade_outcomes_courses', 'grade_history', 'grade_import_newitem', 'grade_import_values');
        foreach ($tables as $table) {
            $table = new XMLDBTable($table);
            if (table_exists($table)) {
                drop_table($table);
            }
        }
        $tables = array('grade_categories_history', 'grade_items_history', 'grade_grades_history', 'grade_grades_text_history', 'grade_scale_history', 'grade_outcomes_history');
        foreach ($tables as $table) {
            $table = new XMLDBTable($table);
            if (table_exists($table)) {
                drop_table($table);
            }
        }
        /// Define table grade_outcomes to be created
        $table = new XMLDBTable('grade_outcomes');
        /// Adding fields to table grade_outcomes
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('courseid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('shortname', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('fullname', XMLDB_TYPE_TEXT, 'small', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('scaleid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('description', XMLDB_TYPE_TEXT, 'small', null, null, null, null, null, null);
        $table->addFieldInfo('timecreated', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('timemodified', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('usermodified', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        /// Adding keys to table grade_outcomes
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addKeyInfo('courseid', XMLDB_KEY_FOREIGN, array('courseid'), 'course', array('id'));
        $table->addKeyInfo('scaleid', XMLDB_KEY_FOREIGN, array('scaleid'), 'scale', array('id'));
        $table->addKeyInfo('usermodified', XMLDB_KEY_FOREIGN, array('usermodified'), 'user', array('id'));
        /// Launch create table for grade_outcomes
        $result = $result && create_table($table);
        /// Define table grade_categories to be created
        $table = new XMLDBTable('grade_categories');
        /// Adding fields to table grade_categories
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('courseid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('parent', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('depth', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('path', XMLDB_TYPE_CHAR, '255', null, null, null, null, null, null);
        $table->addFieldInfo('fullname', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('aggregation', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('keephigh', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('droplow', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('aggregateonlygraded', XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('aggregateoutcomes', XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('aggregatesubcats', XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('timecreated', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('timemodified', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        /// Adding keys to table grade_categories
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addKeyInfo('courseid', XMLDB_KEY_FOREIGN, array('courseid'), 'course', array('id'));
        $table->addKeyInfo('parent', XMLDB_KEY_FOREIGN, array('parent'), 'grade_categories', array('id'));
        /// Launch create table for grade_categories
        $result = $result && create_table($table);
        /// Define table grade_items to be created
        $table = new XMLDBTable('grade_items');
        /// Adding fields to table grade_items
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('courseid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('categoryid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('itemname', XMLDB_TYPE_CHAR, '255', null, null, null, null, null, null);
        $table->addFieldInfo('itemtype', XMLDB_TYPE_CHAR, '30', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('itemmodule', XMLDB_TYPE_CHAR, '30', null, null, null, null, null, null);
        $table->addFieldInfo('iteminstance', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('itemnumber', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('iteminfo', XMLDB_TYPE_TEXT, 'medium', null, null, null, null, null, null);
        $table->addFieldInfo('idnumber', XMLDB_TYPE_CHAR, '255', null, null, null, null, null, null);
        $table->addFieldInfo('calculation', XMLDB_TYPE_TEXT, 'medium', null, null, null, null, null, null);
        $table->addFieldInfo('gradetype', XMLDB_TYPE_INTEGER, '4', null, XMLDB_NOTNULL, null, null, null, '1');
        $table->addFieldInfo('grademax', XMLDB_TYPE_NUMBER, '10, 5', null, XMLDB_NOTNULL, null, null, null, '100');
        $table->addFieldInfo('grademin', XMLDB_TYPE_NUMBER, '10, 5', null, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('scaleid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('outcomeid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('gradepass', XMLDB_TYPE_NUMBER, '10, 5', null, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('multfactor', XMLDB_TYPE_NUMBER, '10, 5', null, XMLDB_NOTNULL, null, null, null, '1.0');
        $table->addFieldInfo('plusfactor', XMLDB_TYPE_NUMBER, '10, 5', null, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('aggregationcoef', XMLDB_TYPE_NUMBER, '10, 5', null, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('sortorder', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('display', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('decimals', XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('hidden', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('locked', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('locktime', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('needsupdate', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('timecreated', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('timemodified', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        /// Adding keys to table grade_items
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addKeyInfo('courseid', XMLDB_KEY_FOREIGN, array('courseid'), 'course', array('id'));
        $table->addKeyInfo('categoryid', XMLDB_KEY_FOREIGN, array('categoryid'), 'grade_categories', array('id'));
        $table->addKeyInfo('scaleid', XMLDB_KEY_FOREIGN, array('scaleid'), 'scale', array('id'));
        $table->addKeyInfo('outcomeid', XMLDB_KEY_FOREIGN, array('outcomeid'), 'grade_outcomes', array('id'));
        /// Adding indexes to table grade_grades
        $table->addIndexInfo('locked-locktime', XMLDB_INDEX_NOTUNIQUE, array('locked', 'locktime'));
        $table->addIndexInfo('itemtype-needsupdate', XMLDB_INDEX_NOTUNIQUE, array('itemtype', 'needsupdate'));
        $table->addIndexInfo('gradetype', XMLDB_INDEX_NOTUNIQUE, array('gradetype'));
        /// Launch create table for grade_items
        $result = $result && create_table($table);
        /// Define table grade_grades to be created
        $table = new XMLDBTable('grade_grades');
        /// Adding fields to table grade_grades
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('itemid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('userid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('rawgrade', XMLDB_TYPE_NUMBER, '10, 5', null, null, null, null, null, null);
        $table->addFieldInfo('rawgrademax', XMLDB_TYPE_NUMBER, '10, 5', null, XMLDB_NOTNULL, null, null, null, '100');
        $table->addFieldInfo('rawgrademin', XMLDB_TYPE_NUMBER, '10, 5', null, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('rawscaleid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('usermodified', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('finalgrade', XMLDB_TYPE_NUMBER, '10, 5', null, null, null, null, null, null);
        $table->addFieldInfo('hidden', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('locked', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('locktime', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('exported', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('overridden', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('excluded', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('feedback', XMLDB_TYPE_TEXT, 'medium', null, null, null, null, null, null);
        $table->addFieldInfo('feedbackformat', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('information', XMLDB_TYPE_TEXT, 'medium', null, null, null, null, null, null);
        $table->addFieldInfo('informationformat', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('timecreated', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('timemodified', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        /// Adding keys to table grade_grades
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addKeyInfo('itemid', XMLDB_KEY_FOREIGN, array('itemid'), 'grade_items', array('id'));
        $table->addKeyInfo('userid', XMLDB_KEY_FOREIGN, array('userid'), 'user', array('id'));
        $table->addKeyInfo('rawscaleid', XMLDB_KEY_FOREIGN, array('rawscaleid'), 'scale', array('id'));
        $table->addKeyInfo('usermodified', XMLDB_KEY_FOREIGN, array('usermodified'), 'user', array('id'));
        /// Adding indexes to table grade_grades
        $table->addIndexInfo('locked-locktime', XMLDB_INDEX_NOTUNIQUE, array('locked', 'locktime'));
        /// Launch create table for grade_grades
        $result = $result && create_table($table);
        /// Define table grade_outcomes_history to be created
        $table = new XMLDBTable('grade_outcomes_history');
        /// Adding fields to table grade_outcomes_history
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('action', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('oldid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('source', XMLDB_TYPE_CHAR, '255', null, null, null, null, null, null);
        $table->addFieldInfo('timemodified', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('loggeduser', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('courseid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('shortname', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('fullname', XMLDB_TYPE_TEXT, 'small', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('scaleid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('description', XMLDB_TYPE_TEXT, 'small', null, null, null, null, null, null);
        /// Adding keys to table grade_outcomes_history
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addKeyInfo('oldid', XMLDB_KEY_FOREIGN, array('oldid'), 'grade_outcomes', array('id'));
        $table->addKeyInfo('courseid', XMLDB_KEY_FOREIGN, array('courseid'), 'course', array('id'));
        $table->addKeyInfo('scaleid', XMLDB_KEY_FOREIGN, array('scaleid'), 'scale', array('id'));
        $table->addKeyInfo('loggeduser', XMLDB_KEY_FOREIGN, array('loggeduser'), 'user', array('id'));
        /// Adding indexes to table grade_outcomes_history
        $table->addIndexInfo('action', XMLDB_INDEX_NOTUNIQUE, array('action'));
        /// Launch create table for grade_outcomes_history
        $result = $result && create_table($table);
        /// Define table grade_categories_history to be created
        $table = new XMLDBTable('grade_categories_history');
        /// Adding fields to table grade_categories_history
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('action', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('oldid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('source', XMLDB_TYPE_CHAR, '255', null, null, null, null, null, null);
        $table->addFieldInfo('timemodified', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('loggeduser', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('courseid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('parent', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('depth', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('path', XMLDB_TYPE_CHAR, '255', null, null, null, null, null, null);
        $table->addFieldInfo('fullname', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('aggregation', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('keephigh', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('droplow', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('aggregateonlygraded', XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('aggregateoutcomes', XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('aggregatesubcats', XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        /// Adding keys to table grade_categories_history
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addKeyInfo('oldid', XMLDB_KEY_FOREIGN, array('oldid'), 'grade_categories', array('id'));
        $table->addKeyInfo('courseid', XMLDB_KEY_FOREIGN, array('courseid'), 'course', array('id'));
        $table->addKeyInfo('parent', XMLDB_KEY_FOREIGN, array('parent'), 'grade_categories', array('id'));
        $table->addKeyInfo('loggeduser', XMLDB_KEY_FOREIGN, array('loggeduser'), 'user', array('id'));
        /// Adding indexes to table grade_categories_history
        $table->addIndexInfo('action', XMLDB_INDEX_NOTUNIQUE, array('action'));
        /// Launch create table for grade_categories_history
        $result = $result && create_table($table);
        /// Define table grade_items_history to be created
        $table = new XMLDBTable('grade_items_history');
        /// Adding fields to table grade_items_history
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('action', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('oldid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('source', XMLDB_TYPE_CHAR, '255', null, null, null, null, null, null);
        $table->addFieldInfo('timemodified', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('loggeduser', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('courseid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('categoryid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('itemname', XMLDB_TYPE_CHAR, '255', null, null, null, null, null, null);
        $table->addFieldInfo('itemtype', XMLDB_TYPE_CHAR, '30', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('itemmodule', XMLDB_TYPE_CHAR, '30', null, null, null, null, null, null);
        $table->addFieldInfo('iteminstance', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('itemnumber', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('iteminfo', XMLDB_TYPE_TEXT, 'medium', null, null, null, null, null, null);
        $table->addFieldInfo('idnumber', XMLDB_TYPE_CHAR, '255', null, null, null, null, null, null);
        $table->addFieldInfo('calculation', XMLDB_TYPE_TEXT, 'medium', null, null, null, null, null, null);
        $table->addFieldInfo('gradetype', XMLDB_TYPE_INTEGER, '4', null, XMLDB_NOTNULL, null, null, null, '1');
        $table->addFieldInfo('grademax', XMLDB_TYPE_NUMBER, '10, 5', null, XMLDB_NOTNULL, null, null, null, '100');
        $table->addFieldInfo('grademin', XMLDB_TYPE_NUMBER, '10, 5', null, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('scaleid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('outcomeid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('gradepass', XMLDB_TYPE_NUMBER, '10, 5', null, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('multfactor', XMLDB_TYPE_NUMBER, '10, 5', null, XMLDB_NOTNULL, null, null, null, '1.0');
        $table->addFieldInfo('plusfactor', XMLDB_TYPE_NUMBER, '10, 5', null, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('aggregationcoef', XMLDB_TYPE_NUMBER, '10, 5', null, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('sortorder', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('display', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('decimals', XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('hidden', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('locked', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('locktime', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('needsupdate', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null, null, '0');
        /// Adding keys to table grade_items_history
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addKeyInfo('oldid', XMLDB_KEY_FOREIGN, array('oldid'), 'grade_items', array('id'));
        $table->addKeyInfo('courseid', XMLDB_KEY_FOREIGN, array('courseid'), 'course', array('id'));
        $table->addKeyInfo('categoryid', XMLDB_KEY_FOREIGN, array('categoryid'), 'grade_categories', array('id'));
        $table->addKeyInfo('scaleid', XMLDB_KEY_FOREIGN, array('scaleid'), 'scale', array('id'));
        $table->addKeyInfo('outcomeid', XMLDB_KEY_FOREIGN, array('outcomeid'), 'grade_outcomes', array('id'));
        $table->addKeyInfo('loggeduser', XMLDB_KEY_FOREIGN, array('loggeduser'), 'user', array('id'));
        /// Adding indexes to table grade_items_history
        $table->addIndexInfo('action', XMLDB_INDEX_NOTUNIQUE, array('action'));
        /// Launch create table for grade_items_history
        $result = $result && create_table($table);
        /// Define table grade_grades_history to be created
        $table = new XMLDBTable('grade_grades_history');
        /// Adding fields to table grade_grades_history
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('action', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('oldid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('source', XMLDB_TYPE_CHAR, '255', null, null, null, null, null, null);
        $table->addFieldInfo('timemodified', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('loggeduser', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('itemid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('userid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('rawgrade', XMLDB_TYPE_NUMBER, '10, 5', null, null, null, null, null, null);
        $table->addFieldInfo('rawgrademax', XMLDB_TYPE_NUMBER, '10, 5', null, XMLDB_NOTNULL, null, null, null, '100');
        $table->addFieldInfo('rawgrademin', XMLDB_TYPE_NUMBER, '10, 5', null, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('rawscaleid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('usermodified', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('finalgrade', XMLDB_TYPE_NUMBER, '10, 5', null, null, null, null, null, null);
        $table->addFieldInfo('hidden', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('locked', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('locktime', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('exported', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('overridden', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('excluded', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('feedback', XMLDB_TYPE_TEXT, 'medium', null, null, null, null, null, null);
        $table->addFieldInfo('feedbackformat', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('information', XMLDB_TYPE_TEXT, 'medium', null, null, null, null, null, null);
        $table->addFieldInfo('informationformat', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        /// Adding keys to table grade_grades_history
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addKeyInfo('oldid', XMLDB_KEY_FOREIGN, array('oldid'), 'grade_grades', array('id'));
        $table->addKeyInfo('itemid', XMLDB_KEY_FOREIGN, array('itemid'), 'grade_items', array('id'));
        $table->addKeyInfo('userid', XMLDB_KEY_FOREIGN, array('userid'), 'user', array('id'));
        $table->addKeyInfo('rawscaleid', XMLDB_KEY_FOREIGN, array('rawscaleid'), 'scale', array('id'));
        $table->addKeyInfo('usermodified', XMLDB_KEY_FOREIGN, array('usermodified'), 'user', array('id'));
        $table->addKeyInfo('loggeduser', XMLDB_KEY_FOREIGN, array('loggeduser'), 'user', array('id'));
        /// Adding indexes to table grade_grades_history
        $table->addIndexInfo('action', XMLDB_INDEX_NOTUNIQUE, array('action'));
        /// Launch create table for grade_grades_history
        $result = $result && create_table($table);
        /// Define table scale_history to be created
        $table = new XMLDBTable('scale_history');
        /// Adding fields to table scale_history
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('action', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('oldid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('source', XMLDB_TYPE_CHAR, '255', null, null, null, null, null, null);
        $table->addFieldInfo('timemodified', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('loggeduser', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('courseid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('userid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('name', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('scale', XMLDB_TYPE_TEXT, 'small', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('description', XMLDB_TYPE_TEXT, 'small', null, XMLDB_NOTNULL, null, null, null, null);
        /// Adding keys to table scale_history
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addKeyInfo('oldid', XMLDB_KEY_FOREIGN, array('oldid'), 'scale', array('id'));
        $table->addKeyInfo('courseid', XMLDB_KEY_FOREIGN, array('courseid'), 'course', array('id'));
        $table->addKeyInfo('loggeduser', XMLDB_KEY_FOREIGN, array('loggeduser'), 'user', array('id'));
        /// Adding indexes to table scale_history
        $table->addIndexInfo('action', XMLDB_INDEX_NOTUNIQUE, array('action'));
        /// Launch create table for scale_history
        $result = $result && create_table($table);
        /// upgrade the old 1.8 gradebook - migrade data into new grade tables
        if ($result) {
            if ($rs = get_recordset('course')) {
                while ($course = rs_fetch_next_record($rs)) {
                    // this function uses SQL only, it must not be changed after 1.9 goes stable!!
                    if (!upgrade_18_gradebook($course->id)) {
                        $result = false;
                        break;
                    }
                }
                rs_close($rs);
            }
        }
        upgrade_main_savepoint($result, 2007072200);
    }
    if ($result && $oldversion < 2007072400) {
        /// Dropping one DEFAULT in a TEXT column. It's was only one remaining
        /// since Moodle 1.7, so new servers won't have those anymore.
        /// Changing the default of field sessdata on table sessions2 to drop it
        $table = new XMLDBTable('sessions2');
        $field = new XMLDBField('sessdata');
        $field->setAttributes(XMLDB_TYPE_TEXT, 'big', null, null, null, null, null, null, 'modified');
        /// Launch change of default for field sessdata
        $result = $result && change_field_default($table, $field);
        upgrade_main_savepoint($result, 2007072400);
    }
    if ($result && $oldversion < 2007073100) {
        /// Define table grade_outcomes_courses to be created
        $table = new XMLDBTable('grade_outcomes_courses');
        /// Adding fields to table grade_outcomes_courses
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('courseid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('outcomeid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        /// Adding keys to table grade_outcomes_courses
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addKeyInfo('courseid', XMLDB_KEY_FOREIGN, array('courseid'), 'course', array('id'));
        $table->addKeyInfo('outcomeid', XMLDB_KEY_FOREIGN, array('outcomeid'), 'grade_outcomes', array('id'));
        $table->addKeyInfo('courseid-outcomeid', XMLDB_KEY_UNIQUE, array('courseid', 'outcomeid'));
        /// Launch create table for grade_outcomes_courses
        $result = $result && create_table($table);
        upgrade_main_savepoint($result, 2007073100);
    }
    if ($result && $oldversion < 2007073101) {
        // Add new tag tables
        /// Define table tag to be created
        $table = new XMLDBTable('tag');
        /// Adding fields to table tag
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('userid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('name', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('tagtype', XMLDB_TYPE_CHAR, '255', null, null, null, null, null, null);
        $table->addFieldInfo('description', XMLDB_TYPE_TEXT, 'small', null, null, null, null, null, null);
        $table->addFieldInfo('descriptionformat', XMLDB_TYPE_INTEGER, '2', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('flag', XMLDB_TYPE_INTEGER, '4', XMLDB_UNSIGNED, null, null, null, null, '0');
        $table->addFieldInfo('timemodified', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        /// Adding keys to table tag
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        /// Adding indexes to table tag
        $table->addIndexInfo('name', XMLDB_INDEX_UNIQUE, array('name'));
        /// Launch create table for tag
        $result = $result && create_table($table);
        /// Define table tag_correlation to be created
        $table = new XMLDBTable('tag_correlation');
        /// Adding fields to table tag_correlation
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('tagid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('correlatedtags', XMLDB_TYPE_TEXT, 'small', null, XMLDB_NOTNULL, null, null, null, null);
        /// Adding keys to table tag_correlation
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        /// Adding indexes to table tag_correlation
        $table->addIndexInfo('tagid', XMLDB_INDEX_UNIQUE, array('tagid'));
        /// Launch create table for tag_correlation
        $result = $result && create_table($table);
        /// Define table tag_instance to be created
        $table = new XMLDBTable('tag_instance');
        /// Adding fields to table tag_instance
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('tagid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('itemtype', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('itemid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null, null, null);
        /// Adding keys to table tag_instance
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        /// Adding indexes to table tag_instance
        $table->addIndexInfo('tagiditem', XMLDB_INDEX_NOTUNIQUE, array('tagid', 'itemtype', 'itemid'));
        /// Launch create table for tag_instance
        $result = $result && create_table($table);
        upgrade_main_savepoint($result, 2007073101);
    }
    if ($result && $oldversion < 2007073103) {
        /// Define field rawname to be added to tag
        $table = new XMLDBTable('tag');
        $field = new XMLDBField('rawname');
        $field->setAttributes(XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, null, null, 'name');
        /// Launch add field rawname
        $result = $result && add_field($table, $field);
        upgrade_main_savepoint($result, 2007073103);
    }
    if ($result && $oldversion < 2007073105) {
        /// Define field description to be added to grade_outcomes
        $table = new XMLDBTable('grade_outcomes');
        $field = new XMLDBField('description');
        if (!field_exists($table, $field)) {
            $field->setAttributes(XMLDB_TYPE_TEXT, 'small', null, null, null, null, null, null, 'scaleid');
            /// Launch add field description
            $result = $result && add_field($table, $field);
        }
        $table = new XMLDBTable('grade_outcomes_history');
        $field = new XMLDBField('description');
        if (!field_exists($table, $field)) {
            $field->setAttributes(XMLDB_TYPE_TEXT, 'small', null, null, null, null, null, null, 'scaleid');
            /// Launch add field description
            $result = $result && add_field($table, $field);
        }
        upgrade_main_savepoint($result, 2007073105);
    }
    // adding unique contraint on (courseid,shortname) of an outcome
    if ($result && $oldversion < 2007080100) {
        /// Define key courseid-shortname (unique) to be added to grade_outcomes
        $table = new XMLDBTable('grade_outcomes');
        $key = new XMLDBKey('courseid-shortname');
        $key->setAttributes(XMLDB_KEY_UNIQUE, array('courseid', 'shortname'));
        /// Launch add key courseid-shortname
        $result = $result && add_key($table, $key);
        upgrade_main_savepoint($result, 2007080100);
    }
    /// originally there was supportname and supportemail upgrade code - this is handled in upgradesettings.php instead
    if ($result && $oldversion < 2007080202) {
        /// Define index tagiditem (not unique) to be dropped form tag_instance
        $table = new XMLDBTable('tag_instance');
        $index = new XMLDBIndex('tagiditem');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('tagid', 'itemtype', 'itemid'));
        /// Launch drop index tagiditem
        drop_index($table, $index);
        /// Define index tagiditem (unique) to be added to tag_instance
        $table = new XMLDBTable('tag_instance');
        $index = new XMLDBIndex('tagiditem');
        $index->setAttributes(XMLDB_INDEX_UNIQUE, array('tagid', 'itemtype', 'itemid'));
        /// Launch add index tagiditem
        $result = $result && add_index($table, $index);
        upgrade_main_savepoint($result, 2007080202);
    }
    if ($result && $oldversion < 2007080300) {
        /// Define field aggregateoutcomes to be added to grade_categories
        $table = new XMLDBTable('grade_categories');
        $field = new XMLDBField('aggregateoutcomes');
        if (!field_exists($table, $field)) {
            $field->setAttributes(XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'droplow');
            /// Launch add field aggregateoutcomes
            $result = $result && add_field($table, $field);
        }
        /// Define field aggregateoutcomes to be added to grade_categories
        $table = new XMLDBTable('grade_categories_history');
        $field = new XMLDBField('aggregateoutcomes');
        if (!field_exists($table, $field)) {
            $field->setAttributes(XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'droplow');
            /// Launch add field aggregateoutcomes
            $result = $result && add_field($table, $field);
        }
        upgrade_main_savepoint($result, 2007080300);
    }
    if ($result && $oldversion < 2007080800) {
        /// Normalize course->shortname MDL-10026
        /// Changing precision of field shortname on table course to (100)
        $table = new XMLDBTable('course');
        $field = new XMLDBField('shortname');
        $field->setAttributes(XMLDB_TYPE_CHAR, '100', null, XMLDB_NOTNULL, null, null, null, null, 'fullname');
        /// Launch change of precision for field shortname
        $result = $result && change_field_precision($table, $field);
        upgrade_main_savepoint($result, 2007080800);
    }
    if ($result && $oldversion < 2007080900) {
        /// Add context.path & index
        $table = new XMLDBTable('context');
        $field = new XMLDBField('path');
        $field->setAttributes(XMLDB_TYPE_CHAR, '255', null, null, null, null, null, null, 'instanceid');
        $result = $result && add_field($table, $field);
        $table = new XMLDBTable('context');
        $index = new XMLDBIndex('path');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('path'));
        $result = $result && add_index($table, $index);
        /// Add context.depth
        $table = new XMLDBTable('context');
        $field = new XMLDBField('depth');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '2', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'path');
        $result = $result && add_field($table, $field);
        /// make sure the system context has proper data
        get_system_context(false);
        upgrade_main_savepoint($result, 2007080900);
    }
    if ($result && $oldversion < 2007080903) {
        /// Define index
        $table = new XMLDBTable('grade_grades');
        $index = new XMLDBIndex('locked-locktime');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('locked', 'locktime'));
        if (!index_exists($table, $index)) {
            /// Launch add index
            $result = $result && add_index($table, $index);
        }
        /// Define index
        $table = new XMLDBTable('grade_items');
        $index = new XMLDBIndex('locked-locktime');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('locked', 'locktime'));
        if (!index_exists($table, $index)) {
            /// Launch add index
            $result = $result && add_index($table, $index);
        }
        /// Define index itemtype-needsupdate (not unique) to be added to grade_items
        $table = new XMLDBTable('grade_items');
        $index = new XMLDBIndex('itemtype-needsupdate');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('itemtype', 'needsupdate'));
        if (!index_exists($table, $index)) {
            /// Launch add index itemtype-needsupdate
            $result = $result && add_index($table, $index);
        }
        /// Define index
        $table = new XMLDBTable('grade_items');
        $index = new XMLDBIndex('gradetype');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('gradetype'));
        if (!index_exists($table, $index)) {
            /// Launch add index
            $result = $result && add_index($table, $index);
        }
        upgrade_main_savepoint($result, 2007080903);
    }
    if ($result && $oldversion < 2007081000) {
        require_once $CFG->dirroot . '/question/upgrade.php';
        $result = $result && question_upgrade_context_etc();
        upgrade_main_savepoint($result, 2007081000);
    }
    if ($result && $oldversion < 2007081302) {
        $table = new XMLDBTable('groups');
        $field = new XMLDBField('password');
        if (field_exists($table, $field)) {
            /// 1.7.*/1.6.*/1.5.* - create 'groupings' and 'groupings_groups' + rename password to enrolmentkey
            /// or second run after fixing structure broken from 1.8.x
            $result = $result && upgrade_17_groups();
        } else {
            if (table_exists(new XMLDBTable('groups_groupings'))) {
                /// ELSE 'groups_groupings' table exists, this is 1.8.* properly upgraded
                $result = $result && upgrade_18_groups();
            } else {
                /// broken groups, failed 1.8.x upgrade
                upgrade_18_broken_groups();
                notify('Warning: failed groups upgrade detected! Unfortunately this problem ' . 'can not be fixed automatically. Mapping of groups to courses was lost, ' . 'you can either revert to backup from 1.7.x and run ugprade again or ' . 'continue and fill in the missing course ids into groups table manually.');
                $result = false;
            }
        }
        upgrade_main_savepoint($result, 2007081302);
    }
    if ($result && $oldversion < 2007081303) {
        /// Common groups upgrade for 1.8.* and 1.7.*/1.6.*..
        // delete not used fields
        $table = new XMLDBTable('groups');
        $field = new XMLDBField('theme');
        if (field_exists($table, $field)) {
            drop_field($table, $field);
        }
        $table = new XMLDBTable('groups');
        $field = new XMLDBField('lang');
        if (field_exists($table, $field)) {
            drop_field($table, $field);
        }
        /// Add groupingid field/f.key to 'course' table.
        $table = new XMLDBTable('course');
        $field = new XMLDBField('defaultgroupingid');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', $prev = 'groupmodeforce');
        $result = $result && add_field($table, $field);
        /// Add grouping ID, grouponly field/f.key to 'course_modules' table.
        $table = new XMLDBTable('course_modules');
        $field = new XMLDBField('groupingid');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', $prev = 'groupmode');
        $result = $result && add_field($table, $field);
        $table = new XMLDBTable('course_modules');
        $field = new XMLDBField('groupmembersonly');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '4', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', $prev = 'groupingid');
        $result = $result && add_field($table, $field);
        $table = new XMLDBTable('course_modules');
        $key = new XMLDBKey('groupingid');
        $key->setAttributes(XMLDB_KEY_FOREIGN, array('groupingid'), 'groupings', array('id'));
        $result = $result && add_key($table, $key);
        upgrade_main_savepoint($result, 2007081303);
    }
    if ($result && $oldversion < 2007082300) {
        /// Define field ordering to be added to tag_instance table
        $table = new XMLDBTable('tag_instance');
        $field = new XMLDBField('ordering');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'itemid');
        /// Launch add field rawname
        $result = $result && add_field($table, $field);
        upgrade_main_savepoint($result, 2007082300);
    }
    if ($result && $oldversion < 2007082700) {
        /// Define field timemodified to be added to tag_instance
        $table = new XMLDBTable('tag_instance');
        $field = new XMLDBField('timemodified');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'ordering');
        /// Launch add field timemodified
        $result = $result && add_field($table, $field);
        upgrade_main_savepoint($result, 2007082700);
    }
    /// migrate all tags table to tag - this code MUST use SQL only,
    /// because if the db structure changes the library functions will fail in future
    if ($result && $oldversion < 2007082701) {
        $tagrefs = array();
        // $tagrefs[$oldtagid] = $newtagid
        if ($rs = get_recordset('tags')) {
            $db->debug = false;
            while ($oldtag = rs_fetch_next_record($rs)) {
                $raw_normalized = clean_param($oldtag->text, PARAM_TAG);
                $normalized = moodle_strtolower($raw_normalized);
                // if this tag does not exist in tag table yet
                if (!($newtag = get_record('tag', 'name', addslashes($normalized), '', '', '', '', 'id'))) {
                    $itag = new object();
                    $itag->name = $normalized;
                    $itag->rawname = $raw_normalized;
                    $itag->userid = $oldtag->userid;
                    $itag->timemodified = time();
                    $itag->descriptionformat = 0;
                    // default format
                    if ($oldtag->type == 'official') {
                        $itag->tagtype = 'official';
                    } else {
                        $itag->tagtype = 'default';
                    }
                    if ($idx = insert_record('tag', addslashes_recursive($itag))) {
                        $tagrefs[$oldtag->id] = $idx;
                    }
                    // if this tag is already used by tag table
                } else {
                    $tagrefs[$oldtag->id] = $newtag->id;
                }
            }
            $db->debug = true;
            rs_close($rs);
        }
        // fetch all the tag instances and migrate them as well
        if ($rs = get_recordset('blog_tag_instance')) {
            $db->debug = false;
            while ($blogtag = rs_fetch_next_record($rs)) {
                if (array_key_exists($blogtag->tagid, $tagrefs)) {
                    $tag_instance = new object();
                    $tag_instance->tagid = $tagrefs[$blogtag->tagid];
                    $tag_instance->itemtype = 'blog';
                    $tag_instance->itemid = $blogtag->entryid;
                    $tag_instance->ordering = 1;
                    // does not matter much, because originally there was no ordering in blogs
                    $tag_instance->timemodified = time();
                    insert_record('tag_instance', $tag_instance);
                }
            }
            $db->debug = true;
            rs_close($rs);
        }
        unset($tagrefs);
        // release memory
        $table = new XMLDBTable('tags');
        drop_table($table);
        $table = new XMLDBTable('blog_tag_instance');
        drop_table($table);
        upgrade_main_savepoint($result, 2007082701);
    }
    /// MDL-11015, MDL-11016
    if ($result && $oldversion < 2007082800) {
        /// Changing type of field userid on table tag to int
        $table = new XMLDBTable('tag');
        $field = new XMLDBField('userid');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null, 'id');
        /// Launch change of type for field userid
        $result = $result && change_field_type($table, $field);
        /// Changing type of field descriptionformat on table tag to int
        $table = new XMLDBTable('tag');
        $field = new XMLDBField('descriptionformat');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '2', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'description');
        /// Launch change of type for field descriptionformat
        $result = $result && change_field_type($table, $field);
        /// Define key userid (foreign) to be added to tag
        $table = new XMLDBTable('tag');
        $key = new XMLDBKey('userid');
        $key->setAttributes(XMLDB_KEY_FOREIGN, array('userid'), 'user', array('id'));
        /// Launch add key userid
        $result = $result && add_key($table, $key);
        /// Define index tagiditem (unique) to be dropped form tag_instance
        $table = new XMLDBTable('tag_instance');
        $index = new XMLDBIndex('tagiditem');
        $index->setAttributes(XMLDB_INDEX_UNIQUE, array('tagid', 'itemtype', 'itemid'));
        /// Launch drop index tagiditem
        $result = $result && drop_index($table, $index);
        /// Changing type of field tagid on table tag_instance to int
        $table = new XMLDBTable('tag_instance');
        $field = new XMLDBField('tagid');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null, 'id');
        /// Launch change of type for field tagid
        $result = $result && change_field_type($table, $field);
        /// Define key tagid (foreign) to be added to tag_instance
        $table = new XMLDBTable('tag_instance');
        $key = new XMLDBKey('tagid');
        $key->setAttributes(XMLDB_KEY_FOREIGN, array('tagid'), 'tag', array('id'));
        /// Launch add key tagid
        $result = $result && add_key($table, $key);
        /// Changing sign of field itemid on table tag_instance to unsigned
        $table = new XMLDBTable('tag_instance');
        $field = new XMLDBField('itemid');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null, 'itemtype');
        /// Launch change of sign for field itemid
        $result = $result && change_field_unsigned($table, $field);
        /// Changing sign of field ordering on table tag_instance to unsigned
        $table = new XMLDBTable('tag_instance');
        $field = new XMLDBField('ordering');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null, 'itemid');
        /// Launch change of sign for field ordering
        $result = $result && change_field_unsigned($table, $field);
        /// Define index itemtype-itemid-tagid (unique) to be added to tag_instance
        $table = new XMLDBTable('tag_instance');
        $index = new XMLDBIndex('itemtype-itemid-tagid');
        $index->setAttributes(XMLDB_INDEX_UNIQUE, array('itemtype', 'itemid', 'tagid'));
        /// Launch add index itemtype-itemid-tagid
        $result = $result && add_index($table, $index);
        /// Define index tagid (unique) to be dropped form tag_correlation
        $table = new XMLDBTable('tag_correlation');
        $index = new XMLDBIndex('tagid');
        $index->setAttributes(XMLDB_INDEX_UNIQUE, array('tagid'));
        /// Launch drop index tagid
        $result = $result && drop_index($table, $index);
        /// Changing type of field tagid on table tag_correlation to int
        $table = new XMLDBTable('tag_correlation');
        $field = new XMLDBField('tagid');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null, 'id');
        /// Launch change of type for field tagid
        $result = $result && change_field_type($table, $field);
        /// Define key tagid (foreign) to be added to tag_correlation
        $table = new XMLDBTable('tag_correlation');
        $key = new XMLDBKey('tagid');
        $key->setAttributes(XMLDB_KEY_FOREIGN, array('tagid'), 'tag', array('id'));
        /// Launch add key tagid
        $result = $result && add_key($table, $key);
        upgrade_main_savepoint($result, 2007082800);
    }
    if ($result && $oldversion < 2007082801) {
        /// Define table user_private_key to be created
        $table = new XMLDBTable('user_private_key');
        /// Adding fields to table user_private_key
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('script', XMLDB_TYPE_CHAR, '128', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('value', XMLDB_TYPE_CHAR, '128', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('userid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('instance', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('iprestriction', XMLDB_TYPE_CHAR, '255', null, null, null, null, null, null);
        $table->addFieldInfo('validuntil', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('timecreated', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        /// Adding keys to table user_private_key
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addKeyInfo('userid', XMLDB_KEY_FOREIGN, array('userid'), 'user', array('id'));
        /// Adding indexes to table user_private_key
        $table->addIndexInfo('script-value', XMLDB_INDEX_NOTUNIQUE, array('script', 'value'));
        /// Launch create table for user_private_key
        $result = $result && create_table($table);
        upgrade_main_savepoint($result, 2007082801);
    }
    /// Going to modify the applicationid from int(1) to int(10). Dropping and
    /// re-creating the associated keys/indexes is mandatory to be cross-db. MDL-11042
    if ($result && $oldversion < 2007082803) {
        /// Define key applicationid (foreign) to be dropped form mnet_host
        $table = new XMLDBTable('mnet_host');
        $key = new XMLDBKey('applicationid');
        $key->setAttributes(XMLDB_KEY_FOREIGN, array('applicationid'), 'mnet_application', array('id'));
        /// Launch drop key applicationid
        $result = $result && drop_key($table, $key);
        /// Changing type of field applicationid on table mnet_host to int
        $field = new XMLDBField('applicationid');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '1', 'last_log_id');
        /// Launch change of type for field applicationid
        $result = $result && change_field_type($table, $field);
        /// Define key applicationid (foreign) to be added to mnet_host
        $key = new XMLDBKey('applicationid');
        $key->setAttributes(XMLDB_KEY_FOREIGN, array('applicationid'), 'mnet_application', array('id'));
        /// Launch add key applicationid
        $result = $result && add_key($table, $key);
        upgrade_main_savepoint($result, 2007082803);
    }
    if ($result && $oldversion < 2007090503) {
        /// Define field aggregatesubcats to be added to grade_categories
        $table = new XMLDBTable('grade_categories');
        $field = new XMLDBField('aggregatesubcats');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'aggregateoutcomes');
        if (!field_exists($table, $field)) {
            /// Launch add field aggregateonlygraded
            $result = $result && add_field($table, $field);
        }
        /// Define field aggregateonlygraded to be added to grade_categories
        $table = new XMLDBTable('grade_categories');
        $field = new XMLDBField('aggregateonlygraded');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'droplow');
        if (!field_exists($table, $field)) {
            /// Launch add field aggregateonlygraded
            $result = $result && add_field($table, $field);
        }
        /// Define field aggregatesubcats to be added to grade_categories_history
        $table = new XMLDBTable('grade_categories_history');
        $field = new XMLDBField('aggregatesubcats');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'aggregateoutcomes');
        if (!field_exists($table, $field)) {
            /// Launch add field aggregateonlygraded
            $result = $result && add_field($table, $field);
        }
        /// Define field aggregateonlygraded to be added to grade_categories_history
        $table = new XMLDBTable('grade_categories_history');
        $field = new XMLDBField('aggregateonlygraded');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'droplow');
        if (!field_exists($table, $field)) {
            /// Launch add field aggregateonlygraded
            $result = $result && add_field($table, $field);
        }
        /// upgrade path in grade_categrories table - now using slash on both ends
        $concat = sql_concat('path', "'/'");
        $sql = "UPDATE {$CFG->prefix}grade_categories SET path = {$concat} WHERE path NOT LIKE '/%/'";
        execute_sql($sql, true);
        /// convert old aggregation constants if needed
        /*for ($i=0; $i<=12; $i=$i+2) {
              $j = $i+1;
              $sql = "UPDATE {$CFG->prefix}grade_categories SET aggregation = $i, aggregateonlygraded = 1 WHERE aggregation = $j";
              execute_sql($sql, true);
          }*/
        // not needed anymore - breaks upgrade now
        upgrade_main_savepoint($result, 2007090503);
    }
    /// To have UNIQUE indexes over NULLable columns isn't cross-db at all
    /// so we create a non unique index and programatically enforce uniqueness
    if ($result && $oldversion < 2007090600) {
        /// Define index idnumber (unique) to be dropped form course_modules
        $table = new XMLDBTable('course_modules');
        $index = new XMLDBIndex('idnumber');
        $index->setAttributes(XMLDB_INDEX_UNIQUE, array('idnumber'));
        /// Launch drop index idnumber
        $result = $result && drop_index($table, $index);
        /// Define index idnumber-course (not unique) to be added to course_modules
        $table = new XMLDBTable('course_modules');
        $index = new XMLDBIndex('idnumber-course');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('idnumber', 'course'));
        /// Launch add index idnumber-course
        $result = $result && add_index($table, $index);
        /// Define index idnumber-courseid (not unique) to be added to grade_items
        $table = new XMLDBTable('grade_items');
        $index = new XMLDBIndex('idnumber-courseid');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('idnumber', 'courseid'));
        /// Launch add index idnumber-courseid
        $result = $result && add_index($table, $index);
        upgrade_main_savepoint($result, 2007090600);
    }
    /// Create the permanent context_temp table to be used by build_context_path()
    if ($result && $oldversion < 2007092001) {
        /// Define table context_temp to be created
        $table = new XMLDBTable('context_temp');
        /// Adding fields to table context_temp
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('path', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('depth', XMLDB_TYPE_INTEGER, '2', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        /// Adding keys to table context_temp
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        /// Launch create table for context_temp
        $result = $result && create_table($table);
        /// make sure category depths, parents and paths are ok, categories from 1.5 may not be properly initialized (MDL-12585)
        upgrade_fix_category_depths();
        /// Recalculate depths, paths and so on
        if (!empty($CFG->rolesactive)) {
            cleanup_contexts();
            // make sure all course, category and user contexts exist - we need it for grade letter upgrade, etc.
            create_contexts(CONTEXT_COURSE, false, true);
            create_contexts(CONTEXT_USER, false, true);
            // we need all contexts path/depths filled properly
            build_context_path(true, true);
            load_all_capabilities();
        } else {
            // upgrade from 1.6 - build all contexts
            create_contexts(null, true, true);
        }
        upgrade_main_savepoint($result, 2007092001);
    }
    /**
     * Merging of grade_grades_text back into grade_grades
     */
    if ($result && $oldversion < 2007092002) {
        /// Define field feedback to be added to grade_grades
        $table = new XMLDBTable('grade_grades');
        $field = new XMLDBField('feedback');
        $field->setAttributes(XMLDB_TYPE_TEXT, 'medium', null, null, null, null, null, null, 'excluded');
        if (!field_exists($table, $field)) {
            /// Launch add field feedback
            $result = $result && add_field($table, $field);
        }
        /// Define field feedbackformat to be added to grade_grades
        $table = new XMLDBTable('grade_grades');
        $field = new XMLDBField('feedbackformat');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'feedback');
        if (!field_exists($table, $field)) {
            /// Launch add field feedbackformat
            $result = $result && add_field($table, $field);
        }
        /// Define field information to be added to grade_grades
        $table = new XMLDBTable('grade_grades');
        $field = new XMLDBField('information');
        $field->setAttributes(XMLDB_TYPE_TEXT, 'medium', null, null, null, null, null, null, 'feedbackformat');
        if (!field_exists($table, $field)) {
            /// Launch add field information
            $result = $result && add_field($table, $field);
        }
        /// Define field informationformat to be added to grade_grades
        $table = new XMLDBTable('grade_grades');
        $field = new XMLDBField('informationformat');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'information');
        if (!field_exists($table, $field)) {
            /// Launch add field informationformat
            $result = $result && add_field($table, $field);
        }
        /// Define field feedback to be added to grade_grades_history
        $table = new XMLDBTable('grade_grades_history');
        $field = new XMLDBField('feedback');
        $field->setAttributes(XMLDB_TYPE_TEXT, 'medium', null, null, null, null, null, null, 'excluded');
        if (!field_exists($table, $field)) {
            /// Launch add field feedback
            $result = $result && add_field($table, $field);
        }
        /// Define field feedbackformat to be added to grade_grades_history
        $table = new XMLDBTable('grade_grades_history');
        $field = new XMLDBField('feedbackformat');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'feedback');
        if (!field_exists($table, $field)) {
            /// Launch add field feedbackformat
            $result = $result && add_field($table, $field);
        }
        /// Define field information to be added to grade_grades_history
        $table = new XMLDBTable('grade_grades_history');
        $field = new XMLDBField('information');
        $field->setAttributes(XMLDB_TYPE_TEXT, 'medium', null, null, null, null, null, null, 'feedbackformat');
        if (!field_exists($table, $field)) {
            /// Launch add field information
            $result = $result && add_field($table, $field);
        }
        /// Define field informationformat to be added to grade_grades_history
        $table = new XMLDBTable('grade_grades_history');
        $field = new XMLDBField('informationformat');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'information');
        if (!field_exists($table, $field)) {
            /// Launch add field informationformat
            $result = $result && add_field($table, $field);
        }
        $table = new XMLDBTable('grade_grades_text');
        if ($result and table_exists($table)) {
            //migrade existing data into grade_grades table - this is slow but works for all dbs,
            //it will be executed on development sites only
            $fields = array('feedback', 'information');
            foreach ($fields as $field) {
                $sql = "UPDATE {$CFG->prefix}grade_grades\n                           SET {$field} = (\n                                SELECT {$field}\n                                  FROM {$CFG->prefix}grade_grades_text ggt\n                                 WHERE ggt.gradeid = {$CFG->prefix}grade_grades.id)";
                $result = execute_sql($sql) && $result;
            }
            $fields = array('feedbackformat', 'informationformat');
            foreach ($fields as $field) {
                $sql = "UPDATE {$CFG->prefix}grade_grades\n                           SET {$field} = COALESCE((\n                                SELECT {$field}\n                                  FROM {$CFG->prefix}grade_grades_text ggt\n                                 WHERE ggt.gradeid = {$CFG->prefix}grade_grades.id), 0)";
                $result = execute_sql($sql) && $result;
            }
            if ($result) {
                $tables = array('grade_grades_text', 'grade_grades_text_history');
                foreach ($tables as $table) {
                    $table = new XMLDBTable($table);
                    if (table_exists($table)) {
                        drop_table($table);
                    }
                }
            }
        }
        upgrade_main_savepoint($result, 2007092002);
    }
    if ($result && $oldversion < 2007092803) {
        /// Remove obsoleted unit tests tables - they will be recreated automatically
        $tables = array('grade_categories', 'scale', 'grade_items', 'grade_calculations', 'grade_grades', 'grade_grades_raw', 'grade_grades_final', 'grade_grades_text', 'grade_outcomes', 'grade_outcomes_courses');
        foreach ($tables as $tablename) {
            $table = new XMLDBTable('unittest_' . $tablename);
            if (table_exists($table)) {
                drop_table($table);
            }
            $table = new XMLDBTable('unittest_' . $tablename . '_history');
            if (table_exists($table)) {
                drop_table($table);
            }
        }
        /// Define field display to be added to grade_items
        $table = new XMLDBTable('grade_items');
        $field = new XMLDBField('display');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null, null, '0', 'sortorder');
        /// Launch add field display
        if (!field_exists($table, $field)) {
            $result = $result && add_field($table, $field);
        } else {
            $result = $result && change_field_default($table, $field);
        }
        /// Define field display to be added to grade_items_history
        $table = new XMLDBTable('grade_items_history');
        $field = new XMLDBField('display');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null, null, '0', 'sortorder');
        /// Launch add field display
        if (!field_exists($table, $field)) {
            $result = $result && add_field($table, $field);
        }
        /// Define field decimals to be added to grade_items
        $table = new XMLDBTable('grade_items');
        $field = new XMLDBField('decimals');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, null, null, null, null, null, 'display');
        /// Launch add field decimals
        if (!field_exists($table, $field)) {
            $result = $result && add_field($table, $field);
        } else {
            $result = $result && change_field_default($table, $field);
            $result = $result && change_field_notnull($table, $field);
        }
        /// Define field decimals to be added to grade_items_history
        $table = new XMLDBTable('grade_items_history');
        $field = new XMLDBField('decimals');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, null, null, null, null, null, 'display');
        /// Launch add field decimals
        if (!field_exists($table, $field)) {
            $result = $result && add_field($table, $field);
        }
        /// fix incorrect -1 default for grade_item->display
        execute_sql("UPDATE {$CFG->prefix}grade_items SET display=0 WHERE display=-1");
        upgrade_main_savepoint($result, 2007092803);
    }
    /// migrade grade letters - we can not do this in normal grades upgrade becuase we need all course contexts
    if ($result && $oldversion < 2007092806) {
        $result = upgrade_18_letters();
        /// Define index contextidlowerboundary (not unique) to be added to grade_letters
        $table = new XMLDBTable('grade_letters');
        $index = new XMLDBIndex('contextid-lowerboundary');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('contextid', 'lowerboundary'));
        /// Launch add index contextidlowerboundary
        if (!index_exists($table, $index)) {
            $result = $result && add_index($table, $index);
        }
        upgrade_main_savepoint($result, 2007092806);
    }
    if ($result && $oldversion < 2007100100) {
        /// Define table cache_flags to be created
        $table = new XMLDBTable('cache_flags');
        /// Adding fields to table cache_flags
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('flagtype', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('name', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('timemodified', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('value', XMLDB_TYPE_TEXT, 'medium', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('expiry', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        /// Adding keys to table cache_flags
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        /*
         * Note: mysql can not create indexes on text fields larger than 333 chars! 
         */
        /// Adding indexes to table cache_flags
        $table->addIndexInfo('flagtype', XMLDB_INDEX_NOTUNIQUE, array('flagtype'));
        $table->addIndexInfo('name', XMLDB_INDEX_NOTUNIQUE, array('name'));
        /// Launch create table for cache_flags
        if (!table_exists($table)) {
            $result = $result && create_table($table);
        }
        upgrade_main_savepoint($result, 2007100100);
    }
    if ($result && $oldversion < 2007100300) {
        /// MNET stuff for roaming theme
        /// Define field force_theme to be added to mnet_host
        $table = new XMLDBTable('mnet_host');
        $field = new XMLDBField('force_theme');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'last_log_id');
        /// Launch add field force_theme
        $result = $result && add_field($table, $field);
        /// Define field theme to be added to mnet_host
        $table = new XMLDBTable('mnet_host');
        $field = new XMLDBField('theme');
        $field->setAttributes(XMLDB_TYPE_CHAR, '100', null, null, null, null, null, null, 'force_theme');
        /// Launch add field theme
        $result = $result && add_field($table, $field);
        upgrade_main_savepoint($result, 2007100300);
    }
    if ($result && $oldversion < 2007100301) {
        /// Define table cache_flags to be created
        $table = new XMLDBTable('cache_flags');
        $index = new XMLDBIndex('typename');
        if (index_exists($table, $index)) {
            $result = $result && drop_index($table, $index);
        }
        $table = new XMLDBTable('cache_flags');
        $index = new XMLDBIndex('flagtype');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('flagtype'));
        if (!index_exists($table, $index)) {
            $result = $result && add_index($table, $index);
        }
        $table = new XMLDBTable('cache_flags');
        $index = new XMLDBIndex('name');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('name'));
        if (!index_exists($table, $index)) {
            $result = $result && add_index($table, $index);
        }
        upgrade_main_savepoint($result, 2007100301);
    }
    if ($result && $oldversion < 2007100303) {
        /// Changing nullability of field summary on table course to null
        $table = new XMLDBTable('course');
        $field = new XMLDBField('summary');
        $field->setAttributes(XMLDB_TYPE_TEXT, 'small', null, null, null, null, null, null, 'idnumber');
        /// Launch change of nullability for field summary
        $result = $result && change_field_notnull($table, $field);
        upgrade_main_savepoint($result, 2007100303);
    }
    if ($result && $oldversion < 2007100500) {
        /// for dev sites - it is ok to do this repeatedly
        /// Changing nullability of field path on table context to null
        $table = new XMLDBTable('context');
        $field = new XMLDBField('path');
        $field->setAttributes(XMLDB_TYPE_CHAR, '255', null, null, null, null, null, null, 'instanceid');
        /// Launch change of nullability for field path
        $result = $result && change_field_notnull($table, $field);
        upgrade_main_savepoint($result, 2007100500);
    }
    if ($result && $oldversion < 2007100700) {
        /// first drop existing tables - we do not need any data from there
        $table = new XMLDBTable('grade_import_values');
        if (table_exists($table)) {
            drop_table($table);
        }
        $table = new XMLDBTable('grade_import_newitem');
        if (table_exists($table)) {
            drop_table($table);
        }
        /// Define table grade_import_newitem to be created
        $table = new XMLDBTable('grade_import_newitem');
        /// Adding fields to table grade_import_newitem
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('itemname', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('importcode', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('importer', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        /// Adding keys to table grade_import_newitem
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addKeyInfo('importer', XMLDB_KEY_FOREIGN, array('importer'), 'user', array('id'));
        /// Launch create table for grade_import_newitem
        $result = $result && create_table($table);
        /// Define table grade_import_values to be created
        $table = new XMLDBTable('grade_import_values');
        /// Adding fields to table grade_import_values
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('itemid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('newgradeitem', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('userid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('finalgrade', XMLDB_TYPE_NUMBER, '10, 5', null, null, null, null, null, null);
        $table->addFieldInfo('feedback', XMLDB_TYPE_TEXT, 'medium', null, null, null, null, null, null);
        $table->addFieldInfo('importcode', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('importer', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        /// Adding keys to table grade_import_values
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addKeyInfo('itemid', XMLDB_KEY_FOREIGN, array('itemid'), 'grade_items', array('id'));
        $table->addKeyInfo('newgradeitem', XMLDB_KEY_FOREIGN, array('newgradeitem'), 'grade_import_newitem', array('id'));
        $table->addKeyInfo('importer', XMLDB_KEY_FOREIGN, array('importer'), 'user', array('id'));
        /// Launch create table for grade_import_values
        $result = $result && create_table($table);
        upgrade_main_savepoint($result, 2007100700);
    }
    /// dropping context_rel table - not used anymore
    if ($result && $oldversion < 2007100800) {
        /// Define table context_rel to be dropped
        $table = new XMLDBTable('context_rel');
        /// Launch drop table for context_rel
        if (table_exists($table)) {
            drop_table($table);
        }
        upgrade_main_savepoint($result, 2007100800);
    }
    /// Truncate the text_cahe table and add new index
    if ($result && $oldversion < 2007100802) {
        /// Truncate the cache_text table
        execute_sql("TRUNCATE TABLE {$CFG->prefix}cache_text", true);
        /// Define index timemodified (not unique) to be added to cache_text
        $table = new XMLDBTable('cache_text');
        $index = new XMLDBIndex('timemodified');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('timemodified'));
        /// Launch add index timemodified
        $result = $result && add_index($table, $index);
        upgrade_main_savepoint($result, 2007100802);
    }
    /// newtable for gradebook settings per course
    if ($result && $oldversion < 2007100803) {
        /// Define table grade_settings to be created
        $table = new XMLDBTable('grade_settings');
        /// Adding fields to table grade_settings
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('courseid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('name', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('value', XMLDB_TYPE_TEXT, 'small', null, null, null, null, null, null);
        /// Adding keys to table grade_settings
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addKeyInfo('courseid', XMLDB_KEY_FOREIGN, array('courseid'), 'course', array('id'));
        /// Adding indexes to table grade_settings
        $table->addIndexInfo('courseid-name', XMLDB_INDEX_UNIQUE, array('courseid', 'name'));
        /// Launch create table for grade_settings
        $result = $result && create_table($table);
        upgrade_main_savepoint($result, 2007100803);
    }
    /// cleanup in user_lastaccess
    if ($result && $oldversion < 2007100902) {
        $sql = "DELETE\n                  FROM {$CFG->prefix}user_lastaccess\n                 WHERE NOT EXISTS (SELECT 'x'\n                                    FROM {$CFG->prefix}course c\n                                   WHERE c.id = {$CFG->prefix}user_lastaccess.courseid)";
        execute_sql($sql);
        upgrade_main_savepoint($result, 2007100902);
    }
    /// drop old gradebook tables
    if ($result && $oldversion < 2007100903) {
        $tables = array('grade_category', 'grade_item', 'grade_letter', 'grade_preferences', 'grade_exceptions');
        foreach ($tables as $table) {
            $table = new XMLDBTable($table);
            if (table_exists($table)) {
                drop_table($table);
            }
        }
        upgrade_main_savepoint($result, 2007100903);
    }
    if ($result && $oldversion < 2007101500 && !file_exists($CFG->dataroot . '/user')) {
        // Get list of users by browsing moodledata/user
        $oldusersdir = $CFG->dataroot . '/users';
        $folders = get_directory_list($oldusersdir, '', false, true, false);
        foreach ($folders as $userid) {
            $olddir = $oldusersdir . '/' . $userid;
            $files = get_directory_list($olddir);
            if (empty($files)) {
                continue;
            }
            // Create new user directory
            if (!($newdir = make_user_directory($userid))) {
                // some weird directory - do not stop the upgrade, just ignore it
                continue;
            }
            // Move contents of old directory to new one
            if (file_exists($olddir) && file_exists($newdir)) {
                foreach ($files as $file) {
                    copy($olddir . '/' . $file, $newdir . '/' . $file);
                }
            } else {
                notify("Could not move the contents of {$olddir} into {$newdir}!");
                $result = false;
                break;
            }
        }
        // Leave a README in old users directory
        $readmefilename = $oldusersdir . '/README.txt';
        if ($handle = fopen($readmefilename, 'w+b')) {
            if (!fwrite($handle, get_string('olduserdirectory'))) {
                // Could not write to the readme file. No cause for huge concern
                notify("Could not write to the README.txt file in {$readmefilename}.");
            }
            fclose($handle);
        } else {
            // Could not create the readme file. No cause for huge concern
            notify("Could not create the README.txt file in {$readmefilename}.");
        }
    }
    if ($result && $oldversion < 2007101502) {
        /// try to remove duplicate entries
        $SQL = "SELECT userid, itemid, COUNT(*)\n               FROM {$CFG->prefix}grade_grades\n               GROUP BY userid, itemid\n               HAVING COUNT( * ) >1";
        // duplicates found
        if ($rs = get_recordset_sql($SQL)) {
            if ($rs && $rs->RecordCount() > 0) {
                while ($dup = rs_fetch_next_record($rs)) {
                    if ($thisdups = get_records_sql("SELECT id FROM {$CFG->prefix}grade_grades \n                                                    WHERE itemid = {$dup->itemid} AND userid = {$dup->userid}\n                                                    ORDER BY timemodified DESC")) {
                        $processed = 0;
                        // keep the first one
                        foreach ($thisdups as $thisdup) {
                            if ($processed) {
                                // remove the duplicates
                                delete_records('grade_grades', 'id', $thisdup->id);
                            }
                            $processed++;
                        }
                    }
                }
                rs_close($rs);
            }
        }
        /// Define key userid-itemid (unique) to be added to grade_grades
        $table = new XMLDBTable('grade_grades');
        $key = new XMLDBKey('userid-itemid');
        $key->setAttributes(XMLDB_KEY_UNIQUE, array('userid', 'itemid'));
        /// Launch add key userid-itemid
        $result = $result && add_key($table, $key);
        /// Main savepoint reached
        upgrade_main_savepoint($result, 2007101502);
    }
    if ($result && $oldversion < 2007101505) {
        /// Changing precision of field dst_time on table timezone to (6)
        $table = new XMLDBTable('timezone');
        $field = new XMLDBField('dst_time');
        $field->setAttributes(XMLDB_TYPE_CHAR, '6', null, XMLDB_NOTNULL, null, null, null, '00:00', 'dst_skipweeks');
        /// Launch change of precision for field dst_time
        $result = $result && change_field_precision($table, $field);
        /// Changing precision of field std_time on table timezone to (6)
        $table = new XMLDBTable('timezone');
        $field = new XMLDBField('std_time');
        $field->setAttributes(XMLDB_TYPE_CHAR, '6', null, XMLDB_NOTNULL, null, null, null, '00:00', 'std_skipweeks');
        /// Launch change of precision for field std_time
        $result = $result && change_field_precision($table, $field);
        /// Main savepoint reached
        upgrade_main_savepoint($result, 2007101505);
    }
    if ($result && $oldversion < 2007101506) {
        /// CONTEXT_PERSONAL was never implemented - removing
        $sql = "DELETE\n                  FROM {$CFG->prefix}context\n                 WHERE contextlevel=20";
        execute_sql($sql);
        /// Main savepoint reached
        upgrade_main_savepoint($result, 2007101506);
    }
    if ($result && $oldversion < 2007101507) {
        $db->debug = false;
        require_once $CFG->dirroot . '/course/lib.php';
        notify('Started rebuilding of course cache...', 'notifysuccess');
        rebuild_course_cache();
        // Rebuild course cache - new group related fields there
        notify('...finished rebuilding of course cache.', 'notifysuccess');
        $db->debug = true;
        /// Main savepoint reached
        upgrade_main_savepoint($result, 2007101507);
    }
    if ($result && $oldversion < 2007101508) {
        $db->debug = false;
        notify('Updating country list according to recent official ISO listing...', 'notifysuccess');
        // re-assign users to valid countries
        set_field('user', 'country', 'CD', 'country', 'ZR');
        // Zaire is now Congo Democratique
        set_field('user', 'country', 'TL', 'country', 'TP');
        // Timor has changed
        set_field('user', 'country', 'FR', 'country', 'FX');
        // France metropolitaine doesn't exist
        set_field('user', 'country', 'RS', 'country', 'KO');
        // Kosovo is part of Serbia, "under the auspices of the United Nations, pursuant to UN Security Council Resolution 1244 of 10 June 1999."
        set_field('user', 'country', 'GB', 'country', 'WA');
        // Wales is part of UK (ie Great Britain)
        set_field('user', 'country', 'RS', 'country', 'CS');
        // Re-assign Serbia-Montenegro to Serbia.  This is arbitrary, but there is no way to make an automatic decision on this.
        notify('...update complete. Remember to update the language pack to get the most recent country names defitions and codes.  This is specialy important for sites with users from Congo (now CD), Timor (now TL), Kosovo (now RS), Wales (now GB), Serbia (RS) and Montenegro (ME).  Users based in Montenegro (ME) will need to manually update their profile.', 'notifysuccess');
        $db->debug = true;
        upgrade_main_savepoint($result, 2007101508);
    }
    if ($result && $oldversion < 2007101508.01) {
        // add forgotten table
        /// Define table scale_history to be created
        $table = new XMLDBTable('scale_history');
        /// Adding fields to table scale_history
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('action', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('oldid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('source', XMLDB_TYPE_CHAR, '255', null, null, null, null, null, null);
        $table->addFieldInfo('timemodified', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('loggeduser', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('courseid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('userid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('name', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('scale', XMLDB_TYPE_TEXT, 'small', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('description', XMLDB_TYPE_TEXT, 'small', null, XMLDB_NOTNULL, null, null, null, null);
        /// Adding keys to table scale_history
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addKeyInfo('oldid', XMLDB_KEY_FOREIGN, array('oldid'), 'scale', array('id'));
        $table->addKeyInfo('courseid', XMLDB_KEY_FOREIGN, array('courseid'), 'course', array('id'));
        $table->addKeyInfo('loggeduser', XMLDB_KEY_FOREIGN, array('loggeduser'), 'user', array('id'));
        /// Adding indexes to table scale_history
        $table->addIndexInfo('action', XMLDB_INDEX_NOTUNIQUE, array('action'));
        if ($result and !table_exists($table)) {
            /// Launch create table for scale_history
            $result = $result && create_table($table);
        }
        /// Main savepoint reached
        upgrade_main_savepoint($result, 2007101508.01);
    }
    if ($result && $oldversion < 2007101508.02) {
        // upgade totals, no big deal if it fails
        require_once $CFG->libdir . '/statslib.php';
        stats_upgrade_totals();
        if (isset($CFG->loglifetime) and $CFG->loglifetime == 30) {
            set_config('loglifetime', 35);
            // we need more than 31 days for monthly stats!
        }
        notify('Upgrading log table indexes, this may take a long time, please be patient.', 'notifysuccess');
        /// Define index time-course-module-action (not unique) to be dropped form log
        $table = new XMLDBTable('log');
        $index = new XMLDBIndex('time-course-module-action');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('time', 'course', 'module', 'action'));
        /// Launch drop index time-course-module-action
        if (index_exists($table, $index)) {
            $result = drop_index($table, $index) && $result;
        }
        /// Define index userid (not unique) to be dropped form log
        $table = new XMLDBTable('log');
        $index = new XMLDBIndex('userid');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('userid'));
        /// Launch drop index userid
        if (index_exists($table, $index)) {
            $result = drop_index($table, $index) && $result;
        }
        /// Define index info (not unique) to be dropped form log
        $table = new XMLDBTable('log');
        $index = new XMLDBIndex('info');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('info'));
        /// Launch drop index info
        if (index_exists($table, $index)) {
            $result = drop_index($table, $index) && $result;
        }
        /// Define index time (not unique) to be added to log
        $table = new XMLDBTable('log');
        $index = new XMLDBIndex('time');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('time'));
        /// Launch add index time
        if (!index_exists($table, $index)) {
            $result = add_index($table, $index) && $result;
        }
        /// Define index action (not unique) to be added to log
        $table = new XMLDBTable('log');
        $index = new XMLDBIndex('action');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('action'));
        /// Launch add index action
        if (!index_exists($table, $index)) {
            $result = add_index($table, $index) && $result;
        }
        /// Main savepoint reached
        upgrade_main_savepoint($result, 2007101508.02);
    }
    if ($result && $oldversion < 2007101508.03) {
        /// Define index course-userid (not unique) to be dropped form log
        $table = new XMLDBTable('log');
        $index = new XMLDBIndex('course-userid');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('course', 'userid'));
        /// Launch drop index course-userid
        if (index_exists($table, $index)) {
            $result = $result && drop_index($table, $index);
        }
        /// Define index userid-course (not unique) to be added to log
        $table = new XMLDBTable('log');
        $index = new XMLDBIndex('userid-course');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('userid', 'course'));
        /// Launch add index userid-course
        if (!index_exists($table, $index)) {
            $result = $result && add_index($table, $index);
        }
        /// Main savepoint reached
        upgrade_main_savepoint($result, 2007101508.03);
    }
    if ($result && $oldversion < 2007101508.04) {
        set_field('tag_instance', 'itemtype', 'post', 'itemtype', 'blog');
        upgrade_main_savepoint($result, 2007101508.04);
    }
    if ($result && $oldversion < 2007101508.05) {
        /// Define index cmid (not unique) to be added to log
        $table = new XMLDBTable('log');
        $index = new XMLDBIndex('cmid');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('cmid'));
        /// Launch add index cmid
        if (!index_exists($table, $index)) {
            $result = $result && add_index($table, $index);
        }
        /// Main savepoint reached
        upgrade_main_savepoint($result, 2007101508.05);
    }
    if ($result && $oldversion < 2007101508.06) {
        /// Define index groupid-courseid-visible-userid (not unique) to be added to event
        $table = new XMLDBTable('event');
        $index = new XMLDBIndex('groupid-courseid-visible-userid');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('groupid', 'courseid', 'visible', 'userid'));
        /// Launch add index groupid-courseid-visible-userid
        if (!index_exists($table, $index)) {
            $result = $result && add_index($table, $index);
        }
        /// Main savepoint reached
        upgrade_main_savepoint($result, 2007101508.06);
    }
    if ($result && $oldversion < 2007101508.07) {
        /// Define table webdav_locks to be created
        $table = new XMLDBTable('webdav_locks');
        /// Adding fields to table webdav_locks
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('token', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('path', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('expiry', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('userid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('recursive', XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('exclusivelock', XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('created', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('modified', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('owner', XMLDB_TYPE_CHAR, '255', null, null, null, null, null, null);
        /// Adding keys to table webdav_locks
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addKeyInfo('token', XMLDB_KEY_UNIQUE, array('token'));
        /// Adding indexes to table webdav_locks
        $table->addIndexInfo('path', XMLDB_INDEX_NOTUNIQUE, array('path'));
        $table->addIndexInfo('expiry', XMLDB_INDEX_NOTUNIQUE, array('expiry'));
        /// Launch create table for webdav_locks
        $result = $result && create_table($table);
        /// Main savepoint reached
        upgrade_main_savepoint($result, 2007101508.07);
    }
    if ($result && $oldversion < 2007101508.08) {
        // MDL-13676
        /// Define field name to be added to role_names
        $table = new XMLDBTable('role_names');
        $field = new XMLDBField('name');
        $field->setAttributes(XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, null, null, 'text');
        /// Launch add field name
        $result = $result && add_field($table, $field);
        /// Copy data from old field to new field
        $result = $result && execute_sql('UPDATE ' . $CFG->prefix . 'role_names SET name = text');
        /// Define field text to be dropped from role_names
        $table = new XMLDBTable('role_names');
        $field = new XMLDBField('text');
        /// Launch drop field text
        $result = $result && drop_field($table, $field);
        /// Main savepoint reached
        upgrade_main_savepoint($result, 2007101508.08);
    }
    if ($result && $oldversion < 2007101509) {
        // force full regrading
        set_field('grade_items', 'needsupdate', 1, 'needsupdate', 0);
    }
    if ($result && $oldversion < 2007101510) {
        /// Fix minor problem caused by MDL-5482.
        require_once $CFG->dirroot . '/question/upgrade.php';
        $result = $result && question_fix_random_question_parents();
        upgrade_main_savepoint($result, 2007101510);
    }
    if ($result && $oldversion < 2007101511) {
        // if guest role used as default user role unset it and force admin to choose new setting
        if (!empty($CFG->defaultuserroleid)) {
            if ($role = get_record('role', 'id', $CFG->defaultuserroleid)) {
                if ($guestroles = get_roles_with_capability('moodle/legacy:guest', CAP_ALLOW)) {
                    if (isset($guestroles[$role->id])) {
                        set_config('defaultuserroleid', null);
                        notify('Guest role removed from "Default role for all users" setting, please select another role.', 'notifysuccess');
                    }
                }
            } else {
                set_config('defaultuserroleid', null);
            }
        }
    }
    if ($result && $oldversion < 2007101512) {
        notify('Increasing size of user idnumber field, this may take a while...', 'notifysuccess');
        /// Under MySQL and Postgres... detect old NULL contents and change them by correct empty string. MDL-14859
        if ($CFG->dbfamily == 'mysql' || $CFG->dbfamily == 'postgres') {
            execute_sql("UPDATE {$CFG->prefix}user SET idnumber = '' WHERE idnumber IS NULL", true);
        }
        /// Define index idnumber (not unique) to be dropped form user
        $table = new XMLDBTable('user');
        $index = new XMLDBIndex('idnumber');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('idnumber'));
        /// Launch drop index idnumber
        if (index_exists($table, $index)) {
            $result = $result && drop_index($table, $index);
        }
        /// Changing precision of field idnumber on table user to (255)
        $table = new XMLDBTable('user');
        $field = new XMLDBField('idnumber');
        $field->setAttributes(XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, null, null, 'password');
        /// Launch change of precision for field idnumber
        $result = $result && change_field_precision($table, $field);
        /// Launch add index idnumber again
        $index = new XMLDBIndex('idnumber');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('idnumber'));
        $result = $result && add_index($table, $index);
        /// Main savepoint reached
        upgrade_main_savepoint($result, 2007101512);
    }
    if ($result && $oldversion < 2007101513) {
        $log_action = new stdClass();
        $log_action->module = 'course';
        $log_action->action = 'unenrol';
        $log_action->mtable = 'course';
        $log_action->field = 'fullname';
        if (!record_exists("log_display", "action", "unenrol", "module", "course")) {
            $result = $result && insert_record('log_display', $log_action);
        }
        upgrade_main_savepoint($result, 2007101513);
    }
    if ($result && $oldversion < 2007101514) {
        $table = new XMLDBTable('mnet_enrol_course');
        $field = new XMLDBField('sortorder');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', true, true, null, false, false, 0);
        $result = change_field_precision($table, $field);
        upgrade_main_savepoint($result, 2007101514);
    }
    if ($result && $oldversion < 2007101515) {
        $result = delete_records_select('role_names', sql_isempty('role_names', 'name', false, false));
        upgrade_main_savepoint($result, 2007101515);
    }
    if ($result && $oldversion < 2007101517) {
        if (isset($CFG->defaultuserroleid) and isset($CFG->guestroleid) and $CFG->defaultuserroleid == $CFG->guestroleid) {
            // guest can not be selected in defaultuserroleid!
            unset_config('defaultuserroleid');
        }
        upgrade_main_savepoint($result, 2007101517);
    }
    if ($result && $oldversion < 2007101526) {
        /// Changing the default of field lang on table user to en_utf8
        $table = new XMLDBTable('user');
        $field = new XMLDBField('lang');
        $field->setAttributes(XMLDB_TYPE_CHAR, '30', null, XMLDB_NOTNULL, null, null, null, 'en_utf8', 'country');
        /// Launch change of default for field lang
        $result = $result && change_field_default($table, $field);
        /// Main savepoint reached
        upgrade_main_savepoint($result, 2007101526);
    }
    if ($result && $oldversion < 2007101527) {
        if (!get_config(NULL, 'statsruntimedays')) {
            set_config('statsruntimedays', '31');
        }
    }
    /// For MDL-17501. Ensure that any role that has moodle/course:update also
    /// has moodle/course:visibility.
    if ($result && $oldversion < 2007101532.1) {
        if (!empty($CFG->rolesactive)) {
            // In case we are upgrading from Moodle 1.6.
            /// Get the roles with 'moodle/course:update'.
            $systemcontext = get_context_instance(CONTEXT_SYSTEM);
            $roles = get_roles_with_capability('moodle/course:update', CAP_ALLOW, $systemcontext);
            /// Give those roles 'moodle/course:visibility'.
            foreach ($roles as $role) {
                assign_capability('moodle/course:visibility', CAP_ALLOW, $role->id, $systemcontext->id);
            }
            /// Force all sessions to refresh access data.
            mark_context_dirty($systemcontext->path);
        }
        /// Main savepoint reached
        upgrade_main_savepoint($result, 2007101532.1);
    }
    if ($result && $oldversion < 2007101542) {
        if (empty($CFG->hiddenuserfields)) {
            set_config('hiddenuserfields', 'firstaccess');
        } else {
            if (strpos($CFG->hiddenuserfields, 'firstaccess') === false) {
                //firstaccess should not already be listed but just in case
                set_config('hiddenuserfields', $CFG->hiddenuserfields . ',firstaccess');
            }
        }
        /// Main savepoint reached
        upgrade_main_savepoint($result, 2007101542);
    }
    if ($result && $oldversion < 2007101545.01) {
        require_once "{$CFG->dirroot}/filter/tex/lib.php";
        filter_tex_updatedcallback(null);
        /// Main savepoint reached
        upgrade_main_savepoint($result, 2007101545.01);
    }
    if ($result && $oldversion < 2007101546.02) {
        if (empty($CFG->gradebook_latest195_upgrade)) {
            require_once $CFG->libdir . '/gradelib.php';
            // we need constants only
            // reset current coef for simple mean items - it may contain some rubbish ;-)
            $sql = "UPDATE {$CFG->prefix}grade_items\n                       SET aggregationcoef = 0\n                     WHERE categoryid IN (SELECT gc.id\n                                            FROM {$CFG->prefix}grade_categories gc\n                                           WHERE gc.aggregation = " . GRADE_AGGREGATE_WEIGHTED_MEAN2 . ")";
            $result = execute_sql($sql);
        } else {
            // direct upgrade from 1.8.x - no need to reset coef, because it is already ok
            unset_config('gradebook_latest195_upgrade');
        }
        upgrade_main_savepoint($result, 2007101546.02);
    }
    if ($result && $oldversion < 2007101546.03) {
        /// Deleting orphaned messages from deleted users.
        require_once $CFG->dirroot . '/message/lib.php';
        /// Detect deleted users with messages sent(useridfrom) and not read
        if ($deletedusers = get_records_sql("SELECT DISTINCT u.id\n                                           FROM {$CFG->prefix}user u\n                                           JOIN {$CFG->prefix}message m ON m.useridfrom = u.id\n                                          WHERE u.deleted = 1")) {
            foreach ($deletedusers as $deleteduser) {
                message_move_userfrom_unread2read($deleteduser->id);
                // move messages
            }
        }
        /// Main savepoint reached
        upgrade_main_savepoint($result, 2007101546.03);
    }
    if ($result && $oldversion < 2007101546.05) {
        // force full regrading - the max grade for sum aggregation was not correct when scales involved,
        //                        extra credit grade is not dropped anymore in aggregations if drop low or keep high specified
        //                        sum aggragetion respects drop low and keep high when calculation max value
        set_field('grade_items', 'needsupdate', 1, 'needsupdate', 0);
    }
    if ($result && $oldversion < 2007101546.06) {
        unset_config('grade_report_showgroups');
        upgrade_main_savepoint($result, 2007101546.06);
    }
    if ($result && $oldversion < 2007101547) {
        // Let's check the status of mandatory mnet_host records, fixing them
        // and moving "orphan" users to default localhost record. MDL-16879
        notify('Fixing mnet records, this may take a while...', 'notifysuccess');
        $db->debug = false;
        // Can output too much. Disabling
        upgrade_fix_incorrect_mnethostids();
        $db->debug = true;
        // Restoring debug level
        upgrade_main_savepoint($result, 2007101547);
    }
    if ($result && $oldversion < 2007101551) {
        //insert new record for log_display table
        //used to record tag update.
        if (!record_exists("log_display", "action", "update", "module", "tag")) {
            $log_action = new stdClass();
            $log_action->module = 'tag';
            $log_action->action = 'update';
            $log_action->mtable = 'tag';
            $log_action->field = 'name';
            $result = $result && insert_record('log_display', $log_action);
        }
        upgrade_main_savepoint($result, 2007101551);
    }
    if ($result && $oldversion < 2007101561.01) {
        // As part of security changes password policy will now be enabled by default.
        // If it has not already been enabled then we will enable it... Admins will still
        // be able to switch it off after this upgrade
        if (record_exists('config', 'name', 'passwordpolicy', 'value', 0)) {
            unset_config('passwordpolicy');
        }
        $message = get_string('upgrade197notice', 'admin');
        if (empty($CFG->passwordmainsalt)) {
            $docspath = $CFG->docroot . '/' . str_replace('_utf8', '', current_language()) . '/report/security/report_security_check_passwordsaltmain';
            $message .= "\n" . get_string('upgrade197salt', 'admin', $docspath);
        }
        notify($message, 'notifysuccess');
        unset($message);
        upgrade_main_savepoint($result, 2007101561.01);
    }
    if ($result && $oldversion < 2007101561.02) {
        $messagesubject = s($SITE->shortname) . ': ' . get_string('upgrade197noticesubject', 'admin');
        $message = '<p>' . s($SITE->fullname) . ' (' . s($CFG->wwwroot) . '):</p>' . get_string('upgrade197notice', 'admin');
        if (empty($CFG->passwordmainsalt)) {
            $docspath = $CFG->docroot . '/' . str_replace('_utf8', '', current_language()) . '/report/security/report_security_check_passwordsaltmain';
            $message .= "\n" . get_string('upgrade197salt', 'admin', $docspath);
        }
        // Force administrators to change password on next login
        $systemcontext = get_context_instance(CONTEXT_SYSTEM);
        $sql = "SELECT DISTINCT u.id, u.firstname, u.lastname, u.picture, u.imagealt, u.email, u.password, u.mailformat\n              FROM {$CFG->prefix}role_capabilities rc\n              JOIN {$CFG->prefix}role_assignments ra ON (ra.contextid = rc.contextid AND ra.roleid = rc.roleid)\n              JOIN {$CFG->prefix}user u ON u.id = ra.userid\n             WHERE rc.capability = 'moodle/site:doanything'\n                   AND rc.permission = " . CAP_ALLOW . "\n                   AND u.deleted = 0\n                   AND rc.contextid = " . $systemcontext->id . " AND (u.auth='manual' OR u.auth='email')";
        $adminusers = get_records_sql($sql);
        foreach ($adminusers as $adminuser) {
            if ($preference = get_record('user_preferences', 'userid', $adminuser->id, 'name', 'auth_forcepasswordchange')) {
                if ($preference->value == '1') {
                    continue;
                }
                set_field('user_preferences', 'value', '1', 'id', $preference->id);
            } else {
                $preference = new stdClass();
                $preference->userid = $adminuser->id;
                $preference->name = 'auth_forcepasswordchange';
                $preference->value = '1';
                insert_record('user_preferences', $preference);
            }
            $adminuser->maildisplay = 0;
            // do not use return email to self, it might actually help emails to get through and prevents notices
            // Message them with the notice about upgrading
            email_to_user($adminuser, $adminuser, $messagesubject, html_to_text($message), $message);
        }
        unset($adminusers);
        unset($preference);
        unset($message);
        unset($messagesubject);
        upgrade_main_savepoint($result, 2007101561.02);
    }
    if ($result && $oldversion < 2007101563.02) {
        // this block tries to undo incorrect forcing of new passwords for admins that have no
        // way to change passwords MDL-20933
        $systemcontext = get_context_instance(CONTEXT_SYSTEM);
        $sql = "SELECT DISTINCT u.id, u.firstname, u.lastname, u.picture, u.imagealt, u.email, u.password\n                  FROM {$CFG->prefix}role_capabilities rc\n                  JOIN {$CFG->prefix}role_assignments ra ON (ra.contextid = rc.contextid AND ra.roleid = rc.roleid)\n                  JOIN {$CFG->prefix}user u ON u.id = ra.userid\n                 WHERE rc.capability = 'moodle/site:doanything'\n                       AND rc.permission = " . CAP_ALLOW . "\n                       AND u.deleted = 0\n                       AND rc.contextid = " . $systemcontext->id . " AND u.auth<>'manual' AND u.auth<>'email'";
        if ($adminusers = get_records_sql($sql)) {
            foreach ($adminusers as $adminuser) {
                delete_records('user_preferences', 'userid', $adminuser->id, 'name', 'auth_forcepasswordchange');
            }
        }
        unset($adminusers);
        upgrade_main_savepoint($result, 2007101563.02);
    }
    if ($result && $oldversion < 2007101563.03) {
        // NOTE: this is quite hacky, but anyway it should work fine in 1.9,
        //       in 2.0 we should always use plugin upgrade code for things like this
        $authsavailable = get_list_of_plugins('auth');
        foreach ($authsavailable as $authname) {
            if (!($auth = get_auth_plugin($authname))) {
                continue;
            }
            if ($auth->prevent_local_passwords()) {
                execute_sql("UPDATE {$CFG->prefix}user SET password='******' WHERE auth='{$authname}'");
            }
        }
        upgrade_main_savepoint($result, 2007101563.03);
    }
    return $result;
}
Esempio n. 21
0
function regenerateurls_submit(Pieform $form, $values)
{
    global $SESSION, $USER;
    require_once 'upgrade.php';
    log_debug("Regenerating clean urls...");
    db_begin();
    // Checking duplicates one by one is too slow, so drop the index,
    // generate the urlids in big chunks, remove duplicates in one hit,
    // recreate the index.
    // Users: set urlid based on username.
    $table = new XMLDBTable('usr');
    $index = new XMLDBIndex('urliduk');
    $index->setAttributes(XMLDB_INDEX_UNIQUE, array('urlid'));
    drop_index($table, $index);
    execute_sql('UPDATE {usr} SET urlid = NULL WHERE NOT urlid IS NULL');
    $usrcount = count_records_select('usr', 'deleted = 0 AND id > 0');
    $sql = 'SELECT id, username FROM {usr} WHERE id > ? AND deleted = 0 ORDER BY id';
    $done = 0;
    $lastid = 0;
    $limit = 1000;
    while ($records = get_records_sql_array($sql, array($lastid), 0, $limit)) {
        $firstid = $lastid;
        $values = array();
        foreach ($records as $r) {
            $r->urlid = generate_urlid($r->username, get_config('cleanurluserdefault'), 3, 30);
            array_push($values, $r->id, $r->urlid);
            $lastid = $r->id;
        }
        $updatesql = "UPDATE {usr} SET urlid = CASE id\n ";
        $updatesql .= join("\n ", array_fill(0, count($records), 'WHEN ? THEN ?'));
        $updatesql .= "\n ELSE NULL\n END WHERE id > ? AND id <= ? AND deleted = 0";
        array_push($values, $firstid, $lastid);
        execute_sql($updatesql, $values);
        $done += count($records);
        log_debug("Generating user urls: {$done}/{$usrcount}");
    }
    // Fix any duplicates created above
    $dupurls = get_records_sql_array('
        SELECT id, urlid
        FROM {usr}
        WHERE urlid IN (
            SELECT urlid FROM {usr} WHERE id > 0 AND deleted = 0 GROUP BY urlid HAVING COUNT(id) > 1
        )
        ORDER BY urlid, id', array());
    $last = null;
    if ($dupurls) {
        log_debug('Fixing ' . count($dupurls) . ' duplicate user urls');
        $ids = array();
        $values = array();
        for ($i = 0; $i < count($dupurls); $i++) {
            if ($dupurls[$i]->urlid != $last) {
                // The first user with this name can keep it, but get all the taken urlids that are similar
                // so we can check against them when appending digits below.
                $taken = get_column_sql("SELECT urlid FROM {usr} WHERE urlid LIKE ?", array(substr($dupurls[$i]->urlid, 0, 24) . '%'));
            } else {
                // Subsequent users need digits appended, while keeping the max length at 30
                $suffix = 1;
                $try = substr($dupurls[$i]->urlid, 0, 28) . '-1';
                while (in_array($try, $taken)) {
                    $suffix++;
                    $try = substr($dupurls[$i]->urlid, 0, 29 - strlen($suffix)) . '-' . $suffix;
                }
                $taken[] = $try;
                $ids[] = $dupurls[$i]->id;
                array_push($values, $dupurls[$i]->id, $try);
            }
            $last = $dupurls[$i]->urlid;
        }
        $updatesql = "UPDATE {usr} SET urlid = CASE id\n ";
        $updatesql .= join("\n ", array_fill(0, count($values) / 2, 'WHEN ? THEN ?'));
        $updatesql .= "\n ELSE urlid\n END\n WHERE id IN (";
        $updatesql .= join(',', array_fill(0, count($ids), '?'));
        $updatesql .= ')';
        $values = array_merge($values, $ids);
        execute_sql($updatesql, $values);
    }
    $table = new XMLDBTable('usr');
    $index = new XMLDBIndex('urliduk');
    $index->setAttributes(XMLDB_INDEX_UNIQUE, array('urlid'));
    add_index($table, $index);
    // Groups: set urlid based on group name
    execute_sql('UPDATE {group} SET urlid = NULL');
    $table = new XMLDBTable('group');
    $index = new XMLDBIndex('urliduk');
    $index->setAttributes(XMLDB_INDEX_UNIQUE, array('urlid'));
    drop_index($table, $index);
    // Transliteration using iconv is bad if locale is set to C, so set it based on
    // the site language.
    $lang = $sitelang = get_config('lang');
    set_locale_for_language($lang);
    $groupcount = count_records('group', 'deleted', 0);
    $sql = 'SELECT id, name FROM {group} WHERE deleted = 0 AND id > ? ORDER BY id';
    $done = 0;
    $lastid = 0;
    $limit = 1000;
    while ($records = get_records_sql_array($sql, array($lastid), 0, $limit)) {
        $firstid = $lastid;
        $values = array();
        foreach ($records as $r) {
            $r->urlid = generate_urlid($r->name, get_config('cleanurlgroupdefault'), 3, 30);
            array_push($values, $r->id, $r->urlid);
            $lastid = $r->id;
        }
        $updatesql = "UPDATE {group} SET urlid = CASE id\n ";
        $updatesql .= join("\n ", array_fill(0, count($records), 'WHEN ? THEN ?'));
        $updatesql .= "\n ELSE NULL\n END WHERE id > ? AND id <= ? AND deleted = 0";
        array_push($values, $firstid, $lastid);
        execute_sql($updatesql, $values);
        $done += count($records);
        log_debug("Generating group urls: {$done}/{$groupcount}");
    }
    // Fix duplicates...
    $dupurls = get_records_sql_array('
        SELECT id, urlid
        FROM {group}
        WHERE urlid IN (
            SELECT urlid FROM {group} WHERE id > 0 AND deleted = 0 GROUP BY urlid HAVING COUNT(id) > 1
        )
        ORDER BY urlid, id', array());
    $last = null;
    if ($dupurls) {
        log_debug('Fixing ' . count($dupurls) . ' duplicate group urls');
        $ids = array();
        $values = array();
        for ($i = 0; $i < count($dupurls); $i++) {
            if ($dupurls[$i]->urlid != $last) {
                // The first group with this name can keep it, get similar group urls
                $taken = get_column_sql("SELECT urlid FROM {group} WHERE urlid LIKE ?", array(substr($dupurls[$i]->urlid, 0, 24) . '%'));
            } else {
                // Append digits while keeping the max length at 30
                $suffix = 1;
                $try = substr($dupurls[$i]->urlid, 0, 28) . '-1';
                while (in_array($try, $taken)) {
                    $suffix++;
                    $try = substr($dupurls[$i]->urlid, 0, 29 - strlen($suffix)) . '-' . $suffix;
                }
                $taken[] = $try;
                $ids[] = $dupurls[$i]->id;
                array_push($values, $dupurls[$i]->id, $try);
            }
            $last = $dupurls[$i]->urlid;
        }
        $updatesql = "UPDATE {group} SET urlid = CASE id\n ";
        $updatesql .= join("\n ", array_fill(0, count($values) / 2, 'WHEN ? THEN ?'));
        $updatesql .= "\n ELSE urlid\n END\n WHERE id IN (";
        $updatesql .= join(',', array_fill(0, count($ids), '?'));
        $updatesql .= ')';
        $values = array_merge($values, $ids);
        execute_sql($updatesql, $values);
    }
    $table = new XMLDBTable('group');
    $index = new XMLDBIndex('urliduk');
    $index->setAttributes(XMLDB_INDEX_UNIQUE, array('urlid'));
    add_index($table, $index);
    // Views: set urlid based on view title.  Only portfolio views need urlids, and they
    // only need to be unique when they're owned by the same entity.
    // The iconv utf8 conversion gives better results if we set the locale based on the
    // user's language preference, so these are pulled from the db when appropriate.
    execute_sql('UPDATE {view} SET urlid = NULL');
    $table = new XMLDBTable('view');
    $index = new XMLDBIndex('urliduk');
    $index->setAttributes(XMLDB_INDEX_UNIQUE, array('urlid', 'owner', 'group', 'institution'));
    drop_index($table, $index);
    $viewcount = count_records('view', 'type', 'portfolio');
    $sql = "\n        SELECT v.id, v.title, ap.value AS lang\n        FROM {view} v LEFT JOIN {usr_account_preference} ap ON ap.usr = v.owner AND ap.field = 'lang'\n        WHERE v.id > ? AND v.type = 'portfolio'\n        ORDER BY v.id";
    $done = 0;
    $lastid = 0;
    $limit = 1000;
    while ($records = get_records_sql_array($sql, array($lastid), 0, $limit)) {
        $firstid = $lastid;
        $values = array();
        foreach ($records as $r) {
            if (empty($r->lang) || $r->lang == 'default') {
                $r->lang = $sitelang;
            }
            if ($lang != $r->lang) {
                set_locale_for_language($r->lang);
                $lang = $r->lang;
            }
            $r->urlid = generate_urlid($r->title, get_config('cleanurlviewdefault'), 3, 100);
            array_push($values, $r->id, $r->urlid);
            $lastid = $r->id;
        }
        $updatesql = "UPDATE {view} SET urlid = CASE id\n ";
        $updatesql .= join("\n ", array_fill(0, count($records), 'WHEN ? THEN ?'));
        $updatesql .= "\n ELSE NULL\n END WHERE id > ? AND id <= ?";
        array_push($values, $firstid, $lastid);
        execute_sql($updatesql, $values);
        $done += count($records);
        log_debug("Generating page urls: {$done}/{$viewcount}");
    }
    // Reset locale
    set_locale_for_language($sitelang);
    // Fix duplicates with the same owner, group, or institution
    $dupurls = get_records_sql_array("\n        SELECT\n            v.id, dv.urlid, dv.owner, dv.group, dv.institution\n        FROM\n            {view} v,\n            (SELECT d.urlid, d.owner, d.group, d.institution\n             FROM {view} d\n             WHERE d.type = 'portfolio'\n             GROUP BY d.urlid, d.owner, d.group, d.institution\n             HAVING COUNT(d.id) > 1) dv\n        WHERE\n            v.type = 'portfolio'\n            AND v.urlid = dv.urlid\n            AND (v.owner = dv.owner OR (v.owner IS NULL AND dv.owner IS NULL))\n            AND (v.group = dv.group OR (v.group IS NULL AND dv.group IS NULL))\n            AND (v.institution = dv.institution OR (v.institution IS NULL AND dv.institution IS NULL))\n        ORDER BY\n            dv.urlid, dv.owner, dv.group, dv.institution, v.id", array());
    $last = array('urlid' => null, 'owner' => null, 'group' => null, 'institution' => null);
    if ($dupurls) {
        log_debug('Fixing ' . count($dupurls) . ' duplicate page urls');
        $ids = array();
        $values = array();
        for ($i = 0; $i < count($dupurls); $i++) {
            $hasdupes = clone $dupurls[$i];
            unset($hasdupes->id);
            if ($hasdupes != $last) {
                // The first view with this name can keep it
                // Get similar view names to check uniqueness when appending digits
                if (!is_null($hasdupes->owner)) {
                    $ownersql = 'owner = ?';
                    $ownervalue = $hasdupes->owner;
                } else {
                    if (!is_null($hasdupes->group)) {
                        $ownersql = 'group = ?';
                        $ownervalue = $hasdupes->group;
                    } else {
                        if (!is_null($hasdupes->institution)) {
                            $ownersql = 'institution = ?';
                            $ownervalue = $hasdupes->institution;
                        }
                    }
                }
                $taken = get_column_sql('SELECT urlid FROM {view} v WHERE urlid LIKE ? AND v.' . $ownersql, array(substr($dupurls[$i]->urlid, 0, 94), $ownervalue));
            } else {
                // Subsequent views with this name need digits appended, keeping max length at 100
                $suffix = 1;
                $try = substr($dupurls[$i]->urlid, 0, 98) . '-1';
                while (in_array($try, $taken)) {
                    $suffix++;
                    $try = substr($dupurls[$i]->urlid, 0, 99 - strlen($suffix)) . '-' . $suffix;
                }
                $taken[] = $try;
                $ids[] = $dupurls[$i]->id;
                array_push($values, $dupurls[$i]->id, $try);
            }
            $last = $hasdupes;
        }
        $updatesql = "UPDATE {view} SET urlid = CASE id\n ";
        $updatesql .= join("\n ", array_fill(0, count($values) / 2, 'WHEN ? THEN ?'));
        $updatesql .= "\n ELSE urlid\n END\n WHERE id IN (";
        $updatesql .= join(',', array_fill(0, count($ids), '?'));
        $updatesql .= ')';
        $values = array_merge($values, $ids);
        execute_sql($updatesql, $values);
    }
    $table = new XMLDBTable('view');
    $index = new XMLDBIndex('urliduk');
    $index->setAttributes(XMLDB_INDEX_UNIQUE, array('urlid', 'owner', 'group', 'institution'));
    add_index($table, $index);
    // Reset in the session for this user - currently logged-in users may end up wiping theirs
    $USER->urlid = get_field('usr', 'urlid', 'id', $USER->get('id'));
    $USER->commit();
    db_commit();
    $SESSION->add_ok_msg(get_string('generateduserurls', 'admin', $usrcount));
    $SESSION->add_ok_msg(get_string('generatedgroupurls', 'admin', $groupcount));
    $SESSION->add_ok_msg(get_string('generatedviewurls', 'admin', $viewcount));
    redirect('/admin/extensions/cleanurls.php');
}
Esempio n. 22
0
/**
 * Drop keys & indexes for groups upgrade from 1.8.*
 */
function upgrade_18_groups_drop_keys_indexes()
{
    $result = true;
    /// Define index groupid-courseid (unique) to be added to groups_members
    $table = new XMLDBTable('groups_members');
    $index = new XMLDBIndex('groupid-courseid');
    $index->setAttributes(XMLDB_INDEX_UNIQUE, array('groupid', 'userid'));
    $result = $result && drop_index($table, $index);
    /// Define key courseid (foreign) to be added to groups_courses_groups
    $table = new XMLDBTable('groups_courses_groups');
    $key = new XMLDBKey('courseid');
    $key->setAttributes(XMLDB_KEY_FOREIGN, array('courseid'), 'course', array('id'));
    $result = $result && drop_key($table, $key);
    /// Define key groupid (foreign) to be added to groups_courses_groups
    $table = new XMLDBTable('groups_courses_groups');
    $key = new XMLDBKey('groupid');
    $key->setAttributes(XMLDB_KEY_FOREIGN, array('groupid'), 'groups', array('id'));
    $result = $result && drop_key($table, $key);
    /// Define index courseid-groupid (unique) to be added to groups_courses_groups
    $table = new XMLDBTable('groups_courses_groups');
    $index = new XMLDBIndex('courseid-groupid');
    $index->setAttributes(XMLDB_INDEX_UNIQUE, array('courseid', 'groupid'));
    $result = $result && drop_index($table, $index);
    /// Define key courseid (foreign) to be added to groups_courses_groupings
    $table = new XMLDBTable('groups_courses_groupings');
    $key = new XMLDBKey('courseid');
    $key->setAttributes(XMLDB_KEY_FOREIGN, array('courseid'), 'course', array('id'));
    $result = $result && drop_key($table, $key);
    /// Define key groupingid (foreign) to be added to groups_courses_groupings
    $table = new XMLDBTable('groups_courses_groupings');
    $key = new XMLDBKey('groupingid');
    $key->setAttributes(XMLDB_KEY_FOREIGN, array('groupingid'), 'groups_groupings', array('id'));
    $result = $result && drop_key($table, $key);
    /// Define index courseid-groupingid (unique) to be added to groups_courses_groupings
    $table = new XMLDBTable('groups_courses_groupings');
    $index = new XMLDBIndex('courseid-groupingid');
    $index->setAttributes(XMLDB_INDEX_UNIQUE, array('courseid', 'groupingid'));
    $result = $result && drop_index($table, $index);
    /// Define key groupingid (foreign) to be added to groups_groupings_groups
    $table = new XMLDBTable('groups_groupings_groups');
    $key = new XMLDBKey('groupingid');
    $key->setAttributes(XMLDB_KEY_FOREIGN, array('groupingid'), 'groups_groupings', array('id'));
    $result = $result && drop_key($table, $key);
    /// Define key groupid (foreign) to be added to groups_groupings_groups
    $table = new XMLDBTable('groups_groupings_groups');
    $key = new XMLDBKey('groupid');
    $key->setAttributes(XMLDB_KEY_FOREIGN, array('groupid'), 'groups', array('id'));
    $result = $result && drop_key($table, $key);
    /// Define index groupingid-groupid (unique) to be added to groups_groupings_groups
    $table = new XMLDBTable('groups_groupings_groups');
    $index = new XMLDBIndex('groupingid-groupid');
    $index->setAttributes(XMLDB_INDEX_UNIQUE, array('groupingid', 'groupid'));
    $result = $result && drop_index($table, $index);
    return $result;
}
Esempio n. 23
0
function xmldb_block_courseprefs_upgrade($oldversion = 0)
{
    global $CFG, $THEME, $db;
    $result = true;
    /*
     * And upgrade begins here. For each one, you'll need one block of code similar to the next one.
     * Please, delete this comment lines once this file start handling proper upgrade code.
     *
     * if ($result && $oldversion < YYYYMMDD00) { //New version in version.php
     *     $result = result of "/lib/ddllib.php" function calls
     * }
     *
     */
    if ($result && $oldversion < 2008011700) {
        // Adding block_courseprefs_students.status field to table
        $table = new XMLDBTable('block_courseprefs_students');
        $field = new XMLDBField('status');
        $field->setAttributes(XMLDB_TYPE_CHAR, '10', null, XMLDB_NOTNULL, null, XMLDB_ENUM, array('pending', 'enrolled'), 'pending', 'sectionsid');
        $result = $result && add_field($table, $field);
        // Adding block_courseprefs_teachers.status field to table
        $table = new XMLDBTable('block_courseprefs_teachers');
        $field = new XMLDBField('status');
        $field->setAttributes(XMLDB_TYPE_CHAR, '10', null, XMLDB_NOTNULL, null, XMLDB_ENUM, array('enrolled', 'pending'), 'pending', 'primary_flag');
        $result = $result && add_field($table, $field);
    }
    if ($result && $oldversion < 2008021400) {
        $table = new XMLDBTable('block_courseprefs_enroll');
        // Adding block_courseprefs_enroll.sectionsid field to table
        $field = new XMLDBField('semestersid');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null, 'usersid');
        $result = $result && add_field($table, $field);
        // Dropping unique index on usersid and coursesid
        $index = new XMLDBIndex('blocouenr-usecou-uk');
        $index->setAttributes(XMLDB_INDEX_UNIQUE, array('usersid', 'coursesid'));
        $result = $result && drop_index($table, $index);
        // Delete table entries as users will fall back on users' defaults
        delete_records('block_courseprefs_enroll');
        // Adding unique index on usersid, semestersid, and coursesid
        $index = new XMLDBIndex('blocouenr-usesemcou-uix');
        $index->setAttributes(XMLDB_INDEX_UNIQUE, array('usersid', 'semestersid', 'coursesid'));
        $result = $result && add_index($table, $index);
    }
    if ($result && $oldversion < 2008032400) {
        //Upgrade existing users table
        $user_table = new XMLDBTable('block_courseprefs_users');
        $field = new XMLDBField('idnumber');
        $field->setAttributes(XMLDB_TYPE_CHAR, '11', null, XMLDB_NOTNULL, null, null, null, null, 'split_courses');
        /// Define table block_courseprefs_config to be created
        $table = new XMLDBTable('block_courseprefs_config');
        /// Adding fields to table block_courseprefs_config
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('name', XMLDB_TYPE_CHAR, '128', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('value', XMLDB_TYPE_TEXT, 'small', null, XMLDB_NOTNULL, null, null, null, null);
        /// Adding keys to table block_courseprefs_config
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        /// Adding indexes to table block_courseprefs_config
        $table->addIndexInfo('blocoucon-nam-uix', XMLDB_INDEX_UNIQUE, array('name'));
        /// Launch create table for block_courseprefs_config
        $result = $result && create_table($table) && add_field($user_table, $field);
    }
    if ($result && $oldversion < 2008061102) {
        // Upgrade existing updates table
        $updates_table = new XMLDBTable('block_courseprefs_updates');
        $field = new XMLDBField('action');
        $result = $result && drop_field($updates_table, $field);
        $field->setAttributes(XMLDB_TYPE_CHAR, '30', null, null, null, XMLDB_ENUM, array('drop_instructor', 'drop_student', 'enroll_student', 'enroll_instructor', 'enroll_primary_instructor'), null, 'usersid');
        /// Launch change of list of values for field action
        $result = $result && add_field($updates_table, $field);
        /// Define index blocouupd-secuseact-uix (unique) to be dropped form block_courseprefs_updates
        $table = new XMLDBTable('block_courseprefs_updates');
        $index = new XMLDBIndex('blocouupd-secuseact-uix');
        $index->setAttributes(XMLDB_INDEX_UNIQUE, array('sectionsid', 'usersid'));
        /// Launch drop index blocouupd-secuseact-uix
        $result = $result && drop_index($table, $index);
    }
    if ($result && $oldversion < 2008111200) {
        $enrollments = array('students', 'teachers');
        //-------Changing of the users table ------------//
        /// Define field college to be dropped from block_courseprefs_users
        $table = new XMLDBTable('block_courseprefs_users');
        $field = new XMLDBField('course_create_days');
        /// Launch drop field college
        $result = $result && drop_field($table, $field);
        /// Define field college to be dropped from block_courseprefs_users
        $field = new XMLDBField('split_courses');
        /// Launch drop field college
        $result = $result && drop_field($table, $field);
        /// Define field college to be dropped from block_courseprefs_users
        $field = new XMLDBField('course_enroll_days');
        /// Launch drop field college
        $result = $result && drop_field($table, $field);
        $field = new XMLDBField('year');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, null, null, null, null, null, 'idnumber');
        /// Launch add field year
        $result = $result && add_field($table, $field);
        /// Define field college to be added to block_courseprefs_users
        $field = new XMLDBField('college');
        $field->setAttributes(XMLDB_TYPE_CHAR, '10', null, null, null, null, null, null, 'year');
        /// Launch add field college
        $result = $result && add_field($table, $field);
        /// Define field reg_status to be added to block_courseprefs_users
        $field = new XMLDBField('reg_status');
        $field->setAttributes(XMLDB_TYPE_CHAR, '20', null, null, null, null, null, null, 'college');
        /// Launch add field reg_status
        $result = $result && add_field($table, $field);
        /// Define field classification to be added to block_courseprefs_users
        $field = new XMLDBField('classification');
        $field->setAttributes(XMLDB_TYPE_CHAR, '15', null, null, null, null, null, null, 'reg_status');
        /// Launch add field classification
        $result = $result && add_field($table, $field);
        /// Define field keypadid to be added to block_courseprefs_users
        $field = new XMLDBField('keypadid');
        $field->setAttributes(XMLDB_TYPE_CHAR, '20', null, null, null, null, null, null, 'classification');
        /// Launch add field keypadid
        $result = $result && add_field($table, $field);
        /// Define field moodleid to be added to block_courseprefs_users
        $field = new XMLDBField('moodleid');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null, 'keypadid');
        /// Launch add field moodleid
        $result = $result && add_field($table, $field);
        /// Define field degree_candidacy to be added to block_courseprefs_users
        $field = new XMLDBField('degree_candidacy');
        $field->setAttributes(XMLDB_TYPE_CHAR, '1', null, XMLDB_NOTNULL, null, null, null, 'N', 'moodleid');
        /// Launch add field degree_candidacy
        $result = $result && add_field($table, $field);
        /// Define field anonymous to be added to block_courseprefs_users
        $field = new XMLDBField('anonymous');
        $field->setAttributes(XMLDB_TYPE_CHAR, '20', null, null, null, null, null, null, 'degree_candidacy');
        /// Launch add field anonymous
        $result = $result && add_field($table, $field);
        /// Define field anonymous to be added to block_courseprefs_users
        $field = new XMLDBField('ferpa');
        $field->setAttributes(XMLDB_TYPE_CHAR, '1', null, null, null, null, null, null, 'anonymous');
        /// Launch add field anonymous
        $result = $result && add_field($table, $field);
        /// Define field format to be added to block_courseprefs_users
        $field = new XMLDBField('format');
        $field->setAttributes(XMLDB_TYPE_CHAR, '50', null, XMLDB_NOTNULL, null, null, null, 'topics', 'ferpa');
        /// Launch add field format
        $result = $result && add_field($table, $field);
        /// Define field numsections to be added to block_courseprefs_users
        $field = new XMLDBField('numsections');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '3', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '17', 'format');
        /// Launch add field numsections
        $result = $result && add_field($table, $field);
        /// Define field hidden to be added to block_courseprefs_users
        $field = new XMLDBField('hidden');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '1', null, XMLDB_NOTNULL, null, null, null, '1', 'numsections');
        /// Launch add field hidden
        $result = $result && add_field($table, $field);
        $field = new XMLDBField('cr_delete');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '1', 'hidden');
        /// Launch add field cr_delete
        $result = $result && add_field($table, $field);
        // Make moodleid valid
        $sql = "UPDATE {$CFG->prefix}user mu, \n                       {$CFG->prefix}block_courseprefs_users u \n                    SET u.moodleid = mu.id \n                    WHERE u.username=mu.username";
        execute_sql($sql);
        //-------Changing of the sections table ---------//
        /// Define field status to be added to block_courseprefs_sections
        $table = new XMLDBTable('block_courseprefs_sections');
        $field = new XMLDBField('status');
        $field->setAttributes(XMLDB_TYPE_CHAR, '10', null, XMLDB_NOTNULL, null, XMLDB_ENUM, array('pending', 'completed', 'unwant', 'unwanted'), 'pending', 'idnumber');
        /// Launch add field status
        $result = $result && add_field($table, $field);
        // Now we update the db to reflect the new schema
        $sql = "UPDATE {$CFG->prefix}block_courseprefs_sections \n                SET status='completed'\n                WHERE idnumber IS NOT NULL";
        execute_sql($sql);
        /// Define field timestamp to be added to block_courseprefs_sections
        $table = new XMLDBTable('block_courseprefs_sections');
        $field = new XMLDBField('timestamp');
        $field->setAttributes(XMLDB_TYPE_CHAR, '20', null, null, null, null, null, null, 'status');
        /// Launch add field timestamp
        $result = $result && add_field($table, $field);
        /// Define field credit_hours to be added to block_courseprefs_students
        $table = new XMLDBTable('block_courseprefs_students');
        $field = new XMLDBField('credit_hours');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '2', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '3', 'status');
        /// Launch add field credit_hours
        $result = $result && add_field($table, $field);
        /// Define field timestamp to be added to block_courseprefs_teachers
        $table = new XMLDBTable('block_courseprefs_teachers');
        $field = new XMLDBField('timestamp');
        $field->setAttributes(XMLDB_TYPE_CHAR, '20', null, null, null, null, null, null, 'status');
        $index = new XMLDBIndex('blocoutea-usesec-uix');
        $index->setAttributes(XMLDB_INDEX_UNIQUE, array('usersid', 'sectionsid'));
        /// Launch add field timestamp
        $result = $result && add_field($table, $field) && drop_index($table, $index);
        // Add unique index
        $index = new XMLDBIndex('blocoutea_usesec_ix');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('usersid', 'sectionsid'));
        $uindex = new XMLDBIndex('blocoutea_usesecpri_uix');
        $uindex->setAttributes(XMLDB_INDEX_UNIQUE, array('usersid', 'sectionsid', 'primary_flag'));
        $result = $result && add_index($table, $index) && add_index($table, $uindex);
        //-------Changing of the enrollments ---------//
        foreach ($enrollments as $enrollment) {
            /// Changing list of values (enum) of field status on table block_courseprefs_students to 'enrolled', 'enroll', 'unenrolled', 'unenroll'
            $table = new XMLDBTable('block_courseprefs_' . $enrollment);
            $field = new XMLDBField('status');
            $field->setAttributes(XMLDB_TYPE_CHAR, '10', null, XMLDB_NOTNULL, null, XMLDB_ENUM, array('enrolled', 'enroll', 'unenrolled', 'unenroll'), 'enroll');
            /// Launch change of list of values for field status
            $result = $result && change_field_type($table, $field);
            //Change 'pending' values
            $sql = "UPDATE {$CFG->prefix}block_courseprefs_{$enrollment} \n                        SET status='enroll' \n                        WHERE status!='enrolled'";
            $result = $result && execute_sql($sql);
        }
        //--------Changing of the split table ----------//
        //Caching off the splits in record now
        $splits = get_records('block_courseprefs_split');
        $table = new XMLDBTable('block_courseprefs_split');
        $index = new XMLDBIndex('blocouspl-usecou-uk');
        $index->setAttributes(XMLDB_INDEX_UNIQUE, array('usersid', 'coursesid'));
        $result = $result && drop_index($table, $index);
        /// Define field coursesid to be dropped from block_courseprefs_split
        $table = new XMLDBTable('block_courseprefs_split');
        $field = new XMLDBField('coursesid');
        /// Launch drop field coursesid
        $result = $result && drop_field($table, $field);
        /// Define field sectionsid to be added to block_courseprefs_split
        $table = new XMLDBTable('block_courseprefs_split');
        $field = new XMLDBField('sectionsid');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null, 'usersid');
        /// Launch add field sectionsid
        $result = $result && add_field($table, $field);
        /// Define field groupingsid to be added to block_courseprefs_split
        $table = new XMLDBTable('block_courseprefs_split');
        $field = new XMLDBField('groupingsid');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null, 'sectionsid');
        /// Launch add field groupingsid
        $result = $result && add_field($table, $field);
        /// Define field status to be added to block_courseprefs_split
        $table = new XMLDBTable('block_courseprefs_split');
        $field = new XMLDBField('status');
        $field->setAttributes(XMLDB_TYPE_CHAR, '10', null, XMLDB_NOTNULL, null, XMLDB_ENUM, array('todo', 'resolved', 'undo'), 'resolved', 'groupingsid');
        /// Launch add field status
        $result = $result && add_field($table, $field);
        /// Define field shell_name to be added to block_courseprefs_split
        $table = new XMLDBTable('block_courseprefs_split');
        $field = new XMLDBField('shell_name');
        $field->setAttributes(XMLDB_TYPE_CHAR, '255', null, null, null, null, null, null, 'status');
        /// Launch add field shell_name
        $result = $result && add_field($table, $field);
        /// Define index blocouspl-usecousec-uk (unique) to be dropped form block_courseprefs_split
        $new_index = new XMLDBIndex('blocouspl-usesecgrosta-uk');
        $new_index->setAttributes(XMLDB_INDEX_UNIQUE, array('usersid', 'sectionsid', 'groupingsid', 'status'));
        /// Launch drop previous index and add blocouspl-usecousecgrosta-uk
        $result = $result && add_index($table, $new_index);
        // Now convert old split data to match the new one
        foreach ($splits as $split) {
            $sql = "SELECT sec.* FROM {$CFG->prefix}block_courseprefs_sections sec,\n                    {$CFG->prefix}block_courseprefs_teachers t\n                    WHERE t.usersid   = {$split->usersid}\n                    AND t.sectionsid  = sec.id\n                    AND sec.coursesid = {$split->coursesid}";
            $sections = get_records_sql($sql);
            $count = 0;
            foreach ($sections as $section) {
                $new_split = new stdClass();
                $new_split->usersid = $split->usersid;
                $new_split->sectionsid = $section->id;
                $new_split->status = 'resolved';
                $new_split->groupingsid = ++$count;
                $new_split->shell_name = 'Section ' . $section->section_number;
                $result = insert_record('block_courseprefs_split', $new_split);
            }
            $result = delete_records('block_courseprefs_split', 'id', $split->id);
        }
        //---------Changing of the crosslist table --------//
        $crosslists = get_records('block_courseprefs_crosslist');
        /// Define field status to be added to block_courseprefs_crosslist
        $table = new XMLDBTable('block_courseprefs_crosslist');
        $field = new XMLDBField('status');
        $field->setAttributes(XMLDB_TYPE_CHAR, '10', null, XMLDB_NOTNULL, null, XMLDB_ENUM, array('todo', 'resolved', 'undo'), 'resolved', 'cr_sectionsid');
        /// Launch add field status
        $result = $result && add_field($table, $field);
        /// Define field shell_name to be added to block_courseprefs_crosslist
        $table = new XMLDBTable('block_courseprefs_crosslist');
        $field = new XMLDBField('shell_name');
        $field->setAttributes(XMLDB_TYPE_CHAR, '100', null, null, null, null, null, null, 'status');
        /// Launch add field shell_name
        $result = $result && add_field($table, $field);
        /// Define field idnumber to be added to block_courseprefs_crosslist
        $table = new XMLDBTable('block_courseprefs_crosslist');
        $field = new XMLDBField('idnumber');
        $field->setAttributes(XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, null, null, 'shell_name');
        /// Launch add field idnumber
        $result = $result && add_field($table, $field);
        /// Define field cr_sectionsid to be dropped from block_courseprefs_crosslist
        $table = new XMLDBTable('block_courseprefs_crosslist');
        $field = new XMLDBField('cr_sectionsid');
        /// Launch drop field cr_sectionsid
        $result = $result && drop_field($table, $field);
        // Time to change the existing records
        foreach ($crosslists as $crosslist) {
            $sections = array_map('find_section', array($crosslist->sectionsid, $crosslist->cr_sectionsid));
            $shell_name = "{$sections[0]->department} {$sections[0]->course_number} / {$sections[1]->department} {$sections[1]->course_number}";
            $idnumber = $sections[0]->idnumber;
            foreach ($sections as $section) {
                $new_crosslist = new stdClass();
                $new_crosslist->usersid = $crosslist->usersid;
                $new_crosslist->sectionsid = $section->id;
                $new_crosslist->shell_name = $shell_name;
                $new_crosslist->idnumber = $idnumber;
                $new_crosslist->status = 'resolved';
                insert_record('block_courseprefs_crosslist', $new_crosslist);
            }
            delete_records('block_courseprefs_crosslist', 'id', $crosslist->id);
        }
        //----------Changing of the teamteach table --------//
        /// Define field status to be added to block_courseprefs_teamteach
        $table = new XMLDBTable('block_courseprefs_teamteach');
        $field = new XMLDBField('status');
        $field->setAttributes(XMLDB_TYPE_CHAR, '10', null, XMLDB_NOTNULL, null, XMLDB_ENUM, array('todo', 'resolved', 'undo'), 'resolved', 'approval_flag');
        /// Launch add field status
        $result = $result && add_field($table, $field);
        //-----------Dropping the updates table -----------//
        /// Define table block_courseprefs_updates to be dropped
        $table = new XMLDBTable('block_courseprefs_updates');
        /// Launch drop table for block_courseprefs_updates
        $result = $result && drop_table($table);
        //-----------Dropping the unwanted table ----------//
        $unwanteds = get_records('block_courseprefs_unwanted');
        foreach ($unwanteds as $unwanted) {
            if ($unwanted->sectionsid) {
                // There should only be one
                $sections = get_records('block_courseprefs_sections', 'id', $unwanted->sectionsid);
            } else {
                $sql = "SELECT * FROM {$CFG->prefix}block_courseprefs_sections\n                            WHERE coursesid={$unwanted->coursesid}";
                $sections = get_records_sql($sql);
            }
            foreach ($sections as $section) {
                $section->status = 'unwanted';
                $result = update_record('block_courseprefs_sections', $section);
            }
        }
        /// Define table block_courseprefs_unwanted to be dropped
        $table = new XMLDBTable('block_courseprefs_unwanted');
        /// Launch drop table for block_courseprefs_unwanted
        $result = $result && drop_table($table);
        /// Define table block_courseprefs_logs to be created
        $table = new XMLDBTable('block_courseprefs_logs');
        /// Adding fields to table block_courseprefs_logs
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('timestamp', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('usersid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('sectionsid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('action', XMLDB_TYPE_CHAR, '40', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('info', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, null, null);
        /// Adding keys to table block_courseprefs_logs
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        /// Adding indexes to table block_courseprefs_logs
        $table->addIndexInfo('bloclogs_tim_ix', XMLDB_INDEX_NOTUNIQUE, array('timestamp'));
        $table->addIndexInfo('bloclogs_act_ix', XMLDB_INDEX_NOTUNIQUE, array('action'));
        $table->addIndexInfo('bloclogs_usesec_ix', XMLDB_INDEX_NOTUNIQUE, array('usersid', 'sectionsid'));
        $table->addIndexInfo('bloclogs_usesecact_ix', XMLDB_INDEX_NOTUNIQUE, array('usersid', 'sectionsid', 'action'));
        /// Launch create table for block_courseprefs_logs
        $result = $result && create_table($table);
    }
    if ($result && $oldversion < 2010010500) {
        //TODO: make this not tied to mysql
        /// Changing list of values (enum) of field status on table block_courseprefs_sections to
        /// 'pending', 'completed', 'unwant', 'unwanted', and requested
        $sql = "ALTER TABLE {$CFG->prefix}block_courseprefs_sections \n                CHANGE `status` `status` \n                ENUM( 'pending', 'completed', 'unwant', 'unwanted', 'requested' ) \n                CHARACTER SET utf8 \n                COLLATE utf8_general_ci NOT NULL DEFAULT 'pending'";
        execute_sql($sql);
    }
    // Adding the sport code, and user relationship tables
    if ($result && $oldversion < 2010030500) {
        /// Define table blocks_courseprefs_sports to be created
        $table = new XMLDBTable('block_courseprefs_sports');
        /// Adding fields to table blocks_courseprefs_sports
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('code', XMLDB_TYPE_CHAR, '10', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('name', XMLDB_TYPE_CHAR, '100', null, XMLDB_NOTNULL, null, null, null, null);
        /// Adding keys to table blocks_courseprefs_sports
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        /// Adding indexes to table blocks_courseprefs_sports
        $table->addIndexInfo('blocouspo-nam-uix', XMLDB_INDEX_UNIQUE, array('name'));
        /// Launch create table for blocks_courseprefs_sports
        $result = $result && create_table($table);
        /// Define table blocks_courseprefs_sportuser to be created
        $table = new XMLDBTable('block_courseprefs_sportusers');
        /// Adding fields to table blocks_courseprefs_sportuser
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('sportsid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('usersid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        /// Adding keys to table blocks_courseprefs_sportuser
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        /// Adding indexes to table blocks_courseprefs_sportuser
        $table->addIndexInfo('blocouspouse-spouse-ix', XMLDB_INDEX_NOTUNIQUE, array('sportsid', 'usersid'));
        /// Launch create table for blocks_courseprefs_sportuser
        $result = $result && create_table($table);
    }
    if ($result && $oldversion < 2010050513) {
        $table = new XMLDBTable('block_courseprefs_hooks');
        /// Adding fields to table block_courseprefs_hooks
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('name', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('type', XMLDB_TYPE_CHAR, '100', null, XMLDB_NOTNULL, null, XMLDB_ENUM, array('block', 'mod', 'enrol', 'auth', 'report', 'import', 'export', 'user'), 'block');
        /// Adding keys to table block_courseprefs_hooks
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addIndexInfo('bloc_couhoonam', XMLDB_INDEX_UNIQUE, array('name'));
        $result = $result && create_table($table);
    }
    if ($result && $oldversion < 2011030912) {
        $table = new XMLDBTable('block_courseprefs_courses');
        $course_type_field = new XMLDBField('course_type');
        $course_type_field->setAttributes(XMLDB_TYPE_CHAR, '3', null, null, null, XMLDB_ENUM, array('CLI', 'IND', 'LEC', 'RES', 'SEM'), null, 'fullname');
        $grade_type_field = new XMLDBField('grade_type');
        $grade_type_field->setAttributes(XMLDB_TYPE_CHAR, '2', null, XMLDB_NOTNULL, null, XMLDB_ENUM, array('LP', 'N', 'L'), 'L', 'course_type');
        $first_year_field = new XMLDBField('first_year');
        $first_year_field->setAttributes(XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'grade_type');
        $exception_field = new XMLDBField('exception');
        $exception_field->setAttributes(XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'first_year');
        /// Launch add field course_type
        $result = $result && add_field($table, $course_type_field) && add_field($table, $grade_type_field) && add_field($table, $first_year_field) && add_field($table, $exception_field);
    }
    if ($result && $oldversion < 2011062600) {
        /// Define field legal_writing to be added to block_courseprefs_courses
        $table = new XMLDBTable('block_courseprefs_courses');
        $field = new XMLDBField('legal_writing');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'exception');
        /// Launch add field legal_writing
        $result = $result && add_field($table, $field);
    }
    return $result;
}
Esempio n. 24
0
function xmldb_enrol_authorize_upgrade($oldversion = 0)
{
    global $CFG, $THEME, $db;
    $result = true;
    if ($result && $oldversion < 2006111700) {
        $table = new XMLDBTable('enrol_authorize');
        if (!field_exists($table, new XMLDBField('refundinfo'))) {
            $field = new XMLDBField('cclastfour');
            $field->setAttributes(XMLDB_TYPE_INTEGER, '4', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'paymentmethod');
            $result = $result && rename_field($table, $field, 'refundinfo');
        }
    }
    if ($result && $oldversion < 2006112900) {
        if (isset($CFG->an_login)) {
            if (empty($CFG->an_login)) {
                unset_config('an_login');
            } else {
                $result = $result && set_config('an_login', rc4encrypt($CFG->an_login), 'enrol/authorize') && unset_config('an_login');
            }
        }
        if (isset($CFG->an_tran_key)) {
            if (empty($CFG->an_tran_key)) {
                unset_config('an_tran_key');
            } else {
                $result = $result && set_config('an_tran_key', rc4encrypt($CFG->an_tran_key), 'enrol/authorize') && unset_config('an_tran_key');
            }
        }
        if (isset($CFG->an_password)) {
            if (empty($CFG->an_password)) {
                unset_config('an_password');
            } else {
                $result = $result && set_config('an_password', rc4encrypt($CFG->an_password), 'enrol/authorize') && unset_config('an_password');
            }
        }
    }
    if ($result && $oldversion < 2006112903) {
        /// enrol_authorize.transid
        /// Define index transid (not unique) to be dropped form enrol_authorize
        $table = new XMLDBTable('enrol_authorize');
        $index = new XMLDBIndex('transid');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('transid'));
        drop_index($table, $index);
        /// Changing precision of field transid on table enrol_authorize to (20)
        $table = new XMLDBTable('enrol_authorize');
        $field = new XMLDBField('transid');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '20', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'userid');
        change_field_precision($table, $field);
        /// Launch add index transid again
        $table = new XMLDBTable('enrol_authorize');
        $index = new XMLDBIndex('transid');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('transid'));
        add_index($table, $index);
        /// enrol_authorize_refunds.transid
        /// Define index transid (not unique) to be dropped form enrol_authorize_refunds
        $table = new XMLDBTable('enrol_authorize_refunds');
        $index = new XMLDBIndex('transid');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('transid'));
        drop_index($table, $index);
        /// Changing precision of field transid on table enrol_authorize_refunds to (20)
        $table = new XMLDBTable('enrol_authorize_refunds');
        $field = new XMLDBField('transid');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '20', XMLDB_UNSIGNED, null, null, null, null, '0', 'amount');
        change_field_precision($table, $field);
        /// Launch add index transid again
        $table = new XMLDBTable('enrol_authorize_refunds');
        $index = new XMLDBIndex('transid');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('transid'));
        add_index($table, $index);
    }
    return $result;
}
Esempio n. 25
0
function xmldb_main_upgrade($oldversion = 0)
{
    global $CFG, $THEME, $USER, $db;
    $result = true;
    if ($oldversion < 2006100401) {
        /// Only for those tracking Moodle 1.7 dev, others will have these dropped in moodle_install_roles()
        if (!empty($CFG->rolesactive)) {
            drop_table(new XMLDBTable('user_students'));
            drop_table(new XMLDBTable('user_teachers'));
            drop_table(new XMLDBTable('user_coursecreators'));
            drop_table(new XMLDBTable('user_admins'));
        }
        upgrade_main_savepoint($result, 2006100401);
    }
    if ($oldversion < 2006100601) {
        /// Disable the exercise module because it's unmaintained
        if ($module = get_record('modules', 'name', 'exercise')) {
            if ($module->visible) {
                // Hide/disable the module entry
                set_field('modules', 'visible', '0', 'id', $module->id);
                // Save existing visible state for all activities
                set_field('course_modules', 'visibleold', '1', 'visible', '1', 'module', $module->id);
                set_field('course_modules', 'visibleold', '0', 'visible', '0', 'module', $module->id);
                // Hide all activities
                set_field('course_modules', 'visible', '0', 'module', $module->id);
                require_once $CFG->dirroot . '/course/lib.php';
                rebuild_course_cache();
                // Rebuld cache for all modules because they might have changed
            }
        }
        upgrade_main_savepoint($result, 2006100601);
    }
    if ($oldversion < 2006101001) {
        /// Disable the LAMS module by default (if it is installed)
        if (count_records('modules', 'name', 'lams') && !count_records('lams')) {
            set_field('modules', 'visible', 0, 'name', 'lams');
            // Disable it by default
        }
        upgrade_main_savepoint($result, 2006101001);
    }
    if ($result && $oldversion < 2006102600) {
        /// Define fields to be added to user_info_field
        $table = new XMLDBTable('user_info_field');
        $field = new XMLDBField('description');
        $field->setAttributes(XMLDB_TYPE_TEXT, 'big', null, null, null, null, null, null, 'categoryid');
        $field1 = new XMLDBField('param1');
        $field1->setAttributes(XMLDB_TYPE_TEXT, 'big', null, null, null, null, null, null, 'defaultdata');
        $field2 = new XMLDBField('param2');
        $field2->setAttributes(XMLDB_TYPE_TEXT, 'big', null, null, null, null, null, null, 'param1');
        $field3 = new XMLDBField('param3');
        $field3->setAttributes(XMLDB_TYPE_TEXT, 'big', null, null, null, null, null, null, 'param2');
        $field4 = new XMLDBField('param4');
        $field4->setAttributes(XMLDB_TYPE_TEXT, 'big', null, null, null, null, null, null, 'param3');
        $field5 = new XMLDBField('param5');
        $field5->setAttributes(XMLDB_TYPE_TEXT, 'big', null, null, null, null, null, null, 'param4');
        /// Launch add fields
        $result = $result && add_field($table, $field);
        $result = $result && add_field($table, $field1);
        $result = $result && add_field($table, $field2);
        $result = $result && add_field($table, $field3);
        $result = $result && add_field($table, $field4);
        $result = $result && add_field($table, $field5);
        upgrade_main_savepoint($result, 2006102600);
    }
    if ($result && $oldversion < 2006112000) {
        /// Define field attachment to be added to post
        $table = new XMLDBTable('post');
        $field = new XMLDBField('attachment');
        $field->setAttributes(XMLDB_TYPE_CHAR, '100', null, null, null, null, null, null, 'format');
        /// Launch add field attachment
        $result = $result && add_field($table, $field);
        upgrade_main_savepoint($result, 2006112000);
    }
    if ($result && $oldversion < 2006112200) {
        /// Define field imagealt to be added to user
        $table = new XMLDBTable('user');
        $field = new XMLDBField('imagealt');
        $field->setAttributes(XMLDB_TYPE_CHAR, '255', null, null, null, null, null, null, 'trustbitmask');
        /// Launch add field imagealt
        $result = $result && add_field($table, $field);
        $table = new XMLDBTable('user');
        $field = new XMLDBField('screenreader');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '1', null, XMLDB_NOTNULL, null, null, null, '0', 'imagealt');
        /// Launch add field screenreader
        $result = $result && add_field($table, $field);
        upgrade_main_savepoint($result, 2006112200);
    }
    if ($oldversion < 2006120300) {
        /// Delete guest course section settings
        // following code can be executed repeatedly, such as when upgrading from 1.7.x - it is ok
        if ($guest = get_record('user', 'username', 'guest')) {
            execute_sql("DELETE FROM {$CFG->prefix}course_display where userid={$guest->id}", true);
        }
        upgrade_main_savepoint($result, 2006120300);
    }
    if ($oldversion < 2006120400) {
        /// Remove secureforms config setting
        execute_sql("DELETE FROM {$CFG->prefix}config where name='secureforms'", true);
        upgrade_main_savepoint($result, 2006120400);
    }
    if (!empty($CFG->rolesactive) && $oldversion < 2006120700) {
        // add moodle/user:viewdetails to all roles!
        // note: use of assign_capability() is discouraged in upgrade script!
        if ($roles = get_records('role')) {
            $context = get_context_instance(CONTEXT_SYSTEM);
            foreach ($roles as $roleid => $role) {
                assign_capability('moodle/user:viewdetails', CAP_ALLOW, $roleid, $context->id);
            }
        }
        upgrade_main_savepoint($result, 2006120700);
    }
    // Move the auth plugin settings into the config_plugin table
    if ($oldversion < 2007010300) {
        if ($CFG->auth == 'email') {
            set_config('registerauth', 'email');
        } else {
            set_config('registerauth', '');
        }
        $authplugins = get_list_of_plugins('auth');
        foreach ($CFG as $k => $v) {
            if (strpos($k, 'ldap_') === 0) {
                //upgrade nonstandard ldap settings
                $setting = substr($k, 5);
                if (set_config($setting, $v, "auth/ldap")) {
                    delete_records('config', 'name', $k);
                    unset($CFG->{$k});
                }
                continue;
            }
            if (strpos($k, 'auth_') !== 0) {
                continue;
            }
            $authsetting = substr($k, 5);
            foreach ($authplugins as $auth) {
                if (strpos($authsetting, $auth) !== 0) {
                    continue;
                }
                $setting = substr($authsetting, strlen($auth));
                if (set_config($setting, $v, "auth/{$auth}")) {
                    delete_records('config', 'name', $k);
                    unset($CFG->{$k});
                }
                break;
                // don't check the rest of the auth plugin names
            }
        }
        upgrade_main_savepoint($result, 2007010300);
    }
    if ($oldversion < 2007010301) {
        //
        // Core MNET tables
        //
        $table = new XMLDBTable('mnet_host');
        $table->comment = 'Information about the local and remote hosts for RPC';
        // fields
        $f = $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', false, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $f->comment = 'Unique Host ID';
        $f = $table->addFieldInfo('deleted', XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, 0);
        $f = $table->addFieldInfo('wwwroot', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, null, null);
        $f = $table->addFieldInfo('ip_address', XMLDB_TYPE_CHAR, '39', null, XMLDB_NOTNULL, null, null, null, null);
        $f = $table->addFieldInfo('name', XMLDB_TYPE_CHAR, '80', null, XMLDB_NOTNULL, null, null, null, null);
        $f = $table->addFieldInfo('public_key', XMLDB_TYPE_TEXT, 'medium', null, XMLDB_NOTNULL, null, null, null, null);
        $f = $table->addFieldInfo('public_key_expires', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, 0);
        $f = $table->addFieldInfo('transport', XMLDB_TYPE_INTEGER, '2', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, 0);
        $f = $table->addFieldInfo('portno', XMLDB_TYPE_INTEGER, '2', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, 0);
        $f = $table->addFieldInfo('last_connect_time', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, 0);
        $f = $table->addFieldInfo('last_log_id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, 0);
        // PK and indexes
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        // Create the table
        $result = $result && create_table($table);
        $table = new XMLDBTable('mnet_host2service');
        $table->comment = 'Information about the services for a given host';
        // fields
        $f = $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', false, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $f = $table->addFieldInfo('hostid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        $f = $table->addFieldInfo('serviceid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        $f = $table->addFieldInfo('publish', XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        $f = $table->addFieldInfo('subscribe', XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        // PK and indexes
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addIndexInfo('hostid_serviceid', XMLDB_INDEX_UNIQUE, array('hostid', 'serviceid'));
        // Create the table
        $result = $result && create_table($table);
        $table = new XMLDBTable('mnet_log');
        $table->comment = 'Store session data from users migrating to other sites';
        // fields
        $f = $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', false, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $f = $table->addFieldInfo('hostid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        $f = $table->addFieldInfo('remoteid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        $f = $table->addFieldInfo('time', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        $f = $table->addFieldInfo('userid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        $f = $table->addFieldInfo('ip', XMLDB_TYPE_CHAR, '15', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('course', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        $f = $table->addFieldInfo('coursename', XMLDB_TYPE_CHAR, '40', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('module', XMLDB_TYPE_CHAR, '20', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('cmid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        $f = $table->addFieldInfo('action', XMLDB_TYPE_CHAR, '40', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('url', XMLDB_TYPE_CHAR, '100', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('info', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, NULL, null, null, null);
        // PK and indexes
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addIndexInfo('host_user_course', XMLDB_INDEX_NOTUNIQUE, array('hostid', 'userid', 'course'));
        // Create the table
        $result = $result && create_table($table);
        $table = new XMLDBTable('mnet_rpc');
        $table->comment = 'Functions or methods that we may publish or subscribe to';
        // fields
        $f = $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', false, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $f = $table->addFieldInfo('function_name', XMLDB_TYPE_CHAR, '40', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('xmlrpc_path', XMLDB_TYPE_CHAR, '80', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('parent_type', XMLDB_TYPE_CHAR, '6', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('parent', XMLDB_TYPE_CHAR, '20', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('enabled', XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        $f = $table->addFieldInfo('help', XMLDB_TYPE_TEXT, 'medium', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('profile', XMLDB_TYPE_TEXT, 'medium', null, XMLDB_NOTNULL, NULL, null, null, null);
        // PK and indexes
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addIndexInfo('enabled_xpath', XMLDB_INDEX_NOTUNIQUE, array('enabled', 'xmlrpc_path'));
        // Create the table
        $result = $result && create_table($table);
        $table = new XMLDBTable('mnet_service');
        $table->comment = 'A service is a group of functions';
        // fields
        $f = $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', false, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $f = $table->addFieldInfo('name', XMLDB_TYPE_CHAR, '40', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('description', XMLDB_TYPE_CHAR, '40', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('apiversion', XMLDB_TYPE_CHAR, '10', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('offer', XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        // PK and indexes
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        // Create the table
        $result = $result && create_table($table);
        $table = new XMLDBTable('mnet_service2rpc');
        $table->comment = 'Group functions or methods under a service';
        // fields
        $f = $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', false, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $f = $table->addFieldInfo('serviceid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        $f = $table->addFieldInfo('rpcid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        // PK and indexes
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addIndexInfo('unique', XMLDB_INDEX_UNIQUE, array('rpcid', 'serviceid'));
        // Create the table
        $result = $result && create_table($table);
        //
        // Prime MNET configuration entries -- will be needed later by auth/mnet
        //
        include_once $CFG->dirroot . '/mnet/lib.php';
        $env = new mnet_environment();
        $env->init();
        unset($env);
        // add mnethostid to user-
        $table = new XMLDBTable('user');
        $field = new XMLDBField('mnethostid');
        $field->setType(XMLDB_TYPE_INTEGER);
        $field->setLength(10);
        $field->setNotNull(true);
        $field->setSequence(null);
        $field->setEnum(null);
        $field->setDefault('0');
        $field->setPrevious("deleted");
        $field->setNext("username");
        $result = $result && add_field($table, $field);
        // The default mnethostid is zero... we need to update this for all
        // users of the local IdP service.
        set_field('user', 'mnethostid', $CFG->mnet_localhost_id, 'mnethostid', '0');
        $index = new XMLDBIndex('username');
        $index->setUnique(true);
        $index->setFields(array('username'));
        drop_index($table, $index);
        $index->setFields(array('mnethostid', 'username'));
        if (!add_index($table, $index)) {
            notify(get_string('duplicate_usernames', 'mnet', 'http://docs.moodle.org/en/DuplicateUsernames'));
        }
        unset($table, $field, $index);
        /**
         ** auth/mnet tables
         **/
        $table = new XMLDBTable('mnet_session');
        $table->comment = 'Store session data from users migrating to other sites';
        // fields
        $f = $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', false, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $f = $table->addFieldInfo('userid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        $f = $table->addFieldInfo('username', XMLDB_TYPE_CHAR, '100', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('token', XMLDB_TYPE_CHAR, '40', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('mnethostid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        $f = $table->addFieldInfo('useragent', XMLDB_TYPE_CHAR, '40', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('confirm_timeout', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        $f = $table->addFieldInfo('session_id', XMLDB_TYPE_CHAR, '40', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('expires', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        // PK and indexes
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addIndexInfo('token', XMLDB_INDEX_UNIQUE, array('token'));
        // Create the table
        $result = $result && create_table($table);
        $table = new XMLDBTable('mnet_sso_access_control');
        $table->comment = 'Users by host permitted (or not) to login from a remote provider';
        $f = $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', false, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $f = $table->addFieldInfo('username', XMLDB_TYPE_CHAR, '100', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('mnet_host_id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        $f = $table->addFieldInfo('access', XMLDB_TYPE_CHAR, '20', null, XMLDB_NOTNULL, NULL, null, null, 'allow');
        // PK and indexes
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addIndexInfo('mnethostid_username', XMLDB_INDEX_UNIQUE, array('mnet_host_id', 'username'));
        // Create the table
        $result = $result && create_table($table);
        if (empty($USER->mnet_host_id)) {
            $USER->mnet_host_id = $CFG->mnet_localhost_id;
            // Something for the current user to prevent warnings
        }
        /**
         ** enrol/mnet tables
         **/
        $table = new XMLDBTable('mnet_enrol_course');
        $table->comment = 'Information about courses on remote hosts';
        $f = $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', false, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $f = $table->addFieldInfo('hostid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        $f = $table->addFieldInfo('remoteid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        $f = $table->addFieldInfo('cat_id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        $f = $table->addFieldInfo('cat_name', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('cat_description', XMLDB_TYPE_TEXT, 'medium', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('sortorder', XMLDB_TYPE_INTEGER, '4', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        $f = $table->addFieldInfo('fullname', XMLDB_TYPE_CHAR, '254', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('shortname', XMLDB_TYPE_CHAR, '15', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('idnumber', XMLDB_TYPE_CHAR, '100', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('summary', XMLDB_TYPE_TEXT, 'medium', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('startdate', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        $f = $table->addFieldInfo('cost', XMLDB_TYPE_CHAR, '10', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('currency', XMLDB_TYPE_CHAR, '3', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('defaultroleid', XMLDB_TYPE_INTEGER, '4', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        $f = $table->addFieldInfo('defaultrolename', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, NULL, null, null, null);
        // PK and indexes
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addIndexInfo('hostid_remoteid', XMLDB_INDEX_UNIQUE, array('hostid', 'remoteid'));
        // Create the table
        $result = $result && create_table($table);
        $table = new XMLDBTable('mnet_enrol_assignments');
        $table->comment = 'Information about enrolments on courses on remote hosts';
        $f = $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', false, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $f = $table->addFieldInfo('userid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        $f = $table->addFieldInfo('hostid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        $f = $table->addFieldInfo('courseid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        $f = $table->addFieldInfo('rolename', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('enroltime', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, NULL, null, null, 0);
        $f = $table->addFieldInfo('enroltype', XMLDB_TYPE_CHAR, '20', null, XMLDB_NOTNULL, NULL, null, null, null);
        // PK and indexes
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addIndexInfo('hostid_courseid', XMLDB_INDEX_NOTUNIQUE, array('hostid', 'courseid'));
        $table->addIndexInfo('userid', XMLDB_INDEX_NOTUNIQUE, array('userid'));
        // Create the table
        $result = $result && create_table($table);
        upgrade_main_savepoint($result, 2007010301);
    }
    if ($result && $oldversion < 2007010404) {
        /// Define field shortname to be added to user_info_field
        $table = new XMLDBTable('user_info_field');
        $field = new XMLDBField('shortname');
        $field->setAttributes(XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, null, 'shortname', 'id');
        /// Launch add field shortname
        $result = $result && add_field($table, $field);
        /// Changing type of field name on table user_info_field to text
        $table = new XMLDBTable('user_info_field');
        $field = new XMLDBField('name');
        $field->setAttributes(XMLDB_TYPE_TEXT, 'big', null, XMLDB_NOTNULL, null, null, null, null, 'shortname');
        /// Launch change of type for field name
        $result = $result && change_field_type($table, $field);
        /// For existing fields use 'name' as the 'shortname' entry
        if ($fields = get_records_select('user_info_field', '', '', 'id, name')) {
            foreach ($fields as $field) {
                $field->shortname = clean_param($field->name, PARAM_ALPHANUM);
                $result && update_record('user_info_field', $field);
            }
        }
        upgrade_main_savepoint($result, 2007010404);
    }
    if ($result && $oldversion < 2007011501) {
        if (!empty($CFG->enablerecordcache) && empty($CFG->rcache) && empty($CFG->cachetype) && empty($CFG->intcachemax)) {
            set_config('cachetype', 'internal');
            set_config('rcache', true);
            set_config('intcachemax', $CFG->enablerecordcache);
            unset_config('enablerecordcache');
            unset($CFG->enablerecordcache);
        }
        upgrade_main_savepoint($result, 2007011501);
    }
    if ($result && $oldversion < 2007012100) {
        /// Some old PG servers have user->firstname & user->lastname with 30cc. They must be 100cc.
        /// Fixing that conditionally. MDL-7110
        if ($CFG->dbfamily == 'postgres') {
            /// Get Metadata from user table
            $cols = array_change_key_case($db->MetaColumns($CFG->prefix . 'user'), CASE_LOWER);
            /// Process user->firstname if needed
            if ($col = $cols['firstname']) {
                if ($col->max_length < 100) {
                    /// Changing precision of field firstname on table user to (100)
                    $table = new XMLDBTable('user');
                    $field = new XMLDBField('firstname');
                    $field->setAttributes(XMLDB_TYPE_CHAR, '100', null, XMLDB_NOTNULL, null, null, null, null, 'idnumber');
                    /// Launch change of precision for field firstname
                    $result = $result && change_field_precision($table, $field);
                }
            }
            /// Process user->lastname if needed
            if ($col = $cols['lastname']) {
                if ($col->max_length < 100) {
                    /// Changing precision of field lastname on table user to (100)
                    $table = new XMLDBTable('user');
                    $field = new XMLDBField('lastname');
                    $field->setAttributes(XMLDB_TYPE_CHAR, '100', null, XMLDB_NOTNULL, null, null, null, null, 'firstname');
                    /// Launch change of precision for field lastname
                    $result = $result && change_field_precision($table, $field);
                }
            }
        }
        upgrade_main_savepoint($result, 2007012100);
    }
    if ($result && $oldversion < 2007012101) {
        /// Changing precision of field lang on table course to (30)
        $table = new XMLDBTable('course');
        $field = new XMLDBField('lang');
        $field->setAttributes(XMLDB_TYPE_CHAR, '30', null, XMLDB_NOTNULL, null, null, null, null, 'groupmodeforce');
        /// Launch change of precision for field course->lang
        $result = $result && change_field_precision($table, $field);
        /// Changing precision of field lang on table user to (30)
        $table = new XMLDBTable('user');
        $field = new XMLDBField('lang');
        $field->setAttributes(XMLDB_TYPE_CHAR, '30', null, XMLDB_NOTNULL, null, null, null, 'en', 'country');
        /// Launch change of precision for field user->lang
        $result = $result && change_field_precision($table, $field);
        upgrade_main_savepoint($result, 2007012101);
    }
    if ($result && $oldversion < 2007012400) {
        /// Rename field access on table mnet_sso_access_control to accessctrl
        $table = new XMLDBTable('mnet_sso_access_control');
        $field = new XMLDBField('access');
        $field->setAttributes(XMLDB_TYPE_CHAR, '20', null, XMLDB_NOTNULL, null, null, null, 'allow', 'mnet_host_id');
        /// Launch rename field accessctrl
        $result = $result && rename_field($table, $field, 'accessctrl');
        upgrade_main_savepoint($result, 2007012400);
    }
    if ($result && $oldversion < 2007012500) {
        execute_sql("DELETE FROM {$CFG->prefix}user WHERE username='******'", true);
        upgrade_main_savepoint($result, 2007012500);
    }
    if ($result && $oldversion < 2007020400) {
        /// Only for MySQL and PG, declare the user->ajax field as not null. MDL-8421.
        if ($CFG->dbfamily == 'mysql' || $CFG->dbfamily == 'postgres') {
            /// Changing nullability of field ajax on table user to not null
            $table = new XMLDBTable('user');
            $field = new XMLDBField('ajax');
            $field->setAttributes(XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '1', 'htmleditor');
            /// Launch change of nullability for field ajax
            $result = $result && change_field_notnull($table, $field);
        }
        upgrade_main_savepoint($result, 2007020400);
    }
    if (!empty($CFG->rolesactive) && $result && $oldversion < 2007021401) {
        /// create default logged in user role if not present - upgrade rom 1.7.x
        if (empty($CFG->defaultuserroleid) or empty($CFG->guestroleid) or $CFG->defaultuserroleid == $CFG->guestroleid) {
            if (!get_records('role', 'shortname', 'user')) {
                $userroleid = create_role(addslashes(get_string('authenticateduser')), 'user', addslashes(get_string('authenticateduserdescription')), 'moodle/legacy:user');
                if ($userroleid) {
                    reset_role_capabilities($userroleid);
                    set_config('defaultuserroleid', $userroleid);
                }
            }
        }
        upgrade_main_savepoint($result, 2007021401);
    }
    if ($result && $oldversion < 2007021501) {
        /// delete removed setting from config
        unset_config('tabselectedtofront');
        upgrade_main_savepoint($result, 2007021501);
    }
    if ($result && $oldversion < 2007032200) {
        /// Define table role_sortorder to be created
        $table = new XMLDBTable('role_sortorder');
        /// Adding fields to table role_sortorder
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('userid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('roleid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('contextid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('sortoder', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null, null, null);
        /// Adding keys to table role_sortorder
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addKeyInfo('userid', XMLDB_KEY_FOREIGN, array('userid'), 'user', array('id'));
        $table->addKeyInfo('roleid', XMLDB_KEY_FOREIGN, array('roleid'), 'role', array('id'));
        $table->addKeyInfo('contextid', XMLDB_KEY_FOREIGN, array('contextid'), 'context', array('id'));
        /// Adding indexes to table role_sortorder
        $table->addIndexInfo('userid-roleid-contextid', XMLDB_INDEX_UNIQUE, array('userid', 'roleid', 'contextid'));
        /// Launch create table for role_sortorder
        $result = $result && create_table($table);
        upgrade_main_savepoint($result, 2007032200);
    }
    /// code to change lenghen tag field to 255, MDL-9095
    if ($result && $oldversion < 2007040400) {
        /// Define index text (not unique) to be dropped form tags
        $table = new XMLDBTable('tags');
        $index = new XMLDBIndex('text');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('text'));
        /// Launch drop index text
        $result = $result && drop_index($table, $index);
        $field = new XMLDBField('text');
        $field->setAttributes(XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, null, null, 'userid');
        /// Launch change of type for field text
        $result = $result && change_field_type($table, $field);
        $index = new XMLDBIndex('text');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('text'));
        /// Launch add index text
        $result = $result && add_index($table, $index);
        upgrade_main_savepoint($result, 2007040400);
    }
    if ($result && $oldversion < 2007041100) {
        /// Define field idnumber to be added to course_modules
        $table = new XMLDBTable('course_modules');
        $field = new XMLDBField('idnumber');
        $field->setAttributes(XMLDB_TYPE_CHAR, '100', null, null, null, null, null, null, 'section');
        /// Launch add field idnumber
        $result = $result && add_field($table, $field);
        upgrade_main_savepoint($result, 2007041100);
    }
    /* Changes to the custom profile menu type - store values rather than indices.
       We could do all this with one tricky SQL statement but it's a one-off so no
       harm in using PHP loops */
    if ($result && $oldversion < 2007041600) {
        /// Get the menu fields
        if ($fields = get_records('user_info_field', 'datatype', 'menu')) {
            foreach ($fields as $field) {
                /// Get user data for the menu field
                if ($data = get_records('user_info_data', 'fieldid', $field->id)) {
                    /// Get the menu options
                    $options = explode("\n", $field->param1);
                    foreach ($data as $d) {
                        $key = array_search($d->data, $options);
                        /// If the data is an integer and is not one of the options,
                        /// set the respective option value
                        if (is_int($d->data) and ($key === NULL or $key === false) and isset($options[$d->data])) {
                            $d->data = $options[$d->data];
                            $result = $result && update_record('user_info_data', $d);
                        }
                    }
                }
            }
        }
        upgrade_main_savepoint($result, 2007041600);
    }
    /// adding new gradebook tables
    if ($result && $oldversion < 2007041800) {
        /// Define table events_handlers to be created
        $table = new XMLDBTable('events_handlers');
        /// Adding fields to table events_handlers
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('eventname', XMLDB_TYPE_CHAR, '166', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('handlermodule', XMLDB_TYPE_CHAR, '166', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('handlerfile', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('handlerfunction', XMLDB_TYPE_TEXT, 'medium', null, null, null, null, null, null);
        /// Adding keys to table events_handlers
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        /// Adding indexes to table events_handlers
        $table->addIndexInfo('eventname-handlermodule', XMLDB_INDEX_UNIQUE, array('eventname', 'handlermodule'));
        /// Launch create table for events_handlers
        $result = $result && create_table($table);
        /// Define table events_queue to be created
        $table = new XMLDBTable('events_queue');
        /// Adding fields to table events_queue
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('eventdata', XMLDB_TYPE_TEXT, 'big', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('schedule', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('stackdump', XMLDB_TYPE_TEXT, 'medium', null, null, null, null, null, null);
        $table->addFieldInfo('userid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('timecreated', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        /// Adding keys to table events_queue
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addKeyInfo('userid', XMLDB_KEY_FOREIGN, array('userid'), 'user', array('id'));
        /// Launch create table for events_queue
        $result = $result && create_table($table);
        /// Define table events_queue_handlers to be created
        $table = new XMLDBTable('events_queue_handlers');
        /// Adding fields to table events_queue_handlers
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('queuedeventid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('handlerid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('status', XMLDB_TYPE_INTEGER, '10', null, null, null, null, null, null);
        $table->addFieldInfo('errormessage', XMLDB_TYPE_TEXT, 'medium', null, null, null, null, null, null);
        $table->addFieldInfo('timemodified', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        /// Adding keys to table events_queue_handlers
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addKeyInfo('queuedeventid', XMLDB_KEY_FOREIGN, array('queuedeventid'), 'events_queue', array('id'));
        $table->addKeyInfo('handlerid', XMLDB_KEY_FOREIGN, array('handlerid'), 'events_handlers', array('id'));
        /// Launch create table for events_queue_handlers
        $result = $result && create_table($table);
        upgrade_main_savepoint($result, 2007041800);
    }
    if ($result && $oldversion < 2007043001) {
        /// Define field schedule to be added to events_handlers
        $table = new XMLDBTable('events_handlers');
        $field = new XMLDBField('schedule');
        $field->setAttributes(XMLDB_TYPE_CHAR, '255', null, null, null, null, null, null, 'handlerfunction');
        /// Launch add field schedule
        $result = $result && add_field($table, $field);
        /// Define field status to be added to events_handlers
        $table = new XMLDBTable('events_handlers');
        $field = new XMLDBField('status');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'schedule');
        /// Launch add field status
        $result = $result && add_field($table, $field);
        upgrade_main_savepoint($result, 2007043001);
    }
    if ($result && $oldversion < 2007050201) {
        /// Define field theme to be added to course_categories
        $table = new XMLDBTable('course_categories');
        $field = new XMLDBField('theme');
        $field->setAttributes(XMLDB_TYPE_CHAR, '50', null, null, null, null, null, null, 'path');
        /// Launch add field theme
        $result = $result && add_field($table, $field);
        upgrade_main_savepoint($result, 2007050201);
    }
    if ($result && $oldversion < 2007051100) {
        /// Define field forceunique to be added to user_info_field
        $table = new XMLDBTable('user_info_field');
        $field = new XMLDBField('forceunique');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '2', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'visible');
        /// Launch add field forceunique
        $result = $result && add_field($table, $field);
        /// Define field signup to be added to user_info_field
        $table = new XMLDBTable('user_info_field');
        $field = new XMLDBField('signup');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '2', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'forceunique');
        /// Launch add field signup
        $result = $result && add_field($table, $field);
        upgrade_main_savepoint($result, 2007051100);
    }
    if (!empty($CFG->rolesactive) && $result && $oldversion < 2007051801) {
        // Get the role id of the "Auth. User" role and check if the default role id is different
        // note: use of assign_capability() is discouraged in upgrade script!
        $userrole = get_record('role', 'shortname', 'user');
        $defaultroleid = $CFG->defaultuserroleid;
        if ($defaultroleid != $userrole->id) {
            //  Add in the new moodle/my:manageblocks capibility to the default user role
            $context = get_context_instance(CONTEXT_SYSTEM, SITEID);
            assign_capability('moodle/my:manageblocks', CAP_ALLOW, $defaultroleid, $context->id);
        }
        upgrade_main_savepoint($result, 2007051801);
    }
    if ($result && $oldversion < 2007052200) {
        /// Define field schedule to be dropped from events_queue
        $table = new XMLDBTable('events_queue');
        $field = new XMLDBField('schedule');
        /// Launch drop field stackdump
        $result = $result && drop_field($table, $field);
        upgrade_main_savepoint($result, 2007052200);
    }
    if ($result && $oldversion < 2007052300) {
        require_once $CFG->dirroot . '/question/upgrade.php';
        $result = $result && question_remove_rqp_qtype();
        upgrade_main_savepoint($result, 2007052300);
    }
    if ($result && $oldversion < 2007060500) {
        /// Define field usermodified to be added to post
        $table = new XMLDBTable('post');
        $field = new XMLDBField('usermodified');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null, 'created');
        /// Launch add field usermodified
        $result = $result && add_field($table, $field);
        /// Define key usermodified (foreign) to be added to post
        $table = new XMLDBTable('post');
        $key = new XMLDBKey('usermodified');
        $key->setAttributes(XMLDB_KEY_FOREIGN, array('usermodified'), 'user', array('id'));
        /// Launch add key usermodified
        $result = $result && add_key($table, $key);
        upgrade_main_savepoint($result, 2007060500);
    }
    if ($result && $oldversion < 2007070603) {
        // Small update of guest user to be 100% sure it has the correct mnethostid (MDL-10375)
        set_field('user', 'mnethostid', $CFG->mnet_localhost_id, 'username', 'guest');
        upgrade_main_savepoint($result, 2007070603);
    }
    if ($result && $oldversion < 2007071400) {
        /**
         ** mnet application table
         **/
        $table = new XMLDBTable('mnet_application');
        $table->comment = 'Information about applications on remote hosts';
        $f = $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', false, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $f = $table->addFieldInfo('name', XMLDB_TYPE_CHAR, '50', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('display_name', XMLDB_TYPE_CHAR, '50', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('xmlrpc_server_url', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, NULL, null, null, null);
        $f = $table->addFieldInfo('sso_land_url', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, NULL, null, null, null);
        // PK and indexes
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        // Create the table
        $result = $result && create_table($table);
        // Insert initial applications (moodle and mahara)
        $application = new stdClass();
        $application->name = 'moodle';
        $application->display_name = 'Moodle';
        $application->xmlrpc_server_url = '/mnet/xmlrpc/server.php';
        $application->sso_land_url = '/auth/mnet/land.php';
        if ($result) {
            $newid = insert_record('mnet_application', $application, false);
        }
        $application = new stdClass();
        $application->name = 'mahara';
        $application->display_name = 'Mahara';
        $application->xmlrpc_server_url = '/api/xmlrpc/server.php';
        $application->sso_land_url = '/auth/xmlrpc/land.php';
        $result = $result && insert_record('mnet_application', $application, false);
        // New mnet_host->applicationid field
        $table = new XMLDBTable('mnet_host');
        $field = new XMLDBField('applicationid');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, $newid, 'last_log_id');
        $result = $result && add_field($table, $field);
        /// Define key applicationid (foreign) to be added to mnet_host
        $table = new XMLDBTable('mnet_host');
        $key = new XMLDBKey('applicationid');
        $key->setAttributes(XMLDB_KEY_FOREIGN, array('applicationid'), 'mnet_application', array('id'));
        /// Launch add key applicationid
        $result = $result && add_key($table, $key);
        upgrade_main_savepoint($result, 2007071400);
    }
    if ($result && $oldversion < 2007071607) {
        require_once $CFG->dirroot . '/question/upgrade.php';
        $result = $result && question_remove_rqp_qtype_config_string();
        upgrade_main_savepoint($result, 2007071607);
    }
    if ($result && $oldversion < 2007072200) {
        /// Remove all grade tables used in development phases - we need new empty tables for final gradebook upgrade
        $tables = array('grade_categories', 'grade_items', 'grade_calculations', 'grade_grades', 'grade_grades_raw', 'grade_grades_final', 'grade_grades_text', 'grade_outcomes', 'grade_outcomes_courses', 'grade_history', 'grade_import_newitem', 'grade_import_values');
        foreach ($tables as $table) {
            $table = new XMLDBTable($table);
            if (table_exists($table)) {
                drop_table($table);
            }
        }
        $tables = array('grade_categories_history', 'grade_items_history', 'grade_grades_history', 'grade_grades_text_history', 'grade_scale_history', 'grade_outcomes_history');
        foreach ($tables as $table) {
            $table = new XMLDBTable($table);
            if (table_exists($table)) {
                drop_table($table);
            }
        }
        /// Define table grade_outcomes to be created
        $table = new XMLDBTable('grade_outcomes');
        /// Adding fields to table grade_outcomes
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('courseid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('shortname', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('fullname', XMLDB_TYPE_TEXT, 'small', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('scaleid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('description', XMLDB_TYPE_TEXT, 'small', null, null, null, null, null, null);
        $table->addFieldInfo('timecreated', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('timemodified', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('usermodified', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        /// Adding keys to table grade_outcomes
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addKeyInfo('courseid', XMLDB_KEY_FOREIGN, array('courseid'), 'course', array('id'));
        $table->addKeyInfo('scaleid', XMLDB_KEY_FOREIGN, array('scaleid'), 'scale', array('id'));
        $table->addKeyInfo('usermodified', XMLDB_KEY_FOREIGN, array('usermodified'), 'user', array('id'));
        /// Launch create table for grade_outcomes
        $result = $result && create_table($table);
        /// Define table grade_categories to be created
        $table = new XMLDBTable('grade_categories');
        /// Adding fields to table grade_categories
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('courseid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('parent', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('depth', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('path', XMLDB_TYPE_CHAR, '255', null, null, null, null, null, null);
        $table->addFieldInfo('fullname', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('aggregation', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('keephigh', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('droplow', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('aggregateonlygraded', XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('aggregateoutcomes', XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('aggregatesubcats', XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('timecreated', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('timemodified', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        /// Adding keys to table grade_categories
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addKeyInfo('courseid', XMLDB_KEY_FOREIGN, array('courseid'), 'course', array('id'));
        $table->addKeyInfo('parent', XMLDB_KEY_FOREIGN, array('parent'), 'grade_categories', array('id'));
        /// Launch create table for grade_categories
        $result = $result && create_table($table);
        /// Define table grade_items to be created
        $table = new XMLDBTable('grade_items');
        /// Adding fields to table grade_items
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('courseid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('categoryid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('itemname', XMLDB_TYPE_CHAR, '255', null, null, null, null, null, null);
        $table->addFieldInfo('itemtype', XMLDB_TYPE_CHAR, '30', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('itemmodule', XMLDB_TYPE_CHAR, '30', null, null, null, null, null, null);
        $table->addFieldInfo('iteminstance', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('itemnumber', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('iteminfo', XMLDB_TYPE_TEXT, 'medium', null, null, null, null, null, null);
        $table->addFieldInfo('idnumber', XMLDB_TYPE_CHAR, '255', null, null, null, null, null, null);
        $table->addFieldInfo('calculation', XMLDB_TYPE_TEXT, 'medium', null, null, null, null, null, null);
        $table->addFieldInfo('gradetype', XMLDB_TYPE_INTEGER, '4', null, XMLDB_NOTNULL, null, null, null, '1');
        $table->addFieldInfo('grademax', XMLDB_TYPE_NUMBER, '10, 5', null, XMLDB_NOTNULL, null, null, null, '100');
        $table->addFieldInfo('grademin', XMLDB_TYPE_NUMBER, '10, 5', null, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('scaleid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('outcomeid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('gradepass', XMLDB_TYPE_NUMBER, '10, 5', null, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('multfactor', XMLDB_TYPE_NUMBER, '10, 5', null, XMLDB_NOTNULL, null, null, null, '1.0');
        $table->addFieldInfo('plusfactor', XMLDB_TYPE_NUMBER, '10, 5', null, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('aggregationcoef', XMLDB_TYPE_NUMBER, '10, 5', null, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('sortorder', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('display', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('decimals', XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('hidden', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('locked', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('locktime', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('needsupdate', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('timecreated', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('timemodified', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        /// Adding keys to table grade_items
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addKeyInfo('courseid', XMLDB_KEY_FOREIGN, array('courseid'), 'course', array('id'));
        $table->addKeyInfo('categoryid', XMLDB_KEY_FOREIGN, array('categoryid'), 'grade_categories', array('id'));
        $table->addKeyInfo('scaleid', XMLDB_KEY_FOREIGN, array('scaleid'), 'scale', array('id'));
        $table->addKeyInfo('outcomeid', XMLDB_KEY_FOREIGN, array('outcomeid'), 'grade_outcomes', array('id'));
        /// Adding indexes to table grade_grades
        $table->addIndexInfo('locked-locktime', XMLDB_INDEX_NOTUNIQUE, array('locked', 'locktime'));
        $table->addIndexInfo('itemtype-needsupdate', XMLDB_INDEX_NOTUNIQUE, array('itemtype', 'needsupdate'));
        $table->addIndexInfo('gradetype', XMLDB_INDEX_NOTUNIQUE, array('gradetype'));
        /// Launch create table for grade_items
        $result = $result && create_table($table);
        /// Define table grade_grades to be created
        $table = new XMLDBTable('grade_grades');
        /// Adding fields to table grade_grades
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('itemid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('userid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('rawgrade', XMLDB_TYPE_NUMBER, '10, 5', null, null, null, null, null, null);
        $table->addFieldInfo('rawgrademax', XMLDB_TYPE_NUMBER, '10, 5', null, XMLDB_NOTNULL, null, null, null, '100');
        $table->addFieldInfo('rawgrademin', XMLDB_TYPE_NUMBER, '10, 5', null, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('rawscaleid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('usermodified', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('finalgrade', XMLDB_TYPE_NUMBER, '10, 5', null, null, null, null, null, null);
        $table->addFieldInfo('hidden', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('locked', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('locktime', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('exported', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('overridden', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('excluded', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('feedback', XMLDB_TYPE_TEXT, 'medium', null, null, null, null, null, null);
        $table->addFieldInfo('feedbackformat', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('information', XMLDB_TYPE_TEXT, 'medium', null, null, null, null, null, null);
        $table->addFieldInfo('informationformat', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('timecreated', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('timemodified', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        /// Adding keys to table grade_grades
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addKeyInfo('itemid', XMLDB_KEY_FOREIGN, array('itemid'), 'grade_items', array('id'));
        $table->addKeyInfo('userid', XMLDB_KEY_FOREIGN, array('userid'), 'user', array('id'));
        $table->addKeyInfo('rawscaleid', XMLDB_KEY_FOREIGN, array('rawscaleid'), 'scale', array('id'));
        $table->addKeyInfo('usermodified', XMLDB_KEY_FOREIGN, array('usermodified'), 'user', array('id'));
        /// Adding indexes to table grade_grades
        $table->addIndexInfo('locked-locktime', XMLDB_INDEX_NOTUNIQUE, array('locked', 'locktime'));
        /// Launch create table for grade_grades
        $result = $result && create_table($table);
        /// Define table grade_outcomes_history to be created
        $table = new XMLDBTable('grade_outcomes_history');
        /// Adding fields to table grade_outcomes_history
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('action', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('oldid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('source', XMLDB_TYPE_CHAR, '255', null, null, null, null, null, null);
        $table->addFieldInfo('timemodified', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('loggeduser', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('courseid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('shortname', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('fullname', XMLDB_TYPE_TEXT, 'small', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('scaleid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('description', XMLDB_TYPE_TEXT, 'small', null, null, null, null, null, null);
        /// Adding keys to table grade_outcomes_history
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addKeyInfo('oldid', XMLDB_KEY_FOREIGN, array('oldid'), 'grade_outcomes', array('id'));
        $table->addKeyInfo('courseid', XMLDB_KEY_FOREIGN, array('courseid'), 'course', array('id'));
        $table->addKeyInfo('scaleid', XMLDB_KEY_FOREIGN, array('scaleid'), 'scale', array('id'));
        $table->addKeyInfo('loggeduser', XMLDB_KEY_FOREIGN, array('loggeduser'), 'user', array('id'));
        /// Adding indexes to table grade_outcomes_history
        $table->addIndexInfo('action', XMLDB_INDEX_NOTUNIQUE, array('action'));
        /// Launch create table for grade_outcomes_history
        $result = $result && create_table($table);
        /// Define table grade_categories_history to be created
        $table = new XMLDBTable('grade_categories_history');
        /// Adding fields to table grade_categories_history
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('action', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('oldid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('source', XMLDB_TYPE_CHAR, '255', null, null, null, null, null, null);
        $table->addFieldInfo('timemodified', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('loggeduser', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('courseid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('parent', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('depth', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('path', XMLDB_TYPE_CHAR, '255', null, null, null, null, null, null);
        $table->addFieldInfo('fullname', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('aggregation', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('keephigh', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('droplow', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('aggregateonlygraded', XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('aggregateoutcomes', XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('aggregatesubcats', XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        /// Adding keys to table grade_categories_history
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addKeyInfo('oldid', XMLDB_KEY_FOREIGN, array('oldid'), 'grade_categories', array('id'));
        $table->addKeyInfo('courseid', XMLDB_KEY_FOREIGN, array('courseid'), 'course', array('id'));
        $table->addKeyInfo('parent', XMLDB_KEY_FOREIGN, array('parent'), 'grade_categories', array('id'));
        $table->addKeyInfo('loggeduser', XMLDB_KEY_FOREIGN, array('loggeduser'), 'user', array('id'));
        /// Adding indexes to table grade_categories_history
        $table->addIndexInfo('action', XMLDB_INDEX_NOTUNIQUE, array('action'));
        /// Launch create table for grade_categories_history
        $result = $result && create_table($table);
        /// Define table grade_items_history to be created
        $table = new XMLDBTable('grade_items_history');
        /// Adding fields to table grade_items_history
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('action', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('oldid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('source', XMLDB_TYPE_CHAR, '255', null, null, null, null, null, null);
        $table->addFieldInfo('timemodified', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('loggeduser', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('courseid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('categoryid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('itemname', XMLDB_TYPE_CHAR, '255', null, null, null, null, null, null);
        $table->addFieldInfo('itemtype', XMLDB_TYPE_CHAR, '30', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('itemmodule', XMLDB_TYPE_CHAR, '30', null, null, null, null, null, null);
        $table->addFieldInfo('iteminstance', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('itemnumber', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('iteminfo', XMLDB_TYPE_TEXT, 'medium', null, null, null, null, null, null);
        $table->addFieldInfo('idnumber', XMLDB_TYPE_CHAR, '255', null, null, null, null, null, null);
        $table->addFieldInfo('calculation', XMLDB_TYPE_TEXT, 'medium', null, null, null, null, null, null);
        $table->addFieldInfo('gradetype', XMLDB_TYPE_INTEGER, '4', null, XMLDB_NOTNULL, null, null, null, '1');
        $table->addFieldInfo('grademax', XMLDB_TYPE_NUMBER, '10, 5', null, XMLDB_NOTNULL, null, null, null, '100');
        $table->addFieldInfo('grademin', XMLDB_TYPE_NUMBER, '10, 5', null, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('scaleid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('outcomeid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('gradepass', XMLDB_TYPE_NUMBER, '10, 5', null, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('multfactor', XMLDB_TYPE_NUMBER, '10, 5', null, XMLDB_NOTNULL, null, null, null, '1.0');
        $table->addFieldInfo('plusfactor', XMLDB_TYPE_NUMBER, '10, 5', null, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('aggregationcoef', XMLDB_TYPE_NUMBER, '10, 5', null, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('sortorder', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('display', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('decimals', XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('hidden', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('locked', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('locktime', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('needsupdate', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null, null, '0');
        /// Adding keys to table grade_items_history
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addKeyInfo('oldid', XMLDB_KEY_FOREIGN, array('oldid'), 'grade_items', array('id'));
        $table->addKeyInfo('courseid', XMLDB_KEY_FOREIGN, array('courseid'), 'course', array('id'));
        $table->addKeyInfo('categoryid', XMLDB_KEY_FOREIGN, array('categoryid'), 'grade_categories', array('id'));
        $table->addKeyInfo('scaleid', XMLDB_KEY_FOREIGN, array('scaleid'), 'scale', array('id'));
        $table->addKeyInfo('outcomeid', XMLDB_KEY_FOREIGN, array('outcomeid'), 'grade_outcomes', array('id'));
        $table->addKeyInfo('loggeduser', XMLDB_KEY_FOREIGN, array('loggeduser'), 'user', array('id'));
        /// Adding indexes to table grade_items_history
        $table->addIndexInfo('action', XMLDB_INDEX_NOTUNIQUE, array('action'));
        /// Launch create table for grade_items_history
        $result = $result && create_table($table);
        /// Define table grade_grades_history to be created
        $table = new XMLDBTable('grade_grades_history');
        /// Adding fields to table grade_grades_history
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('action', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('oldid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('source', XMLDB_TYPE_CHAR, '255', null, null, null, null, null, null);
        $table->addFieldInfo('timemodified', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('loggeduser', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('itemid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('userid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('rawgrade', XMLDB_TYPE_NUMBER, '10, 5', null, null, null, null, null, null);
        $table->addFieldInfo('rawgrademax', XMLDB_TYPE_NUMBER, '10, 5', null, XMLDB_NOTNULL, null, null, null, '100');
        $table->addFieldInfo('rawgrademin', XMLDB_TYPE_NUMBER, '10, 5', null, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('rawscaleid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('usermodified', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('finalgrade', XMLDB_TYPE_NUMBER, '10, 5', null, null, null, null, null, null);
        $table->addFieldInfo('hidden', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('locked', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('locktime', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('exported', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('overridden', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('excluded', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('feedback', XMLDB_TYPE_TEXT, 'medium', null, null, null, null, null, null);
        $table->addFieldInfo('feedbackformat', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('information', XMLDB_TYPE_TEXT, 'medium', null, null, null, null, null, null);
        $table->addFieldInfo('informationformat', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        /// Adding keys to table grade_grades_history
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addKeyInfo('oldid', XMLDB_KEY_FOREIGN, array('oldid'), 'grade_grades', array('id'));
        $table->addKeyInfo('itemid', XMLDB_KEY_FOREIGN, array('itemid'), 'grade_items', array('id'));
        $table->addKeyInfo('userid', XMLDB_KEY_FOREIGN, array('userid'), 'user', array('id'));
        $table->addKeyInfo('rawscaleid', XMLDB_KEY_FOREIGN, array('rawscaleid'), 'scale', array('id'));
        $table->addKeyInfo('usermodified', XMLDB_KEY_FOREIGN, array('usermodified'), 'user', array('id'));
        $table->addKeyInfo('loggeduser', XMLDB_KEY_FOREIGN, array('loggeduser'), 'user', array('id'));
        /// Adding indexes to table grade_grades_history
        $table->addIndexInfo('action', XMLDB_INDEX_NOTUNIQUE, array('action'));
        /// Launch create table for grade_grades_history
        $result = $result && create_table($table);
        /// upgrade the old 1.8 gradebook - migrade data into new grade tables
        if ($result) {
            require_once $CFG->libdir . '/db/upgradelib.php';
            if ($rs = get_recordset('course')) {
                while ($course = rs_fetch_next_record($rs)) {
                    // this function uses SQL only, it must not be changed after 1.9 goes stable!!
                    if (!upgrade_18_gradebook($course->id)) {
                        $result = false;
                        break;
                    }
                }
                rs_close($rs);
            }
        }
        upgrade_main_savepoint($result, 2007072200);
    }
    if ($result && $oldversion < 2007072400) {
        /// Dropping one DEFAULT in a TEXT column. It's was only one remaining
        /// since Moodle 1.7, so new servers won't have those anymore.
        /// Changing the default of field sessdata on table sessions2 to drop it
        $table = new XMLDBTable('sessions2');
        $field = new XMLDBField('sessdata');
        $field->setAttributes(XMLDB_TYPE_TEXT, 'big', null, null, null, null, null, null, 'modified');
        /// Launch change of default for field sessdata
        $result = $result && change_field_default($table, $field);
        upgrade_main_savepoint($result, 2007072400);
    }
    if ($result && $oldversion < 2007073100) {
        /// Define table grade_outcomes_courses to be created
        $table = new XMLDBTable('grade_outcomes_courses');
        /// Adding fields to table grade_outcomes_courses
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('courseid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('outcomeid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        /// Adding keys to table grade_outcomes_courses
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addKeyInfo('courseid', XMLDB_KEY_FOREIGN, array('courseid'), 'course', array('id'));
        $table->addKeyInfo('outcomeid', XMLDB_KEY_FOREIGN, array('outcomeid'), 'grade_outcomes', array('id'));
        $table->addKeyInfo('courseid-outcomeid', XMLDB_KEY_UNIQUE, array('courseid', 'outcomeid'));
        /// Launch create table for grade_outcomes_courses
        $result = $result && create_table($table);
        upgrade_main_savepoint($result, 2007073100);
    }
    if ($result && $oldversion < 2007073101) {
        // Add new tag tables
        /// Define table tag to be created
        $table = new XMLDBTable('tag');
        /// Adding fields to table tag
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '11', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('userid', XMLDB_TYPE_INTEGER, '11', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('name', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('tagtype', XMLDB_TYPE_CHAR, '255', null, null, null, null, null, null);
        $table->addFieldInfo('description', XMLDB_TYPE_TEXT, 'small', null, null, null, null, null, null);
        $table->addFieldInfo('descriptionformat', XMLDB_TYPE_INTEGER, '2', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('flag', XMLDB_TYPE_INTEGER, '4', XMLDB_UNSIGNED, null, null, null, null, '0');
        $table->addFieldInfo('timemodified', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        /// Adding keys to table tag
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        /// Adding indexes to table tag
        $table->addIndexInfo('name', XMLDB_INDEX_UNIQUE, array('name'));
        /// Launch create table for tag
        $result = $result && create_table($table);
        /// Define table tag_correlation to be created
        $table = new XMLDBTable('tag_correlation');
        /// Adding fields to table tag_correlation
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '11', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('tagid', XMLDB_TYPE_INTEGER, '11', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('correlatedtags', XMLDB_TYPE_TEXT, 'small', null, XMLDB_NOTNULL, null, null, null, null);
        /// Adding keys to table tag_correlation
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        /// Adding indexes to table tag_correlation
        $table->addIndexInfo('tagid', XMLDB_INDEX_UNIQUE, array('tagid'));
        /// Launch create table for tag_correlation
        $result = $result && create_table($table);
        /// Define table tag_instance to be created
        $table = new XMLDBTable('tag_instance');
        /// Adding fields to table tag_instance
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '11', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('tagid', XMLDB_TYPE_INTEGER, '11', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('itemtype', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('itemid', XMLDB_TYPE_INTEGER, '11', null, XMLDB_NOTNULL, null, null, null, null);
        /// Adding keys to table tag_instance
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        /// Adding indexes to table tag_instance
        $table->addIndexInfo('tagiditem', XMLDB_INDEX_NOTUNIQUE, array('tagid', 'itemtype', 'itemid'));
        /// Launch create table for tag_instance
        $result = $result && create_table($table);
        upgrade_main_savepoint($result, 2007073101);
    }
    if ($result && $oldversion < 2007073103) {
        /// Define field rawname to be added to tag
        $table = new XMLDBTable('tag');
        $field = new XMLDBField('rawname');
        $field->setAttributes(XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, null, null, 'name');
        /// Launch add field rawname
        $result = $result && add_field($table, $field);
        upgrade_main_savepoint($result, 2007073103);
    }
    if ($result && $oldversion < 2007073105) {
        /// Define field description to be added to grade_outcomes
        $table = new XMLDBTable('grade_outcomes');
        $field = new XMLDBField('description');
        if (!field_exists($table, $field)) {
            $field->setAttributes(XMLDB_TYPE_TEXT, 'small', null, null, null, null, null, null, 'scaleid');
            /// Launch add field description
            $result = $result && add_field($table, $field);
        }
        $table = new XMLDBTable('grade_outcomes_history');
        $field = new XMLDBField('description');
        if (!field_exists($table, $field)) {
            $field->setAttributes(XMLDB_TYPE_TEXT, 'small', null, null, null, null, null, null, 'scaleid');
            /// Launch add field description
            $result = $result && add_field($table, $field);
        }
        upgrade_main_savepoint($result, 2007073105);
    }
    // adding unique contraint on (courseid,shortname) of an outcome
    if ($result && $oldversion < 2007080100) {
        /// Define key courseid-shortname (unique) to be added to grade_outcomes
        $table = new XMLDBTable('grade_outcomes');
        $key = new XMLDBKey('courseid-shortname');
        $key->setAttributes(XMLDB_KEY_UNIQUE, array('courseid', 'shortname'));
        /// Launch add key courseid-shortname
        $result = $result && add_key($table, $key);
        upgrade_main_savepoint($result, 2007080100);
    }
    /// originally there was supportname and supportemail upgrade code - this is handled in upgradesettings.php instead
    if ($result && $oldversion < 2007080202) {
        /// Define index tagiditem (not unique) to be dropped form tag_instance
        $table = new XMLDBTable('tag_instance');
        $index = new XMLDBIndex('tagiditem');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('tagid', 'itemtype', 'itemid'));
        /// Launch drop index tagiditem
        drop_index($table, $index);
        /// Define index tagiditem (unique) to be added to tag_instance
        $table = new XMLDBTable('tag_instance');
        $index = new XMLDBIndex('tagiditem');
        $index->setAttributes(XMLDB_INDEX_UNIQUE, array('tagid', 'itemtype', 'itemid'));
        /// Launch add index tagiditem
        $result = $result && add_index($table, $index);
        upgrade_main_savepoint($result, 2007080202);
    }
    if ($result && $oldversion < 2007080300) {
        /// Define field aggregateoutcomes to be added to grade_categories
        $table = new XMLDBTable('grade_categories');
        $field = new XMLDBField('aggregateoutcomes');
        if (!field_exists($table, $field)) {
            $field->setAttributes(XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'droplow');
            /// Launch add field aggregateoutcomes
            $result = $result && add_field($table, $field);
        }
        /// Define field aggregateoutcomes to be added to grade_categories
        $table = new XMLDBTable('grade_categories_history');
        $field = new XMLDBField('aggregateoutcomes');
        if (!field_exists($table, $field)) {
            $field->setAttributes(XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'droplow');
            /// Launch add field aggregateoutcomes
            $result = $result && add_field($table, $field);
        }
        upgrade_main_savepoint($result, 2007080300);
    }
    if ($result && $oldversion < 2007080800) {
        /// Normalize course->shortname MDL-10026
        /// Changing precision of field shortname on table course to (100)
        $table = new XMLDBTable('course');
        $field = new XMLDBField('shortname');
        $field->setAttributes(XMLDB_TYPE_CHAR, '100', null, XMLDB_NOTNULL, null, null, null, null, 'fullname');
        /// Launch change of precision for field shortname
        $result = $result && change_field_precision($table, $field);
        upgrade_main_savepoint($result, 2007080800);
    }
    if ($result && $oldversion < 2007080900) {
        /// Add context.path & index
        $table = new XMLDBTable('context');
        $field = new XMLDBField('path');
        $field->setAttributes(XMLDB_TYPE_CHAR, '255', null, null, null, null, null, null, 'instanceid');
        $result = $result && add_field($table, $field);
        $table = new XMLDBTable('context');
        $index = new XMLDBIndex('path');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('path'));
        $result = $result && add_index($table, $index);
        /// Add context.depth
        $table = new XMLDBTable('context');
        $field = new XMLDBField('depth');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '2', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'path');
        $result = $result && add_field($table, $field);
        /// make sure the system context has proper data
        get_system_context(false);
        upgrade_main_savepoint($result, 2007080900);
    }
    if ($result && $oldversion < 2007080903) {
        /// Define index
        $table = new XMLDBTable('grade_grades');
        $index = new XMLDBIndex('locked-locktime');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('locked', 'locktime'));
        if (!index_exists($table, $index)) {
            /// Launch add index
            $result = $result && add_index($table, $index);
        }
        /// Define index
        $table = new XMLDBTable('grade_items');
        $index = new XMLDBIndex('locked-locktime');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('locked', 'locktime'));
        if (!index_exists($table, $index)) {
            /// Launch add index
            $result = $result && add_index($table, $index);
        }
        /// Define index itemtype-needsupdate (not unique) to be added to grade_items
        $table = new XMLDBTable('grade_items');
        $index = new XMLDBIndex('itemtype-needsupdate');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('itemtype', 'needsupdate'));
        if (!index_exists($table, $index)) {
            /// Launch add index itemtype-needsupdate
            $result = $result && add_index($table, $index);
        }
        /// Define index
        $table = new XMLDBTable('grade_items');
        $index = new XMLDBIndex('gradetype');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('gradetype'));
        if (!index_exists($table, $index)) {
            /// Launch add index
            $result = $result && add_index($table, $index);
        }
        upgrade_main_savepoint($result, 2007080903);
    }
    if ($result && $oldversion < 2007081000) {
        require_once $CFG->dirroot . '/question/upgrade.php';
        $result = $result && question_upgrade_context_etc();
        upgrade_main_savepoint($result, 2007081000);
    }
    if ($result && $oldversion < 2007081302) {
        require_once $CFG->libdir . '/db/upgradelib.php';
        if (table_exists(new XMLDBTable('groups_groupings'))) {
            /// IF 'groups_groupings' table exists, this is for 1.8.* only.
            $result = $result && upgrade_18_groups();
        } else {
            /// ELSE, 1.7.*/1.6.*/1.5.* - create 'groupings' and 'groupings_groups' + rename password to enrolmentkey
            $result = $result && upgrade_17_groups();
        }
        /// For both 1.8.* and 1.7.*/1.6.*..
        // delete not used fields
        $table = new XMLDBTable('groups');
        $field = new XMLDBField('theme');
        if (field_exists($table, $field)) {
            drop_field($table, $field);
        }
        $table = new XMLDBTable('groups');
        $field = new XMLDBField('lang');
        if (field_exists($table, $field)) {
            drop_field($table, $field);
        }
        /// Add groupingid field/f.key to 'course' table.
        $table = new XMLDBTable('course');
        $field = new XMLDBField('defaultgroupingid');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', $prev = 'groupmodeforce');
        $result = $result && add_field($table, $field);
        /// Add grouping ID, grouponly field/f.key to 'course_modules' table.
        $table = new XMLDBTable('course_modules');
        $field = new XMLDBField('groupingid');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', $prev = 'groupmode');
        $result = $result && add_field($table, $field);
        $table = new XMLDBTable('course_modules');
        $field = new XMLDBField('groupmembersonly');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '4', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', $prev = 'groupingid');
        $result = $result && add_field($table, $field);
        $table = new XMLDBTable('course_modules');
        $key = new XMLDBKey('groupingid');
        $key->setAttributes(XMLDB_KEY_FOREIGN, array('groupingid'), 'groupings', array('id'));
        $result = $result && add_key($table, $key);
        upgrade_main_savepoint($result, 2007081302);
    }
    if ($result && $oldversion < 2007082300) {
        /// Define field ordering to be added to tag_instance table
        $table = new XMLDBTable('tag_instance');
        $field = new XMLDBField('ordering');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'itemid');
        /// Launch add field rawname
        $result = $result && add_field($table, $field);
        upgrade_main_savepoint($result, 2007082300);
    }
    if ($result && $oldversion < 2007082700) {
        /// Define field timemodified to be added to tag_instance
        $table = new XMLDBTable('tag_instance');
        $field = new XMLDBField('timemodified');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'ordering');
        /// Launch add field timemodified
        $result = $result && add_field($table, $field);
        upgrade_main_savepoint($result, 2007082700);
    }
    /// migrate all tags table to tag - this code MUST use SQL only,
    /// because if the db structure changes the library functions will fail in future
    if ($result && $oldversion < 2007082701) {
        $tagrefs = array();
        // $tagrefs[$oldtagid] = $newtagid
        if ($rs = get_recordset('tags')) {
            $db->debug = false;
            while ($oldtag = rs_fetch_next_record($rs)) {
                $raw_normalized = clean_param($oldtag->text, PARAM_TAG);
                $normalized = moodle_strtolower($raw_normalized);
                // if this tag does not exist in tag table yet
                if (!($newtag = get_record('tag', 'name', $normalized, '', '', '', '', 'id'))) {
                    $itag = new object();
                    $itag->name = $normalized;
                    $itag->rawname = $raw_normalized;
                    $itag->userid = $oldtag->userid;
                    $itag->timemodified = time();
                    $itag->descriptionformat = 0;
                    // default format
                    if ($oldtag->type == 'official') {
                        $itag->tagtype = 'official';
                    } else {
                        $itag->tagtype = 'default';
                    }
                    if ($idx = insert_record('tag', $itag)) {
                        $tagrefs[$oldtag->id] = $idx;
                    }
                    // if this tag is already used by tag table
                } else {
                    $tagrefs[$oldtag->id] = $newtag->id;
                }
            }
            $db->debug = true;
            rs_close($rs);
        }
        // fetch all the tag instances and migrate them as well
        if ($rs = get_recordset('blog_tag_instance')) {
            $db->debug = false;
            while ($blogtag = rs_fetch_next_record($rs)) {
                if (array_key_exists($blogtag->tagid, $tagrefs)) {
                    $tag_instance = new object();
                    $tag_instance->tagid = $tagrefs[$blogtag->tagid];
                    $tag_instance->itemtype = 'blog';
                    $tag_instance->itemid = $blogtag->entryid;
                    $tag_instance->ordering = 1;
                    // does not matter much, because originally there was no ordering in blogs
                    $tag_instance->timemodified = time();
                    insert_record('tag_instance', $tag_instance);
                }
            }
            $db->debug = true;
            rs_close($rs);
        }
        unset($tagrefs);
        // release memory
        $table = new XMLDBTable('tags');
        drop_table($table);
        $table = new XMLDBTable('blog_tag_instance');
        drop_table($table);
        upgrade_main_savepoint($result, 2007082701);
    }
    /// MDL-11015, MDL-11016
    if ($result && $oldversion < 2007082800) {
        /// Changing type of field userid on table tag to int
        $table = new XMLDBTable('tag');
        $field = new XMLDBField('userid');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null, 'id');
        /// Launch change of type for field userid
        $result = $result && change_field_type($table, $field);
        /// Changing type of field descriptionformat on table tag to int
        $table = new XMLDBTable('tag');
        $field = new XMLDBField('descriptionformat');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '2', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'description');
        /// Launch change of type for field descriptionformat
        $result = $result && change_field_type($table, $field);
        /// Define key userid (foreign) to be added to tag
        $table = new XMLDBTable('tag');
        $key = new XMLDBKey('userid');
        $key->setAttributes(XMLDB_KEY_FOREIGN, array('userid'), 'user', array('id'));
        /// Launch add key userid
        $result = $result && add_key($table, $key);
        /// Define index tagiditem (unique) to be dropped form tag_instance
        $table = new XMLDBTable('tag_instance');
        $index = new XMLDBIndex('tagiditem');
        $index->setAttributes(XMLDB_INDEX_UNIQUE, array('tagid', 'itemtype', 'itemid'));
        /// Launch drop index tagiditem
        $result = $result && drop_index($table, $index);
        /// Changing type of field tagid on table tag_instance to int
        $table = new XMLDBTable('tag_instance');
        $field = new XMLDBField('tagid');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null, 'id');
        /// Launch change of type for field tagid
        $result = $result && change_field_type($table, $field);
        /// Define key tagid (foreign) to be added to tag_instance
        $table = new XMLDBTable('tag_instance');
        $key = new XMLDBKey('tagid');
        $key->setAttributes(XMLDB_KEY_FOREIGN, array('tagid'), 'tag', array('id'));
        /// Launch add key tagid
        $result = $result && add_key($table, $key);
        /// Changing sign of field itemid on table tag_instance to unsigned
        $table = new XMLDBTable('tag_instance');
        $field = new XMLDBField('itemid');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null, 'itemtype');
        /// Launch change of sign for field itemid
        $result = $result && change_field_unsigned($table, $field);
        /// Changing sign of field ordering on table tag_instance to unsigned
        $table = new XMLDBTable('tag_instance');
        $field = new XMLDBField('ordering');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null, 'itemid');
        /// Launch change of sign for field ordering
        $result = $result && change_field_unsigned($table, $field);
        /// Define index itemtype-itemid-tagid (unique) to be added to tag_instance
        $table = new XMLDBTable('tag_instance');
        $index = new XMLDBIndex('itemtype-itemid-tagid');
        $index->setAttributes(XMLDB_INDEX_UNIQUE, array('itemtype', 'itemid', 'tagid'));
        /// Launch add index itemtype-itemid-tagid
        $result = $result && add_index($table, $index);
        /// Define index tagid (unique) to be dropped form tag_correlation
        $table = new XMLDBTable('tag_correlation');
        $index = new XMLDBIndex('tagid');
        $index->setAttributes(XMLDB_INDEX_UNIQUE, array('tagid'));
        /// Launch drop index tagid
        $result = $result && drop_index($table, $index);
        /// Changing type of field tagid on table tag_correlation to int
        $table = new XMLDBTable('tag_correlation');
        $field = new XMLDBField('tagid');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null, 'id');
        /// Launch change of type for field tagid
        $result = $result && change_field_type($table, $field);
        /// Define key tagid (foreign) to be added to tag_correlation
        $table = new XMLDBTable('tag_correlation');
        $key = new XMLDBKey('tagid');
        $key->setAttributes(XMLDB_KEY_FOREIGN, array('tagid'), 'tag', array('id'));
        /// Launch add key tagid
        $result = $result && add_key($table, $key);
        upgrade_main_savepoint($result, 2007082800);
    }
    if ($result && $oldversion < 2007082801) {
        /// Define table user_private_key to be created
        $table = new XMLDBTable('user_private_key');
        /// Adding fields to table user_private_key
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('script', XMLDB_TYPE_CHAR, '128', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('value', XMLDB_TYPE_CHAR, '128', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('userid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('instance', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('iprestriction', XMLDB_TYPE_CHAR, '255', null, null, null, null, null, null);
        $table->addFieldInfo('validuntil', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('timecreated', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        /// Adding keys to table user_private_key
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addKeyInfo('userid', XMLDB_KEY_FOREIGN, array('userid'), 'user', array('id'));
        /// Adding indexes to table user_private_key
        $table->addIndexInfo('script-value', XMLDB_INDEX_NOTUNIQUE, array('script', 'value'));
        /// Launch create table for user_private_key
        $result = $result && create_table($table);
        upgrade_main_savepoint($result, 2007082801);
    }
    /// Going to modify the applicationid from int(1) to int(10). Dropping and
    /// re-creating the associated keys/indexes is mandatory to be cross-db. MDL-11042
    if ($result && $oldversion < 2007082803) {
        /// Define key applicationid (foreign) to be dropped form mnet_host
        $table = new XMLDBTable('mnet_host');
        $key = new XMLDBKey('applicationid');
        $key->setAttributes(XMLDB_KEY_FOREIGN, array('applicationid'), 'mnet_application', array('id'));
        /// Launch drop key applicationid
        $result = $result && drop_key($table, $key);
        /// Changing type of field applicationid on table mnet_host to int
        $field = new XMLDBField('applicationid');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '1', 'last_log_id');
        /// Launch change of type for field applicationid
        $result = $result && change_field_type($table, $field);
        /// Define key applicationid (foreign) to be added to mnet_host
        $key = new XMLDBKey('applicationid');
        $key->setAttributes(XMLDB_KEY_FOREIGN, array('applicationid'), 'mnet_application', array('id'));
        /// Launch add key applicationid
        $result = $result && add_key($table, $key);
        upgrade_main_savepoint($result, 2007082803);
    }
    if ($result && $oldversion < 2007090503) {
        /// Define field aggregatesubcats to be added to grade_categories
        $table = new XMLDBTable('grade_categories');
        $field = new XMLDBField('aggregatesubcats');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'aggregateoutcomes');
        if (!field_exists($table, $field)) {
            /// Launch add field aggregateonlygraded
            $result = $result && add_field($table, $field);
        }
        /// Define field aggregateonlygraded to be added to grade_categories
        $table = new XMLDBTable('grade_categories');
        $field = new XMLDBField('aggregateonlygraded');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'droplow');
        if (!field_exists($table, $field)) {
            /// Launch add field aggregateonlygraded
            $result = $result && add_field($table, $field);
        }
        /// Define field aggregatesubcats to be added to grade_categories_history
        $table = new XMLDBTable('grade_categories_history');
        $field = new XMLDBField('aggregatesubcats');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'aggregateoutcomes');
        if (!field_exists($table, $field)) {
            /// Launch add field aggregateonlygraded
            $result = $result && add_field($table, $field);
        }
        /// Define field aggregateonlygraded to be added to grade_categories_history
        $table = new XMLDBTable('grade_categories_history');
        $field = new XMLDBField('aggregateonlygraded');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'droplow');
        if (!field_exists($table, $field)) {
            /// Launch add field aggregateonlygraded
            $result = $result && add_field($table, $field);
        }
        /// upgrade path in grade_categrories table - now using slash on both ends
        $concat = sql_concat('path', "'/'");
        $sql = "UPDATE {$CFG->prefix}grade_categories SET path = {$concat} WHERE path NOT LIKE '/%/'";
        execute_sql($sql, true);
        /// convert old aggregation constants if needed
        for ($i = 0; $i <= 12; $i = $i + 2) {
            $j = $i + 1;
            $sql = "UPDATE {$CFG->prefix}grade_categories SET aggregation = {$i}, aggregateonlygraded = 1 WHERE aggregation = {$j}";
            execute_sql($sql, true);
        }
        upgrade_main_savepoint($result, 2007090503);
    }
    /// To have UNIQUE indexes over NULLable columns isn't cross-db at all
    /// so we create a non unique index and programatically enforce uniqueness
    if ($result && $oldversion < 2007090600) {
        /// Define index idnumber (unique) to be dropped form course_modules
        $table = new XMLDBTable('course_modules');
        $index = new XMLDBIndex('idnumber');
        $index->setAttributes(XMLDB_INDEX_UNIQUE, array('idnumber'));
        /// Launch drop index idnumber
        $result = $result && drop_index($table, $index);
        /// Define index idnumber-course (not unique) to be added to course_modules
        $table = new XMLDBTable('course_modules');
        $index = new XMLDBIndex('idnumber-course');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('idnumber', 'course'));
        /// Launch add index idnumber-course
        $result = $result && add_index($table, $index);
        /// Define index idnumber-courseid (not unique) to be added to grade_items
        $table = new XMLDBTable('grade_items');
        $index = new XMLDBIndex('idnumber-courseid');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('idnumber', 'courseid'));
        /// Launch add index idnumber-courseid
        $result = $result && add_index($table, $index);
        upgrade_main_savepoint($result, 2007090600);
    }
    /// Create the permanent context_temp table to be used by build_context_path()
    if ($result && $oldversion < 2007092001) {
        /// Define table context_temp to be created
        $table = new XMLDBTable('context_temp');
        /// Adding fields to table context_temp
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('path', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('depth', XMLDB_TYPE_INTEGER, '2', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        /// Adding keys to table context_temp
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        /// Launch create table for context_temp
        $result = $result && create_table($table);
        /// make sure category depths, parents and paths are ok, categories from 1.5 may not be properly initialized (MDL-12585)
        upgrade_fix_category_depths();
        /// Recalculate depths, paths and so on
        if (!empty($CFG->rolesactive)) {
            cleanup_contexts();
            // make sure all course, category and user contexts exist - we need it for grade letter upgrade, etc.
            create_contexts(CONTEXT_COURSE, false, true);
            create_contexts(CONTEXT_USER, false, true);
            // we need all contexts path/depths filled properly
            build_context_path(true, true);
            load_all_capabilities();
        } else {
            // upgrade from 1.6 - build all contexts
            create_contexts(null, true, true);
        }
        upgrade_main_savepoint($result, 2007092001);
    }
    /**
     * Merging of grade_grades_text back into grade_grades
     */
    if ($result && $oldversion < 2007092002) {
        /// Define field feedback to be added to grade_grades
        $table = new XMLDBTable('grade_grades');
        $field = new XMLDBField('feedback');
        $field->setAttributes(XMLDB_TYPE_TEXT, 'medium', null, null, null, null, null, null, 'excluded');
        if (!field_exists($table, $field)) {
            /// Launch add field feedback
            $result = $result && add_field($table, $field);
        }
        /// Define field feedbackformat to be added to grade_grades
        $table = new XMLDBTable('grade_grades');
        $field = new XMLDBField('feedbackformat');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'feedback');
        if (!field_exists($table, $field)) {
            /// Launch add field feedbackformat
            $result = $result && add_field($table, $field);
        }
        /// Define field information to be added to grade_grades
        $table = new XMLDBTable('grade_grades');
        $field = new XMLDBField('information');
        $field->setAttributes(XMLDB_TYPE_TEXT, 'medium', null, null, null, null, null, null, 'feedbackformat');
        if (!field_exists($table, $field)) {
            /// Launch add field information
            $result = $result && add_field($table, $field);
        }
        /// Define field informationformat to be added to grade_grades
        $table = new XMLDBTable('grade_grades');
        $field = new XMLDBField('informationformat');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'information');
        if (!field_exists($table, $field)) {
            /// Launch add field informationformat
            $result = $result && add_field($table, $field);
        }
        /// Define field feedback to be added to grade_grades_history
        $table = new XMLDBTable('grade_grades_history');
        $field = new XMLDBField('feedback');
        $field->setAttributes(XMLDB_TYPE_TEXT, 'medium', null, null, null, null, null, null, 'excluded');
        if (!field_exists($table, $field)) {
            /// Launch add field feedback
            $result = $result && add_field($table, $field);
        }
        /// Define field feedbackformat to be added to grade_grades_history
        $table = new XMLDBTable('grade_grades_history');
        $field = new XMLDBField('feedbackformat');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'feedback');
        if (!field_exists($table, $field)) {
            /// Launch add field feedbackformat
            $result = $result && add_field($table, $field);
        }
        /// Define field information to be added to grade_grades_history
        $table = new XMLDBTable('grade_grades_history');
        $field = new XMLDBField('information');
        $field->setAttributes(XMLDB_TYPE_TEXT, 'medium', null, null, null, null, null, null, 'feedbackformat');
        if (!field_exists($table, $field)) {
            /// Launch add field information
            $result = $result && add_field($table, $field);
        }
        /// Define field informationformat to be added to grade_grades_history
        $table = new XMLDBTable('grade_grades_history');
        $field = new XMLDBField('informationformat');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'information');
        if (!field_exists($table, $field)) {
            /// Launch add field informationformat
            $result = $result && add_field($table, $field);
        }
        $table = new XMLDBTable('grade_grades_text');
        if ($result and table_exists($table)) {
            //migrade existing data into grade_grades table - this is slow but works for all dbs,
            //it will be executed on development sites only
            $fields = array('feedback', 'information');
            foreach ($fields as $field) {
                $sql = "UPDATE {$CFG->prefix}grade_grades\n                           SET {$field} = (\n                                SELECT {$field}\n                                  FROM {$CFG->prefix}grade_grades_text ggt\n                                 WHERE ggt.gradeid = {$CFG->prefix}grade_grades.id)";
                $result = execute_sql($sql) && $result;
            }
            $fields = array('feedbackformat', 'informationformat');
            foreach ($fields as $field) {
                $sql = "UPDATE {$CFG->prefix}grade_grades\n                           SET {$field} = COALESCE((\n                                SELECT {$field}\n                                  FROM {$CFG->prefix}grade_grades_text ggt\n                                 WHERE ggt.gradeid = {$CFG->prefix}grade_grades.id), 0)";
                $result = execute_sql($sql) && $result;
            }
            if ($result) {
                $tables = array('grade_grades_text', 'grade_grades_text_history');
                foreach ($tables as $table) {
                    $table = new XMLDBTable($table);
                    if (table_exists($table)) {
                        drop_table($table);
                    }
                }
            }
        }
        upgrade_main_savepoint($result, 2007092002);
    }
    if ($result && $oldversion < 2007092803) {
        /// Remove obsoleted unit tests tables - they will be recreated automatically
        $tables = array('grade_categories', 'scale', 'grade_items', 'grade_calculations', 'grade_grades', 'grade_grades_raw', 'grade_grades_final', 'grade_grades_text', 'grade_outcomes', 'grade_outcomes_courses');
        foreach ($tables as $tablename) {
            $table = new XMLDBTable('unittest_' . $tablename);
            if (table_exists($table)) {
                drop_table($table);
            }
            $table = new XMLDBTable('unittest_' . $tablename . '_history');
            if (table_exists($table)) {
                drop_table($table);
            }
        }
        /// Define field display to be added to grade_items
        $table = new XMLDBTable('grade_items');
        $field = new XMLDBField('display');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null, null, '0', 'sortorder');
        /// Launch add field display
        if (!field_exists($table, $field)) {
            $result = $result && add_field($table, $field);
        } else {
            $result = $result && change_field_default($table, $field);
        }
        /// Define field display to be added to grade_items_history
        $table = new XMLDBTable('grade_items_history');
        $field = new XMLDBField('display');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null, null, '0', 'sortorder');
        /// Launch add field display
        if (!field_exists($table, $field)) {
            $result = $result && add_field($table, $field);
        }
        /// Define field decimals to be added to grade_items
        $table = new XMLDBTable('grade_items');
        $field = new XMLDBField('decimals');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, null, null, null, null, null, 'display');
        /// Launch add field decimals
        if (!field_exists($table, $field)) {
            $result = $result && add_field($table, $field);
        } else {
            $result = $result && change_field_default($table, $field);
            $result = $result && change_field_notnull($table, $field);
        }
        /// Define field decimals to be added to grade_items_history
        $table = new XMLDBTable('grade_items_history');
        $field = new XMLDBField('decimals');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, null, null, null, null, null, 'display');
        /// Launch add field decimals
        if (!field_exists($table, $field)) {
            $result = $result && add_field($table, $field);
        }
        /// fix incorrect -1 default for grade_item->display
        execute_sql("UPDATE {$CFG->prefix}grade_items SET display=0 WHERE display=-1");
        upgrade_main_savepoint($result, 2007092803);
    }
    /// migrade grade letters - we can not do this in normal grades upgrade becuase we need all course contexts
    if ($result && $oldversion < 2007092806) {
        require_once $CFG->libdir . '/db/upgradelib.php';
        $result = upgrade_18_letters();
        /// Define index contextidlowerboundary (not unique) to be added to grade_letters
        $table = new XMLDBTable('grade_letters');
        $index = new XMLDBIndex('contextid-lowerboundary');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('contextid', 'lowerboundary'));
        /// Launch add index contextidlowerboundary
        if (!index_exists($table, $index)) {
            $result = $result && add_index($table, $index);
        }
        upgrade_main_savepoint($result, 2007092806);
    }
    if ($result && $oldversion < 2007100100) {
        /// Define table cache_flags to be created
        $table = new XMLDBTable('cache_flags');
        /// Adding fields to table cache_flags
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('flagtype', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('name', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('timemodified', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('value', XMLDB_TYPE_TEXT, 'medium', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('expiry', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        /// Adding keys to table cache_flags
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        /*
         * Note: mysql can not create indexes on text fields larger than 333 chars! 
         */
        /// Adding indexes to table cache_flags
        $table->addIndexInfo('flagtype', XMLDB_INDEX_NOTUNIQUE, array('flagtype'));
        $table->addIndexInfo('name', XMLDB_INDEX_NOTUNIQUE, array('name'));
        /// Launch create table for cache_flags
        if (!table_exists($table)) {
            $result = $result && create_table($table);
        }
        upgrade_main_savepoint($result, 2007100100);
    }
    if ($oldversion < 2007100300) {
        /// MNET stuff for roaming theme
        /// Define field force_theme to be added to mnet_host
        $table = new XMLDBTable('mnet_host');
        $field = new XMLDBField('force_theme');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'last_log_id');
        /// Launch add field force_theme
        $result = $result && add_field($table, $field);
        /// Define field theme to be added to mnet_host
        $table = new XMLDBTable('mnet_host');
        $field = new XMLDBField('theme');
        $field->setAttributes(XMLDB_TYPE_CHAR, '100', null, null, null, null, null, null, 'force_theme');
        /// Launch add field theme
        $result = $result && add_field($table, $field);
        upgrade_main_savepoint($result, 2007100300);
    }
    if ($result && $oldversion < 2007100301) {
        /// Define table cache_flags to be created
        $table = new XMLDBTable('cache_flags');
        $index = new XMLDBIndex('typename');
        if (index_exists($table, $index)) {
            $result = $result && drop_index($table, $index);
        }
        $table = new XMLDBTable('cache_flags');
        $index = new XMLDBIndex('flagtype');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('flagtype'));
        if (!index_exists($table, $index)) {
            $result = $result && add_index($table, $index);
        }
        $table = new XMLDBTable('cache_flags');
        $index = new XMLDBIndex('name');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('name'));
        if (!index_exists($table, $index)) {
            $result = $result && add_index($table, $index);
        }
        upgrade_main_savepoint($result, 2007100301);
    }
    if ($result && $oldversion < 2007100303) {
        /// Changing nullability of field summary on table course to null
        $table = new XMLDBTable('course');
        $field = new XMLDBField('summary');
        $field->setAttributes(XMLDB_TYPE_TEXT, 'small', null, null, null, null, null, null, 'idnumber');
        /// Launch change of nullability for field summary
        $result = $result && change_field_notnull($table, $field);
        upgrade_main_savepoint($result, 2007100303);
    }
    if ($result && $oldversion < 2007100500) {
        /// for dev sites - it is ok to do this repeatedly
        /// Changing nullability of field path on table context to null
        $table = new XMLDBTable('context');
        $field = new XMLDBField('path');
        $field->setAttributes(XMLDB_TYPE_CHAR, '255', null, null, null, null, null, null, 'instanceid');
        /// Launch change of nullability for field path
        $result = $result && change_field_notnull($table, $field);
        upgrade_main_savepoint($result, 2007100500);
    }
    if ($result && $oldversion < 2007100700) {
        /// first drop existing tables - we do not need any data from there
        $table = new XMLDBTable('grade_import_values');
        if (table_exists($table)) {
            drop_table($table);
        }
        $table = new XMLDBTable('grade_import_newitem');
        if (table_exists($table)) {
            drop_table($table);
        }
        /// Define table grade_import_newitem to be created
        $table = new XMLDBTable('grade_import_newitem');
        /// Adding fields to table grade_import_newitem
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('itemname', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('importcode', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('importer', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        /// Adding keys to table grade_import_newitem
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addKeyInfo('importer', XMLDB_KEY_FOREIGN, array('importer'), 'user', array('id'));
        /// Launch create table for grade_import_newitem
        $result = $result && create_table($table);
        /// Define table grade_import_values to be created
        $table = new XMLDBTable('grade_import_values');
        /// Adding fields to table grade_import_values
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('itemid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('newgradeitem', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('userid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('finalgrade', XMLDB_TYPE_NUMBER, '10, 5', null, null, null, null, null, null);
        $table->addFieldInfo('feedback', XMLDB_TYPE_TEXT, 'medium', null, null, null, null, null, null);
        $table->addFieldInfo('importcode', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('importer', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        /// Adding keys to table grade_import_values
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addKeyInfo('itemid', XMLDB_KEY_FOREIGN, array('itemid'), 'grade_items', array('id'));
        $table->addKeyInfo('newgradeitem', XMLDB_KEY_FOREIGN, array('newgradeitem'), 'grade_import_newitem', array('id'));
        $table->addKeyInfo('importer', XMLDB_KEY_FOREIGN, array('importer'), 'user', array('id'));
        /// Launch create table for grade_import_values
        $result = $result && create_table($table);
        upgrade_main_savepoint($result, 2007100700);
    }
    /// dropping context_rel table - not used anymore
    if ($result && $oldversion < 2007100800) {
        /// Define table context_rel to be dropped
        $table = new XMLDBTable('context_rel');
        /// Launch drop table for context_rel
        if (table_exists($table)) {
            drop_table($table);
        }
        upgrade_main_savepoint($result, 2007100800);
    }
    /// Truncate the text_cahe table and add new index
    if ($result && $oldversion < 2007100802) {
        /// Truncate the cache_text table
        execute_sql("TRUNCATE TABLE {$CFG->prefix}cache_text", true);
        /// Define index timemodified (not unique) to be added to cache_text
        $table = new XMLDBTable('cache_text');
        $index = new XMLDBIndex('timemodified');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('timemodified'));
        /// Launch add index timemodified
        $result = $result && add_index($table, $index);
        upgrade_main_savepoint($result, 2007100802);
    }
    /// newtable for gradebook settings per course
    if ($result && $oldversion < 2007100803) {
        /// Define table grade_settings to be created
        $table = new XMLDBTable('grade_settings');
        /// Adding fields to table grade_settings
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('courseid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('name', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('value', XMLDB_TYPE_TEXT, 'small', null, null, null, null, null, null);
        /// Adding keys to table grade_settings
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addKeyInfo('courseid', XMLDB_KEY_FOREIGN, array('courseid'), 'course', array('id'));
        /// Adding indexes to table grade_settings
        $table->addIndexInfo('courseid-name', XMLDB_INDEX_UNIQUE, array('courseid', 'name'));
        /// Launch create table for grade_settings
        $result = $result && create_table($table);
        upgrade_main_savepoint($result, 2007100803);
    }
    /// cleanup in user_lastaccess
    if ($result && $oldversion < 2007100902) {
        $sql = "DELETE\n                  FROM {$CFG->prefix}user_lastaccess\n                 WHERE NOT EXISTS (SELECT 'x'\n                                    FROM {$CFG->prefix}course c\n                                   WHERE c.id = {$CFG->prefix}user_lastaccess.courseid)";
        execute_sql($sql);
        upgrade_main_savepoint($result, 2007100902);
    }
    /// drop old gradebook tables
    if ($result && $oldversion < 2007100903) {
        $tables = array('grade_category', 'grade_item', 'grade_letter', 'grade_preferences', 'grade_exceptions');
        foreach ($tables as $table) {
            $table = new XMLDBTable($table);
            if (table_exists($table)) {
                drop_table($table);
            }
        }
        upgrade_main_savepoint($result, 2007100903);
    }
    if ($result && $oldversion < 2007101500 && !file_exists($CFG->dataroot . '/user')) {
        // Get list of users by browsing moodledata/user
        $oldusersdir = $CFG->dataroot . '/users';
        $folders = get_directory_list($oldusersdir, '', false, true, false);
        foreach ($folders as $userid) {
            $olddir = $oldusersdir . '/' . $userid;
            $files = get_directory_list($olddir);
            if (empty($files)) {
                continue;
            }
            // Create new user directory
            if (!($newdir = make_user_directory($userid))) {
                $result = false;
                break;
            }
            // Move contents of old directory to new one
            if (file_exists($olddir) && file_exists($newdir)) {
                foreach ($files as $file) {
                    copy($olddir . '/' . $file, $newdir . '/' . $file);
                }
            } else {
                notify("Could not move the contents of {$olddir} into {$newdir}!");
                $result = false;
                break;
            }
        }
        // Leave a README in old users directory
        $readmefilename = $oldusersdir . '/README.txt';
        if ($handle = fopen($readmefilename, 'w+b')) {
            if (!fwrite($handle, get_string('olduserdirectory'))) {
                // Could not write to the readme file. No cause for huge concern
                notify("Could not write to the README.txt file in {$readmefilename}.");
            }
            fclose($handle);
        } else {
            // Could not create the readme file. No cause for huge concern
            notify("Could not create the README.txt file in {$readmefilename}.");
        }
    }
    if ($result && $oldversion < 2007101502) {
        /// try to remove duplicate entries
        $SQL = "SELECT userid, itemid, COUNT(*)\n               FROM {$CFG->prefix}grade_grades\n               GROUP BY userid, itemid\n               HAVING COUNT( * ) >1";
        // duplicates found
        if ($rs = get_recordset_sql($SQL)) {
            if ($rs && $rs->RecordCount() > 0) {
                while ($dup = rs_fetch_next_record($rs)) {
                    if ($thisdups = get_records_sql("SELECT id FROM {$CFG->prefix}grade_grades \n                                                    WHERE itemid = {$dup->itemid} AND userid = {$dup->userid}\n                                                    ORDER BY timemodified DESC")) {
                        $processed = 0;
                        // keep the first one
                        foreach ($thisdups as $thisdup) {
                            if ($processed) {
                                // remove the duplicates
                                delete_records('grade_grades', 'id', $thisdup->id);
                            }
                            $processed++;
                        }
                    }
                }
                rs_close($rs);
            }
        }
        /// Define key userid-itemid (unique) to be added to grade_grades
        $table = new XMLDBTable('grade_grades');
        $key = new XMLDBKey('userid-itemid');
        $key->setAttributes(XMLDB_KEY_UNIQUE, array('userid', 'itemid'));
        /// Launch add key userid-itemid
        $result = $result && add_key($table, $key);
        /// Main savepoint reached
        upgrade_main_savepoint($result, 2007101502);
    }
    if ($result && $oldversion < 2007101505) {
        /// Changing precision of field dst_time on table timezone to (6)
        $table = new XMLDBTable('timezone');
        $field = new XMLDBField('dst_time');
        $field->setAttributes(XMLDB_TYPE_CHAR, '6', null, XMLDB_NOTNULL, null, null, null, '00:00', 'dst_skipweeks');
        /// Launch change of precision for field dst_time
        $result = $result && change_field_precision($table, $field);
        /// Changing precision of field std_time on table timezone to (6)
        $table = new XMLDBTable('timezone');
        $field = new XMLDBField('std_time');
        $field->setAttributes(XMLDB_TYPE_CHAR, '6', null, XMLDB_NOTNULL, null, null, null, '00:00', 'std_skipweeks');
        /// Launch change of precision for field std_time
        $result = $result && change_field_precision($table, $field);
        /// Main savepoint reached
        upgrade_main_savepoint($result, 2007101505);
    }
    if ($result && $oldversion < 2007101506) {
        /// CONTEXT_PERSONAL was never implemented - removing
        $sql = "DELETE\n                  FROM {$CFG->prefix}context\n                 WHERE contextlevel=20";
        execute_sql($sql);
        /// Main savepoint reached
        upgrade_main_savepoint($result, 2007101506);
    }
    return $result;
}
Esempio n. 26
0
function xmldb_core_upgrade($oldversion = 0)
{
    global $SESSION;
    raise_time_limit(120);
    raise_memory_limit('256M');
    $status = true;
    if ($oldversion < 2009022700) {
        // Get rid of all blocks with position 0 caused by 'about me' block on profile views
        if (count_records('block_instance', 'order', 0) && !count_records_select('block_instance', '"order" < 0')) {
            if (is_mysql()) {
                $ids = get_column_sql('
                    SELECT i.id FROM {block_instance} i
                    INNER JOIN (SELECT view, "column" FROM {block_instance} WHERE "order" = 0) z
                        ON (z.view = i.view AND z.column = i.column)');
                execute_sql('UPDATE {block_instance} SET "order" =  -1 * "order" WHERE id IN (' . join(',', $ids) . ')');
            } else {
                execute_sql('UPDATE {block_instance} SET "order" =  -1 * "order" WHERE id IN (
                    SELECT i.id FROM {block_instance} i
                    INNER JOIN (SELECT view, "column" FROM {block_instance} WHERE "order" = 0) z
                        ON (z.view = i.view AND z.column = i.column))');
            }
            execute_sql('UPDATE {block_instance} SET "order" = 1 WHERE "order" = 0');
            execute_sql('UPDATE {block_instance} SET "order" = -1 * ("order" - 1) WHERE "order" < 0');
        }
    }
    if ($oldversion < 2009031000) {
        reload_html_filters();
    }
    if ($oldversion < 2009031300) {
        $table = new XMLDBTable('institution');
        $expiry = new XMLDBField('expiry');
        $expiry->setAttributes(XMLDB_TYPE_DATETIME);
        add_field($table, $expiry);
        $expirymailsent = new XMLDBField('expirymailsent');
        $expirymailsent->setAttributes(XMLDB_TYPE_INTEGER, 1, null, XMLDB_NOTNULL, null, null, null, 0);
        add_field($table, $expirymailsent);
        $suspended = new XMLDBField('suspended');
        $suspended->setAttributes(XMLDB_TYPE_INTEGER, 1, null, XMLDB_NOTNULL, null, null, null, 0);
        add_field($table, $suspended);
        // Insert a cron job to check for soon expiring and expired institutions
        if (!record_exists('cron', 'callfunction', 'auth_handle_institution_expiries')) {
            $cron = new StdClass();
            $cron->callfunction = 'auth_handle_institution_expiries';
            $cron->minute = '5';
            $cron->hour = '9';
            $cron->day = '*';
            $cron->month = '*';
            $cron->dayofweek = '*';
            insert_record('cron', $cron);
        }
    }
    if ($oldversion < 2009031800) {
        // Files can only attach blogpost artefacts, but we would like to be able to attach them
        // to other stuff.  Rename the existing attachment table artefact_blog_blogpost_file to
        // artefact_file_attachment so we don't end up with many tables doing the same thing.
        execute_sql("ALTER TABLE {artefact_blog_blogpost_file} RENAME TO {artefact_attachment}");
        if (is_postgres()) {
            // Ensure all of the indexes and constraints are renamed
            execute_sql("\n            ALTER TABLE {artefact_attachment} RENAME blogpost TO artefact;\n            ALTER TABLE {artefact_attachment} RENAME file TO attachment;\n\n            ALTER INDEX {arteblogblogfile_blofil_pk} RENAME TO {arteatta_artatt_pk};\n            ALTER INDEX {arteblogblogfile_blo_ix} RENAME TO {arteatta_art_ix};\n            ALTER INDEX {arteblogblogfile_fil_ix} RENAME TO {arteatta_att_ix};\n\n            ALTER TABLE {artefact_attachment} DROP CONSTRAINT {arteblogblogfile_blo_fk};\n            ALTER TABLE {artefact_attachment} ADD CONSTRAINT {arteatta_art_fk} FOREIGN KEY (artefact) REFERENCES {artefact}(id);\n\n            ALTER TABLE {artefact_attachment} DROP CONSTRAINT {arteblogblogfile_fil_fk};\n            ALTER TABLE {artefact_attachment} ADD CONSTRAINT {arteatta_att_fk} FOREIGN KEY (attachment) REFERENCES {artefact}(id);\n            ");
        } else {
            if (is_mysql()) {
                execute_sql("ALTER TABLE {artefact_attachment} DROP FOREIGN KEY {arteblogblogfile_blo_fk}");
                execute_sql("ALTER TABLE {artefact_attachment} DROP INDEX {arteblogblogfile_blo_ix}");
                execute_sql("ALTER TABLE {artefact_attachment} CHANGE blogpost artefact BIGINT(10) DEFAULT NULL");
                execute_sql("ALTER TABLE {artefact_attachment} ADD CONSTRAINT {arteatta_art_fk} FOREIGN KEY {arteatta_art_ix} (artefact) REFERENCES {artefact}(id)");
                execute_sql("ALTER TABLE {artefact_attachment} DROP FOREIGN KEY {arteblogblogfile_fil_fk}");
                execute_sql("ALTER TABLE {artefact_attachment} DROP INDEX {arteblogblogfile_fil_ix}");
                execute_sql("ALTER TABLE {artefact_attachment} CHANGE file attachment BIGINT(10) DEFAULT NULL");
                execute_sql("ALTER TABLE {artefact_attachment} ADD CONSTRAINT {arteatta_att_fk} FOREIGN KEY {arteatta_att_ix} (attachment) REFERENCES {artefact}(id)");
            }
        }
        // Drop the _pending table. From now on files uploaded as attachments will become artefacts
        // straight away.  Hopefully changes to the upload/file browser form will make it clear to
        // the user that these attachments sit in his/her files area as soon as they are uploaded.
        $table = new XMLDBTable('artefact_blog_blogpost_file_pending');
        drop_table($table);
    }
    if ($oldversion < 2009040900) {
        // The view access page has been putting the string 'null' in as a group role in IE.
        set_field('view_access_group', 'role', null, 'role', 'null');
    }
    if ($oldversion < 2009040901) {
        $table = new XMLDBTable('import_installed');
        $table->addFieldInfo('name', XMLDB_TYPE_CHAR, 255, XMLDB_UNSIGNED, XMLDB_NOTNULL);
        $table->addFieldInfo('version', XMLDB_TYPE_INTEGER, 10, XMLDB_UNSIGNED, XMLDB_NOTNULL);
        $table->addFieldInfo('release', XMLDB_TYPE_TEXT, 'small', XMLDB_UNSIGNED, XMLDB_NOTNULL);
        $table->addFieldInfo('active', XMLDB_TYPE_INTEGER, 1, XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, 1);
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('name'));
        create_table($table);
        $table = new XMLDBTable('import_cron');
        $table->addFieldInfo('plugin', XMLDB_TYPE_CHAR, 255, XMLDB_UNSIGNED, XMLDB_NOTNULL);
        $table->addFieldInfo('callfunction', XMLDB_TYPE_CHAR, 255, XMLDB_UNSIGNED, XMLDB_NOTNULL);
        $table->addFieldInfo('minute', XMLDB_TYPE_CHAR, 25, XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '*');
        $table->addFieldInfo('hour', XMLDB_TYPE_CHAR, 25, XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '*');
        $table->addFieldInfo('day', XMLDB_TYPE_CHAR, 25, XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '*');
        $table->addFieldInfo('dayofweek', XMLDB_TYPE_CHAR, 25, XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '*');
        $table->addFieldInfo('month', XMLDB_TYPE_CHAR, 25, XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '*');
        $table->addFieldInfo('nextrun', XMLDB_TYPE_DATETIME, null, null);
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('plugin', 'callfunction'));
        $table->addKeyInfo('pluginfk', XMLDB_KEY_FOREIGN, array('plugin'), 'import_installed', array('name'));
        create_table($table);
        $table = new XMLDBTable('import_config');
        $table->addFieldInfo('plugin', XMLDB_TYPE_CHAR, 100, XMLDB_UNSIGNED, XMLDB_NOTNULL);
        $table->addFieldInfo('field', XMLDB_TYPE_CHAR, 100, XMLDB_UNSIGNED, XMLDB_NOTNULL);
        $table->addFieldInfo('value', XMLDB_TYPE_TEXT, 'small', XMLDB_UNSIGNED, XMLDB_NOTNULL);
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('plugin', 'field'));
        $table->addKeyInfo('pluginfk', XMLDB_KEY_FOREIGN, array('plugin'), 'import_installed', array('name'));
        create_table($table);
        $table = new XMLDBTable('import_event_subscription');
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, 10, XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('plugin', XMLDB_TYPE_CHAR, 255, XMLDB_UNSIGNED, XMLDB_NOTNULL);
        $table->addFieldInfo('event', XMLDB_TYPE_CHAR, 50, XMLDB_UNSIGNED, XMLDB_NOTNULL);
        $table->addFieldInfo('callfunction', XMLDB_TYPE_CHAR, 255, XMLDB_UNSIGNED, XMLDB_NOTNULL);
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addKeyInfo('pluginfk', XMLDB_KEY_FOREIGN, array('plugin'), 'import_installed', array('name'));
        $table->addKeyInfo('eventfk', XMLDB_KEY_FOREIGN, array('event'), 'event_type', array('name'));
        $table->addKeyInfo('subscruk', XMLDB_KEY_UNIQUE, array('plugin', 'event', 'callfunction'));
        create_table($table);
        $table = new XMLDBTable('export_installed');
        $table->addFieldInfo('name', XMLDB_TYPE_CHAR, 255, XMLDB_UNSIGNED, XMLDB_NOTNULL);
        $table->addFieldInfo('version', XMLDB_TYPE_INTEGER, 10, XMLDB_UNSIGNED, XMLDB_NOTNULL);
        $table->addFieldInfo('release', XMLDB_TYPE_TEXT, 'small', XMLDB_UNSIGNED, XMLDB_NOTNULL);
        $table->addFieldInfo('active', XMLDB_TYPE_INTEGER, 1, XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, 1);
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('name'));
        create_table($table);
        $table = new XMLDBTable('export_cron');
        $table->addFieldInfo('plugin', XMLDB_TYPE_CHAR, 255, XMLDB_UNSIGNED, XMLDB_NOTNULL);
        $table->addFieldInfo('callfunction', XMLDB_TYPE_CHAR, 255, XMLDB_UNSIGNED, XMLDB_NOTNULL);
        $table->addFieldInfo('minute', XMLDB_TYPE_CHAR, 25, XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '*');
        $table->addFieldInfo('hour', XMLDB_TYPE_CHAR, 25, XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '*');
        $table->addFieldInfo('day', XMLDB_TYPE_CHAR, 25, XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '*');
        $table->addFieldInfo('dayofweek', XMLDB_TYPE_CHAR, 25, XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '*');
        $table->addFieldInfo('month', XMLDB_TYPE_CHAR, 25, XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '*');
        $table->addFieldInfo('nextrun', XMLDB_TYPE_DATETIME, null, null);
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('plugin', 'callfunction'));
        $table->addKeyInfo('pluginfk', XMLDB_KEY_FOREIGN, array('plugin'), 'export_installed', array('name'));
        create_table($table);
        $table = new XMLDBTable('export_config');
        $table->addFieldInfo('plugin', XMLDB_TYPE_CHAR, 100, XMLDB_UNSIGNED, XMLDB_NOTNULL);
        $table->addFieldInfo('field', XMLDB_TYPE_CHAR, 100, XMLDB_UNSIGNED, XMLDB_NOTNULL);
        $table->addFieldInfo('value', XMLDB_TYPE_TEXT, 'small', XMLDB_UNSIGNED, XMLDB_NOTNULL);
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('plugin', 'field'));
        $table->addKeyInfo('pluginfk', XMLDB_KEY_FOREIGN, array('plugin'), 'export_installed', array('name'));
        create_table($table);
        $table = new XMLDBTable('export_event_subscription');
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, 10, XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('plugin', XMLDB_TYPE_CHAR, 255, XMLDB_UNSIGNED, XMLDB_NOTNULL);
        $table->addFieldInfo('event', XMLDB_TYPE_CHAR, 50, XMLDB_UNSIGNED, XMLDB_NOTNULL);
        $table->addFieldInfo('callfunction', XMLDB_TYPE_CHAR, 255, XMLDB_UNSIGNED, XMLDB_NOTNULL);
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addKeyInfo('pluginfk', XMLDB_KEY_FOREIGN, array('plugin'), 'export_installed', array('name'));
        $table->addKeyInfo('eventfk', XMLDB_KEY_FOREIGN, array('event'), 'event_type', array('name'));
        $table->addKeyInfo('subscruk', XMLDB_KEY_UNIQUE, array('plugin', 'event', 'callfunction'));
        create_table($table);
    }
    if ($oldversion < 2009050700) {
        if ($data = check_upgrades('export.html')) {
            upgrade_plugin($data);
        }
        if ($data = check_upgrades('export.leap')) {
            upgrade_plugin($data);
        }
        if ($data = check_upgrades('import.leap')) {
            upgrade_plugin($data);
        }
    }
    if ($oldversion < 2009051200) {
        // Rename submittedto column to submittedgroup
        if (is_postgres()) {
            execute_sql("ALTER TABLE {view} RENAME submittedto TO submittedgroup");
        } else {
            if (is_mysql()) {
                execute_sql("ALTER TABLE {view} DROP FOREIGN KEY {view_sub_fk}");
                execute_sql("ALTER TABLE {view} DROP INDEX {view_sub_ix}");
                execute_sql("ALTER TABLE {view} CHANGE submittedto submittedgroup BIGINT(10) DEFAULT NULL");
                execute_sql("ALTER TABLE {view} ADD CONSTRAINT {view_sub_fk} FOREIGN KEY {view_sub_ix} (submittedgroup) REFERENCES {group}(id)");
            }
        }
        // Add submittedhost column for views submitted to remote moodle hosts
        $table = new XMLDBTable('view');
        $field = new XMLDBField('submittedhost');
        $field->setAttributes(XMLDB_TYPE_CHAR, 255, XMLDB_UNSIGNED, null);
        add_field($table, $field);
        // Do this manually because xmldb tries to create a key with the same name (view_sub_vk) as an existing one, and fails.
        if (is_postgres()) {
            execute_sql("ALTER TABLE {view} ADD CONSTRAINT {view_subh_fk} FOREIGN KEY (submittedhost) REFERENCES {host}(wwwroot)");
            execute_sql("CREATE INDEX {view_subh_ix} ON {view} (submittedhost)");
        } else {
            if (is_mysql()) {
                execute_sql("ALTER TABLE {view} ADD CONSTRAINT {view_subh_fk} FOREIGN KEY {view_subh_ix} (submittedhost) REFERENCES {host}(wwwroot)");
            }
        }
    }
    if ($oldversion < 2009051201) {
        // Invisible view access keys for roaming moodle teachers
        $table = new XMLDBTable('view_access_token');
        $field = new XMLDBField('visible');
        $field->setAttributes(XMLDB_TYPE_INTEGER, 1, null, XMLDB_NOTNULL, null, null, null, 1);
        add_field($table, $field);
    }
    if ($oldversion < 2009052700) {
        // Install a cron job to clean out old exports
        $cron = new StdClass();
        $cron->callfunction = 'export_cleanup_old_exports';
        $cron->minute = '0';
        $cron->hour = '3,13';
        $cron->day = '*';
        $cron->month = '*';
        $cron->dayofweek = '*';
        insert_record('cron', $cron);
    }
    if ($oldversion < 2009070600) {
        // This was forgotten as part of the 1.0 -> 1.1 upgrade
        if ($data = check_upgrades('blocktype.file/html')) {
            upgrade_plugin($data);
        }
    }
    if ($oldversion < 2009070700) {
        foreach (array('addfriend', 'removefriend', 'addfriendrequest', 'removefriendrequest') as $eventtype) {
            $event = (object) array('name' => $eventtype);
            ensure_record_exists('event_type', $event, $event);
        }
    }
    if ($oldversion < 2009070900) {
        if (is_mysql()) {
            execute_sql("ALTER TABLE {usr} DROP FOREIGN KEY {usr_las_fk}");
            execute_sql("ALTER TABLE {usr} DROP INDEX {usr_las_ix}");
        }
        $table = new XMLDBTable('usr');
        $field = new XMLDBField('lastauthinstance');
        drop_field($table, $field);
    }
    if ($oldversion < 2009080600) {
        $table = new XMLDBTable('view');
        $index = new XMLDBIndex('view_own_type_uix');
        $index->setAttributes(XMLDB_INDEX_UNIQUE, array('owner'));
        if (!index_exists($table, $index)) {
            // Delete duplicate profile views if there are any, then add an index
            // that will prevent it happening again - but only on postgres, as it's
            // the only db that supports partial indexes
            if ($viewdata = get_records_sql_array("\n                SELECT owner, id\n                FROM {view}\n                WHERE owner IN (\n                    SELECT owner\n                    FROM {view}\n                    WHERE type = 'profile'\n                    GROUP BY owner\n                    HAVING COUNT(*) > 1\n                )\n                AND type = 'profile'\n                ORDER BY owner, id", array())) {
                require_once 'view.php';
                $seen = array();
                foreach ($viewdata as $record) {
                    $seen[$record->owner][] = $record->id;
                }
                foreach ($seen as $owner => $views) {
                    // Remove the first one, which is their real profile view
                    array_shift($views);
                    foreach ($views as $viewid) {
                        delete_records('artefact_feedback', 'view', $viewid);
                        delete_records('view_feedback', 'view', $viewid);
                        delete_records('view_access', 'view', $viewid);
                        delete_records('view_access_group', 'view', $viewid);
                        delete_records('view_access_usr', 'view', $viewid);
                        delete_records('view_access_token', 'view', $viewid);
                        delete_records('view_autocreate_grouptype', 'view', $viewid);
                        delete_records('view_tag', 'view', $viewid);
                        delete_records('usr_watchlist_view', 'view', $viewid);
                        if ($blockinstanceids = get_column('block_instance', 'id', 'view', $viewid)) {
                            foreach ($blockinstanceids as $id) {
                                if (table_exists(new XMLDBTable('blocktype_wall_post'))) {
                                    delete_records('blocktype_wall_post', 'instance', $id);
                                }
                                delete_records('view_artefact', 'block', $id);
                                delete_records('block_instance', 'id', $id);
                            }
                        }
                        delete_records('view', 'id', $viewid);
                    }
                }
            }
            if (is_postgres()) {
                execute_sql("CREATE UNIQUE INDEX {view_own_type_uix} ON {view}(owner) WHERE type = 'profile'");
            }
        }
    }
    if ($oldversion < 2009080601) {
        execute_sql("DELETE FROM {group_member_invite} WHERE \"group\" NOT IN (SELECT id FROM {group} WHERE jointype = 'invite')");
        execute_sql("DELETE FROM {group_member_request} WHERE \"group\" NOT IN (SELECT id FROM {group} WHERE jointype = 'request')");
    }
    if ($oldversion < 2009081800) {
        $event = (object) array('name' => 'creategroup');
        ensure_record_exists('event_type', $event, $event);
    }
    if ($oldversion < 2009082400) {
        $table = new XMLDBTable('usr_registration');
        $field = new XMLDBField('username');
        drop_field($table, $field);
        $field = new XMLDBField('salt');
        drop_field($table, $field);
        $field = new XMLDBField('password');
        drop_field($table, $field);
    }
    if ($oldversion < 2009082600) {
        $captcha = get_config('captcha_on_contact_form');
        set_config('captchaoncontactform', (int) (is_null($captcha) || $captcha));
        $captcha = get_config('captcha_on_register_form');
        set_config('captchaonregisterform', (int) (is_null($captcha) || $captcha));
    }
    if ($oldversion < 2009090700) {
        set_config('showselfsearchsideblock', 1);
        set_config('showtagssideblock', 1);
        set_config('tagssideblockmaxtags', 20);
    }
    if ($oldversion < 2009092100) {
        if ($data = check_upgrades('import.file')) {
            upgrade_plugin($data);
        }
        if ($data = check_upgrades('blocktype.creativecommons')) {
            upgrade_plugin($data);
        }
    }
    if ($oldversion < 2009092900) {
        $event = (object) array('name' => 'deleteartefacts');
        ensure_record_exists('event_type', $event, $event);
    }
    if ($oldversion < 2009101600) {
        require_once get_config('docroot') . '/lib/stringparser_bbcode/lib.php';
        // Remove bbcode formatting from existing feedback
        if ($records = get_records_sql_array("SELECT * FROM {view_feedback} WHERE message LIKE '%[%'", array())) {
            foreach ($records as &$r) {
                if (function_exists('parse_bbcode')) {
                    $r->message = parse_bbcode($r->message);
                }
                update_record('view_feedback', $r);
            }
        }
        if ($records = get_records_sql_array("SELECT * FROM {artefact_feedback} WHERE message LIKE '%[%'", array())) {
            foreach ($records as &$r) {
                if (function_exists('parse_bbcode')) {
                    $r->message = parse_bbcode($r->message);
                }
                update_record('artefact_feedback', $r);
            }
        }
    }
    if ($oldversion < 2009102100) {
        // Now the view_layout table has to have records for all column widths
        $record = (object) array('columns' => 1, 'widths' => '100');
        insert_record('view_layout', $record);
        $record = (object) array('columns' => 5, 'widths' => '20,20,20,20,20');
        insert_record('view_layout', $record);
    }
    if ($oldversion < 2009102200) {
        if (!count_records_select('activity_type', 'name = ? AND plugintype IS NULL AND pluginname IS NULL', array('groupmessage'))) {
            insert_record('activity_type', (object) array('name' => 'groupmessage', 'admin' => 0, 'delay' => 0));
        }
    }
    if ($oldversion < 2009102900) {
        $table = new XMLDBTable('usr');
        $field = new XMLDBField('sessionid');
        drop_field($table, $field);
    }
    if ($oldversion < 2009110500) {
        set_config('creategroups', 'all');
    }
    if ($oldversion < 2009110900) {
        // Fix export cronjob so it runs 12 hours apart
        execute_sql("UPDATE {cron} SET hour = '3,15' WHERE callfunction = 'export_cleanup_old_exports'");
        // Cron job to clean old imports
        $cron = new StdClass();
        $cron->callfunction = 'import_cleanup_old_imports';
        $cron->minute = '0';
        $cron->hour = '4,16';
        $cron->day = '*';
        $cron->month = '*';
        $cron->dayofweek = '*';
        insert_record('cron', $cron);
    }
    if ($oldversion < 2009111200) {
        $table = new XMLDBTable('artefact_internal_profile_email');
        $field = new XMLDBField('mailssent');
        $field->setAttributes(XMLDB_TYPE_INTEGER, 2, null, XMLDB_NOTNULL, null, null, null, 0);
        add_field($table, $field);
    }
    if ($oldversion < 2009111201) {
        $table = new XMLDBTable('artefact_internal_profile_email');
        $field = new XMLDBField('mailsbounced');
        $field->setAttributes(XMLDB_TYPE_INTEGER, 2, null, XMLDB_NOTNULL, null, null, null, 0);
        add_field($table, $field);
    }
    if ($oldversion < 2009120100) {
        // Fix for bug in 1.1 => 1.2 upgrade which may have inserted
        // a second groupmessage activity_type record
        $records = get_records_select_array('activity_type', 'name = ? AND plugintype IS NULL AND pluginname IS NULL', array('groupmessage'), 'id');
        if ($records && count($records) > 1) {
            for ($i = 1; $i < count($records); $i++) {
                delete_records('activity_queue', 'type', $records[$i]->id);
                delete_records('notification_internal_activity', 'type', $records[$i]->id);
                delete_records('notification_emaildigest_queue', 'type', $records[$i]->id);
                delete_records('usr_activity_preference', 'activity', $records[$i]->id);
                delete_records('activity_type', 'id', $records[$i]->id);
            }
        }
    }
    if ($oldversion < 2009120900) {
        $table = new XMLDBTable('view');
        $field = new XMLDBField('theme');
        $field->setAttributes(XMLDB_TYPE_CHAR, 255, XMLDB_UNSIGNED, null);
        add_field($table, $field);
    }
    if ($oldversion < 2010011300) {
        // Clean up the mess left behind by failing to delete blogposts in a transaction
        try {
            include_once get_config('docroot') . 'artefact/lib.php';
            if (function_exists('rebuild_artefact_parent_cache_dirty')) {
                rebuild_artefact_parent_cache_dirty();
            }
        } catch (Exception $e) {
            log_debug('Upgrade 2010011300: rebuild_artefact_parent_cache_dirty failed.');
        }
        execute_sql("\n            INSERT INTO {artefact_blog_blogpost} (blogpost)\n            SELECT id FROM {artefact} WHERE artefacttype = 'blogpost' AND id NOT IN (\n                SELECT blogpost FROM {artefact_blog_blogpost}\n            )");
    }
    if ($oldversion < 2010012701) {
        set_config('userscanchooseviewthemes', 1);
    }
    if ($oldversion < 2010021500) {
        if ($data = check_upgrades('blocktype.recentforumposts')) {
            upgrade_plugin($data);
        }
    }
    if ($oldversion < 2010031000) {
        // For existing sites, preserve current user search behaviour:
        // Users are only searchable by their display names.
        set_config('userscanhiderealnames', 1);
        execute_sql("\n            INSERT INTO {usr_account_preference} (usr, field, value)\n            SELECT u.id, 'hiderealname', 1\n            FROM {usr} u LEFT JOIN {usr_account_preference} p ON (u.id = p.usr AND p.field = 'hiderealname')\n            WHERE NOT u.preferredname IS NULL AND u.preferredname != '' AND p.field IS NULL\n        ");
    }
    if ($oldversion < 2010040700) {
        // Set antispam defaults
        set_config('formsecret', get_random_key());
        if (!function_exists('checkdnsrr')) {
            require_once get_config('docroot') . 'lib/antispam.php';
        }
        if (checkdnsrr('test.uribl.com.black.uribl.com', 'A')) {
            set_config('antispam', 'advanced');
        } else {
            set_config('antispam', 'simple');
        }
        set_config('spamhaus', 0);
        set_config('surbl', 0);
    }
    if ($oldversion < 2010040800) {
        $table = new XMLDBTable('view');
        $field = new XMLDBField('submittedtime');
        $field->setAttributes(XMLDB_TYPE_DATETIME, null, null);
        add_field($table, $field);
    }
    if ($oldversion < 2010041200) {
        delete_records('config', 'field', 'captchaoncontactform');
        delete_records('config', 'field', 'captchaonregisterform');
    }
    if ($oldversion < 2010041201) {
        $sql = "\n            SELECT u.id\n            FROM {usr} u\n            LEFT JOIN {artefact} a\n                ON (a.owner = u.id AND a.artefacttype = 'blog')\n            WHERE u.id > 0\n            GROUP BY u.id\n            HAVING COUNT(a.id) != 1";
        $manyblogusers = get_records_sql_array($sql, array());
        if ($manyblogusers) {
            foreach ($manyblogusers as $u) {
                $where = (object) array('usr' => $u->id, 'field' => 'multipleblogs');
                $data = (object) array('usr' => $u->id, 'field' => 'multipleblogs', 'value' => 1);
                ensure_record_exists('usr_account_preference', $where, $data);
            }
        }
    }
    if ($oldversion < 2010041600 && table_exists(new XMLDBTable('view_feedback'))) {
        // Add author, authorname to artefact table
        $table = new XMLDBTable('artefact');
        $field = new XMLDBField('author');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10');
        add_field($table, $field);
        $key = new XMLDBKey('authorfk');
        $key->setAttributes(XMLDB_KEY_FOREIGN, array('author'), 'usr', array('id'));
        add_key($table, $key);
        table_column('artefact', null, 'authorname', 'text', null, null, null, '');
        if (is_postgres()) {
            execute_sql("ALTER TABLE {artefact} ALTER COLUMN authorname DROP DEFAULT");
            set_field('artefact', 'authorname', null);
            execute_sql('UPDATE {artefact} SET authorname = g.name FROM {group} g WHERE "group" = g.id');
            execute_sql("UPDATE {artefact} SET authorname = CASE WHEN institution = 'mahara' THEN ? ELSE i.displayname END FROM {institution} i WHERE institution = i.name", array(get_config('sitename')));
        } else {
            execute_sql("UPDATE {artefact} a, {group} g SET a.authorname = g.name WHERE a.group = g.id");
            execute_sql("UPDATE {artefact} a, {institution} i SET a.authorname = CASE WHEN a.institution = 'mahara' THEN ? ELSE i.displayname END WHERE a.institution = i.name", array(get_config('sitename')));
        }
        execute_sql('UPDATE {artefact} SET author = owner WHERE owner IS NOT NULL');
        execute_sql('ALTER TABLE {artefact} ADD CHECK (
            (author IS NOT NULL AND authorname IS NULL    ) OR
            (author IS NULL     AND authorname IS NOT NULL)
        )');
        // Move feedback activity type to artefact plugin
        execute_sql("\n            UPDATE {activity_type}\n            SET plugintype = 'artefact', pluginname = 'comment'\n            WHERE name = 'feedback'\n        ");
        // Install the comment artefact
        if ($data = check_upgrades('artefact.comment')) {
            upgrade_plugin($data);
        }
        // Flag all views & artefacts to enable/disable comments
        table_column('artefact', null, 'allowcomments', 'integer', 1);
        table_column('view', null, 'allowcomments', 'integer', 1, null, 1);
        // Initially allow comments on blogposts, images, files
        set_field_select('artefact', 'allowcomments', 1, 'artefacttype IN (?,?,?)', array('blogpost', 'image', 'file'));
        // Convert old feedback to comment artefacts
        if ($viewfeedback = get_records_sql_array('
            SELECT f.*, v.id AS viewid, v.owner, v.group, v.institution
            FROM {view_feedback} f JOIN {view} v ON f.view = v.id', array())) {
            foreach ($viewfeedback as &$f) {
                if ($f->author > 0) {
                    $f->authorname = null;
                } else {
                    $f->author = null;
                    if (empty($f->authorname)) {
                        $f->authorname = '?';
                    }
                }
                $artefact = (object) array('artefacttype' => 'comment', 'owner' => $f->owner, 'group' => $f->group, 'institution' => $f->institution, 'author' => $f->author, 'authorname' => $f->authorname, 'title' => get_string('Comment', 'artefact.comment'), 'description' => $f->message, 'ctime' => $f->ctime, 'atime' => $f->ctime, 'mtime' => $f->ctime);
                $aid = insert_record('artefact', $artefact, 'id', true);
                $comment = (object) array('artefact' => $aid, 'private' => 1 - $f->public, 'onview' => $f->viewid);
                insert_record('artefact_comment_comment', $comment);
                if (!empty($f->attachment)) {
                    insert_record('artefact_attachment', (object) array('artefact' => $aid, 'attachment' => $f->attachment));
                }
            }
        }
        // We are throwing away the view information from artefact_feedback.
        // From now on all artefact comments appear together and are not
        // tied to a particular view.
        if ($artefactfeedback = get_records_sql_array('
            SELECT f.*, a.id AS artefactid, a.owner, a.group, a.institution
            FROM {artefact_feedback} f JOIN {artefact} a ON f.artefact = a.id', array())) {
            foreach ($artefactfeedback as &$f) {
                if ($f->author > 0) {
                    $f->authorname = null;
                } else {
                    $f->author = null;
                    if (empty($f->authorname)) {
                        $f->authorname = '?';
                    }
                }
                $artefact = (object) array('artefacttype' => 'comment', 'owner' => $f->owner, 'group' => $f->group, 'institution' => $f->institution, 'author' => $f->author, 'authorname' => $f->authorname, 'title' => get_string('Comment', 'artefact.comment'), 'description' => $f->message, 'ctime' => $f->ctime, 'atime' => $f->ctime, 'mtime' => $f->ctime);
                $aid = insert_record('artefact', $artefact, 'id', true);
                $comment = (object) array('artefact' => $aid, 'private' => 1 - $f->public, 'onartefact' => $f->artefactid);
                insert_record('artefact_comment_comment', $comment);
            }
        }
        // Drop feedback tables
        $table = new XMLDBTable('view_feedback');
        drop_table($table);
        $table = new XMLDBTable('artefact_feedback');
        drop_table($table);
        // Add site setting for anonymous comments
        set_config('anonymouscomments', 1);
    }
    if ($oldversion < 2010041900 && !table_exists(new XMLDBTable('site_data'))) {
        // Upgrades for admin stats pages
        // Table for collection of historical stats
        $table = new XMLDBTable('site_data');
        $table->addFieldInfo('ctime', XMLDB_TYPE_DATETIME, null, XMLDB_NOTNULL);
        $table->addFieldInfo('type', XMLDB_TYPE_CHAR, 255, null, XMLDB_NOTNULL);
        $table->addFieldInfo('value', XMLDB_TYPE_TEXT, 'small', null);
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('ctime', 'type'));
        create_table($table);
        // Insert cron jobs to save site data
        $cron = new StdClass();
        $cron->callfunction = 'cron_site_data_weekly';
        $cron->minute = 55;
        $cron->hour = 23;
        $cron->day = '*';
        $cron->month = '*';
        $cron->dayofweek = 6;
        insert_record('cron', $cron);
        $cron = new StdClass();
        $cron->callfunction = 'cron_site_data_daily';
        $cron->minute = 51;
        $cron->hour = 23;
        $cron->day = '*';
        $cron->month = '*';
        $cron->dayofweek = '*';
        insert_record('cron', $cron);
        // Put best guess at installation time into config table.
        set_config('installation_time', get_field_sql("SELECT MIN(ctime) FROM {site_content}"));
        // Save the current time so we know when we started collecting stats
        set_config('stats_installation_time', db_format_timestamp(time()));
        // Add ctime to usr table for daily count of users created
        $table = new XMLDBTable('usr');
        $field = new XMLDBField('ctime');
        $field->setAttributes(XMLDB_TYPE_DATETIME, null, null);
        add_field($table, $field);
        // Add visits column to view table
        $table = new XMLDBTable('view');
        $field = new XMLDBField('visits');
        $field->setAttributes(XMLDB_TYPE_INTEGER, 10, XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, 0);
        add_field($table, $field);
        // Add table to store daily view visits
        $table = new XMLDBTable('view_visit');
        $table->addFieldInfo('ctime', XMLDB_TYPE_DATETIME, null, null, XMLDB_NOTNULL);
        $table->addFieldInfo('view', XMLDB_TYPE_INTEGER, 10, false, XMLDB_NOTNULL);
        $table->addKeyInfo('viewfk', XMLDB_KEY_FOREIGN, array('view'), 'view', array('id'));
        $table->addIndexInfo('ctimeix', XMLDB_INDEX_NOTUNIQUE, array('ctime'));
        create_table($table);
        // Insert a cron job to check for new versions of Mahara
        $cron = new StdClass();
        $cron->callfunction = 'cron_check_for_updates';
        $cron->minute = rand(0, 59);
        $cron->hour = rand(0, 23);
        $cron->day = '*';
        $cron->month = '*';
        $cron->dayofweek = '*';
        insert_record('cron', $cron);
    }
    if ($oldversion < 2010042600) {
        // @todo: Move to notification/internal
        $table = new XMLDBTable('notification_internal_activity');
        $field = new XMLDBField('parent');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10');
        add_field($table, $field);
        $key = new XMLDBKey('parentfk');
        $key->setAttributes(XMLDB_KEY_FOREIGN, array('parent'), 'notification_internal_activity', array('id'));
        add_key($table, $key);
        $field = new XMLDBField('from');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10');
        add_field($table, $field);
        $key = new XMLDBKey('fromfk');
        $key->setAttributes(XMLDB_KEY_FOREIGN, array('from'), 'usr', array('id'));
        add_key($table, $key);
        // Set from column for old user messages
        $usermessages = get_records_array('notification_internal_activity', 'type', get_field('activity_type', 'id', 'name', 'usermessage'));
        if ($usermessages) {
            foreach ($usermessages as &$m) {
                if (preg_match('/sendmessage\\.php\\?id=(\\d+)/', $m->url, $match)) {
                    set_field('notification_internal_activity', 'from', $match[1], 'id', $m->id);
                }
            }
        }
    }
    if ($oldversion < 2010042602 && !get_record('view_type', 'type', 'dashboard')) {
        insert_record('view_type', (object) array('type' => 'dashboard'));
        if ($data = check_upgrades('blocktype.inbox')) {
            upgrade_plugin($data);
        }
        if ($data = check_upgrades('blocktype.newviews')) {
            upgrade_plugin($data);
        }
        // Install system dashboard view
        require_once get_config('libroot') . 'view.php';
        $dbtime = db_format_timestamp(time());
        $viewdata = (object) array('type' => 'dashboard', 'owner' => 0, 'numcolumns' => 2, 'ownerformat' => FORMAT_NAME_PREFERREDNAME, 'title' => get_string('dashboardviewtitle', 'view'), 'template' => 1, 'ctime' => $dbtime, 'atime' => $dbtime, 'mtime' => $dbtime);
        $id = insert_record('view', $viewdata, 'id', true);
        $accessdata = (object) array('view' => $id, 'accesstype' => 'loggedin');
        insert_record('view_access', $accessdata);
        $blocktypes = array(array('blocktype' => 'newviews', 'title' => get_string('title', 'blocktype.newviews'), 'column' => 1, 'config' => array('limit' => 5)), array('blocktype' => 'myviews', 'title' => get_string('title', 'blocktype.myviews'), 'column' => 1, 'config' => null), array('blocktype' => 'inbox', 'title' => get_string('inboxblocktitle'), 'column' => 2, 'config' => array('feedback' => true, 'groupmessage' => true, 'institutionmessage' => true, 'maharamessage' => true, 'usermessage' => true, 'viewaccess' => true, 'watchlist' => true, 'maxitems' => '5')), array('blocktype' => 'inbox', 'title' => get_string('topicsimfollowing'), 'column' => 2, 'config' => array('newpost' => true, 'maxitems' => '5')));
        $installed = get_column_sql('SELECT name FROM {blocktype_installed}');
        $weights = array(1 => 0, 2 => 0);
        foreach ($blocktypes as $blocktype) {
            if (in_array($blocktype['blocktype'], $installed)) {
                $weights[$blocktype['column']]++;
                insert_record('block_instance', (object) array('blocktype' => $blocktype['blocktype'], 'title' => $blocktype['title'], 'view' => $id, 'column' => $blocktype['column'], 'order' => $weights[$blocktype['column']], 'configdata' => serialize($blocktype['config'])));
            }
        }
    }
    if ($oldversion < 2010042603) {
        execute_sql('ALTER TABLE {usr} ADD COLUMN showhomeinfo SMALLINT NOT NULL DEFAULT 1');
        set_config('homepageinfo', 1);
    }
    if ($oldversion < 2010042604) {
        // @todo: Move to notification/internal
        $table = new XMLDBTable('notification_internal_activity');
        $field = new XMLDBField('urltext');
        $field->setAttributes(XMLDB_TYPE_TEXT);
        add_field($table, $field);
    }
    if ($oldversion < 2010051000) {
        set_field('activity_type', 'delay', 1, 'name', 'groupmessage');
    }
    if ($oldversion < 2010052000) {
        $showusers = get_config('showonlineuserssideblock');
        set_config('showonlineuserssideblock', (int) (is_null($showusers) || $showusers));
    }
    if ($oldversion < 2010060300) {
        // Add table to associate users with php session ids
        $table = new XMLDBTable('usr_session');
        $table->addFieldInfo('usr', XMLDB_TYPE_INTEGER, 10, false, XMLDB_NOTNULL);
        $table->addFieldInfo('session', XMLDB_TYPE_CHAR, 255, null, XMLDB_NOTNULL);
        $table->addFieldInfo('ctime', XMLDB_TYPE_DATETIME, null, null, XMLDB_NOTNULL);
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('session'));
        $table->addIndexInfo('usrix', XMLDB_INDEX_NOTUNIQUE, array('usr'));
        create_table($table);
    }
    if ($oldversion < 2010061100) {
        set_config('registerterms', 1);
    }
    if ($oldversion < 2010061800) {
        insert_record('view_type', (object) array('type' => 'grouphomepage'));
        if ($data = check_upgrades('blocktype.groupmembers')) {
            upgrade_plugin($data);
        }
        if ($data = check_upgrades('blocktype.groupinfo')) {
            upgrade_plugin($data);
        }
        if ($data = check_upgrades('blocktype.groupviews')) {
            upgrade_plugin($data);
        }
        $dbtime = db_format_timestamp(time());
        // create a system template for group homepage views
        require_once get_config('libroot') . 'view.php';
        $viewdata = (object) array('type' => 'grouphomepage', 'owner' => 0, 'numcolumns' => 1, 'template' => 1, 'title' => get_string('grouphomepage', 'view'), 'ctime' => $dbtime, 'atime' => $dbtime, 'mtime' => $dbtime);
        $id = insert_record('view', $viewdata, 'id', true);
        $accessdata = (object) array('view' => $id, 'accesstype' => 'loggedin');
        insert_record('view_access', $accessdata);
        $blocktypes = array(array('blocktype' => 'groupinfo', 'title' => '', 'column' => 1, 'config' => null), array('blocktype' => 'recentforumposts', 'title' => get_string('latestforumposts', 'interaction.forum'), 'column' => 1, 'config' => null), array('blocktype' => 'groupviews', 'title' => get_string('Views', 'view'), 'column' => 1, 'config' => null), array('blocktype' => 'groupmembers', 'title' => get_string('Members', 'group'), 'column' => 1, 'config' => null));
        $installed = get_column_sql('SELECT name FROM {blocktype_installed}');
        foreach ($blocktypes as $k => $blocktype) {
            if (!in_array($blocktype['blocktype'], $installed)) {
                unset($blocktypes[$k]);
            }
        }
        $weights = array(1 => 0);
        foreach ($blocktypes as $blocktype) {
            $weights[$blocktype['column']]++;
            insert_record('block_instance', (object) array('blocktype' => $blocktype['blocktype'], 'title' => $blocktype['title'], 'view' => $id, 'column' => $blocktype['column'], 'order' => $weights[$blocktype['column']], 'configdata' => serialize($blocktype['config'])));
        }
        // add a default group homepage view for all groups in the system
        unset($viewdata->owner);
        $viewdata->template = 0;
        if (!($groups = get_records_array('group', '', '', '', 'id,public'))) {
            $groups = array();
        }
        foreach ($groups as $group) {
            $viewdata->group = $group->id;
            $id = insert_record('view', $viewdata, 'id', true);
            insert_record('view_access', (object) array('view' => $id, 'accesstype' => $group->public ? 'public' : 'loggedin'));
            insert_record('view_access_group', (object) array('view' => $id, 'group' => $group->id));
            $weights = array(1 => 0);
            foreach ($blocktypes as $blocktype) {
                $weights[$blocktype['column']]++;
                insert_record('block_instance', (object) array('blocktype' => $blocktype['blocktype'], 'title' => $blocktype['title'], 'view' => $id, 'column' => $blocktype['column'], 'order' => $weights[$blocktype['column']], 'configdata' => serialize($blocktype['config'])));
            }
        }
    }
    if ($oldversion < 2010062502) {
        //new feature feedback control on views
        $table = new XMLDBTable('view_access');
        $field = new XMLDBField('allowcomments');
        $field->setAttributes(XMLDB_TYPE_INTEGER, 1, null, XMLDB_NOTNULL, null, null, null, 0);
        add_field($table, $field);
        $field = new XMLDBField('approvecomments');
        $field->setAttributes(XMLDB_TYPE_INTEGER, 1, null, XMLDB_NOTNULL, null, null, null, 1);
        add_field($table, $field);
        // Add comment approval to view/artefact (default 0)
        $field = new XMLDBField('approvecomments');
        $field->setAttributes(XMLDB_TYPE_INTEGER, 1, null, XMLDB_NOTNULL, null, null, null, 0);
        $table = new XMLDBTable('view');
        add_field($table, $field);
        $table = new XMLDBTable('artefact');
        add_field($table, $field);
        // view_access_(group|usr|token) tables are getting wide with duplicated columns,
        // so just create all the necessary columns in view_access and move stuff there
        $table = new XMLDBTable('view_access');
        $field = new XMLDBField('accesstype');
        $field->setAttributes(XMLDB_TYPE_CHAR, 16, null, null);
        change_field_notnull($table, $field);
        $field = new XMLDBField('group');
        $field->setAttributes(XMLDB_TYPE_INTEGER, 10, null, null);
        add_field($table, $field);
        $field = new XMLDBField('role');
        $field->setAttributes(XMLDB_TYPE_CHAR, 255, null, null);
        add_field($table, $field);
        $field = new XMLDBField('usr');
        $field->setAttributes(XMLDB_TYPE_INTEGER, 10, null, null);
        add_field($table, $field);
        $field = new XMLDBField('token');
        $field->setAttributes(XMLDB_TYPE_CHAR, 100, null, null);
        add_field($table, $field);
        $field = new XMLDBField('visible');
        $field->setAttributes(XMLDB_TYPE_INTEGER, 1, null, XMLDB_NOTNULL, null, null, null, 1);
        add_field($table, $field);
        // Copy data to view_access
        execute_sql('
            INSERT INTO {view_access} (view, accesstype, "group", role, startdate, stopdate)
            SELECT view, NULL, "group", role, startdate, stopdate FROM {view_access_group}');
        execute_sql('
            INSERT INTO {view_access} (view, accesstype, usr, startdate, stopdate)
            SELECT view, NULL, usr, startdate, stopdate FROM {view_access_usr}');
        execute_sql('
            INSERT INTO {view_access} (view, accesstype, token, visible, startdate, stopdate)
            SELECT view, NULL, token, visible, startdate, stopdate FROM {view_access_token}');
        // Add foreign keys
        $key = new XMLDBKey('groupfk');
        $key->setAttributes(XMLDB_KEY_FOREIGN, array('group'), 'group', array('id'));
        add_key($table, $key);
        $key = new XMLDBKey('usrfk');
        $key->setAttributes(XMLDB_KEY_FOREIGN, array('usr'), 'usr', array('id'));
        add_key($table, $key);
        $index = new XMLDBIndex('tokenuk');
        $index->setAttributes(XMLDB_INDEX_UNIQUE, array('token'));
        add_index($table, $index);
        // Exactly one of accesstype, group, usr, token must be not null
        execute_sql('ALTER TABLE {view_access} ADD CHECK (
            (accesstype IS NOT NULL AND "group" IS NULL     AND usr IS NULL     AND token IS NULL) OR
            (accesstype IS NULL     AND "group" IS NOT NULL AND usr IS NULL     AND token IS NULL) OR
            (accesstype IS NULL     AND "group" IS NULL     AND usr IS NOT NULL AND token IS NULL) OR
            (accesstype IS NULL     AND "group" IS NULL     AND usr IS NULL     AND token IS NOT NULL)
        )');
        // Drop old tables
        $table = new XMLDBTable('view_access_group');
        drop_table($table);
        $table = new XMLDBTable('view_access_usr');
        drop_table($table);
        $table = new XMLDBTable('view_access_token');
        drop_table($table);
        // Insert explicit tutor access records for submitted views
        if (!($submittedviews = get_records_sql_array('
            SELECT v.id, v.submittedgroup, g.grouptype
            FROM {view} v JOIN {group} g ON (v.submittedgroup = g.id AND g.deleted = 0)', array()))) {
            $submittedviews = array();
        }
        $roles = array();
        foreach ($submittedviews as $v) {
            if (!isset($roles[$v->grouptype])) {
                $rs = get_column('grouptype_roles', 'role', 'grouptype', $v->grouptype, 'see_submitted_views', 1);
                $roles[$v->grouptype] = empty($rs) ? array() : $rs;
            }
            foreach ($roles[$v->grouptype] as $role) {
                $accessrecord = (object) array('view' => $v->id, 'group' => $v->submittedgroup, 'role' => $role, 'visible' => 0, 'allowcomments' => 1, 'approvecomments' => 0);
                ensure_record_exists('view_access', $accessrecord, $accessrecord);
            }
        }
    }
    if ($oldversion < 2010070700) {
        $table = new XMLDBTable('group_category');
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL, XMLDB_SEQUENCE);
        $table->addFieldInfo('title', XMLDB_TYPE_CHAR, 255, null, XMLDB_NOTNULL);
        $table->addFieldInfo('displayorder', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL);
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        create_table($table);
        $table = new XMLDBTable('group');
        $field = new XMLDBField('category');
        $field->setAttributes(XMLDB_TYPE_INTEGER, 10);
        add_field($table, $field);
        $key = new XMLDBKey('categoryfk');
        $key->setAttributes(XMLDB_KEY_FOREIGN, array('category'), 'group_category', array('id'));
        add_key($table, $key);
    }
    if ($oldversion < 2010071300) {
        set_config('searchusernames', 1);
    }
    if ($oldversion < 2010071500) {
        reload_html_filters();
    }
    if ($oldversion < 2010071600) {
        if (is_postgres()) {
            // change_field_enum should do this
            execute_sql('ALTER TABLE {view_access} DROP CONSTRAINT {viewacce_acc_ck}');
        }
        $table = new XMLDBTable('view_access');
        $field = new XMLDBField('accesstype');
        $field->setAttributes(XMLDB_TYPE_CHAR, 16, null, null, null, XMLDB_ENUM, array('public', 'loggedin', 'friends', 'objectionable'));
        change_field_enum($table, $field);
    }
    if ($oldversion < 2010071900) {
        $table = new XMLDBTable('group');
        $field = new XMLDBField('viewnotify');
        $field->setAttributes(XMLDB_TYPE_INTEGER, 1, null, XMLDB_NOTNULL, null, null, null, 1);
        add_field($table, $field);
    }
    if ($oldversion < 2010081000) {
        // new table collection
        $table = new XMLDBTable('collection');
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('name', XMLDB_TYPE_CHAR, 255, XMLDB_UNSIGNED, XMLDB_NOTNULL);
        $table->addFieldInfo('owner', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL);
        $table->addFieldInfo('ctime', XMLDB_TYPE_DATETIME, null, null, XMLDB_NOTNULL);
        $table->addFieldInfo('mtime', XMLDB_TYPE_DATETIME, null, null, XMLDB_NOTNULL);
        $table->addFieldInfo('description', XMLDB_TYPE_TEXT, null);
        $table->addFieldInfo('navigation', XMLDB_TYPE_INTEGER, 1, null, XMLDB_NOTNULL, null, null, null, 1);
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addKeyInfo('usrfk', XMLDB_KEY_FOREIGN, array('owner'), 'usr', array('id'));
        create_table($table);
        // new table collection_view
        $table = new XMLDBTable('collection_view');
        $table->addFieldInfo('view', XMLDB_TYPE_INTEGER, 10, false, XMLDB_NOTNULL);
        $table->addFieldInfo('collection', XMLDB_TYPE_INTEGER, 10, false, XMLDB_NOTNULL);
        $table->addFieldInfo('displayorder', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL);
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('view'));
        $table->addKeyInfo('viewfk', XMLDB_KEY_FOREIGN, array('view'), 'view', array('id'));
        $table->addKeyInfo('collectionfk', XMLDB_KEY_FOREIGN, array('collection'), 'collection', array('id'));
        create_table($table);
        // Drop unique constraint on token column of view_access
        $table = new XMLDBTable('view_access');
        $index = new XMLDBIndex('tokenuk');
        $index->setAttributes(XMLDB_INDEX_UNIQUE, array('token'));
        drop_index($table, $index);
        $index = new XMLDBIndex('tokenix');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('token'));
        add_index($table, $index);
    }
    if ($oldversion < 2010081001) {
        if ($data = check_upgrades('artefact.plans')) {
            upgrade_plugin($data);
        }
        if ($data = check_upgrades('blocktype.plans/plans')) {
            upgrade_plugin($data);
        }
    }
    if ($oldversion < 2010081100) {
        if ($data = check_upgrades('blocktype.navigation')) {
            upgrade_plugin($data);
        }
    }
    if ($oldversion < 2010082000) {
        delete_records_select('config', "field IN ('usersrank', 'groupsrank', 'viewsrank')");
    }
    if ($oldversion < 2010091300) {
        // Cron job missing from installs post 2010041900
        if (!record_exists('cron', 'callfunction', 'cron_check_for_updates')) {
            $cron = new StdClass();
            $cron->callfunction = 'cron_check_for_updates';
            $cron->minute = rand(0, 59);
            $cron->hour = rand(0, 23);
            $cron->day = '*';
            $cron->month = '*';
            $cron->dayofweek = '*';
            insert_record('cron', $cron);
        }
    }
    if ($oldversion < 2010091500) {
        // Previous version of 2010040800 upgrade created the submittedtime
        // column not null (see bug #638550)
        $table = new XMLDBTable('view');
        $field = new XMLDBField('submittedtime');
        $field->setAttributes(XMLDB_TYPE_DATETIME, null, null);
        change_field_notnull($table, $field);
        // Our crappy db is full of redundant data (submittedtime depends on
        // submittedhost or submittedgroup) so it's easy to correct this.
        execute_sql("\n            UPDATE {view} SET submittedtime = NULL\n            WHERE submittedtime IS NOT NULL AND submittedgroup IS NULL AND submittedhost IS NULL");
    }
    if ($oldversion < 2010100702) {
        // Add general notification cleanup cron
        if (!record_exists('cron', 'callfunction', 'cron_clean_internal_activity_notifications')) {
            $cron = new StdClass();
            $cron->callfunction = 'cron_clean_internal_activity_notifications';
            $cron->minute = 45;
            $cron->hour = 22;
            $cron->day = '*';
            $cron->month = '*';
            $cron->dayofweek = '*';
            insert_record('cron', $cron);
        }
    }
    if ($oldversion < 2010110800) {
        // Encrypt all passwords with no set salt values
        $sql = "SELECT * FROM {usr}\n                WHERE salt IS NULL OR salt = ''";
        if ($passwords = get_records_sql_array($sql, array())) {
            foreach ($passwords as $p) {
                $p->salt = substr(md5(rand(1000000, 9999999)), 2, 8);
                $p->password = sha1($p->salt . $p->password);
                update_record('usr', $p);
            }
        }
    }
    if ($oldversion < 2010122200) {
        $table = new XMLDBTable('institution');
        $field = new XMLDBField('priority');
        $field->setAttributes(XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL, null, null, null, 1);
        add_field($table, $field);
        set_field('institution', 'priority', 0, 'name', 'mahara');
    }
    if ($oldversion < 2010122201) {
        $table = new XMLDBTable('view');
        $field = new XMLDBField('accessconf');
        $field->setAttributes(XMLDB_TYPE_CHAR, 40, XMLDB_UNSIGNED, null);
        add_field($table, $field);
    }
    if ($oldversion < 2010122700) {
        $table = new XMLDBTable('view_access');
        $index = new XMLDBIndex('accesstypeix');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('accesstype'));
        add_index($table, $index);
    }
    if ($oldversion < 2011012800) {
        reload_html_filters();
    }
    if ($oldversion < 2011032500) {
        // Uninstall solr plugin; it's moving to contrib until it's fixed up.
        delete_records('search_cron', 'plugin', 'solr');
        delete_records('search_event_subscription', 'plugin', 'solr');
        delete_records('search_config', 'plugin', 'solr');
        delete_records('search_installed', 'name', 'solr');
        $searchplugin = get_config('searchplugin');
        if ($searchplugin == 'solr') {
            set_config('searchplugin', 'internal');
        }
    }
    if ($oldversion < 2011041800) {
        // Remove titles from system dashboard, group homepage blocks, so new users/groups
        // get blocks with automatically generated, translatable default titles.
        $systemdashboard = get_field('view', 'id', 'owner', 0, 'type', 'dashboard');
        set_field_select('block_instance', 'title', '', "view = ? AND blocktype IN ('newviews','myviews','inbox')", array($systemdashboard));
        $systemgrouphomepage = get_field('view', 'id', 'owner', 0, 'type', 'grouphomepage');
        set_field_select('block_instance', 'title', '', "view = ? AND blocktype IN ('recentforumposts','groupviews','groupmembers')", array($systemgrouphomepage));
    }
    if ($oldversion < 2011042000) {
        // Create empty variables in database for email configuration
        set_config('smtphosts', '');
        set_config('smtpport', '');
        set_config('smtpuser', '');
        set_config('smtppass', '');
        set_config('smtpsecure', '');
        $SESSION->add_info_msg('Email settings now can be configured via Site settings, however they may be overriden by those set in the config file. If you have no specific reason to use config file email configuration, please consider moving them to Site settings area.');
    }
    if ($oldversion < 2011050300) {
        if (get_config('httpswwwroot')) {
            // Notify users about httpswwwroot removal if it is still set
            $SESSION->add_info_msg('HTTPS logins have been deprecated, you need to remove the httpswwwroot variable from config file and switch your wwwroot to https so that the whole site is served over HTTPS.<br>See <a href="https://bugs.launchpad.net/mahara/+bug/646713">https://bugs.launchpad.net/mahara/+bug/646713</a> for more details.', 0);
        }
    }
    if ($oldversion < 2011050600) {
        $table = new XMLDBTable('usr');
        $field = new XMLDBField('username');
        $field->setAttributes(XMLDB_TYPE_CHAR, 255, null, XMLDB_NOTNULL);
        // This drops the unique index on the username column in postgres.
        // See upgrade 2011051800.
        change_field_precision($table, $field);
    }
    if ($oldversion < 2011051700) {
        // Create new "external" category
        insert_record('blocktype_category', (object) array('name' => 'external'));
        // Migrate existing blocktypes to the new category
        set_field('blocktype_installed_category', 'category', 'external', 'category', 'feeds');
        set_field('blocktype_installed_category', 'category', 'external', 'blocktype', 'externalvideo');
        set_field('blocktype_installed_category', 'category', 'external', 'blocktype', 'googleapps');
        // Delete old "feeds" category
        delete_records('blocktype_category', 'name', 'feeds');
    }
    if ($oldversion < 2011051800) {
        // Restore index that may be missing due to upgrade 2011050600.
        $table = new XMLDBTable('usr');
        $index = new XMLDBIndex('usr_use_uix');
        $index->setAttributes(XMLDB_INDEX_UNIQUE, array('username'));
        if (!index_exists($table, $index)) {
            if (is_postgres()) {
                // For postgres, create the index on the lowercase username, the way it's
                // done in core_postinst().
                execute_sql('CREATE UNIQUE INDEX {usr_use_uix} ON {usr}(LOWER(username))');
            } else {
                $index = new XMLDBIndex('usernameuk');
                $index->setAttributes(XMLDB_INDEX_UNIQUE, array('username'));
                add_index($table, $index);
            }
        }
    }
    if ($oldversion < 2011052300) {
        if ($data = check_upgrades("blocktype.googleapps")) {
            upgrade_plugin($data);
        }
    }
    if ($oldversion < 2011061100) {
        // This block fixes an issue of upgrading from 1.4_STABLE to master
        // version number is date after 1.4_STABLE
        // 2011052400
        // add_field checks if field exists
        $table = new XMLDBTable('view_access');
        $field = new XMLDBField('ctime');
        $field->setAttributes(XMLDB_TYPE_DATETIME, null, null);
        add_field($table, $field);
        // 2011053100
        // add_field checks if field exists
        $table = new XMLDBTable('institution');
        $field = new XMLDBField('defaultquota');
        $field->setAttributes(XMLDB_TYPE_INTEGER, 10);
        add_field($table, $field);
        // 2011053101
        // add_field checks if field exists
        $table = new XMLDBTable('group');
        $field = new XMLDBField('quota');
        $field->setAttributes(XMLDB_TYPE_INTEGER, 10);
        add_field($table, $field);
        $field = new XMLDBField('quotaused');
        $field->setAttributes(XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL, null, null, null, 0);
        add_field($table, $field);
        // 2011060700
        // add_field checks if field exists
        $table = new XMLDBTable('view');
        $field = new XMLDBField('retainview');
        $field->setAttributes(XMLDB_TYPE_INTEGER, 1, null, XMLDB_NOTNULL, null, null, null, 0);
        add_field($table, $field);
        // 2011060701
        // site setting to limit online users count
        if (!get_config('onlineuserssideblockmaxusers')) {
            set_config('onlineuserssideblockmaxusers', 10);
        }
        // 2011060701
        // add_field checks if field exists
        // instiutional setting to limit online users type
        $table = new XMLDBTable('institution');
        $field = new XMLDBField('showonlineusers');
        $field->setAttributes(XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL, null, null, null, 2);
        add_field($table, $field);
    }
    if ($oldversion < 2011061300) {
        // Add more indexes to the usr table for user searches
        if (is_postgres()) {
            $table = new XMLDBTable('usr');
            $index = new XMLDBIndex('usr_fir_ix');
            $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('firstname', 'lastname', 'preferredname', 'studentid', 'email'));
            if (!index_exists($table, $index)) {
                execute_sql('CREATE INDEX {usr_fir_ix} ON {usr}(LOWER(firstname))');
                execute_sql('CREATE INDEX {usr_las_ix} ON {usr}(LOWER(lastname))');
                execute_sql('CREATE INDEX {usr_pre_ix} ON {usr}(LOWER(preferredname))');
                execute_sql('CREATE INDEX {usr_stu_ix} ON {usr}(LOWER(studentid))');
                execute_sql('CREATE INDEX {usr_ema_ix} ON {usr}(LOWER(email))');
            }
        }
    }
    if ($oldversion < 2011061400) {
        // Add institution to group table
        $table = new XMLDBTable('group');
        $field = new XMLDBField('institution');
        $field->setAttributes(XMLDB_TYPE_CHAR, 255, null, null);
        add_field($table, $field);
        $key = new XMLDBKey('institutionfk');
        $key->setAttributes(XMLDB_KEY_FOREIGN, array('institution'), 'institution', array('name'));
        add_key($table, $key);
        // Add shortname to group table
        $table = new XMLDBTable('group');
        $field = new XMLDBField('shortname');
        $field->setAttributes(XMLDB_TYPE_CHAR, 255, null, null);
        add_field($table, $field);
        $index = new XMLDBIndex('shortnameuk');
        $index->setAttributes(XMLDB_KEY_UNIQUE, array('institution', 'shortname'));
        add_index($table, $index);
    }
    if ($oldversion < 2011061500) {
        // Add favourites
        $table = new XMLDBTable('favorite');
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('owner', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL);
        $table->addFieldInfo('shortname', XMLDB_TYPE_CHAR, 255, null, XMLDB_NOTNULL);
        $table->addFieldInfo('institution', XMLDB_TYPE_CHAR, 255, null, null);
        $table->addFieldInfo('ctime', XMLDB_TYPE_DATETIME, null, XMLDB_NOTNULL);
        $table->addFieldInfo('mtime', XMLDB_TYPE_DATETIME, null, XMLDB_NOTNULL);
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addKeyInfo('ownerfk', XMLDB_KEY_FOREIGN, array('owner'), 'usr', array('id'));
        $table->addKeyInfo('institutionfk', XMLDB_KEY_FOREIGN, array('institution'), 'institution', array('name'));
        $table->addIndexInfo('ownershortuk', XMLDB_INDEX_UNIQUE, array('owner', 'shortname'));
        create_table($table);
        $table = new XMLDBTable('favorite_usr');
        $table->addFieldInfo('favorite', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL);
        $table->addFieldInfo('usr', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL);
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('favorite,usr'));
        $table->addKeyInfo('favoritefk', XMLDB_KEY_FOREIGN, array('favorite'), 'favorite', array('id'));
        $table->addKeyInfo('usrfk', XMLDB_KEY_FOREIGN, array('usr'), 'usr', array('id'));
        create_table($table);
    }
    if ($oldversion < 2011062100) {
        $table = new XMLDBTable('institution');
        $field = new XMLDBField('allowinstitutionpublicviews');
        $field->setAttributes(XMLDB_TYPE_INTEGER, 1, null, XMLDB_NOTNULL, null, null, null, 1);
        add_field($table, $field);
    }
    if ($oldversion < 2011062200) {
        $table = new XMLDBTable('usr_tag');
        $table->addFieldInfo('usr', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL);
        $table->addFieldInfo('tag', XMLDB_TYPE_CHAR, 128, null, XMLDB_NOTNULL);
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('usr', 'tag'));
        $table->addKeyInfo('usrfk', XMLDB_KEY_FOREIGN, array('usr'), 'usr', array('id'));
        create_table($table);
    }
    if ($oldversion < 2011062300) {
        // Install a cron job to generate the sitemap
        if (!record_exists('cron', 'callfunction', 'cron_sitemap_daily')) {
            $cron = new StdClass();
            $cron->callfunction = 'cron_sitemap_daily';
            $cron->minute = '0';
            $cron->hour = '1';
            $cron->day = '*';
            $cron->month = '*';
            $cron->dayofweek = '*';
            insert_record('cron', $cron);
        }
    }
    if ($oldversion < 2011062400) {
        // self-registration per institution confrimation setting
        $table = new XMLDBTable('institution');
        $field = new XMLDBField('registerconfirm');
        $field->setAttributes(XMLDB_TYPE_INTEGER, 1, null, XMLDB_NOTNULL, null, null, null, 1);
        add_field($table, $field);
        $table = new XMLDBTable('usr_registration');
        $field = new XMLDBField('pending');
        $field->setAttributes(XMLDB_TYPE_INTEGER, 1, null, XMLDB_NOTNULL, null, null, null, 0);
        add_field($table, $field);
        $table = new XMLDBTable('usr_registration');
        $field = new XMLDBField('reason');
        $field->setAttributes(XMLDB_TYPE_TEXT);
        add_field($table, $field);
    }
    if ($oldversion < 2011062700) {
        set_config('dropdownmenu', 0);
    }
    if ($oldversion < 2011070500) {
        // Add profileicon foreign key to artefact table, first clearing any bad profileicon
        // values out of usr.
        execute_sql("\n            UPDATE {usr} SET profileicon = NULL\n            WHERE NOT profileicon IN (SELECT id FROM {artefact} WHERE artefacttype = 'profileicon')");
        $table = new XMLDBTable('usr');
        $key = new XMLDBKey('profileiconfk');
        $key->setAttributes(XMLDB_KEY_FOREIGN, array('profileicon'), 'artefact', array('id'));
        add_key($table, $key);
    }
    if ($oldversion < 2011070501) {
        // Add logo to institution table
        $table = new XMLDBTable('institution');
        $field = new XMLDBField('logo');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10');
        add_field($table, $field);
        $key = new XMLDBKey('logofk');
        $key->setAttributes(XMLDB_KEY_FOREIGN, array('logo'), 'artefact', array('id'));
        add_key($table, $key);
    }
    if ($oldversion < 2011072200) {
        if (is_postgres()) {
            execute_sql("\n                UPDATE {group}\n                SET quota = CASE WHEN f.quotaused < 52428800 THEN 52428800 ELSE f.quotaused + 52428800 END,\n                    quotaused = f.quotaused\n                FROM (\n                    SELECT g.id AS id, COALESCE(gf.quotaused, 0) AS quotaused\n                    FROM {group} g\n                        LEFT OUTER JOIN (\n                            SELECT a.group, SUM(aff.size) AS quotaused\n                            FROM {artefact} a JOIN {artefact_file_files} aff ON a.id = aff.artefact\n                            WHERE NOT a.group IS NULL\n                            GROUP BY a.group\n                        ) gf ON gf.group = g.id\n                    WHERE g.quota IS NULL AND g.quotaused = 0 AND g.deleted = 0\n                ) f\n                WHERE {group}.id = f.id");
        } else {
            execute_sql("\n                UPDATE {group}, (\n                    SELECT g.id AS id, COALESCE(gf.quotaused, 0) AS quotaused\n                    FROM {group} g\n                        LEFT OUTER JOIN (\n                            SELECT a.group, SUM(aff.size) AS quotaused\n                            FROM {artefact} a JOIN {artefact_file_files} aff ON a.id = aff.artefact\n                            WHERE NOT a.group IS NULL\n                            GROUP BY a.group\n                        ) gf ON gf.group = g.id\n                    WHERE g.quota IS NULL AND g.quotaused = 0 AND g.deleted = 0\n                ) f\n                SET quota = CASE WHEN f.quotaused < 52428800 THEN 52428800 ELSE f.quotaused + 52428800 END,\n                    {group}.quotaused = f.quotaused\n                WHERE {group}.id = f.id");
        }
    }
    if ($oldversion < 2011072600) {
        // Add tables to store custom institution styles
        // Currently only institutions can use them, but merge this with skin tables later...
        $table = new XMLDBTable('style');
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL, XMLDB_SEQUENCE);
        $table->addFieldInfo('title', XMLDB_TYPE_CHAR, 255, null, XMLDB_NOTNULL);
        $table->addFieldInfo('css', XMLDB_TYPE_TEXT);
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        create_table($table);
        $table = new XMLDBTable('style_property');
        $table->addFieldInfo('style', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL);
        $table->addFieldInfo('field', XMLDB_TYPE_CHAR, 100, null, XMLDB_NOTNULL);
        $table->addFieldInfo('value', XMLDB_TYPE_TEXT, 'small', null, XMLDB_NOTNULL);
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('style', 'field'));
        $table->addKeyInfo('stylefk', XMLDB_KEY_FOREIGN, array('style'), 'style', array('id'));
        create_table($table);
        $table = new XMLDBTable('institution');
        $field = new XMLDBField('style');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10');
        add_field($table, $field);
        $key = new XMLDBKey('stylefk');
        $key->setAttributes(XMLDB_KEY_FOREIGN, array('style'), 'style', array('id'));
        add_key($table, $key);
    }
    if ($oldversion < 2011082200) {
        // Doing a direct insert of the new artefact type instead of running upgrade_plugin(), in order to support the
        // transition from old profile fields to the new socialprofile artefact in Mahara 1.10
        if (!record_exists('artefact_installed_type', 'name', 'html', 'plugin', 'internal')) {
            insert_record('artefact_installed_type', (object) array('name' => 'html', 'plugin' => 'internal'));
        }
        // Move the textbox blocktype into artefact/internal
        set_field('blocktype_installed', 'artefactplugin', 'internal', 'name', 'textbox');
        if ($data = check_upgrades("blocktype.internal/textbox")) {
            upgrade_plugin($data);
        }
    }
    if ($oldversion < 2011082300) {
        // Add institution to view_access table
        $table = new XMLDBTable('view_access');
        $field = new XMLDBField('institution');
        $field->setAttributes(XMLDB_TYPE_CHAR, 255, null, null);
        if (!field_exists($table, $field)) {
            add_field($table, $field);
            // Add foreign key
            $key = new XMLDBKey('institutionfk');
            $key->setAttributes(XMLDB_KEY_FOREIGN, array('institution'), 'institution', array('name'));
            add_key($table, $key);
            if (is_postgres()) {
                // Update constraint checks
                execute_sql('ALTER TABLE {view_access} DROP CONSTRAINT {view_access_check}');
                execute_sql('ALTER TABLE {view_access} ADD CHECK (
                    (accesstype IS NOT NULL AND "group" IS NULL     AND usr IS NULL     AND token IS NULL     AND institution IS NULL    ) OR
                    (accesstype IS NULL     AND "group" IS NOT NULL AND usr IS NULL     AND token IS NULL     AND institution IS NULL    ) OR
                    (accesstype IS NULL     AND "group" IS NULL     AND usr IS NOT NULL AND token IS NULL     AND institution IS NULL    ) OR
                    (accesstype IS NULL     AND "group" IS NULL     AND usr IS NULL     AND token IS NOT NULL AND institution IS NULL    ) OR
                    (accesstype IS NULL     AND "group" IS NULL     AND usr IS NULL     AND token IS NULL     AND institution IS NOT NULL))');
            } else {
                // MySQL doesn't support these types of constraints
            }
        }
    }
    if ($oldversion < 2011082400) {
        // Add cron entry for cache cleanup
        $cron = new StdClass();
        $cron->callfunction = 'file_cleanup_old_cached_files';
        $cron->minute = '0';
        $cron->hour = '1';
        $cron->day = '*';
        $cron->month = '*';
        $cron->dayofweek = '*';
        insert_record('cron', $cron);
    }
    if ($oldversion < 2011082401) {
        // Set config value for logged-in profile view access
        set_config('loggedinprofileviewaccess', 1);
    }
    if ($oldversion < 2011083000) {
        // Jointype changes
        $table = new XMLDBTable('group');
        $field = new XMLDBField('request');
        $field->setAttributes(XMLDB_TYPE_INTEGER, 1, null, XMLDB_NOTNULL, null, null, null, 0);
        add_field($table, $field);
        set_field('group', 'request', 1, 'jointype', 'request');
        // Turn all request & invite groups into the 'approve' type
        $field = new XMLDBField('jointype');
        $field->setAttributes(XMLDB_TYPE_CHAR, 20, null, XMLDB_NOTNULL, null, XMLDB_ENUM, array('open', 'controlled', 'request', 'invite', 'approve'), 'open');
        if (is_postgres()) {
            execute_sql('ALTER TABLE {group} DROP CONSTRAINT {grou_joi_ck}');
        }
        change_field_enum($table, $field);
        set_field('group', 'jointype', 'approve', 'jointype', 'request');
        set_field('group', 'jointype', 'approve', 'jointype', 'invite');
        $field->setAttributes(XMLDB_TYPE_CHAR, 20, null, XMLDB_NOTNULL, null, XMLDB_ENUM, array('open', 'controlled', 'approve'), 'open');
        if (is_postgres()) {
            execute_sql('ALTER TABLE {group} DROP CONSTRAINT {grou_joi_ck}');
        }
        change_field_enum($table, $field);
        // Move view submission from grouptype to group
        $field = new XMLDBField('submittableto');
        $field->setAttributes(XMLDB_TYPE_INTEGER, 1, null, XMLDB_NOTNULL, null, null, null, 0);
        add_field($table, $field);
        execute_sql("UPDATE {group} SET submittableto = 1 WHERE grouptype IN (SELECT name FROM {grouptype} WHERE submittableto = 1)");
        $table = new XMLDBTable('grouptype');
        $field = new XMLDBField('submittableto');
        drop_field($table, $field);
        // Any group can potentially take submissions, so make sure someone can assess them
        set_field('grouptype_roles', 'see_submitted_views', 1, 'role', 'admin');
        // Move group view editing permission from grouptype_roles to the group table
        $table = new XMLDBTable('group');
        $field = new XMLDBField('editroles');
        $field->setAttributes(XMLDB_TYPE_CHAR, 20, null, XMLDB_NOTNULL, null, XMLDB_ENUM, array('all', 'notmember', 'admin'), 'all');
        add_field($table, $field);
        execute_sql("\n            UPDATE {group} SET editroles = 'notmember' WHERE grouptype IN (\n                SELECT grouptype FROM {grouptype_roles} WHERE role = 'member' AND edit_views = 0\n            )");
        $table = new XMLDBTable('grouptype_roles');
        $field = new XMLDBField('edit_views');
        drop_field($table, $field);
    }
    if ($oldversion < 2011090900) {
        $table = new XMLDBTable('usr');
        $field = new XMLDBField('password');
        $field->setAttributes(XMLDB_TYPE_CHAR, 255, null, XMLDB_NOTNULL);
        change_field_type($table, $field, true, true);
    }
    if ($oldversion < 2011091200) {
        // Locked group views (only editable by group admins)
        $table = new XMLDBTable('view');
        $field = new XMLDBField('locked');
        $field->setAttributes(XMLDB_TYPE_INTEGER, 1, null, XMLDB_NOTNULL, null, null, null, 0);
        add_field($table, $field);
        set_field('view', 'locked', 1, 'type', 'grouphomepage');
        // Setting to hide groups from the "Find Groups" listing
        $table = new XMLDBTable('group');
        $field = new XMLDBField('hidden');
        $field->setAttributes(XMLDB_TYPE_INTEGER, 1, null, XMLDB_NOTNULL, null, null, null, 0);
        add_field($table, $field);
        // Setting to hide group members
        $field = new XMLDBField('hidemembers');
        $field->setAttributes(XMLDB_TYPE_INTEGER, 1, null, XMLDB_NOTNULL, null, null, null, 0);
        add_field($table, $field);
        // Setting to hide group members from members
        $field = new XMLDBField('hidemembersfrommembers');
        $field->setAttributes(XMLDB_TYPE_INTEGER, 1, null, XMLDB_NOTNULL, null, null, null, 0);
        add_field($table, $field);
        // Allow group members to invite friends
        $field = new XMLDBField('invitefriends');
        $field->setAttributes(XMLDB_TYPE_INTEGER, 1, null, XMLDB_NOTNULL, null, null, null, 0);
        add_field($table, $field);
        // Allow group members to recommend the group to friends
        $field = new XMLDBField('suggestfriends');
        $field->setAttributes(XMLDB_TYPE_INTEGER, 1, null, XMLDB_NOTNULL, null, null, null, 0);
        add_field($table, $field);
    }
    if ($oldversion < 2011091300) {
        $table = new XMLDBTable('blocktype_category');
        $field = new XMLDBField('sort');
        $field->setAttributes(XMLDB_TYPE_INTEGER, 2, XMLDB_UNSIGNED, null);
        add_field($table, $field);
        execute_sql("UPDATE {blocktype_category} SET sort = ? WHERE name = ?", array('0', 'fileimagevideo'));
        execute_sql("UPDATE {blocktype_category} SET sort = ? WHERE name = ?", array('1', 'blog'));
        execute_sql("UPDATE {blocktype_category} SET sort = ? WHERE name = ?", array('2', 'general'));
        execute_sql("UPDATE {blocktype_category} SET sort = ? WHERE name = ?", array('3', 'internal'));
        execute_sql("UPDATE {blocktype_category} SET sort = ? WHERE name = ?", array('4', 'resume'));
        execute_sql("UPDATE {blocktype_category} SET sort = ? WHERE name = ?", array('5', 'external'));
        $index = new XMLDBIndex('sortuk');
        $index->setAttributes(XMLDB_INDEX_UNIQUE, array('sort'));
        add_index($table, $index, false);
    }
    if ($oldversion < 2011092600) {
        // Move the taggedposts blocktype into artefact/blog/blocktype
        set_field('blocktype_installed', 'artefactplugin', 'blog', 'name', 'taggedposts');
    }
    if ($oldversion < 2011102700) {
        $table = new XMLDBTable('usr');
        $field = new XMLDBField('logintries');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '1', null, XMLDB_NOTNULL, null, null, null, 0);
        add_field($table, $field);
        // Every 5 minutes, reset everyone's login attempts to 0
        $cron = new StdClass();
        $cron->callfunction = 'user_login_tries_to_zero';
        $cron->minute = '*/5';
        $cron->hour = '*';
        $cron->day = '*';
        $cron->month = '*';
        $cron->dayofweek = '*';
        insert_record('cron', $cron);
    }
    if ($oldversion < 2011111500) {
        $table = new XMLDBTable('blocktype_installed_category');
        $key = new XMLDBKey('primary');
        $key->setAttributes(XMLDB_KEY_PRIMARY, array('blocktype'));
        add_key($table, $key);
    }
    if ($oldversion < 2011120200) {
        if ($data = check_upgrades('blocktype.blog/taggedposts')) {
            upgrade_plugin($data);
        }
        if ($data = check_upgrades('blocktype.watchlist')) {
            upgrade_plugin($data);
        }
    }
    if ($oldversion < 2012011300) {
        $table = new XMLDBTable('group_member');
        $field = new XMLDBField('method');
        $field->setAttributes(XMLDB_TYPE_CHAR, 100, null, XMLDB_NOTNULL, null, null, null, 'internal');
        add_field($table, $field);
    }
    if ($oldversion < 2012021000) {
        $table = new XMLDBTable('usr');
        $field = new XMLDBField('unread');
        $field->setAttributes(XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL, null, null, null, 0);
        add_field($table, $field);
    }
    if ($oldversion < 2012021700) {
        $sql = "\n            FROM {usr} u JOIN {auth_instance} ai ON (u.authinstance = ai.id)\n            WHERE u.deleted = 0 AND ai.authname = 'internal' AND u.password != '*' AND u.salt != '*'";
        $pwcount = count_records_sql("SELECT COUNT(*) " . $sql);
        $sql = "\n            SELECT u.id, u.password, u.salt" . $sql . " AND u.id > ?\n            ORDER BY u.id";
        $done = 0;
        $lastid = 0;
        $limit = 2000;
        while ($users = get_records_sql_array($sql, array($lastid), 0, $limit)) {
            foreach ($users as $user) {
                // Wrap the old hashed password inside a SHA512 hash ($6$ is the identifier for SHA512)
                $user->password = crypt($user->password, '$6$' . substr(md5(get_config('passwordsaltmain') . $user->salt), 0, 16));
                // Drop the salt from the password as it may contain secrets that are not stored in the db
                // for example, the passwordsaltmain value
                $user->password = substr($user->password, 0, 3) . substr($user->password, 3 + 16);
                set_field('usr', 'password', $user->password, 'id', $user->id);
                remove_user_sessions($user->id);
                $lastid = $user->id;
            }
            $done += count($users);
            log_debug("Upgrading stored passwords: {$done}/{$pwcount}");
            set_time_limit(30);
        }
    }
    if ($oldversion < 2012022100) {
        reload_html_filters();
    }
    if ($oldversion < 2012042600 && !table_exists(new XMLDBTable('iframe_source'))) {
        // Tables for configurable safe iframe sources
        $table = new XMLDBTable('iframe_source_icon');
        $table->addFieldInfo('name', XMLDB_TYPE_CHAR, 255, null, XMLDB_NOTNULL);
        $table->addFieldInfo('domain', XMLDB_TYPE_CHAR, 255, null, XMLDB_NOTNULL);
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('name'));
        create_table($table);
        $iframedomains = array('YouTube' => 'www.youtube.com', 'Vimeo' => 'vimeo.com', 'SlideShare' => 'www.slideshare.net', 'Glogster' => 'www.glogster.com', 'WikiEducator' => 'wikieducator.org', 'Voki' => 'voki.com');
        foreach ($iframedomains as $name => $domain) {
            insert_record('iframe_source_icon', (object) array('name' => $name, 'domain' => $domain));
        }
        $table = new XMLDBTable('iframe_source');
        $table->addFieldInfo('prefix', XMLDB_TYPE_CHAR, 255, null, XMLDB_NOTNULL);
        $table->addFieldInfo('name', XMLDB_TYPE_CHAR, 255, null, XMLDB_NOTNULL);
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('prefix'));
        $table->addKeyInfo('namefk', XMLDB_KEY_FOREIGN, array('name'), 'iframe_source_icon', array('name'));
        create_table($table);
        $iframesources = array('www.youtube.com/embed/' => 'YouTube', 'player.vimeo.com/video/' => 'Vimeo', 'www.slideshare.net/slideshow/embed_code/' => 'SlideShare', 'www.glogster.com/glog/' => 'Glogster', 'www.glogster.com/glog.php' => 'Glogster', 'edu.glogster.com/glog/' => 'Glogster', 'edu.glogster.com/glog.php' => 'Glogster', 'wikieducator.org/index.php' => 'WikiEducator', 'voki.com/php/' => 'Voki');
        foreach ($iframesources as $prefix => $name) {
            insert_record('iframe_source', (object) array('prefix' => $prefix, 'name' => $name));
        }
        $iframeregexp = '%^https?://(' . str_replace('.', '\\.', implode('|', array_keys($iframesources))) . ')%';
        set_config('iframeregexp', $iframeregexp);
    }
    if ($oldversion < 2012042800) {
        $table = new XMLDBTable('usr_registration');
        $field = new XMLDBField('extra');
        $field->setAttributes(XMLDB_TYPE_TEXT);
        add_field($table, $field);
    }
    if ($oldversion < 2012051500) {
        $table = new XMLDBTable('usr_registration');
        $field = new XMLDBField('authtype');
        $field->setAttributes(XMLDB_TYPE_CHAR, 255, null, XMLDB_NOTNULL, null, null, null, 'internal');
        add_field($table, $field);
        $key = new XMLDBKey('authtype');
        $key->setAttributes(XMLDB_KEY_FOREIGN, array('authtype'), 'auth_installed', array('name'));
        add_key($table, $key);
    }
    if ($oldversion < 2012053100) {
        // Clean url fields for usr, group, and view tables.
        $table = new XMLDBTable('usr');
        $field = new XMLDBField('urlid');
        $field->setAttributes(XMLDB_TYPE_CHAR, 30, null, null);
        add_field($table, $field);
        $index = new XMLDBIndex('urliduk');
        $index->setAttributes(XMLDB_INDEX_UNIQUE, array('urlid'));
        add_index($table, $index);
        $table = new XMLDBTable('group');
        $field = new XMLDBField('urlid');
        $field->setAttributes(XMLDB_TYPE_CHAR, 30, null, null);
        add_field($table, $field);
        $index = new XMLDBIndex('urliduk');
        $index->setAttributes(XMLDB_INDEX_UNIQUE, array('urlid'));
        add_index($table, $index);
        $table = new XMLDBTable('view');
        $field = new XMLDBField('urlid');
        $field->setAttributes(XMLDB_TYPE_CHAR, 100, null, null);
        add_field($table, $field);
        $index = new XMLDBIndex('urliduk');
        $index->setAttributes(XMLDB_INDEX_UNIQUE, array('urlid', 'owner', 'group', 'institution'));
        add_index($table, $index);
    }
    if ($oldversion < 2012060100) {
        // Collection submission
        $table = new XMLDBTable('collection');
        $field = new XMLDBField('submittedgroup');
        $field->setAttributes(XMLDB_TYPE_INTEGER, 10);
        add_field($table, $field);
        $field = new XMLDBField('submittedhost');
        $field->setAttributes(XMLDB_TYPE_CHAR, 255);
        add_field($table, $field);
        $field = new XMLDBField('submittedtime');
        $field->setAttributes(XMLDB_TYPE_DATETIME);
        add_field($table, $field);
        $key = new XMLDBKey('submittedgroupfk');
        $key->setAttributes(XMLDB_KEY_FOREIGN, array('submittedgroup'), 'group', array('id'));
        add_key($table, $key);
        $key = new XMLDBKey('submittedhostfk');
        $key->setAttributes(XMLDB_KEY_FOREIGN, array('submittedhost'), 'host', array('wwwroot'));
        add_key($table, $key);
    }
    if ($oldversion < 2012062900) {
        // Add site registration data tables
        $table = new XMLDBTable('site_registration');
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL, XMLDB_SEQUENCE);
        $table->addFieldInfo('time', XMLDB_TYPE_DATETIME, null, null, XMLDB_NOTNULL);
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        create_table($table);
        $table = new XMLDBTable('site_registration_data');
        $table->addFieldInfo('registration_id', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL);
        $table->addFieldInfo('field', XMLDB_TYPE_CHAR, 100, XMLDB_UNSIGNED, XMLDB_NOTNULL);
        $table->addFieldInfo('value', XMLDB_TYPE_TEXT, null, null, XMLDB_NOTNULL);
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('registration_id', 'field'));
        $table->addKeyInfo('regdatafk', XMLDB_KEY_FOREIGN, array('registration_id'), 'site_registration', array('id'));
        create_table($table);
    }
    if ($oldversion < 2012062901) {
        // Add institution registration data tables
        $table = new XMLDBTable('institution_registration');
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL, XMLDB_SEQUENCE);
        $table->addFieldInfo('time', XMLDB_TYPE_DATETIME, null, null, XMLDB_NOTNULL);
        $table->addFieldInfo('institution', XMLDB_TYPE_CHAR, 255, null, null);
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addKeyInfo('institutionfk', XMLDB_KEY_FOREIGN, array('institution'), 'institution', array('name'));
        create_table($table);
        $table = new XMLDBTable('institution_registration_data');
        $table->addFieldInfo('registration_id', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL);
        $table->addFieldInfo('field', XMLDB_TYPE_CHAR, 100, XMLDB_UNSIGNED, XMLDB_NOTNULL);
        $table->addFieldInfo('value', XMLDB_TYPE_TEXT, null, null, XMLDB_NOTNULL);
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('registration_id', 'field'));
        $table->addKeyInfo('regdatafk', XMLDB_KEY_FOREIGN, array('registration_id'), 'institution_registration', array('id'));
        create_table($table);
        // Install a cron job to collection institution registration data
        $cron = new StdClass();
        $cron->callfunction = 'cron_institution_registration_data';
        $cron->minute = rand(0, 59);
        $cron->hour = rand(0, 23);
        $cron->day = '*';
        $cron->month = '*';
        $cron->dayofweek = rand(0, 6);
        insert_record('cron', $cron);
    }
    if ($oldversion < 2012062902) {
        // Add institution stats table
        $table = new XMLDBTable('institution_data');
        $table->addFieldInfo('ctime', XMLDB_TYPE_DATETIME, null, XMLDB_NOTNULL);
        $table->addFieldInfo('institution', XMLDB_TYPE_CHAR, 255, null, null);
        $table->addFieldInfo('type', XMLDB_TYPE_CHAR, 255, null, XMLDB_NOTNULL);
        $table->addFieldInfo('value', XMLDB_TYPE_TEXT, 'small', null);
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('ctime', 'institution', 'type'));
        $table->addKeyInfo('institutionfk', XMLDB_KEY_FOREIGN, array('institution'), 'institution', array('name'));
        create_table($table);
        // Insert cron jobs to save institution data
        $cron = new StdClass();
        $cron->callfunction = 'cron_institution_data_weekly';
        $cron->minute = 55;
        $cron->hour = 23;
        $cron->day = '*';
        $cron->month = '*';
        $cron->dayofweek = 6;
        insert_record('cron', $cron);
        $cron = new StdClass();
        $cron->callfunction = 'cron_institution_data_daily';
        $cron->minute = 51;
        $cron->hour = 23;
        $cron->day = '*';
        $cron->month = '*';
        $cron->dayofweek = '*';
        insert_record('cron', $cron);
    }
    if ($oldversion < 2012070200) {
        $table = new XMLDBTable('collection');
        $field = new XMLDBField('group');
        $field->setAttributes(XMLDB_TYPE_INTEGER, 10, null, null, null, null, null, null);
        add_field($table, $field);
        $field = new XMLDBField('institution');
        $field->setAttributes(XMLDB_TYPE_CHAR, 255, null, null, null, null, null, null);
        add_field($table, $field);
        $field = new XMLDBField('owner');
        $field->setAttributes(XMLDB_TYPE_INTEGER, 10, null, null);
        change_field_notnull($table, $field);
        // For PostgresSQL, change_field_notnull of $field=owner with precision = 10 BIGINT(10)
        // will add a temporary column, move data from owner column, remove the column 'owner'
        // and then rename the temporary column to 'owner'. Therefore, all indexes and foreign keys
        // related to column 'owner' will be removed
        if (is_postgres()) {
            $key = new XMLDBKey('owner');
            $key->setAttributes(XMLDB_KEY_FOREIGN, array('owner'), 'usr', array('id'));
            add_key($table, $key);
        }
        $key = new XMLDBKey('group');
        $key->setAttributes(XMLDB_KEY_FOREIGN, array('group'), 'group', array('id'));
        add_key($table, $key);
        $key = new XMLDBKey('institution');
        $key->setAttributes(XMLDB_KEY_FOREIGN, array('institution'), 'institution', array('name'));
        add_key($table, $key);
        // Add constraints
        execute_sql('ALTER TABLE {collection} ADD CHECK (
            (owner IS NOT NULL AND "group" IS NULL     AND institution IS NULL) OR
            (owner IS NULL     AND "group" IS NOT NULL AND institution IS NULL) OR
            (owner IS NULL     AND "group" IS NULL     AND institution IS NOT NULL)
        )');
    }
    if ($oldversion < 2012070300) {
        $table = new XMLDBTable('group');
        $field = new XMLDBField('groupparticipationreports');
        $field->setAttributes(XMLDB_TYPE_INTEGER, 1, null, XMLDB_NOTNULL, null, null, null, 0);
        add_field($table, $field);
    }
    if ($oldversion < 2012080200) {
        $sql = "\n            FROM {usr} u JOIN {auth_instance} ai ON (u.authinstance = ai.id)\n            WHERE u.deleted = 0 AND ai.authname = 'internal' AND u.password != '*' AND u.salt != '*'\n            AND u.password NOT LIKE '\$%'";
        $pwcount = count_records_sql("SELECT COUNT(*) " . $sql);
        $sql = "\n            SELECT u.id, u.password, u.salt" . $sql . " AND u.id > ?\n            ORDER BY u.id";
        $done = 0;
        $lastid = 0;
        $limit = 2000;
        while ($users = get_records_sql_array($sql, array($lastid), 0, $limit)) {
            foreach ($users as $user) {
                // Wrap the old hashed password inside a SHA512 hash ($6$ is the identifier for SHA512)
                $user->password = crypt($user->password, '$6$' . substr(md5(get_config('passwordsaltmain') . $user->salt), 0, 16));
                // Drop the salt from the password as it may contain secrets that are not stored in the db
                // for example, the passwordsaltmain value
                $user->password = substr($user->password, 0, 3) . substr($user->password, 3 + 16);
                set_field('usr', 'password', $user->password, 'id', $user->id);
                remove_user_sessions($user->id);
                $lastid = $user->id;
            }
            $done += count($users);
            log_debug("Upgrading stored passwords: {$done}/{$pwcount}");
            set_time_limit(30);
        }
    }
    if ($oldversion < 2012080300) {
        // For multi-tokens we need '|' aka pipe characters either side of their old single token
        execute_sql('UPDATE {usr_account_preference} SET value = \'|\' || value || \'|\'
                            WHERE field=\'mobileuploadtoken\' AND NOT value ' . db_ilike() . '\'|%|\'');
    }
    if ($oldversion < 2012080600) {
        // Every minute, poll an imap mailbox to see if there are new mail bounces
        $cron = new StdClass();
        $cron->callfunction = 'check_imap_for_bounces';
        $cron->minute = '*';
        $cron->hour = '*';
        $cron->day = '*';
        $cron->month = '*';
        $cron->dayofweek = '*';
        insert_record('cron', $cron);
    }
    if ($oldversion < 2012080601) {
        $table = new XMLDBTable('group');
        $field = new XMLDBField('editwindowstart');
        $field->setAttributes(XMLDB_TYPE_DATETIME);
        add_field($table, $field);
        $field = new XMLDBField('editwindowend');
        $field->setAttributes(XMLDB_TYPE_DATETIME);
        add_field($table, $field);
    }
    if ($oldversion < 2013011700) {
        set_config('defaultregistrationexpirylifetime', 1209600);
    }
    if ($oldversion < 2013012100) {
        $event = (object) array('name' => 'loginas');
        ensure_record_exists('event_type', $event, $event);
    }
    if ($oldversion < 2013012101) {
        $table = new XMLDBTable('event_log');
        $table->addFieldInfo('usr', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL);
        $table->addFieldInfo('realusr', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL);
        $table->addFieldInfo('event', XMLDB_TYPE_CHAR, 255, null, XMLDB_NOTNULL);
        $table->addFieldInfo('data', XMLDB_TYPE_TEXT, null, null, null);
        $table->addFieldInfo('time', XMLDB_TYPE_DATETIME, null, null, XMLDB_NOTNULL);
        $table->addKeyInfo('usrfk', XMLDB_KEY_FOREIGN, array('usr'), 'usr', array('id'));
        $table->addKeyInfo('realusrfk', XMLDB_KEY_FOREIGN, array('realusr'), 'usr', array('id'));
        create_table($table);
        $cron = new StdClass();
        $cron->callfunction = 'cron_event_log_expire';
        $cron->minute = 7;
        $cron->hour = 23;
        $cron->day = '*';
        $cron->month = '*';
        $cron->dayofweek = '*';
        insert_record('cron', $cron);
    }
    if ($oldversion < 2013020500) {
        $table = new XMLDBTable('artefact');
        $field = new XMLDBField('license');
        $field->setAttributes(XMLDB_TYPE_CHAR, 255);
        add_field($table, $field);
        $field = new XMLDBField('licensor');
        $field->setAttributes(XMLDB_TYPE_CHAR, 255);
        add_field($table, $field);
        $field = new XMLDBField('licensorurl');
        $field->setAttributes(XMLDB_TYPE_CHAR, 255);
        add_field($table, $field);
        $table = new XMLDBTable('institution');
        $field = new XMLDBField('licensedefault');
        $field->setAttributes(XMLDB_TYPE_CHAR, 255);
        add_field($table, $field);
        $field = new XMLDBField('licensemandatory');
        $field->setAttributes(XMLDB_TYPE_INTEGER, 1, null, XMLDB_NOTNULL, null, null, null, 0);
        add_field($table, $field);
        $table = new XMLDBTable('artefact_license');
        $table->addFieldInfo('name', XMLDB_TYPE_CHAR, 255, null, XMLDB_NOTNULL);
        $table->addFieldInfo('displayname', XMLDB_TYPE_CHAR, 255, null, null);
        $table->addFieldInfo('shortname', XMLDB_TYPE_CHAR, 255, null, null);
        $table->addFieldInfo('icon', XMLDB_TYPE_CHAR, 255, null, null);
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('name'));
        create_table($table);
    }
    if ($oldversion < 2013020501) {
        require_once 'license.php';
        install_licenses_default();
    }
    if ($oldversion < 2013032202) {
        require_once get_config('libroot') . 'license.php';
        set_field('usr_account_preference', 'value', LICENSE_INSTITUTION_DEFAULT, 'field', 'licensedefault', 'value', '-');
    }
    if ($oldversion < 2013050700) {
        $table = new XMLDBTable('collection_tag');
        $table->addFieldInfo('collection', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL);
        $table->addFieldInfo('tag', XMLDB_TYPE_CHAR, 128, null, XMLDB_NOTNULL);
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('collection', 'tag'));
        $table->addKeyInfo('collectionfk', XMLDB_KEY_FOREIGN, array('collection'), 'collection', array('id'));
        create_table($table);
    }
    if ($oldversion < 2013062600) {
        $table = new XMLDBTable('institution');
        $field = new XMLDBField('dropdownmenu');
        $field->setAttributes(XMLDB_TYPE_INTEGER, 1, null, XMLDB_NOTNULL, null, null, null, 0);
        add_field($table, $field);
    }
    if ($oldversion < 2013081400) {
        // We've made a change to how update_safe_iframe_regex() generates the regex
        // Call this function to make sure the stored value reflects that change.
        update_safe_iframe_regex();
    }
    if ($oldversion < 2013082100) {
        log_debug('Update database for flexible page layouts feature');
        log_debug('1. Create table view_rows_columns');
        $table = new XMLDBTable('view_rows_columns');
        $table->addFieldInfo('view', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL);
        $table->addFieldInfo('row', XMLDB_TYPE_INTEGER, 1, null, XMLDB_NOTNULL);
        $table->addFieldInfo('columns', XMLDB_TYPE_INTEGER, 1, null, XMLDB_NOTNULL);
        $table->addKeyInfo('viewfk', XMLDB_KEY_FOREIGN, array('view'), 'view', array('id'));
        create_table($table);
        log_debug('2. Remake the table view_layout as view_layout_columns');
        $table = new XMLDBTable('view_layout_columns');
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL, XMLDB_SEQUENCE);
        $table->addFieldInfo('columns', XMLDB_TYPE_INTEGER, 1, null, XMLDB_NOTNULL);
        $table->addFieldInfo('widths', XMLDB_TYPE_CHAR, 255, null, XMLDB_NOTNULL);
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addKeyInfo('columnwidthuk', XMLDB_KEY_UNIQUE, array('columns', 'widths'));
        create_table($table);
        log_debug('3. Alter table view_layout');
        $table = new XMLDBTable('view_layout');
        $field = new XMLDBField('rows');
        $field->setAttributes(XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL, null, null, null, 1);
        add_field($table, $field);
        $field = new XMLDBField('iscustom');
        $field->setAttributes(XMLDB_TYPE_INTEGER, 1, null, XMLDB_NOTNULL, null, null, null, 0);
        add_field($table, $field);
        $field = new XMLDBField('layoutmenuorder');
        $field->setAttributes(XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL, null, null, null, 0);
        add_field($table, $field);
        log_debug('4. Create table view_layout_rows_columns');
        $table = new XMLDBTable('view_layout_rows_columns');
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL, XMLDB_SEQUENCE);
        $table->addFieldInfo('viewlayout', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL);
        $table->addFieldInfo('row', XMLDB_TYPE_INTEGER, 1, null, XMLDB_NOTNULL);
        $table->addFieldInfo('columns', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL);
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addKeyInfo('rowfk', XMLDB_KEY_FOREIGN, array('viewlayout'), 'view_layout', array('id'));
        $table->addKeyInfo('columnsfk', XMLDB_KEY_FOREIGN, array('columns'), 'view_layout_columns', array('id'));
        create_table($table);
        log_debug('5. Create table usr_custom_layout');
        $table = new XMLDBTable('usr_custom_layout');
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL, XMLDB_SEQUENCE);
        $table->addFieldInfo('usr', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL);
        $table->addFieldInfo('layout', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL);
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addKeyInfo('usrfk', XMLDB_KEY_FOREIGN, array('usr'), 'usr', array('id'));
        $table->addKeyInfo('layoutfk', XMLDB_KEY_FOREIGN, array('layout'), 'view_layout', array('id'));
        create_table($table);
        log_debug('6. Convert existing view_layout records into new-style view_layouts with just one row');
        $oldlayouts = get_records_array('view_layout', '', '', 'id', 'id, columns, widths');
        foreach ($oldlayouts as $layout) {
            // We don't actually need to populate the "rows", "iscustom" or "layoutmenuorder" columns,
            // because their defaults take care of that.
            // Check to see if there's a view_layout_columns record that matches its widths.
            $colsid = get_field('view_layout_columns', 'id', 'widths', $layout->widths);
            if (!$colsid) {
                $colsid = insert_record('view_layout_columns', (object) array('columns' => $layout->columns, 'widths' => $layout->widths), 'id', true);
            }
            // Now insert a record for it in view_layout_rows_columns, to represent its one row
            insert_record('view_layout_rows_columns', (object) array('viewlayout' => $layout->id, 'row' => 1, 'columns' => $colsid));
            // And also it needs a record in usr_custom_layout saying it belongs to the root user
            insert_record('usr_custom_layout', (object) array('usr' => 0, 'layout' => $layout->id));
        }
        log_debug('7. Drop the obsolete view_layout.columns and view_layout.widths fields');
        $table = new XMLDBTable('view_layout');
        $field = new XMLDBField('columns');
        drop_field($table, $field);
        $field = new XMLDBField('widths');
        drop_field($table, $field);
        log_debug('8. Update default values for tables view_layout, view_layout_columns and view_layout_rows_columns');
        install_view_layout_defaults();
        log_debug('9. Update the table "block_instance"');
        $table = new XMLDBTable('block_instance');
        $field = new XMLDBField('row');
        $field->setAttributes(XMLDB_TYPE_INTEGER, 2, null, XMLDB_NOTNULL, null, null, null, 1);
        // This one tends to take a while...
        set_time_limit(30);
        add_field($table, $field);
        set_time_limit(30);
        // Refactor the block_instance.viewcolumnorderuk key so it includes row.
        $key = new XMLDBKey('viewcolumnorderuk');
        $key->setAttributes(XMLDB_KEY_UNIQUE, array('view', 'column', 'order'));
        // If this particular site has been around since before Mahara 1.2, this
        // will actually have been created as a unique index rather than a unique
        // key, so check for that first.
        $indexname = find_index_name($table, $key);
        if (preg_match('/uix$/', $indexname)) {
            $index = new XMLDBIndex($indexname);
            $index->setAttributes(XMLDB_INDEX_UNIQUE, array('view', 'column', 'order'));
            drop_index($table, $index);
        } else {
            drop_key($table, $key);
        }
        $key = new XMLDBKey('viewrowcolumnorderuk');
        $key->setAttributes(XMLDB_KEY_UNIQUE, array('view', 'row', 'column', 'order'));
        add_key($table, $key);
        log_debug('10. Add a "numrows" column to the views table.');
        // The default value of "1" will be correct
        // for all existing views, because they're using the old one-row layout style
        $table = new XMLDBTable('view');
        $field = new XMLDBField('numrows');
        $field->setAttributes(XMLDB_TYPE_INTEGER, 2, null, XMLDB_NOTNULL, null, null, null, 1);
        add_field($table, $field);
        log_debug('11. Update the table "view_rows_columns" for existing pages');
        execute_sql('INSERT INTO {view_rows_columns} ("view", "row", "columns") SELECT v.id, 1, v.numcolumns FROM {view} v');
    }
    if ($oldversion < 2013091900) {
        // Create skin table...
        $table = new XMLDBTable('skin');
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL, XMLDB_SEQUENCE);
        $table->addFieldInfo('title', XMLDB_TYPE_CHAR, 255, null, XMLDB_NOTNULL);
        $table->addFieldInfo('description', XMLDB_TYPE_TEXT);
        $table->addFieldInfo('owner', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL);
        $table->addFieldInfo('type', XMLDB_TYPE_CHAR, 10, 'private', XMLDB_NOTNULL);
        $table->addFieldInfo('viewskin', XMLDB_TYPE_TEXT, null, null, XMLDB_NOTNULL);
        $table->addFieldInfo('bodybgimg', XMLDB_TYPE_INTEGER, 10);
        $table->addFieldInfo('viewbgimg', XMLDB_TYPE_INTEGER, 10);
        $table->addFieldInfo('ctime', XMLDB_TYPE_DATETIME);
        $table->addFieldInfo('mtime', XMLDB_TYPE_DATETIME);
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addKeyInfo('ownerfk', XMLDB_KEY_FOREIGN, array('owner'), 'usr', array('id'));
        create_table($table);
        // Create skin_favorites table...
        $table = new XMLDBTable('skin_favorites');
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL, XMLDB_SEQUENCE);
        $table->addFieldInfo('user', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL);
        $table->addFieldInfo('favorites', XMLDB_TYPE_TEXT, null, null, XMLDB_NOTNULL);
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addKeyInfo('userfk', XMLDB_KEY_FOREIGN, array('user'), 'usr', array('id'));
        create_table($table);
        // Create skin_fonts table...
        $table = new XMLDBTable('skin_fonts');
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL, XMLDB_SEQUENCE);
        $table->addFieldInfo('name', XMLDB_TYPE_CHAR, 100, null, XMLDB_NOTNULL);
        $table->addFieldInfo('title', XMLDB_TYPE_CHAR, 255, null, XMLDB_NOTNULL);
        $table->addFieldInfo('licence', XMLDB_TYPE_CHAR, 255);
        $table->addFieldInfo('notice', XMLDB_TYPE_TEXT);
        $table->addFieldInfo('previewfont', XMLDB_TYPE_CHAR, 255, null, XMLDB_NOTNULL);
        $table->addFieldInfo('variants', XMLDB_TYPE_TEXT, null, null, XMLDB_NOTNULL);
        $table->addFieldInfo('fonttype', XMLDB_TYPE_CHAR, 10, 'site', XMLDB_NOTNULL);
        $table->addFieldInfo('onlyheading', XMLDB_TYPE_INTEGER, 1, 0, XMLDB_NOTNULL);
        $table->addFieldInfo('fontstack', XMLDB_TYPE_TEXT, null, null, XMLDB_NOTNULL);
        $table->addFieldInfo('genericfont', XMLDB_TYPE_CHAR, 10, null, XMLDB_NOTNULL, null, XMLDB_ENUM, array('cursive', 'fantasy', 'monospace', 'sans-serif', 'serif'));
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addKeyInfo('nameuk', XMLDB_KEY_UNIQUE, array('name'));
        create_table($table);
        // Set column 'skin' to 'view' table...
        $table = new XMLDBTable('view');
        $field = new XMLDBField('skin');
        $field->setAttributes(XMLDB_TYPE_INTEGER, 10);
        add_field($table, $field);
        require_once get_config('libroot') . 'skin.php';
        install_skins_default();
    }
    if ($oldversion < 2013091901) {
        // Add a "skins" table to institutions to record whether they've enabled skins or not
        $table = new XMLDBTable('institution');
        $field = new XMLDBField('skins');
        $field->setAttributes(XMLDB_TYPE_INTEGER, 1, null, XMLDB_NOTNULL, null, null, null, 1, 'dropdownmenu');
        add_field($table, $field);
    }
    if ($oldversion < 2013092300) {
        $table = new XMLDBTable('import_entry_requests');
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('importid', XMLDB_TYPE_CHAR, 255, null, XMLDB_NOTNULL);
        $table->addFieldInfo('entryid', XMLDB_TYPE_CHAR, 255, null, XMLDB_NOTNULL);
        $table->addFieldInfo('entryparent', XMLDB_TYPE_CHAR, 255, null, null);
        $table->addFieldInfo('strategy', XMLDB_TYPE_INTEGER, 1, null, XMLDB_NOTNULL);
        $table->addFieldInfo('ownerid', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL);
        $table->addFieldInfo('plugin', XMLDB_TYPE_CHAR, 255, null, XMLDB_NOTNULL);
        $table->addFieldInfo('entrytype', XMLDB_TYPE_CHAR, 255, null, XMLDB_NOTNULL);
        $table->addFieldInfo('entrytitle', XMLDB_TYPE_TEXT, null, null, XMLDB_NOTNULL);
        $table->addFieldInfo('entrycontent', XMLDB_TYPE_TEXT, null, null, null);
        $table->addFieldInfo('duplicateditemids', XMLDB_TYPE_TEXT, null, null, null);
        $table->addFieldInfo('existingitemids', XMLDB_TYPE_TEXT, null, null, null);
        $table->addFieldInfo('artefactmapping', XMLDB_TYPE_TEXT, null, null, null);
        $table->addFieldInfo('decision', XMLDB_TYPE_INTEGER, 1, null, XMLDB_NOTNULL, null, null, null, 1);
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addKeyInfo('owneridfk', XMLDB_KEY_FOREIGN, array('ownerid'), 'usr', array('id'));
        create_table($table);
    }
    if ($oldversion < 2013092600) {
        //  When uploading file as attachment and attaching it to an artefact, the artefact id
        //  (in artefact field) and uploaded file artefact id (in attachment filed) are stored.
        //  For Resume composite types (educationhistory, employmenthistory, books, etc.) this
        //  is not enough. So we have to add item field to differentiate between e.g. different
        //  employments in employmenhistory and to which employment the user actually whishes to
        //  attach certain attachment...
        $table = new XMLDBTable('artefact_attachment');
        $field = new XMLDBField('item');
        $field->setAttributes(XMLDB_TYPE_INTEGER, 10);
        add_field($table, $field);
    }
    if ($oldversion < 2013112100) {
        // Add a new column 'last_processed_userid' to the table 'activity_queue' in order to
        // split multiple user activity notifications into chunks
        $table = new XMLDBTable('activity_queue');
        $field = new XMLDBField('last_processed_userid');
        $field->setAttributes(XMLDB_TYPE_INTEGER, 10);
        add_field($table, $field);
        $key = new XMLDBKey('last_processed_useridfk');
        $key->setAttributes(XMLDB_KEY_FOREIGN, array('last_processed_userid'), 'usr', array('id'));
        add_key($table, $key);
    }
    if ($oldversion < 2013112600) {
        // If a mahara site was upgraded from 1.0 then keys for the following tables
        // may be missing so we will check for them and if missing add them.
        // Normally when we create a foreign key, we create an index alongside it.
        // If these keys were created by the 1.1 upgrade script, they will be missing
        // those indexes. To get the index and the key in place, we have to re-create
        // the key.
        $table = new XMLDBTable('artefact_access_usr');
        $index = new XMLDBIndex('usrfk');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('usr'));
        if (!index_exists($table, $index)) {
            $field = new XMLDBField('usr');
            $field->setAttributes(XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL);
            try {
                change_field_type($table, $field, true, true);
            } catch (SQLException $e) {
                log_warn("Couldn't change artefact_access_usr.usr column to NOT NULL (it probably contains some NULL values)");
            }
            $key = new XMLDBKey('usrfk');
            $key->setAttributes(XMLDB_KEY_FOREIGN, array('usr'), 'usr', array('id'));
            try {
                add_key($table, $key);
            } catch (SQLException $e) {
                log_warn("Couldn't set a foreign key on column artefact_access_usr.usr referencing usr.id (the column probably contains some nonexistent user id's");
            }
        }
        $index = new XMLDBIndex('artefactfk');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('artefact'));
        if (!index_exists($table, $index)) {
            $field = new XMLDBField('artefact');
            $field->setAttributes(XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL);
            try {
                change_field_type($table, $field, true, true);
            } catch (SQLException $e) {
                log_warn("Couldn't change artefact_access_usr.artefact column to NOT NULL (it probably contains some NULL values)");
            }
            $key = new XMLDBKey('artefactfk');
            $key->setAttributes(XMLDB_KEY_FOREIGN, array('artefact'), 'artefact', array('id'));
            try {
                add_key($table, $key);
            } catch (SQLException $e) {
                log_warn("Couldn't set a foreign key on column artefact_access_usr.artefact referencing artefact.id (the column probably contains some nonexistent artefact id's)");
            }
        }
        $key = new XMLDBKey('primary');
        $key->setAttributes(XMLDB_KEY_PRIMARY, array('usr', 'artefact'));
        if (!db_key_exists($table, $key)) {
            try {
                add_key($table, $key);
            } catch (SQLException $e) {
                log_warn("Couldn't set a primary key on table artefact_access_usr across columns (usr, artefact). (Probably the table contains some non-unique values in those columns)");
            }
        }
        $table = new XMLDBTable('artefact_access_role');
        $index = new XMLDBIndex('artefactfk');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('artefact'));
        if (!index_exists($table, $index)) {
            $field = new XMLDBField('artefact');
            $field->setAttributes(XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL);
            try {
                change_field_type($table, $field, true, true);
            } catch (SQLException $e) {
                log_warn("Couldn't change artefact_access_role.artefact column to NOT NULL (it probably contains some NULL values)");
            }
            $key = new XMLDBKey('artefactfk');
            $key->setAttributes(XMLDB_KEY_FOREIGN, array('artefact'), 'artefact', array('id'));
            try {
                add_key($table, $key);
            } catch (SQLException $e) {
                log_warn("Couldn't set a foreign key on column artefact_access_role.artefact referencing artefact.id (the column probably contains some nonexistente artefact id's)");
            }
        }
        $key = new XMLDBKey('primary');
        $key->setAttributes(XMLDB_KEY_PRIMARY, array('role', 'artefact'));
        if (!db_key_exists($table, $key)) {
            try {
                add_key($table, $key);
            } catch (SQLException $e) {
                log_warn("Couldn't set a primary key on table artefact_access_role across columns (role, artefact). (Probably there are some non-unique values in those columns.)");
            }
        }
        $table = new XMLDBTable('artefact_attachment');
        $index = new XMLDBIndex('artefactfk');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('artefact'));
        if (!index_exists($table, $index)) {
            try {
                add_index($table, $index);
            } catch (SQLException $e) {
                log_warn("Couldn't set a non-unique index on column artefact_attachment.artefact");
            }
        }
        $table = new XMLDBTable('group');
        $key = new XMLDBKey('grouptypefk');
        $key->setAttributes(XMLDB_KEY_FOREIGN, array('grouptype'), 'grouptype', array('name'));
        if (!db_key_exists($table, $key)) {
            try {
                add_key($table, $key);
            } catch (SQLException $e) {
                log_warn("Couldn't set a foreign key on column group.grouptype referencing grouptype.name (the column probably contains some nonexistent grouptypes)");
            }
        }
        $table = new XMLDBTable('grouptype_roles');
        $index = new XMLDBIndex('grouptypefk');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('grouptype'));
        if (!index_exists($table, $index)) {
            $key = new XMLDBKey('grouptypefk');
            $key->setAttributes(XMLDB_KEY_FOREIGN, array('grouptype'), 'grouptype', array('name'));
            try {
                add_key($table, $key);
            } catch (SQLException $e) {
                log_warn("Couldn't set a foreign key on column grouptype_roles.grouptype referencing grouptype.name (the column probably contains some nonexistent grouptypes");
            }
        }
        $key = new XMLDBKey('primary');
        $key->setAttributes(XMLDB_KEY_PRIMARY, array('grouptype', 'role'));
        if (!db_key_exists($table, $key)) {
            try {
                add_key($table, $key);
            } catch (SQLException $e) {
                log_warn("Couldn't set a primary key on table grouptype_roles across columns (grouptype, role). (Probably there are some non-unique values in those columns.)");
            }
        }
        $table = new XMLDBTable('view_autocreate_grouptype');
        $index = new XMLDBIndex('viewfk');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('view'));
        if (!index_exists($table, $index)) {
            $field = new XMLDBField('view');
            $field->setAttributes(XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL);
            try {
                change_field_type($table, $field, true, true);
            } catch (SQLException $e) {
                log_warn("Couldn't change column view_autocreate_grouptype.view to NOT NULL (probably the column contains some NULL values)");
            }
            $key = new XMLDBKey('viewfk');
            $key->setAttributes(XMLDB_KEY_FOREIGN, array('view'), 'view', array('id'));
            try {
                add_key($table, $key);
            } catch (SQLException $e) {
                log_warn("Couldn't set a foreign key on column view_autocreate_grouptype.view referencing view.id (probably the column contains some nonexistent view IDs");
            }
        }
        $index = new XMLDBIndex('grouptypefk');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('grouptype'));
        if (!index_exists($table, $index)) {
            $key = new XMLDBKey('grouptypefk');
            $key->setAttributes(XMLDB_KEY_FOREIGN, array('grouptype'), 'grouptype', array('name'));
            try {
                add_key($table, $key);
            } catch (SQLException $e) {
                log_warn("Couldn't set a foreign key on column view_autocreate_grouptype.grouptype referencing grouptype.name (probably the column contains some nonexistent grouptypes");
            }
        }
        $key = new XMLDBKey('primary');
        $key->setAttributes(XMLDB_KEY_PRIMARY, array('view', 'grouptype'));
        if (!db_key_exists($table, $key)) {
            try {
                add_key($table, $key);
            } catch (SQLException $e) {
                log_warn("Couldn't set a primary key on table view_autocreate_grouptype across columns (view, grouptype). (Probably those columns contain some non-unique values.)");
            }
        }
    }
    if ($oldversion < 2013121300) {
        // view_rows_columns can be missing the 'id' column if upgrading from version
        // earlier than v1.8 and because we are adding a sequential primary column after
        // the table is already made we need to
        // - check that the column doesn't exist then add it without key or sequence
        // - update the values for the new id column to be sequential
        // - then add the primary key and finally make the column sequential
        if ($records = get_records_sql_array('SELECT * FROM {view_rows_columns}', array())) {
            if (empty($records[0]->id)) {
                $table = new XMLDBTable('view_rows_columns');
                $field = new XMLDBField('id');
                $field->setAttributes(XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL, null, null, null, 1, 'view');
                add_field($table, $field);
                $x = 1;
                foreach ($records as $record) {
                    execute_sql('UPDATE {view_rows_columns} SET id = ? WHERE view = ? AND row = ? AND columns = ?', array($x, $record->view, $record->row, $record->columns));
                    $x++;
                }
                // we can't add a sequence on a field unless it has a primary key
                $key = new XMLDBKey('primary');
                $key->setAttributes(XMLDB_KEY_PRIMARY, array('id'));
                add_key($table, $key);
                $field = new XMLDBField('id');
                $field->setAttributes(XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL, XMLDB_SEQUENCE);
                change_field_type($table, $field);
                // but when we change field type postgres drops the keys for the column so we need
                // to add the primary key back again - see line 2205 for more info
                if (is_postgres()) {
                    $key = new XMLDBKey('primary');
                    $key->setAttributes(XMLDB_KEY_PRIMARY, array('id'));
                    add_key($table, $key);
                }
            }
        }
    }
    if ($oldversion < 2014010700) {
        // If the usr_custom_layout.group column exists, it indicates that we this patch has already
        // been run and we should skip it.
        $table = new XMLDBTable('usr_custom_layout');
        $field = new XMLDBField('group');
        $field->setAttributes(XMLDB_TYPE_INTEGER, 10, null, null, null, null, null, null, 'usr');
        if (!field_exists($table, $field)) {
            // Add a log output line here so that we can tell whether this patch ran or not.
            log_debug('Correcting custom layout table structures.');
            // fix issue where custom layouts saved in groups, site pages and institutions
            // were set to have usr = 0 because view owner was null
            $table = new XMLDBTable('usr_custom_layout');
            $field = new XMLDBField('usr');
            $field->setAttributes(XMLDB_TYPE_INTEGER, 10, null, null);
            change_field_notnull($table, $field);
            // For PostgresSQL, change_field_notnull creates a temporary column, moves data to new temp column
            // and then renames the temp column to 'usr'. Therefore, all indexes and foreign keys
            // related to column 'owner' will be removed
            if (is_postgres()) {
                $key = new XMLDBKey('usr');
                $key->setAttributes(XMLDB_KEY_FOREIGN, array('usr'), 'usr', array('id'));
                add_key($table, $key);
            }
            $field = new XMLDBField('group');
            $field->setAttributes(XMLDB_TYPE_INTEGER, 10, null, null, null, null, null, null, 'usr');
            add_field($table, $field);
            $key = new XMLDBKey('groupfk');
            $key->setAttributes(XMLDB_KEY_FOREIGN, array('group'), 'group', array('id'));
            add_key($table, $key);
            $field = new XMLDBField('institution');
            $field->setAttributes(XMLDB_TYPE_CHAR, 255, null, null, null, null, null, null, 'group');
            add_field($table, $field);
            $key = new XMLDBKey('institutionfk');
            $key->setAttributes(XMLDB_KEY_FOREIGN, array('institution'), 'institution', array('name'));
            add_key($table, $key);
            // update previous records
            // get custom layouts with usr = 0 which are not in default set
            $groupcustomlayouts = get_records_sql_array('SELECT ucl.layout FROM {usr_custom_layout} ucl
                                                         LEFT JOIN {view_layout} vl ON vl.id = ucl.layout
                                                         WHERE usr = 0 AND iscustom = 1
                                                         ORDER BY ucl.id', array());
            if ($groupcustomlayouts != false) {
                foreach ($groupcustomlayouts as $groupcustomlayout) {
                    // find views using this custom layout
                    $views = get_records_array('view', 'layout', $groupcustomlayout->layout, '', 'owner, "group", institution');
                    if ($views != false) {
                        foreach ($views as $view) {
                            if (isset($view->owner)) {
                                // view owned by individual
                                $recordexists = get_record('usr_custom_layout', 'usr', $view->owner, 'layout', $groupcustomlayout->layout);
                                if (!$recordexists) {
                                    // add new record into usr_custom_layout table
                                    $customlayout = new stdClass();
                                    $customlayout->usr = $view->owner;
                                    $customlayout->layout = $groupcustomlayout->layout;
                                    insert_record('usr_custom_layout', $customlayout, 'id');
                                }
                            } else {
                                if (isset($view->group)) {
                                    // view owned by group
                                    $recordexists = get_record('usr_custom_layout', 'group', $view->group, 'layout', $groupcustomlayout->layout);
                                    if (!$recordexists) {
                                        // add new record into usr_custom_layout table
                                        $customlayout = new stdClass();
                                        $customlayout->group = $view->group;
                                        $customlayout->layout = $groupcustomlayout->layout;
                                        insert_record('usr_custom_layout', $customlayout, 'id');
                                    }
                                } else {
                                    if (isset($view->institution)) {
                                        // view owned by group
                                        $recordexists = get_record('usr_custom_layout', 'institution', $view->institution, 'layout', $groupcustomlayout->layout);
                                        if (!$recordexists) {
                                            // add new record into usr_custom_layout table
                                            $customlayout = new stdClass();
                                            $customlayout->institution = $view->institution;
                                            $customlayout->layout = $groupcustomlayout->layout;
                                            insert_record('usr_custom_layout', $customlayout, 'id');
                                        }
                                    }
                                }
                            }
                        }
                    }
                    // now remove this custom layout
                    $removedrecords = delete_records('usr_custom_layout', 'usr', '0', 'layout', $groupcustomlayout->layout);
                }
            }
        }
    }
    if ($oldversion < 2014010800) {
        $table = new XMLDBTable('institution_config');
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL, XMLDB_SEQUENCE);
        $table->addFieldInfo('institution', XMLDB_TYPE_CHAR, 255, null, XMLDB_NOTNULL);
        $table->addFieldInfo('field', XMLDB_TYPE_CHAR, 255, null, XMLDB_NOTNULL);
        $table->addFieldInfo('value', XMLDB_TYPE_TEXT, 'small');
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addKeyInfo('institutionfk', XMLDB_KEY_FOREIGN, array('institution'), 'institution', array('name'));
        $table->addIndexInfo('instfielduk', XMLDB_INDEX_UNIQUE, array('institution', 'field'));
        create_table($table);
    }
    if ($oldversion < 2014010801) {
        // adding institution column to allow for different site content for each institution
        $table = new XMLDBTable('site_content');
        $field = new XMLDBField('institution');
        $field->setAttributes(XMLDB_TYPE_CHAR, 255, null, null);
        add_field($table, $field);
        // resetting the primary key and updating what is currently there to be
        // the 'mahara' institution's site pages
        $key = new XMLDBKey('primary');
        $key->setAttributes(XMLDB_KEY_PRIMARY, array('name'));
        drop_key($table, $key);
        execute_sql("UPDATE {site_content} SET institution = ?", array('mahara'));
        $key = new XMLDBKey('primary');
        $key->setAttributes(XMLDB_KEY_PRIMARY, array('name', 'institution'));
        add_key($table, $key);
        $key = new XMLDBKey('institutionfk');
        $key->setAttributes(XMLDB_KEY_FOREIGN, array('institution'), 'institution', array('name'));
        add_key($table, $key);
        // now add the default general pages for each existing institution with the values of
        // the 'mahara' institution. These can them be altered via Administration -> Institutions -> General pages
        $sitecontentarray = array();
        $sitecontents = get_records_array('site_content', 'institution', 'mahara');
        foreach ($sitecontents as $sitecontent) {
            $sitecontentarray[$sitecontent->name] = $sitecontent->content;
        }
        $pages = site_content_pages();
        $now = db_format_timestamp(time());
        $institutions = get_records_array('institution');
        foreach ($institutions as $institution) {
            if ($institution->name != 'mahara') {
                foreach ($pages as $name) {
                    $page = new stdClass();
                    $page->name = $name;
                    $page->ctime = $now;
                    $page->mtime = $now;
                    $page->content = $sitecontentarray[$name];
                    $page->institution = $institution->name;
                    insert_record('site_content', $page);
                    $pageconfig = new stdClass();
                    $pageconfig->institution = $institution->name;
                    $pageconfig->field = 'sitepages_' . $name;
                    $pageconfig->value = 'mahara';
                    insert_record('institution_config', $pageconfig);
                }
            }
        }
    }
    if ($oldversion < 2014021100) {
        // Reset the view's skin value, if the skin does not exist
        execute_sql("UPDATE {view} v SET skin = NULL WHERE v.skin IS NOT NULL AND NOT EXISTS (SELECT id FROM {skin} s WHERE v.skin = s.id)");
    }
    if ($oldversion < 2014021200) {
        // Adding new Creative Commons 4.0 licenses.
        // CC4.0 will be added only if:
        // -- The CC4.0 URL doesn't already exist;
        // -- And CC3.0 hasn't been deleted earlier.
        $license = new stdClass();
        $license->name = 'http://creativecommons.org/licenses/by-sa/4.0/';
        $license->displayname = get_string('licensedisplaynamebysa', 'install');
        $license->shortname = get_string('licenseshortnamebysa', 'install');
        $license->icon = 'license:by-sa.png';
        $version30 = 'http://creativecommons.org/licenses/by-sa/3.0/';
        if (!record_exists('artefact_license', 'name', $license->name) && record_exists('artefact_license', 'name', $version30)) {
            insert_record('artefact_license', $license);
        }
        $license = new stdClass();
        $license->name = 'http://creativecommons.org/licenses/by/4.0/';
        $license->displayname = get_string('licensedisplaynameby', 'install');
        $license->shortname = get_string('licenseshortnameby', 'install');
        $license->icon = 'license:by.png';
        $version30 = 'http://creativecommons.org/licenses/by/3.0/';
        if (!record_exists('artefact_license', 'name', $license->name) && record_exists('artefact_license', 'name', $version30)) {
            insert_record('artefact_license', $license);
        }
        $license = new stdClass();
        $license->name = 'http://creativecommons.org/licenses/by-nd/4.0/';
        $license->displayname = get_string('licensedisplaynamebynd', 'install');
        $license->shortname = get_string('licenseshortnamebynd', 'install');
        $license->icon = 'license:by-nd.png';
        $version30 = 'http://creativecommons.org/licenses/by-nd/3.0/';
        if (!record_exists('artefact_license', 'name', $license->name) && record_exists('artefact_license', 'name', $version30)) {
            insert_record('artefact_license', $license);
        }
        $license = new stdClass();
        $license->name = 'http://creativecommons.org/licenses/by-nc-sa/4.0/';
        $license->displayname = get_string('licensedisplaynamebyncsa', 'install');
        $license->shortname = get_string('licenseshortnamebyncsa', 'install');
        $license->icon = 'license:by-nc-sa.png';
        $version30 = 'http://creativecommons.org/licenses/by-nc-sa/3.0/';
        if (!record_exists('artefact_license', 'name', $license->name) && record_exists('artefact_license', 'name', $version30)) {
            insert_record('artefact_license', $license);
        }
        $license = new stdClass();
        $license->name = 'http://creativecommons.org/licenses/by-nc/4.0/';
        $license->displayname = get_string('licensedisplaynamebync', 'install');
        $license->shortname = get_string('licenseshortnamebync', 'install');
        $license->icon = 'license:by-nc.png';
        $version30 = 'http://creativecommons.org/licenses/by-nc/3.0/';
        if (!record_exists('artefact_license', 'name', $license->name) && record_exists('artefact_license', 'name', $version30)) {
            insert_record('artefact_license', $license);
        }
        $license = new stdClass();
        $license->name = 'http://creativecommons.org/licenses/by-nc-nd/4.0/';
        $license->displayname = get_string('licensedisplaynamebyncnd', 'install');
        $license->shortname = get_string('licenseshortnamebyncnd', 'install');
        $license->icon = 'license:by-nc-nd.png';
        $version30 = 'http://creativecommons.org/licenses/by-nc-nd/3.0/';
        if (!record_exists('artefact_license', 'name', $license->name) && record_exists('artefact_license', 'name', $version30)) {
            insert_record('artefact_license', $license);
        }
    }
    if ($oldversion < 2014022400) {
        // Make sure artefacts are properly locked for submitted views.
        // Can be a problem for older sites
        $submitted = get_records_sql_array("SELECT v.owner FROM {view_artefact} va\n                        LEFT JOIN {view} v on v.id = va.view\n                        LEFT JOIN {artefact} a on a.id = va.artefact\n                        WHERE (v.submittedgroup IS NOT NULL OR v.submittedhost IS NOT NULL)", array());
        if ($submitted) {
            require_once get_config('docroot') . 'artefact/lib.php';
            foreach ($submitted as $record) {
                ArtefactType::update_locked($record->owner);
            }
        }
    }
    if ($oldversion < 2014022600) {
        $table = new XMLDBTable('host');
        $field = new XMLDBField('portno');
        drop_field($table, $field);
    }
    if ($oldversion < 2014032400) {
        $table = new XMLDBTable('group');
        $field = new XMLDBField('sendnow');
        $field->setAttributes(XMLDB_TYPE_INTEGER, 1, null, XMLDB_NOTNULL, null, null, null, 0);
        add_field($table, $field);
    }
    if ($oldversion < 2014032500) {
        $table = new XMLDBTable('usr');
        $field = new XMLDBField('probation');
        $field->setAttributes(XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL, null, null, null, 0);
        add_field($table, $field);
    }
    if ($oldversion < 2014032600) {
        set_config('watchlistnotification_delay', 20);
        if (!table_exists(new XMLDBTable('watchlist_queue'))) {
            $table = new XMLDBTable('watchlist_queue');
            $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL, XMLDB_SEQUENCE);
            $table->addFieldInfo('usr', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL);
            $table->addFieldInfo('block', XMLDB_TYPE_INTEGER, 10, null, false);
            $table->addFieldInfo('view', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL);
            $table->addFieldInfo('changed_on', XMLDB_TYPE_DATETIME, null, null, XMLDB_NOTNULL);
            $table->addKeyInfo('viewfk', XMLDB_KEY_FOREIGN, array('view'), 'view', array('id'));
            $table->addKeyInfo('blockfk', XMLDB_KEY_FOREIGN, array('block'), 'block_instance', array('id'));
            $table->addKeyInfo('usrfk', XMLDB_KEY_FOREIGN, array('usr'), 'usr', array('id'));
            $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
            create_table($table);
        }
        // new event type: delete blockinstance
        $e = new stdClass();
        $e->name = 'deleteblockinstance';
        ensure_record_exists('event_type', $e, $e);
        // install the core event subscriptions
        $subs = array(array('event' => 'blockinstancecommit', 'callfunction' => 'watchlist_record_changes'), array('event' => 'deleteblockinstance', 'callfunction' => 'watchlist_block_deleted'), array('event' => 'saveartefact', 'callfunction' => 'watchlist_record_changes'), array('event' => 'saveview', 'callfunction' => 'watchlist_record_changes'));
        foreach ($subs as $sub) {
            ensure_record_exists('event_subscription', (object) $sub, (object) $sub);
        }
        // install the cronjobs...
        $cron = new stdClass();
        $cron->callfunction = 'watchlist_process_notifications';
        $cron->minute = '*';
        $cron->hour = '*';
        $cron->day = '*';
        $cron->month = '*';
        $cron->dayofweek = '*';
        ensure_record_exists('cron', $cron, $cron);
    }
    if ($oldversion < 2014032700) {
        // Remove bad data created by the upload user via csv where users in no institution
        // have 'licensedefault' set causing an error
        execute_sql("DELETE FROM {usr_account_preference} WHERE FIELD = 'licensedefault' AND usr IN (\n                        SELECT u.id FROM {usr} u\n                        LEFT JOIN {usr_institution} ui ON ui.usr = u.id\n                        WHERE ui.institution = 'mahara' OR ui.institution is null\n                     )");
    }
    if ($oldversion < 2014040300) {
        // Figure out where the magicdb is, and stick with that.
        require_once get_config('libroot') . 'file.php';
        update_magicdb_path();
    }
    // Add id field and corresponding index to institution table.
    if ($oldversion < 2014040400) {
        $table = new XMLDBTable('institution');
        // Add id field.
        $field = new XMLDBField('id');
        if (!field_exists($table, $field)) {
            // Field.
            $field->setAttributes(XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL, null, null, null, 1, 'name');
            add_field($table, $field);
            // Update ids.
            $institutions = get_records_array('institution');
            $x = 1;
            foreach ($institutions as $institution) {
                execute_sql('UPDATE {institution} SET id = ? WHERE name = ?', array($x, $institution->name));
                $x++;
            }
            $key = new XMLDBKey('inst_id_uk');
            $key->setAttributes(XMLDB_KEY_UNIQUE, array('id'));
            add_key($table, $key);
            // Add sequence.
            $field = new XMLDBField('id');
            $field->setAttributes(XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL, XMLDB_SEQUENCE);
            change_field_type($table, $field);
            // In postgres, keys and indexes are removed when a field is changed ("Add sequence" above), so add the key back.
            if (is_postgres()) {
                $key = new XMLDBKey('inst_id_uk');
                $key->setAttributes(XMLDB_KEY_UNIQUE, array('id'));
                add_key($table, $key);
            }
        }
    }
    if ($oldversion < 2014041401) {
        $table = new XMLDBTable('institution');
        $field = new XMLDBField('registerallowed');
        $field->setAttributes(XMLDB_TYPE_INTEGER, 1, null, XMLDB_NOTNULL, null, null, null, '0');
        change_field_default($table, $field);
    }
    if ($oldversion < 2014041600) {
        // Add allownonemethod and defaultmethod fields to activity_type table.
        $table = new XMLDBTable('activity_type');
        $field = new XMLDBField('allownonemethod');
        $field->setAttributes(XMLDB_TYPE_CHAR, 255, null, XMLDB_NOTNULL, null, null, null, 1, 'delay');
        add_field($table, $field);
        $field = new XMLDBField('defaultmethod');
        $field->setAttributes(XMLDB_TYPE_CHAR, 255, null, null, null, null, null, 'email', 'allownonemethod');
        add_field($table, $field);
        // Allow null method in usr_activity_preference.
        // Null indicates "none", no record indicates "not yet set" so use the default.
        $table = new XMLDBTable('usr_activity_preference');
        $field = new XMLDBField('method');
        $field->setAttributes(XMLDB_TYPE_CHAR, 255, null, null, null, null, null, null);
        change_field_notnull($table, $field);
    }
    // Add about me block to existing profile template.
    if ($oldversion < 2014043000) {
        $systemprofileviewid = get_field('view', 'id', 'owner', 0, 'type', 'profile');
        // Find out how many blocks already exist.
        $maxorder = get_field_sql('select max("order") from {block_instance} where "view"=? and "row"=? and "column"=?', array($systemprofileviewid, 1, 1));
        // Create the block at the end of the cell.
        require_once get_config('docroot') . 'blocktype/lib.php';
        $aboutme = new BlockInstance(0, array('blocktype' => 'profileinfo', 'title' => get_string('aboutme', 'blocktype.internal/profileinfo'), 'view' => $systemprofileviewid, 'row' => 1, 'column' => 1, 'order' => $maxorder + 1));
        $aboutme->commit();
        // Move the block to the start of the cell.
        require_once get_config('libroot') . 'view.php';
        $view = new View($systemprofileviewid);
        $view->moveblockinstance(array('id' => $aboutme->get('id'), 'row' => 1, 'column' => 1, 'order' => 1));
    }
    if ($oldversion < 2014050901) {
        require_once get_config('docroot') . 'artefact/lib.php';
        // First drop artefact_parent_cache table.
        $table = new XMLDBTable('artefact_parent_cache');
        drop_table($table, true);
        // Remove cron jobs from DB.
        delete_records('cron', 'callfunction', 'rebuild_artefact_parent_cache_dirty');
        delete_records('cron', 'callfunction', 'rebuild_artefact_parent_cache_complete');
        // Add path field to artefact table.
        $table = new XMLDBTable('artefact');
        $field = new XMLDBField('path');
        $field->setAttributes(XMLDB_TYPE_CHAR, '1024', null, null, null, null, null);
        add_field($table, $field);
        // Fill the new field with path data.
        // Set all artefacts to the path they'd have if they have no parent.
        log_debug('Filling in parent artefact paths');
        if (get_config('searchplugin') == 'elasticsearch') {
            log_debug('Dropping elasticsearch artefact triggers');
            require_once get_config('docroot') . 'search/elasticsearch/lib.php';
            ElasticsearchIndexing::drop_triggers('artefact');
        }
        $count = 0;
        $limit = 1000;
        $limitsmall = 200;
        $total = count_records_select('artefact', 'path IS NULL AND parent IS NULL');
        for ($i = 0; $i <= $total; $i += $limitsmall) {
            if (is_mysql()) {
                execute_sql("UPDATE {artefact} SET path = CONCAT('/', id) WHERE path IS NULL AND parent IS NULL LIMIT " . $limitsmall);
            } else {
                // Postgres can only handle limit in subquery
                execute_sql("UPDATE {artefact} SET path = CONCAT('/', id) WHERE id IN (SELECT id FROM {artefact} WHERE path IS NULL AND parent IS NULL LIMIT " . $limitsmall . ")");
            }
            $count += $limitsmall;
            if ($count % $limit == 0 || $count >= $total) {
                if ($count > $total) {
                    $count = $total;
                }
                log_debug("{$count}/{$total}");
                set_time_limit(30);
            }
        }
        $newcount = count_records_select('artefact', 'path IS NULL');
        if ($newcount) {
            $childlevel = 0;
            do {
                $childlevel++;
                $lastcount = $newcount;
                log_debug("Filling in level-{$childlevel} child artefact paths");
                if (is_postgres()) {
                    execute_sql("\n                        UPDATE {artefact}\n                        SET path = p.path || '/' || {artefact}.id\n                        FROM {artefact} p\n                        WHERE\n                            {artefact}.parent=p.id\n                            AND {artefact}.path IS NULL\n                            AND p.path IS NOT NULL\n                    ");
                } else {
                    execute_sql("\n                        UPDATE\n                            {artefact} a\n                            INNER JOIN {artefact} p\n                            ON a.parent = p.id\n                        SET a.path=p.path || '/' || a.id\n                        WHERE\n                            a.path IS NULL\n                            AND p.path IS NOT NULL\n                    ");
                }
                $newcount = count_records_select('artefact', 'path IS NULL');
                // There may be some bad records whose paths can't be filled in,
                // so stop looping if the count stops going down.
            } while ($newcount > 0 && $newcount < $lastcount);
            log_debug("Done filling in child artefact paths");
        }
        if (get_config('searchplugin') == 'elasticsearch') {
            log_debug("Add triggers back in");
            ElasticsearchIndexing::create_triggers('artefact');
        }
    }
    // Make objectionable independent of view_access page.
    if ($oldversion < 2014060300) {
        log_debug("Create 'objectionable' table.");
        $table = new XMLDBTable('objectionable');
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL, XMLDB_SEQUENCE);
        $table->addFieldInfo('objecttype', XMLDB_TYPE_CHAR, 20, null, XMLDB_NOTNULL);
        $table->addFieldInfo('objectid', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL);
        $table->addFieldInfo('reportedby', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL);
        $table->addFieldInfo('report', XMLDB_TYPE_TEXT, 'small', null, XMLDB_NOTNULL);
        $table->addFieldInfo('reportedtime', XMLDB_TYPE_DATETIME, null, null, XMLDB_NOTNULL);
        $table->addFieldInfo('resolvedby', XMLDB_TYPE_INTEGER, 10, null, null);
        $table->addFieldInfo('resolvedtime', XMLDB_TYPE_DATETIME, null, null);
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addKeyInfo('reporterfk', XMLDB_KEY_FOREIGN, array('reportedby'), 'usr', array('id'));
        $table->addKeyInfo('resolverfk', XMLDB_KEY_FOREIGN, array('resolvedby'), 'usr', array('id'));
        $table->addIndexInfo('objectix', XMLDB_INDEX_NOTUNIQUE, array('objectid', 'objecttype'));
        create_table($table);
        // Migrate data to a new format.
        // Since we don't have report or name of the user, use root ID.
        // Table 'notification_internal_activity' contains data that is
        // not possible to extract in any reasonable way.
        $objectionable = get_records_array('view_access', 'accesstype', 'objectionable');
        db_begin();
        log_debug('Migrating objectionable records to new format');
        if (!empty($objectionable)) {
            $count = 0;
            $limit = 1000;
            $total = count($objectionable);
            foreach ($objectionable as $record) {
                $todb = new stdClass();
                $todb->objecttype = 'view';
                $todb->objectid = $record->view;
                $todb->reportedby = 0;
                $todb->report = '';
                $todb->reportedtime = $record->ctime ? $record->ctime : format_date(time());
                if (!empty($record->stopdate)) {
                    // Since we can't get an ID of a user who resolved an issue, use root ID.
                    $todb->resolvedby = 0;
                    $todb->resolvedtime = $record->stopdate;
                }
                insert_record('objectionable', $todb);
                $count++;
                if ($count % $limit == 0 || $count == $total) {
                    log_debug("{$count}/{$total}");
                    set_time_limit(30);
                }
            }
        }
        // Delete data from 'view_access' table as we don't need it any more.
        delete_records('view_access', 'accesstype', 'objectionable');
        db_commit();
        log_debug("Drop constraint on 'view_access'");
        // Need to run this to avoid contraints problems on Postgres.
        if (is_postgres()) {
            execute_sql('ALTER TABLE {view_access} DROP CONSTRAINT {viewacce_acc_ck}');
        }
        log_debug("Update 'view_access' accesstype");
        // Update accesstype in 'view_access' not to use 'objectionable'.
        $table = new XMLDBTable('view_access');
        $field = new XMLDBField('accesstype');
        $field->setAttributes(XMLDB_TYPE_CHAR, 16, null, null, null, XMLDB_ENUM, array('public', 'loggedin', 'friends'));
        change_field_enum($table, $field);
    }
    if ($oldversion < 2014060500) {
        log_debug("Add 'artefact_access' table.");
        $table = new XMLDBTable('artefact_access');
        $table->addFieldInfo('artefact', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL);
        $table->addFieldInfo('accesstype', XMLDB_TYPE_CHAR, 16, null, null, null, XMLDB_ENUM, array('public', 'loggedin', 'friends'));
        $table->addFieldInfo('group', XMLDB_TYPE_INTEGER, 10);
        $table->addFieldInfo('usr', XMLDB_TYPE_INTEGER, 10);
        $table->addFieldInfo('institution', XMLDB_TYPE_CHAR, 255);
        $table->addFieldInfo('ctime', XMLDB_TYPE_DATETIME, null, null, XMLDB_NOTNULL);
        $table->addKeyInfo('artefactfk', XMLDB_KEY_FOREIGN, array('artefact'), 'artefact', array('id'));
        $table->addKeyInfo('groupfk', XMLDB_KEY_FOREIGN, array('group'), 'group', array('id'));
        $table->addKeyInfo('usrfk', XMLDB_KEY_FOREIGN, array('usr'), 'usr', array('id'));
        $table->addKeyInfo('institutionfk', XMLDB_KEY_FOREIGN, array('institution'), 'institution', array('name'));
        $table->addIndexInfo('accesstypeix', XMLDB_INDEX_NOTUNIQUE, array('accesstype'));
        create_table($table);
    }
    if ($oldversion < 2014061100) {
        log_debug('Add module related tables');
        $table = new XMLDBTable('module_installed');
        $table->addFieldInfo('name', XMLDB_TYPE_CHAR, 255, XMLDB_UNSIGNED, XMLDB_NOTNULL);
        $table->addFieldInfo('version', XMLDB_TYPE_INTEGER, 10, XMLDB_UNSIGNED, XMLDB_NOTNULL);
        $table->addFieldInfo('release', XMLDB_TYPE_TEXT, 'small', XMLDB_UNSIGNED, XMLDB_NOTNULL);
        $table->addFieldInfo('active', XMLDB_TYPE_INTEGER, 1, XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, 1);
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('name'));
        create_table($table);
        $table = new XMLDBTable('module_cron');
        $table->addFieldInfo('plugin', XMLDB_TYPE_CHAR, 255, XMLDB_UNSIGNED, XMLDB_NOTNULL);
        $table->addFieldInfo('callfunction', XMLDB_TYPE_CHAR, 255, XMLDB_UNSIGNED, XMLDB_NOTNULL);
        $table->addFieldInfo('minute', XMLDB_TYPE_CHAR, 25, XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '*');
        $table->addFieldInfo('hour', XMLDB_TYPE_CHAR, 25, XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '*');
        $table->addFieldInfo('day', XMLDB_TYPE_CHAR, 25, XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '*');
        $table->addFieldInfo('dayofweek', XMLDB_TYPE_CHAR, 25, XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '*');
        $table->addFieldInfo('month', XMLDB_TYPE_CHAR, 25, XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '*');
        $table->addFieldInfo('nextrun', XMLDB_TYPE_DATETIME, null, null);
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('plugin', 'callfunction'));
        $table->addKeyInfo('pluginfk', XMLDB_KEY_FOREIGN, array('plugin'), 'module_installed', array('name'));
        create_table($table);
        $table = new XMLDBTable('module_config');
        $table->addFieldInfo('plugin', XMLDB_TYPE_CHAR, 100, XMLDB_UNSIGNED, XMLDB_NOTNULL);
        $table->addFieldInfo('field', XMLDB_TYPE_CHAR, 100, XMLDB_UNSIGNED, XMLDB_NOTNULL);
        $table->addFieldInfo('value', XMLDB_TYPE_TEXT, 'small', XMLDB_UNSIGNED, XMLDB_NOTNULL);
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('plugin', 'field'));
        $table->addKeyInfo('pluginfk', XMLDB_KEY_FOREIGN, array('plugin'), 'module_installed', array('name'));
        create_table($table);
        $table = new XMLDBTable('module_event_subscription');
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, 10, XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('plugin', XMLDB_TYPE_CHAR, 255, XMLDB_UNSIGNED, XMLDB_NOTNULL);
        $table->addFieldInfo('event', XMLDB_TYPE_CHAR, 50, XMLDB_UNSIGNED, XMLDB_NOTNULL);
        $table->addFieldInfo('callfunction', XMLDB_TYPE_CHAR, 255, XMLDB_UNSIGNED, XMLDB_NOTNULL);
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addKeyInfo('pluginfk', XMLDB_KEY_FOREIGN, array('plugin'), 'module_installed', array('name'));
        $table->addKeyInfo('eventfk', XMLDB_KEY_FOREIGN, array('event'), 'event_type', array('name'));
        $table->addKeyInfo('subscruk', XMLDB_KEY_UNIQUE, array('plugin', 'event', 'callfunction'));
        create_table($table);
    }
    if ($oldversion < 2014062000) {
        log_debug('Fix up auth_clean_expired_password_requests cron');
        $where = array('callfunction' => 'auth_clean_expired_password_requests');
        $data = array('callfunction' => 'auth_clean_expired_password_requests', 'minute' => '5', 'hour' => '0', 'day' => '*', 'month' => '*', 'dayofweek' => '*');
        ensure_record_exists('cron', (object) $where, (object) $data);
    }
    if ($oldversion < 2014062500) {
        log_debug("Add 'feedbacknotify' option to 'group' table");
        require_once get_config('libroot') . 'group.php';
        $table = new XMLDBTable('group');
        $field = new XMLDBField('feedbacknotify');
        $field->setAttributes(XMLDB_TYPE_INTEGER, 1, null, XMLDB_NOTNULL, null, null, null, GROUP_ROLES_ALL);
        if (!field_exists($table, $field)) {
            add_field($table, $field);
        }
    }
    if ($oldversion < 2014073100) {
        log_debug('Delete leftover data which are not associated to any institution');
        // Institution collections
        $collectionids = get_column_sql('
            SELECT id
            FROM {collection} c
            WHERE c.institution IS NOT NULL
                AND NOT EXISTS (SELECT 1 FROM {institution} i WHERE i.name = c.institution)');
        if ($collectionids) {
            require_once get_config('libroot') . 'collection.php';
            $count = 0;
            $limit = 200;
            $total = count($collectionids);
            foreach ($collectionids as $collectionid) {
                $collection = new Collection($collectionid);
                $collection->delete();
                $count++;
                if ($count % $limit == 0) {
                    log_debug("Deleting leftover collections: {$count}/{$total}");
                    set_time_limit(30);
                }
            }
            log_debug("Deleting leftover collections: {$count}/{$total}");
        }
        log_debug('Delete leftover custom layouts / usr registration');
        // Institution custom layouts and registration
        delete_records_sql('
            DELETE FROM {usr_custom_layout}
            WHERE {usr_custom_layout}.institution IS NOT NULL
                AND NOT EXISTS (SELECT 1 FROM {institution} i WHERE i.name = {usr_custom_layout}.institution)');
        delete_records_sql('
            DELETE FROM {usr_registration}
            WHERE {usr_registration}.institution IS NOT NULL
                AND NOT EXISTS (SELECT 1 FROM {institution} i WHERE i.name = {usr_registration}.institution)');
    }
    if ($oldversion < 2014081900) {
        log_debug("Check blocktype 'text' is installed");
        if ($data = check_upgrades('blocktype.text')) {
            upgrade_plugin($data);
        }
    }
    if ($oldversion < 2014091600) {
        log_debug('Allow anonymous pages');
        $table = new XMLDBTable('view');
        $field = new XMLDBField('anonymise');
        $field->setAttributes(XMLDB_TYPE_INTEGER, 1, null, XMLDB_NOTNULL, null, null, null, 0);
        add_field($table, $field);
        set_config('allowanonymouspages', 0);
    }
    if ($oldversion < 2014091800) {
        log_debug("Add 'allowarchives' column to the 'group' table");
        $table = new XMLDBTable('group');
        $field = new XMLDBField('allowarchives');
        $field->setAttributes(XMLDB_TYPE_INTEGER, 1, null, XMLDB_NOTNULL, null, null, null, 0);
        add_field($table, $field);
        log_debug("Add 'submittedstatus' column to 'view' table");
        $table = new XMLDBTable('view');
        $field = new XMLDBField('submittedstatus');
        $field->setAttributes(XMLDB_TYPE_INTEGER, 1, null, XMLDB_NOTNULL, null, null, null, 0, 'submittedtime');
        add_field($table, $field);
        log_debug("Need to update the submitted status for any existing views that are submitted");
        execute_sql('UPDATE {view} SET submittedstatus = 1 WHERE submittedgroup IS NOT NULL
                    AND submittedtime IS NOT NULL');
        log_debug("Add 'submittedstatus' column to 'collection' table");
        $table = new XMLDBTable('collection');
        $field = new XMLDBField('submittedstatus');
        $field->setAttributes(XMLDB_TYPE_INTEGER, 1, null, XMLDB_NOTNULL, null, null, null, 0, 'submittedtime');
        add_field($table, $field);
        log_debug('Need to update the submitted status for any existing collections that are submitted');
        execute_sql('UPDATE {collection} SET submittedstatus = 1 WHERE submittedgroup IS NOT NULL
                    AND submittedtime IS NOT NULL');
        log_debug('Adding the export queue / submission tables');
        // Add export queue table - each export is one row.
        $table = new XMLDBTable('export_queue');
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL, XMLDB_SEQUENCE);
        $table->addFieldInfo('usr', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL);
        $table->addFieldInfo('type', XMLDB_TYPE_CHAR, 50);
        $table->addFieldInfo('exporttype', XMLDB_TYPE_CHAR, 10, null, XMLDB_NOTNULL);
        $table->addFieldInfo('ctime', XMLDB_TYPE_DATETIME, null, null, XMLDB_NOTNULL);
        $table->addFieldInfo('starttime', XMLDB_TYPE_DATETIME);
        $table->addFieldInfo('externalid', XMLDB_TYPE_CHAR, 255);
        $table->addFieldInfo('submitter', XMLDB_TYPE_INTEGER, 10);
        // for when the submitter is not the owner
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addKeyInfo('usrfk', XMLDB_KEY_FOREIGN, array('usr'), 'usr', array('id'));
        $table->addKeyInfo('submitterfk', XMLDB_KEY_FOREIGN, array('submitter'), 'usr', array('id'));
        create_table($table);
        // Add export queue items table which maps what views/collections/artefacts relate to the queue item.
        $table = new XMLDBTable('export_queue_items');
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL, XMLDB_SEQUENCE);
        $table->addFieldInfo('exportqueueid', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL);
        $table->addFieldInfo('collection', XMLDB_TYPE_INTEGER, 10);
        $table->addFieldInfo('view', XMLDB_TYPE_INTEGER, 10);
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addKeyInfo('exportqueuefk', XMLDB_KEY_FOREIGN, array('exportqueueid'), 'export_queue', array('id'));
        $table->addKeyInfo('collectionfk', XMLDB_KEY_FOREIGN, array('collection'), 'collection', array('id'));
        $table->addKeyInfo('viewfk', XMLDB_KEY_FOREIGN, array('view'), 'view', array('id'));
        create_table($table);
        // Add export archive table to hold info that will allow one to download the zip file
        $table = new XMLDBTable('export_archive');
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL, XMLDB_SEQUENCE);
        $table->addFieldInfo('usr', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL);
        $table->addFieldInfo('filename', XMLDB_TYPE_CHAR, 255, null, XMLDB_NOTNULL);
        $table->addFieldInfo('filetitle', XMLDB_TYPE_CHAR, 255, null, XMLDB_NOTNULL);
        $table->addFieldInfo('filepath', XMLDB_TYPE_CHAR, 255, null, XMLDB_NOTNULL);
        $table->addFieldInfo('submission', XMLDB_TYPE_INTEGER, 1, null, XMLDB_NOTNULL, null, null, null, 0);
        $table->addFieldInfo('ctime', XMLDB_TYPE_DATETIME, null, null, XMLDB_NOTNULL);
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addKeyInfo('usrfk', XMLDB_KEY_FOREIGN, array('usr'), 'usr', array('id'));
        create_table($table);
        // Add archived submissions table to hold submission info
        $table = new XMLDBTable('archived_submissions');
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL, XMLDB_SEQUENCE);
        $table->addFieldInfo('archiveid', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL);
        $table->addFieldInfo('group', XMLDB_TYPE_INTEGER, 10);
        $table->addFieldInfo('externalhost', XMLDB_TYPE_CHAR, 50);
        $table->addFieldInfo('externalid', XMLDB_TYPE_CHAR, 255);
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addKeyInfo('groupfk', XMLDB_KEY_FOREIGN, array('group'), 'group', array('id'));
        $table->addKeyInfo('archivefk', XMLDB_KEY_FOREIGN, array('archiveid'), 'export_archive', array('id'));
        create_table($table);
        // install the cronjob to process export queue
        $cron = new StdClass();
        $cron->callfunction = 'export_process_queue';
        $cron->minute = '*/6';
        $cron->hour = '*';
        $cron->day = '*';
        $cron->month = '*';
        $cron->dayofweek = '*';
        ensure_record_exists('cron', $cron, $cron);
        // install the cronjob to clean up deleted archived submissions items
        $cron = new StdClass();
        $cron->callfunction = 'submissions_delete_removed_archive';
        $cron->minute = '15';
        $cron->hour = '1';
        $cron->day = '1';
        $cron->month = '*';
        $cron->dayofweek = '*';
        ensure_record_exists('cron', $cron, $cron);
    }
    if ($oldversion < 2014092300) {
        log_debug('Add the socialprofile artefacttype');
        // Need to insert directly into the table instead of running upgrade_plugin(), so that we can transition
        // all the old social network artefact types into the new unified socialprofile type before deleting
        // the old types from artefact_installed_type
        insert_record('artefact_installed_type', (object) array('name' => 'socialprofile', 'plugin' => 'internal'));
        // Convert existing messaging types to socialprofile types.
        $oldmessagingfieldsarray = array('icqnumber', 'msnnumber', 'aimscreenname', 'yahoochat', 'skypeusername', 'jabberusername');
        $oldmessagingfields = implode(',', array_map('db_quote', $oldmessagingfieldsarray));
        $sql = "SELECT * FROM {artefact}\n                WHERE artefacttype IN (" . $oldmessagingfields . ")";
        if ($results = get_records_sql_assoc($sql, array())) {
            $count = 0;
            $limit = 1000;
            $total = count($results);
            safe_require('artefact', 'internal');
            foreach ($results as $result) {
                $i = new ArtefactTypeSocialprofile($result->id, (array) $result);
                $i->set('artefacttype', 'socialprofile');
                switch ($result->artefacttype) {
                    case 'aimscreenname':
                        $i->set('note', 'aim');
                        $i->set('description', get_string('aim', 'artefact.internal'));
                        break;
                    case 'icqnumber':
                        $i->set('note', 'icq');
                        $i->set('description', get_string('icq', 'artefact.internal'));
                        break;
                    case 'jabberusername':
                        $i->set('note', 'jabber');
                        $i->set('description', get_string('jabber', 'artefact.internal'));
                        break;
                    case 'msnnumber':
                    case 'skypeusername':
                        // MSN no longer exists and has been replaced by Skype.
                        $i->set('note', 'skype');
                        $i->set('description', get_string('skype', 'artefact.internal'));
                        break;
                    case 'yahoochat':
                        $i->set('note', 'yahoo');
                        $i->set('description', get_string('yahoo', 'artefact.internal'));
                        break;
                }
                $i->set('title', $result->title);
                $i->commit();
                $count++;
                if ($count % $limit == 0 || $count == $total) {
                    log_debug("{$count}/{$total}");
                    set_time_limit(30);
                }
            }
        }
        $sql = "SELECT value FROM {search_config} WHERE plugin='elasticsearch' AND field='artefacttypesmap'";
        if ($result = get_field_sql($sql, array())) {
            log_debug('Clean up elasticsearch fields for the old messaging fields');
            $artefacttypesmap_array = explode("\n", $result);
            $elasticsearchartefacttypesmap = array();
            foreach ($artefacttypesmap_array as $key => $value) {
                $tmpkey = explode("|", $value);
                if (count($tmpkey) == 3) {
                    if (!in_array($tmpkey[0], $oldmessagingfieldsarray)) {
                        // we're going to keep this one.
                        $elasticsearchartefacttypesmap[] = $value;
                    }
                }
            }
            // add socialprofile field.
            $elasticsearchartefacttypesmap[] = "socialprofile|Profile|Text";
            // now save the data excluding the old messaging fields.
            set_config_plugin('search', 'elasticsearch', 'artefacttypesmap', implode("\n", $elasticsearchartefacttypesmap));
        }
        log_debug('Delete unused, but still installed artefact types');
        delete_records_select("artefact_installed_type", "name IN (" . $oldmessagingfields . ")");
        log_debug('Install the social profile blocktype so users can see their migrated data');
        if ($data = check_upgrades('blocktype.internal/socialprofile')) {
            upgrade_plugin($data);
        }
    }
    if ($oldversion < 2014092300) {
        log_debug("Install 'multirecipientnotification' plugin");
        if ($data = check_upgrades('module.multirecipientnotification')) {
            upgrade_plugin($data);
        }
    }
    if ($oldversion < 2014101300) {
        log_debug("Make sure default notifications are not set to 'none'");
        // Make sure the 'system messages' and 'messages from other users' have a notification method set
        // It was possible after earlier upgrades to set method to 'none'.
        // Also make sure old defaultmethod is respected.
        $activitytypes = get_records_assoc('activity_type');
        foreach ($activitytypes as $type) {
            $type->defaultmethod = get_config('defaultnotificationmethod') ? get_config('defaultnotificationmethod') : 'email';
            if ($type->name == 'maharamessage' || $type->name == 'usermessage') {
                $type->allownonemethod = 0;
            }
            update_record('activity_type', $type);
        }
        // Make sure users have their 'system messages' and 'messages from other users' notification method set
        if ($useractivities = get_records_sql_assoc("SELECT * FROM {activity_type} at, {usr_activity_preference} uap\n                                                     WHERE at.id = uap.activity\n                                                     AND at.name IN ('maharamessage', 'usermessage')\n                                                     AND (method IS NULL OR method = '')", array())) {
            foreach ($useractivities as $activity) {
                $userprefs = new stdClass();
                $userprefs->method = $activity->defaultmethod;
                update_record('usr_activity_preference', $userprefs, array('usr' => $activity->usr, 'activity' => $activity->activity));
            }
        }
    }
    if ($oldversion < 2014101500) {
        log_debug('Place skin fonts in their correct directories');
        if ($fonts = get_records_assoc('skin_fonts', 'fonttype', 'google')) {
            $fontpath = get_config('dataroot') . 'skins/fonts/';
            foreach ($fonts as $font) {
                // if google font is not already in subdir
                if (!is_dir($fontpath . $font->name)) {
                    if (file_exists($fontpath . $font->previewfont)) {
                        // we need to create the subdir and move the file into it
                        $newfontpath = $fontpath . $font->name . '/';
                        check_dir_exists($newfontpath, true, true);
                        rename($fontpath . $font->previewfont, $newfontpath . $font->previewfont);
                        // and move the license file if it exists also
                        if (file_exists($fontpath . $font->licence)) {
                            rename($fontpath . $font->licence, $newfontpath . $font->licence);
                        }
                    } else {
                        // the file is not there for some reason so we might as well delete the font from the db
                        $result = delete_records('skin_fonts', 'name', $font->name);
                        if ($result !== false) {
                            // Check to see if the font is being used in a skin. If it is remove it from
                            // the skin's viewskin data
                            $skins = get_records_array('skin');
                            if (is_array($skins)) {
                                foreach ($skins as $skin) {
                                    $options = unserialize($skin->viewskin);
                                    foreach ($options as $key => $option) {
                                        if (preg_match('/font_family/', $key) && $option == $font->name) {
                                            require_once get_config('docroot') . 'lib/skin.php';
                                            $skinobj = new Skin($skin->id);
                                            $viewskin = $skinobj->get('viewskin');
                                            $viewskin[$key] = false;
                                            $skinobj->set('viewskin', $viewskin);
                                            $skinobj->commit();
                                        }
                                    }
                                }
                            }
                        }
                    }
                }
            }
        }
    }
    if ($oldversion < 2014101501) {
        log_debug('Unlock root user grouphomepage template in case it is locked');
        set_field('view', 'locked', 0, 'type', 'grouphomepage', 'owner', 0);
    }
    if ($oldversion < 2014110500) {
        log_debug('Add cacheversion and assign random string');
        // Adding cacheversion, as an arbitrary number appended to the end of JS & CSS files in order
        // to tell cacheing software when they've been updated. (Without having to use the Mahara
        // minor version for that purpose.)
        // Set this to a random starting number to make minor version slightly harder to detect
        if (!get_config('cacheversion')) {
            set_config('cacheversion', rand(1000, 9999));
        }
    }
    if ($oldversion < 2014110700) {
        log_debug("Add in 'shortcut' category to 'blocktype_category'");
        // Increment all the existing sorts by 1 to make room...
        $cats = get_records_array('blocktype_category', '', '', 'sort desc');
        foreach ($cats as $cat) {
            $cat->sort = $cat->sort + 1;
            update_record('blocktype_category', $cat, 'name');
        }
        $todb = new stdClass();
        $todb->name = 'shortcut';
        $todb->sort = '0';
        insert_record('blocktype_category', $todb);
    }
    if ($oldversion < 2014112700) {
        log_debug("Fix up group homepages so that no duplicate 'groupview' blocks are present");
        // Need to find the group homepages that have more than one groupview on them
        // and merge their data into one groupview as we shouldn't allow more than one groupview block
        // as it breaks pagination
        // First get any pages that have more than one groupview on them
        // and find the status of the groupview blocks
        if ($records = get_records_sql_array("SELECT v.id AS view, bi.id AS block FROM {view} v\n            INNER JOIN {block_instance} bi ON v.id = bi.view\n            WHERE v.id IN (\n                SELECT v.id FROM {view} v\n                 INNER JOIN {block_instance} bi ON v.id = bi.view\n                 WHERE bi.blocktype = 'groupviews'\n                  AND v.type = 'grouphomepage'\n                 GROUP BY v.id\n                 HAVING COUNT(v.id) > 1\n            )\n            AND bi.blocktype='groupviews'\n            ORDER BY v.id, bi.id", array())) {
            require_once get_config('docroot') . 'blocktype/lib.php';
            $lastview = 0;
            // set default
            $info = array();
            $x = -1;
            foreach ($records as $record) {
                if ($lastview != $record->view) {
                    $x++;
                    $info[$x]['in']['showgroupviews'] = 0;
                    $info[$x]['in']['showsharedviews'] = 0;
                    $info[$x]['in']['view'] = $record->view;
                    $info[$x]['in']['block'] = $record->block;
                    $lastview = $record->view;
                } else {
                    $info[$x]['out'][] = $record->block;
                }
                $bi = new BlockInstance($record->block);
                $configdata = $bi->get('configdata');
                if (!empty($configdata['showgroupviews'])) {
                    $info[$x]['in']['showgroupviews'] = 1;
                }
                if (!empty($configdata['showsharedviews'])) {
                    $info[$x]['in']['showsharedviews'] = 1;
                }
            }
            // now that we have info on the state of play we need to save one of the blocks
            // with correct data and delete the not needed blocks
            $count = 0;
            $limit = 1000;
            $total = count($info);
            foreach ($info as $item) {
                $bi = new BlockInstance($item['in']['block']);
                $configdata = $bi->get('configdata');
                $configdata['showgroupviews'] = $item['in']['showgroupviews'];
                $configdata['showsharedviews'] = $item['in']['showsharedviews'];
                $bi->set('configdata', $configdata);
                $bi->commit();
                foreach ($item['out'] as $old) {
                    $bi = new BlockInstance($old);
                    $bi->delete();
                }
                $count++;
                if ($count % $limit == 0 || $count == $total) {
                    log_debug("{$count}/{$total}");
                    set_time_limit(30);
                }
            }
        }
    }
    if ($oldversion < 2014121200) {
        log_debug('Remove layout preview thumbs directory');
        require_once 'file.php';
        $layoutdir = get_config('dataroot') . 'images/layoutpreviewthumbs';
        if (file_exists($layoutdir)) {
            rmdirr($layoutdir);
        }
    }
    if ($oldversion < 2015013000) {
        log_debug("Add a 'sortorder' column to 'blocktype_installed_category'");
        // Add a sortorder column to blocktype_installed_category
        $table = new XMLDBTable('blocktype_installed_category');
        $field = new XMLDBField('sortorder');
        $field->setAttributes(XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL, null, null, null, 100000, 'category');
        add_field($table, $field);
    }
    if ($oldversion < 2015021000) {
        log_debug('Need to update any dashboard pages to not have skins');
        // and seen as we are updating and selecting from the same table
        // we need to use a temptable for it to work in mysql
        execute_Sql("UPDATE {view} SET skin = NULL WHERE id IN ( SELECT vid FROM (SELECT id AS vid FROM {view} WHERE type = 'dashboard' AND skin IS NOT NULL) AS temptable)");
    }
    if ($oldversion < 2015021900) {
        log_debug('Remove bbcode formatting from existing wall posts');
        require_once get_config('docroot') . '/lib/stringparser_bbcode/lib.php';
        if ($records = get_records_sql_array("SELECT id, text FROM {blocktype_wall_post} WHERE text LIKE '%[%'", array())) {
            foreach ($records as &$r) {
                $r->text = parse_bbcode($r->text);
                update_record('blocktype_wall_post', $r);
            }
        }
    }
    if ($oldversion < 2015030400) {
        log_debug("Update search config settings");
        if (get_config('searchusernames') === 1) {
            set_config('nousernames', 0);
        } else {
            set_config('nousernames', 1);
        }
        delete_records('config', 'field', 'searchusernames');
    }
    if ($oldversion < 2015032600) {
        log_debug("Update block categories for plugins");
        if ($blocktypes = plugins_installed('blocktype', true)) {
            foreach ($blocktypes as $bt) {
                install_blocktype_categories_for_plugin(blocktype_single_to_namespaced($bt->name, $bt->artefactplugin));
            }
        }
    }
    if ($oldversion < 2015033000) {
        log_debug("Updating TinyMCE emoticon locations in mahara database");
        // Seeing as tinymce has moved the location of the emoticons
        // we need to fix up a few places where users could have added emoticons.
        // $replacements is key = table, value = column
        $replacements = array('view' => 'description', 'artefact' => 'title', 'artefact' => 'description', 'group' => 'description', 'interaction_forum_post' => 'body', 'notification_internal_activity' => 'message', 'blocktype_wall_post' => 'text', 'site_content' => 'content');
        foreach ($replacements as $key => $value) {
            execute_sql("UPDATE {" . $key . "} SET " . $value . " = REPLACE(" . $value . ", '/emotions/img', '/emoticons/img') WHERE " . $value . " LIKE '%/emotions/img%'");
        }
        // we need to handle block_instance configdata in a special way
        if ($results = get_records_sql_array("SELECT id FROM {block_instance} WHERE configdata LIKE '%/emotions/img%'", array())) {
            log_debug("Updating 'block_instance' data for TinyMCE");
            require_once get_config('docroot') . 'blocktype/lib.php';
            $count = 0;
            $limit = 1000;
            $total = count($results);
            foreach ($results as $result) {
                $bi = new BlockInstance($result->id);
                $configdata = $bi->get('configdata');
                foreach ($configdata as $key => $value) {
                    $configdata[$key] = preg_replace('/\\/emotions\\/img/', '/emotions/img', $value);
                }
                $bi->set('configdata', $configdata);
                $bi->commit();
                $count++;
                if ($count % $limit == 0 || $count == $total) {
                    log_debug("{$count}/{$total}");
                    set_time_limit(30);
                }
            }
        }
    }
    if ($oldversion < 2015041400) {
        log_debug('Force install of annotation and webservices plugins');
        if ($data = check_upgrades('artefact.annotation')) {
            upgrade_plugin($data);
        }
        if ($data = check_upgrades('auth.webservice')) {
            upgrade_plugin($data);
        }
    }
    if ($oldversion < 2015042800) {
        log_debug('Clear Dwoo cache of unescaped institution names');
        require_once 'dwoo/dwoo/dwooAutoload.php';
        @unlink(get_config('dataroot') . 'dwoo/compile/default' . get_config('docroot') . 'theme/raw/' . 'templates/view/accesslistrow.tpl.d' . Dwoo_Core::RELEASE_TAG . '.php');
        @unlink(get_config('dataroot') . 'dwoo/compile/default' . get_config('docroot') . 'theme/raw/' . 'templates/admin/users/accesslistitem.tpl.d' . Dwoo_Core::RELEASE_TAG . '.php');
    }
    if ($oldversion < 2015071500) {
        log_debug('Expanding the size of the import_entry_requests.entrycontent column');
        $table = new XMLDBTable('import_entry_requests');
        $field = new XMLDBField('entrycontent');
        $field->setType(XMLDB_TYPE_TEXT);
        $field->setLength('big');
        change_field_precision($table, $field);
    }
    if ($oldversion < 2015072000) {
        // If we are upgrading from a site built before 2014092300 straight to 15.10
        // then the plugin won't exist as an artefact.
        if (table_exists(new XMLDBTable('artefact_multirecipient_userrelation'))) {
            log_debug('Change installation of artefact plugin multirecipentNotification to plugin module.');
            // first, drop the old triggers
            db_drop_trigger('update_unread_insert2', 'artefact_multirecipient_userrelation');
            db_drop_trigger('update_unread_update2', 'artefact_multirecipient_userrelation');
            db_drop_trigger('update_unread_delete2', 'artefact_multirecipient_userrelation');
            // rename tables artefact_multirecipientnotifiaction_notification and
            // Table: artefact_multirecipient_userrelation to module-prefix
            execute_sql("ALTER TABLE {artefact_multirecipient_notification} RENAME TO {module_multirecipient_notification}");
            execute_sql("ALTER TABLE {artefact_multirecipient_userrelation} RENAME TO {module_multirecipient_userrelation}");
            if (is_postgres()) {
                // Rename seq artefact_multirecipientnotifiaction_notification_id_seq and
                // artefact_multirecipient_userrelation_id_seq
                execute_sql("ALTER SEQUENCE {artefact_multirecipient_notification_id_seq} RENAME TO {module_multirecipient_notification_id_seq}");
                execute_sql("ALTER SEQUENCE {artefact_multirecipient_userrelation_id_seq} RENAME TO {module_multirecipient_userrelation_id_seq}");
            }
            //move event_subscrition entries for artefact plugin
            //multirecipientnotification to table module_event_subscription
            $subscriptions = get_records_array('artefact_event_subscription', 'plugin', 'multirecipientnotification');
            delete_records('artefact_event_subscription', 'plugin', 'multirecipientnotification');
            delete_records('artefact_installed_type', 'plugin', 'multirecipientnotification');
            $installrecord = get_record('artefact_installed', 'name', 'multirecipientnotification');
            if (is_object($installrecord)) {
                insert_record('module_installed', $installrecord);
                delete_records('artefact_installed', 'name', 'multirecipientnotification');
            }
            if (is_array($subscriptions)) {
                foreach ($subscriptions as $subscription) {
                    insert_record('module_event_subscription', $subscription, 'id');
                }
            }
            // recreate trigger
            safe_require('module', 'multirecipientnotification');
            PluginModuleMultirecipientnotification::postinst(0);
        }
    }
    if ($oldversion < 2015081000) {
        log_debug('Add user_login_data table to record when a user logs in');
        $table = new XMLDBTable('usr_login_data');
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL, XMLDB_SEQUENCE);
        $table->addFieldInfo('usr', XMLDB_TYPE_INTEGER, 10, false, XMLDB_NOTNULL);
        $table->addFieldInfo('ctime', XMLDB_TYPE_DATETIME, null, null, XMLDB_NOTNULL);
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addKeyInfo('usrloginfk', XMLDB_KEY_FOREIGN, array('usr'), 'usr', array('id'));
        create_table($table);
        // Insert info about current users's logins
        $results = get_records_sql_array("SELECT id,lastlogin FROM {usr} WHERE deleted = 0 AND lastlogin IS NOT NULL");
        $count = 0;
        $limit = 1000;
        $total = count($results);
        foreach ($results as $result) {
            insert_record('usr_login_data', (object) array('usr' => $result->id, 'ctime' => $result->lastlogin));
            $count++;
            if ($count % $limit == 0 || $count == $total) {
                log_debug("{$count}/{$total}");
                set_time_limit(30);
            }
        }
    }
    if ($oldversion < 2015081700) {
        // In 15.10, we changed the registration site policy.
        // We need to remind the site admins to register the site again with the new policy.
        log_debug('Remind the site admins to register the site again with the new policy');
        if (get_config('new_registration_policy') != -1) {
            set_config('new_registration_policy', true);
        }
        if (get_config('registration_sendweeklyupdates')) {
            set_config('registration_sendweeklyupdates', false);
        }
    }
    if ($oldversion < 2015082500) {
        // Add a site default portfolio page template
        log_debug('Add a site default portfolio page template');
        require_once 'view.php';
        install_system_portfolio_view();
    }
    if ($oldversion < 2015091700) {
        log_debug('Update cached customizable theme CSS');
        $styles = get_records_array('institution', 'theme', 'custom', 'id', 'displayname, style');
        if ($styles) {
            foreach ($styles as $newinstitution) {
                $styleid = $newinstitution->style;
                $properties = array();
                $record = (object) array('style' => $styleid);
                $proprecs = get_records_array('style_property', 'style', $styleid, 'field', 'field, value');
                foreach ($proprecs as $p) {
                    $properties[$p->field] = $p->value;
                }
                // Update the css
                $smarty = smarty_core();
                $smarty->assign('data', $properties);
                set_field('style', 'css', $smarty->fetch('customcss.tpl'), 'id', $styleid);
            }
        }
    }
    return $status;
}
Esempio n. 27
0
function xmldb_local_upgrade($oldversion)
{
    global $CFG, $THEME, $db;
    $result = true;
    if ($result && $oldversion < 2008032500) {
        /// Define table backup_guids to be created
        $table = new XMLDBTable('backup_guids');
        /// Adding fields to table backup_guids
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('guid', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('src_table', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('src_field', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('src_value', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('courseid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        /// Adding keys to table backup_guids
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        //     $table->addKeyInfo('backup_guids_uk', XMLDB_KEY_UNIQUE, array('src_table', 'src_field', 'src_value'));
        /// Adding indexes to table backup_guids
        $table->addIndexInfo('guid_idx', XMLDB_INDEX_UNIQUE, array('guid'));
        /// Launch create table for backup_guids
        $result = $result && create_table($table);
        /// Define table restore_guids to be created
        $table = new XMLDBTable('restore_guids');
        /// Adding fields to table restore_guids
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('guid', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('src_table', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('src_field', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('src_value', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('courseid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        /// Adding keys to table restore_guids
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        // uncommenting this key - it doesn't work for mysql users.
        //       $table->addKeyInfo('backup_guids_uk', XMLDB_KEY_UNIQUE, array('src_table', 'src_field', 'src_value'));
        /// Adding indexes to table restore_guids
        $table->addIndexInfo('guid_idx', XMLDB_INDEX_UNIQUE, array('guid'));
        /// Launch create table for restore_guids
        $result = $result && create_table($table);
    }
    if ($result && $oldversion < 2008032501) {
        /// Define field src_value to be dropped from backup_guids
        $table = new XMLDBTable('backup_guids');
        $field = new XMLDBField('courseid');
        /// Launch drop field src_value
        $result = $result && drop_field($table, $field);
    }
    if ($result && $oldversion < 2008032602) {
        /// Define key backup_guids_uk (unique) to be dropped form restore_guids
        $table = new XMLDBTable('restore_guids');
        $key = new XMLDBKey('backup_guids_uk');
        $key->setAttributes(XMLDB_KEY_UNIQUE, array('src_table', 'src_field', 'src_value', 'courseid'));
        /// Launch drop key backup_guids_uk
        $result = $result && drop_key($table, $key);
        /// Define key backup_guids_uk (unique) to be added to restore_guids
        //      $table = new XMLDBTable('restore_guids');
        //       $key = new XMLDBKey('backup_guids_uk');
        //       $key->setAttributes(XMLDB_KEY_UNIQUE, array('src_table', 'src_field', 'src_value', 'courseid'));
        /// Launch add key backup_guids_uk
        //        $result = $result && add_key($table, $key);
        /// Define index guid_idx (not unique) to be dropped form restore_guids
        $table = new XMLDBTable('restore_guids');
        $index = new XMLDBIndex('guid_idx');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('guid'));
        /// Launch drop index guid_idx
        $result = $result && drop_index($table, $index);
        /// Define index guid_idx (not unique) to be added to restore_guids
        $table = new XMLDBTable('restore_guids');
        $index = new XMLDBIndex('guid_idx');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('guid'));
        /// Launch add index guid_idx
        $result = $result && add_index($table, $index);
    }
    //new incremental_courses table.
    if ($result && $oldversion < 2008041101) {
        // new incremental table.
        /// Define table to be created
        $table = new XMLDBTable('incremental_courses');
        /// Adding fields to table
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('courseid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('laststarttime', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('lastendtime', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('laststatus', XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('nextstarttime', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        /// Adding keys to table
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        /// Launch create table
        $result = $result && create_table($table);
    }
    if ($result && $oldversion < 2008041102) {
        //new incremental_instance table.
        /// Define table
        $table = new XMLDBTable('incremental_instance');
        /// Adding fields to table
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('courseid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('filename', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('hash', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('timecreated', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        /// Adding keys to table
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        /// Launch create table
        $result = $result && create_table($table);
    }
    return $result;
}
function xmldb_oublog_upgrade($oldversion = 0)
{
    global $CFG, $THEME, $db;
    $result = true;
    if ($result && $oldversion < 2008022600) {
        /// Define field views to be added to oublog_instances
        $table = new XMLDBTable('oublog_instances');
        $field = new XMLDBField('views');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'accesstoken');
        /// Launch add field views
        $result = $result && add_field($table, $field);
        $table = new XMLDBTable('oublog');
        $field = new XMLDBField('views');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'global');
        /// Launch add field views
        $result = $result && add_field($table, $field);
    }
    if ($result && $oldversion < 2008022700) {
        /// Define field oublogid to be added to oublog_links
        $table = new XMLDBTable('oublog_links');
        $field = new XMLDBField('oublogid');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null, 'id');
        /// Launch add field oublogid
        $result = $result && add_field($table, $field);
        /// Define key oublog_links_oublog_fk (foreign) to be added to oublog_links
        $table = new XMLDBTable('oublog_links');
        $key = new XMLDBKey('oublog_links_oublog_fk');
        $key->setAttributes(XMLDB_KEY_FOREIGN, array('oublogid'), 'oublog', array('id'));
        /// Launch add key oublog_links_oublog_fk
        $result = $result && add_key($table, $key);
        /// Changing nullability of field oubloginstancesid on table oublog_links to null
        $table = new XMLDBTable('oublog_links');
        $field = new XMLDBField('oubloginstancesid');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null, 'oublogid');
        /// Launch change of nullability for field oubloginstancesid
        $result = $result && change_field_notnull($table, $field);
    }
    if ($result && $oldversion < 2008022701) {
        /// Define field sortorder to be added to oublog_links
        $table = new XMLDBTable('oublog_links');
        $field = new XMLDBField('sortorder');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null, 'url');
        /// Launch add field sortorder
        $result = $result && add_field($table, $field);
    }
    if ($result && $oldversion < 2008030704) {
        /// Add search data
        require_once dirname(__FILE__) . '/../locallib.php';
        require_once dirname(__FILE__) . '/../lib.php';
        if (oublog_search_installed()) {
            global $db;
            $olddebug = $db->debug;
            $db->debug = false;
            print '<ul>';
            oublog_ousearch_update_all(true);
            print '</ul>';
            $db->debug = $olddebug;
        }
    }
    if ($result && $oldversion < 2008030707) {
        /// Define field lasteditedby to be added to oublog_posts
        $table = new XMLDBTable('oublog_posts');
        $field = new XMLDBField('lasteditedby');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null, 'visibility');
        /// Launch add field lasteditedby
        $result = $result && add_field($table, $field);
        /// Transfer edit data to lasteditedby
        $result = $result && execute_sql("\r\nUPDATE {$CFG->prefix}oublog_posts SET lasteditedby=(\r\n    SELECT userid FROM {$CFG->prefix}oublog_edits WHERE {$CFG->prefix}oublog_posts.id=postid ORDER BY id DESC LIMIT 1 \r\n) WHERE editsummary IS NOT NULL\r\n        ");
        /// Define field editsummary to be dropped from oublog_posts
        $table = new XMLDBTable('oublog_posts');
        $field = new XMLDBField('editsummary');
        /// Launch drop field editsummary
        $result = $result && drop_field($table, $field);
    }
    if ($result && $oldversion < 2008073000) {
        /// Define field completionposts to be added to oublog
        $table = new XMLDBTable('oublog');
        $field = new XMLDBField('completionposts');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '9', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'views');
        /// Launch add field completionposts
        $result = $result && add_field($table, $field);
        /// Define field completioncomments to be added to oublog
        $field = new XMLDBField('completioncomments');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '9', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'completionposts');
        /// Launch add field completioncomments
        $result = $result && add_field($table, $field);
    }
    if ($result && $oldversion < 2008121100) {
        // remove oublog:view from legacy:user roles
        $roles = get_roles_with_capability('moodle/legacy:user', CAP_ALLOW);
        foreach ($roles as $role) {
            $result = $result && unassign_capability('mod/oublog:view', $role->id);
        }
    }
    if ($result && $oldversion < 2009012600) {
        // Remove oublog:post and oublog:comment from legacy:user roles (if present)
        $roles = get_roles_with_capability('moodle/legacy:user', CAP_ALLOW);
        // Also from default user role if not already included
        if (!array_key_exists($CFG->defaultuserroleid, $roles)) {
            $roles[] = get_record('role', 'id', $CFG->defaultuserroleid);
        }
        print '<p><strong>Warning</strong>: The OU blog system capabilities 
            have changed (again) in order to fix bugs and clarify access control.
            The system will automatically remove the capabilities 
            <tt>mod/oublog:view</tt>, <tt>mod/oublog:post</tt>, and
            <tt>mod/oublog:comment</tt> from the following role(s):</p><ul>';
        foreach ($roles as $role) {
            print '<li>' . htmlspecialchars($role->name) . '</li>';
            $result = $result && unassign_capability('mod/oublog:view', $role->id);
            $result = $result && unassign_capability('mod/oublog:post', $role->id);
            $result = $result && unassign_capability('mod/oublog:comment', $role->id);
        }
        print '</ul><p>On a default Moodle installation this is the correct 
            behaviour. Personal blog access is now controlled via the 
            <tt>mod/oublog:viewpersonal</tt> and 
            <tt>mod/oublog:contributepersonal</tt>
            capabilities. These capabilities have been added to the 
            authenticated user role and any equivalent roles.</p>
            <p>If in doubt, please examine your role configuration with regard
            to these <tt>mod/oublog</tt> capabilities.</p>';
    }
    if ($result && $oldversion < 2010031200) {
        /// Define field completionposts to be added to oublog
        $table = new XMLDBTable('oublog');
        $field = new XMLDBField('individual');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '4', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'completioncomments');
        /// Launch add field completioncomments
        $result = $result && add_field($table, $field);
    }
    if ($result && $oldversion < 2010062400) {
        /// Define table oublog_comments_moderated to be created
        $table = new XMLDBTable('oublog_comments_moderated');
        /// Adding fields to table oublog_comments_moderated
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('postid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('title', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('message', XMLDB_TYPE_TEXT, 'medium', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('timeposted', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('authorname', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('ipaddress', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('approval', XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('timeset', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('secretkey', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, null, null);
        /// Adding keys to table oublog_comments_moderated
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addKeyInfo('postid', XMLDB_KEY_FOREIGN, array('postid'), 'oublog_posts', array('id'));
        /// Adding indexes to table oublog_comments_moderated
        $table->addIndexInfo('ipaddress', XMLDB_INDEX_NOTUNIQUE, array('ipaddress'));
        /// Launch create table for oublog_comments_moderated
        $result = $result && create_table($table);
        /// Changing nullability of field userid on table oublog_comments to null
        $table = new XMLDBTable('oublog_comments');
        $field = new XMLDBField('userid');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null, 'postid');
        /// Launch change of nullability for field userid
        $result = $result && change_field_notnull($table, $field);
        /// Define field authorname to be added to oublog_comments
        $field = new XMLDBField('authorname');
        $field->setAttributes(XMLDB_TYPE_CHAR, '255', null, null, null, null, null, null, 'timedeleted');
        /// Launch add field authorname
        $result = $result && add_field($table, $field);
        /// Define field authorip to be added to oublog_comments
        $field = new XMLDBField('authorip');
        $field->setAttributes(XMLDB_TYPE_CHAR, '255', null, null, null, null, null, null, 'authorname');
        /// Launch add field authorip
        $result = $result && add_field($table, $field);
        /// Define field timeapproved to be added to oublog_comments
        $field = new XMLDBField('timeapproved');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null, 'authorip');
        /// Launch add field timeapproved
        $result = $result && add_field($table, $field);
    }
    if ($result && $oldversion < 2010062500) {
        // Change the 'allow comments' value to 2 on global blog, if it is
        // currently set to 1
        $result = $result && set_field('oublog', 'allowcomments', 2, 'global', 1, 'allowcomments', 1);
    }
    if ($result && $oldversion < 2010063000) {
        /// Define index ipaddress (not unique) to be dropped form oublog_comments_moderated
        $table = new XMLDBTable('oublog_comments_moderated');
        $index = new XMLDBIndex('ipaddress');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('ipaddress'));
        /// Launch drop index authorip
        $result = $result && drop_index($table, $index);
        /// Rename field ipaddress on table oublog_comments_moderated to authorip
        $field = new XMLDBField('ipaddress');
        $field->setAttributes(XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, null, null, 'authorname');
        /// Launch rename field ipaddress
        $result = $result && rename_field($table, $field, 'authorip');
        /// Define index authorip (not unique) to be added to oublog_comments_moderated
        $table = new XMLDBTable('oublog_comments_moderated');
        $index = new XMLDBIndex('authorip');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('authorip'));
        /// Launch add index authorip
        $result = $result && add_index($table, $index);
    }
    if ($result && $oldversion < 2010070101) {
        // Make cron start working - in some servers I found there was
        // 9999999999 in the lastcron field which caused it never to run; not
        // very helpful
        $result = $result && set_field('modules', 'lastcron', 1, 'name', 'oublog');
    }
    return $result;
}
Esempio n. 29
0
function xmldb_block_curr_admin_upgrade($oldversion = 0)
{
    global $CFG, $THEME, $db;
    $result = true;
    if ($oldversion < 2009010102) {
        $context = get_context_instance(CONTEXT_SYSTEM, SITEID);
        if ($role = get_record('role', 'shortname', 'curriculumadmin')) {
            if ($role->name == 'Bundle Administrator') {
                $role->name = 'Curriculum Administrator';
                addslashes_object($role);
                update_record('role', $role);
            }
        }
        if (!empty($role->id)) {
            require_once dirname(__FILE__) . '/access.php';
            if (!empty($block_curr_admin_capabilities)) {
                foreach ($block_curr_admin_capabilities as $capname => $caprules) {
                    $result = $result && assign_capability($capname, CAP_ALLOW, $role->id, $context->id);
                }
            }
        }
    }
    if ($oldversion < 2009010103) {
        $table = new XMLDBTable('crlm_curriculum');
        $field = new XMLDBField('timetocomplete');
        $field->setAttributes(XMLDB_TYPE_CHAR, '64', NULL, XMLDB_NOTNULL, NULL, NULL, NULL, '0h, 0d, 0w, 0m, 0y', 'timemodified');
        $result = $result && add_field($table, $field);
        $field = new XMLDBField('frequency');
        $field->setAttributes(XMLDB_TYPE_CHAR, '64', NULL, XMLDB_NOTNULL, NULL, NULL, NULL, '0h, 0d, 0w, 0m, 0y', 'timetocomplete');
        $result = $result && add_field($table, $field);
    }
    if ($oldversion < 2009010104) {
        $table = new XMLDBTable('crlm_config');
        $table->comment = 'Curriculum management configuration values.';
        // fields
        $f = $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', false, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $f = $table->addFieldInfo('name', XMLDB_TYPE_CHAR, '255', null, false, null, null, null, null);
        $f = $table->addFieldInfo('value', XMLDB_TYPE_TEXT, 'medium', null, false, null, null, null, null);
        // PK and indexes
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addIndexInfo('name_ix', XMLDB_INDEX_UNIQUE, array('name'));
        $result = $result && create_table($table);
    }
    if ($oldversion < 2009010105) {
        $table = new XMLDBTable('crlm_coursetemplate');
        $table->comment = 'Course templates';
        // fields
        $f = $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', false, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $f = $table->addFieldInfo('courseid', XMLDB_TYPE_INTEGER, '10', false, XMLDB_NOTNULL, null, null, null, null);
        $f = $table->addFieldInfo('location', XMLDB_TYPE_CHAR, '255', null, false, null, null, null, null);
        $f = $table->addFieldInfo('templateclass', XMLDB_TYPE_CHAR, '255', null, false, null, null, null, null);
        // PK and indexes
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addIndexInfo('courseid_ix', XMLDB_INDEX_UNIQUE, array('courseid'));
        $result = $result && create_table($table);
    }
    if ($oldversion < 2009010106) {
        $table = new XMLDBTable('crlm_cluster_curriculum');
        $table->comment = 'Association between clusters and curricula';
        // fields
        $f = $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', false, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $f = $table->addFieldInfo('clusterid', XMLDB_TYPE_INTEGER, '10', null, true, null, null, null, null, 'id');
        $f->comment = 'Foreign key to cluster id';
        $f = $table->addFieldInfo('curriculumid', XMLDB_TYPE_INTEGER, '10', null, true, null, null, null, null, 'clusterid');
        $f->comment = 'Foreign key to curriculum id';
        // PK and indexes
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addIndexInfo('cluster_idx', XMLDB_INDEX_NOTUNIQUE, array('clusterid'));
        $result = $result && create_table($table);
    }
    if ($oldversion < 2009010108) {
        $table = new XMLDBTable('crlm_cluster_track');
        $table->comment = 'Association between clusters and tracks';
        // fields
        $f = $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', false, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $f = $table->addFieldInfo('clusterid', XMLDB_TYPE_INTEGER, '10', null, true, null, null, null, null, 'id');
        $f->comment = 'Foreign key to cluster id';
        $f = $table->addFieldInfo('trackid', XMLDB_TYPE_INTEGER, '10', null, true, null, null, null, null, 'clusterid');
        $f->comment = 'Foreign key to track id';
        $f = $table->addFieldInfo('autounenrol', XMLDB_TYPE_INTEGER, '1', null, true, null, null, null, null, 'trackid');
        $f->comment = 'Whether or not to remove a user from classes when removed from cluster';
        // PK and indexes
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addIndexInfo('cluster_idx', XMLDB_INDEX_NOTUNIQUE, array('clusterid'));
        $result = $result && create_table($table);
        $table = new XMLDBTable('crlm_usercluster');
        $f = new XMLDBField('autoenrol');
        $f->setAttributes(XMLDB_TYPE_INTEGER, '1', null, true, null, null, null, 1, 'clusterid');
        $f->comment = 'Whether users should be autoenrolled in tracks associated with this cluster.';
        $result = $result && add_field($table, $f);
    }
    if ($oldversion < 2009010109) {
        /// Define table crlm_class_moodle to be created
        $table = new XMLDBTable('crlm_class_moodle');
        /// Adding fields to table crlm_class_moodle
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('classid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('moodlecourseid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('enroltype', XMLDB_TYPE_INTEGER, '2', XMLDB_UNSIGNED, null, null, null, null, '0');
        $table->addFieldInfo('enrolplugin', XMLDB_TYPE_CHAR, '20', null, null, null, null, null, 'crlm');
        $table->addFieldInfo('timemodified', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        /// Adding keys to table crlm_class_moodle
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addKeyInfo('mdl_currclasmood_clamoo_uix', XMLDB_KEY_UNIQUE, array('classid', 'moodlecourseid'));
        /// Launch create table for crlm_class_moodle
        $result = $result && create_table($table);
    }
    if ($oldversion < 2009010110) {
        $table = new XMLDBTable('crlm_user_track');
        $table->comment = 'User enrolment in tracks';
        // fields
        $f = $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', false, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $f = $table->addFieldInfo('userid', XMLDB_TYPE_INTEGER, '10', null, true, null, null, null, null, 'id');
        $f->comment = 'Foreign key to user id';
        $f = $table->addFieldInfo('trackid', XMLDB_TYPE_INTEGER, '10', null, true, null, null, null, null, 'userid');
        $f->comment = 'Foreign key to track id';
        // PK and indexes
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $result = $result && create_table($table);
    }
    if ($result && $oldversion < 2009010112) {
        /// Define table crlm_notification_log to be created
        $table = new XMLDBTable('crlm_notification_log');
        /// Adding fields to table crlm_notification_log
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('event', XMLDB_TYPE_CHAR, '166', null, null, null, null, null, null);
        $table->addFieldInfo('instance', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('userid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('data', XMLDB_TYPE_CHAR, '255', null, null, null, null, null, null);
        $table->addFieldInfo('timecreated', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        /// Adding keys to table crlm_notification_log
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        /// Adding indexes to table crlm_notification_log
        $table->addIndexInfo('event_inst_user_ix', XMLDB_INDEX_NOTUNIQUE, array('event', 'instance', 'userid'));
        /// Launch create table for crlm_notification_log
        $result = $result && create_table($table);
    }
    if ($result && $oldversion < 2009010113) {
        /// Define index event_inst_user_ix (not unique) to be dropped from crlm_notification_log
        $table = new XMLDBTable('crlm_notification_log');
        $index = new XMLDBIndex('event_inst_user_ix');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('event', 'instance', 'userid'));
        /// Launch drop index event_inst_user_ix
        $result = $result && drop_index($table, $index);
        /// Define index event_inst_user_ix (not unique) to be added to crlm_notification_log
        $table = new XMLDBTable('crlm_notification_log');
        $index = new XMLDBIndex('event_inst_user_ix');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('userid', 'instance', 'event'));
        /// Launch add index event_inst_user_ix
        $result = $result && add_index($table, $index);
    }
    if ($result && $oldversion < 2009010114) {
        // Creating track table
        $table = new XMLDBTable('crlm_track');
        $table->comment = 'Track table';
        // fields
        $f = $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', false, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $f = $table->addFieldInfo('curid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $f = $table->addFieldInfo('idnumber', XMLDB_TYPE_CHAR, '100', null, XMLDB_NOTNULL, null, null, null);
        $f = $table->addFieldInfo('name', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, null);
        $f = $table->addFieldInfo('description', XMLDB_TYPE_TEXT, 'small', null, XMLDB_NOTNULL, null, null, null, null);
        $f = $table->addFieldInfo('startdate', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $f = $table->addFieldInfo('enddate', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $f = $table->addFieldInfo('timecreated', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $f = $table->addFieldInfo('timemodified', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        // PK and indexes
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addIndexInfo('track_curr_idx', XMLDB_INDEX_NOTUNIQUE, array('curid'));
        $result = $result && create_table($table);
        $table = new XMLDBTable('crlm_track_class');
        $table->comment = 'Track class table';
        $f = $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', false, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $f = $table->addFieldInfo('trackid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $f = $table->addFieldInfo('classid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $f = $table->addFieldInfo('courseid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $f = $table->addFieldInfo('requried', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $f = $table->addFieldInfo('autoenrol', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $f = $table->addFieldInfo('default', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $f = $table->addFieldInfo('timecreated', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $f = $table->addFieldInfo('timemodified', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addIndexInfo('trackid_idx', XMLDB_INDEX_NOTUNIQUE, array('trackid'));
        $table->addIndexInfo('track_classid_idx', XMLDB_INDEX_NOTUNIQUE, array('classid'));
        $table->addIndexInfo('track_courseid_idx', XMLDB_INDEX_NOTUNIQUE, array('courseid'));
        $result = $result && create_table($table);
    }
    if ($result && $oldversion < 2009010115) {
        /// Define table crlm_cluster_profile to be created
        $table = new XMLDBTable('crlm_cluster_profile');
        /// Adding fields to table crlm_cluster_profile
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('clusterid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('fieldid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('value', XMLDB_TYPE_TEXT, 'big', null, XMLDB_NOTNULL, null, null, null, null);
        /// Adding keys to table crlm_cluster_profile
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        /// Launch create table for crlm_cluster_profile
        $result = $result && create_table($table);
        /// Define table crlm_cluster_assignments to be created
        $table = new XMLDBTable('crlm_cluster_assignments');
        /// Adding fields to table crlm_cluster_assignments
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('clusterid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('userid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('plugin', XMLDB_TYPE_CHAR, '32', null, XMLDB_NOTNULL, null, null, null, null);
        /// Adding keys to table crlm_cluster_assignments
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        /// Launch create table for crlm_cluster_assignments
        $result = $result && create_table($table);
    }
    if ($result && $oldversion < 2009010116) {
        $table = new XMLDBTable('crlm_track_class');
        $field = new XMLDBField('default');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null, null, '0', 'autoenrol');
        $result = $result && drop_field($table, $field);
        $field = new XMLDBField('defaulttrack');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null, null, '0', 'autoenrol');
        $result = $result && add_field($table, $field);
    }
    if ($result && $oldversion < 2009010117) {
        /// Remove obsolete job code tables if they exist.
        $table = new XMLDBTable('crlm_jobcode_list');
        if (table_exists($table)) {
            drop_table($table);
        }
        $table = new XMLDBTable('crlm_curriculum_jobcode');
        if (table_exists($table)) {
            drop_table($table);
        }
    }
    if ($result && $oldversion < 2009010118) {
        /// Removing defaulttrack column from table
        $table = new XMLDBTable('crlm_track_class');
        $field = new XMLDBField('defaulttrack');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null, null, '0', 'autoenrol');
        $result = $result && drop_field($table, $field);
        /// Adding defaulttrack column to table
        $table = new XMLDBTable('crlm_track');
        $field = new XMLDBField('defaulttrack');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null, null, '0', 'enddate');
        $result = $result && add_field($table, $field);
    }
    if ($result && $oldversion < 2009010119) {
        /// Define field completed to be added to crlm_curriculum_assignment
        $table = new XMLDBTable('crlm_curriculum_assignment');
        $field = new XMLDBField('completed');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '2', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'curriculumid');
        /// Launch add field completed
        $result = $result && add_field($table, $field);
        /// Define field completiontime to be added to crlm_curriculum_assignment
        $field = new XMLDBField('timecompleted');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'completed');
        /// Launch add field completiontime
        $result = $result && add_field($table, $field);
        /// Define field credits to be added to crlm_curriculum_assignment
        $field = new XMLDBField('credits');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'timecompleted');
        /// Launch add field credits
        $result = $result && add_field($table, $field);
        /// Define field locked to be added to crlm_curriculum_assignment
        $table = new XMLDBTable('crlm_curriculum_assignment');
        $field = new XMLDBField('locked');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '2', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'credits');
        /// Launch add field locked
        $result = $result && add_field($table, $field);
        /// Define key mdl_currcurrassi_usecur_uix (unique) to be dropped from crlm_curriculum_assignment
        $key = new XMLDBKey('mdl_currcurrassi_usecur_uix');
        $key->setAttributes(XMLDB_KEY_UNIQUE, array('userid', 'curriculumid'));
        /// Launch drop key mdl_currcurrassi_usecur_uix
        $result = $result && drop_key($table, $key);
        /// Define index mdl_currcurrassi_usecurcom_ix (not unique) to be added to crlm_curriculum_assignment
        $index = new XMLDBIndex('mdl_currcurrassi_usecurcom_ix');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('userid', 'curriculumid', 'completed'));
        /// Launch add index mdl_currcurrassi_usecurcom_ix
        $result = $result && add_index($table, $index);
        /// Define index completed_ix (not unique) to be added to crlm_curriculum_assignment
        $index = new XMLDBIndex('completed_ix');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('completed'));
        /// Launch add index completed_ix
        $result = $result && add_index($table, $index);
    }
    if ($result && $oldversion < 2009010120) {
        /// Define field autoenrol to be added to crlm_cluster_assignments
        $table = new XMLDBTable('crlm_cluster_assignments');
        $field = new XMLDBField('autoenrol');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '1', 'plugin');
        /// Launch add field autoenrol
        $result = $result && add_field($table, $field);
    }
    if ($result && $oldversion < 2009010121) {
        if (!record_exists('mnet_application', 'name', 'java')) {
            $application = new stdClass();
            $application->name = 'java';
            $application->display_name = 'Java servlet';
            $application->xmlrpc_server_url = '/mnet/server';
            $application->sso_land_url = '/mnet/land.jsp';
            $result = $result && insert_record('mnet_application', $application, false);
        }
    }
    if ($result && $oldversion < 2009010122) {
        $table = new XMLDBTable('crlm_track_class');
        $field = new XMLDBField('requried');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'courseid');
        $result = $result && drop_field($table, $field);
    }
    if ($result && $oldversion < 2009010125) {
        $result = $result && execute_sql('CREATE OR REPLACE VIEW `courseNforums` AS select `f`.`id` AS `forumid`,concat(`c`.`shortname`,_utf8\' | \',`f`.`name`) AS `courseNforumname` from (`mdl_forum` `f` join `mdl_course` `c` on((`c`.`id` = `f`.`course`))) order by `c`.`shortname`,`f`.`name`');
    }
    if ($result && $oldversion < 2009010126) {
        $table = new XMLDBTable('crlm_cluster_curriculum');
        $table->comment = 'Association between clusters and curricula';
        // fields
        $f = $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', false, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $f = $table->addFieldInfo('clusterid', XMLDB_TYPE_INTEGER, '10', null, true, null, null, null, null, 'id');
        $f->comment = 'Foreign key to cluster id';
        $f = $table->addFieldInfo('curriculumid', XMLDB_TYPE_INTEGER, '10', null, true, null, null, null, null, 'clusterid');
        $f->comment = 'Foreign key to curriculum id';
        // PK and indexes
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addIndexInfo('cluster_idx', XMLDB_INDEX_NOTUNIQUE, array('clusterid'));
        $result = $result && (table_exists($table) || create_table($table));
        $table = new XMLDBTable('crlm_cluster_track');
        $table->comment = 'Association between clusters and tracks';
        // fields
        $f = $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', false, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $f = $table->addFieldInfo('clusterid', XMLDB_TYPE_INTEGER, '10', null, true, null, null, null, null, 'id');
        $f->comment = 'Foreign key to cluster id';
        $f = $table->addFieldInfo('trackid', XMLDB_TYPE_INTEGER, '10', null, true, null, null, null, null, 'clusterid');
        $f->comment = 'Foreign key to track id';
        $f = $table->addFieldInfo('autounenrol', XMLDB_TYPE_INTEGER, '1', null, true, null, null, null, null, 'trackid');
        $f->comment = 'Whether or not to remove a user from classes when removed from cluster';
        // PK and indexes
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->addIndexInfo('cluster_idx', XMLDB_INDEX_NOTUNIQUE, array('clusterid'));
        $result = $result && (table_exists($table) || create_table($table));
    }
    if ($result && $oldversion < 2009010127) {
        // fix silly typos
        $newtable = new XMLDBTable('crlm_user_track');
        $oldtable = new XMLDBTable('clrm_user_track');
        $result = $result && (table_exists($newtable) || rename_table($oldtable, 'crlm_user_track'));
        $oldtable = new XMLDBTable('clrm_cluster_track');
        $result = $result && (!table_exists($oldtable) || drop_table($oldtable));
        $oldtable = new XMLDBTable('clrm_cluster_curriculum');
        $result = $result && (!table_exists($oldtable) || drop_table($oldtable));
    }
    if ($result && $oldversion < 2009010128) {
        require_once $CFG->dirroot . '/curriculum/lib/lib.php';
        cm_migrate_moodle_users();
    }
    if ($result && $oldversion < 2009010131) {
        /// Get rid of any outdated cluster data we might have lying around.
        if ($CFG->dbfamily == 'postgres') {
            $sql = "DELETE FROM {$CFG->prefix}crlm_cluster_assignments\n                    WHERE id IN (\n                        SELECT ca.clusterid\n                        FROM {$CFG->prefix}crlm_cluster_assignments ca\n                        LEFT JOIN {$CFG->prefix}crlm_cluster c ON c.id = ca.clusterid\n                        WHERE c.id IS NULL\n                    )";
            $result = $result && execute_sql($sql);
            $sql = "DELETE FROM {$CFG->prefix}crlm_cluster_curriculum\n                    WHERE id IN (\n                        SELECT cc.clusterid\n                        FROM {$CFG->prefix}crlm_cluster_curriculum cc\n                        LEFT JOIN {$CFG->prefix}crlm_cluster c ON c.id = cc.clusterid\n                        WHERE c.id IS NULL\n                    )";
            $result = $result && execute_sql($sql);
            $sql = "DELETE FROM {$CFG->prefix}crlm_cluster_profile\n                    WHERE id IN (\n                        SELECT cp.clusterid\n                        FROM {$CFG->prefix}crlm_cluster_profile cp\n                        LEFT JOIN {$CFG->prefix}crlm_cluster c ON c.id = cp.clusterid\n                        WHERE c.id IS NULL\n                    )";
            $result = $result && execute_sql($sql);
            $sql = "DELETE FROM {$CFG->prefix}crlm_cluster_track\n                    WHERE id IN (\n                        SELECT ct.clusterid\n                        FROM {$CFG->prefix}crlm_cluster_track ct\n                        LEFT JOIN {$CFG->prefix}crlm_cluster c ON c.id = ct.clusterid\n                        WHERE c.id IS NULL\n                    )";
            $result = $result && execute_sql($sql);
            $sql = "DELETE FROM {$CFG->prefix}crlm_usercluster\n                    WHERE id IN (\n                        SELECT uc.clusterid\n                        FROM {$CFG->prefix}crlm_usercluster uc\n                        LEFT JOIN {$CFG->prefix}crlm_cluster c ON c.id = uc.clusterid\n                        WHERE c.id IS NULL\n                    )";
            $result = $result && execute_sql($sql);
        } else {
            $sql = "DELETE ca FROM {$CFG->prefix}crlm_cluster_assignments ca\n                    LEFT JOIN {$CFG->prefix}crlm_cluster c ON c.id = ca.clusterid\n                    WHERE c.id IS NULL";
            $result = $result && execute_sql($sql);
            $sql = "DELETE cc FROM {$CFG->prefix}crlm_cluster_curriculum cc\n                    LEFT JOIN {$CFG->prefix}crlm_cluster c ON c.id = cc.clusterid\n                    WHERE c.id IS NULL";
            $result = $result && execute_sql($sql);
            $sql = "DELETE cp FROM {$CFG->prefix}crlm_cluster_profile cp\n                    LEFT JOIN {$CFG->prefix}crlm_cluster c ON c.id = cp.clusterid\n                    WHERE c.id IS NULL";
            $result = $result && execute_sql($sql);
            $sql = "DELETE ct FROM {$CFG->prefix}crlm_cluster_track ct\n                    LEFT JOIN {$CFG->prefix}crlm_cluster c ON c.id = ct.clusterid\n                    WHERE c.id IS NULL";
            $result = $result && execute_sql($sql);
            $sql = "DELETE uc FROM {$CFG->prefix}crlm_usercluster uc\n                    LEFT JOIN {$CFG->prefix}crlm_cluster c ON c.id = uc.clusterid\n                    WHERE c.id IS NULL";
            $result = $result && execute_sql($sql);
        }
    }
    if ($result && $oldversion < 2009010133) {
        /// Define field leader to be added to crlm_cluster_assignments
        $table = new XMLDBTable('crlm_cluster_assignments');
        $field = new XMLDBField('leader');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'autoenrol');
        /// Launch add field leader
        $result = $result && add_field($table, $field);
        /// Define field leader to be added to crlm_usercluster
        $table = new XMLDBTable('crlm_usercluster');
        $field = new XMLDBField('leader');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'autoenrol');
        /// Launch add field leader
        $result = $result && add_field($table, $field);
    }
    if ($result && $oldversion < 2009010134) {
        /// Define field inactive to be added to crlm_user
        $table = new XMLDBTable('crlm_user');
        $field = new XMLDBField('inactive');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, null, null, null, null, '0', 'timemodified');
        /// Launch add field inactive
        $result = $result && add_field($table, $field);
    }
    if ($result && $oldversion < 2009010137) {
        $roleid = get_field('role', 'id', 'shortname', 'curriculumadmin');
        if (!empty($roleid)) {
            $context = get_context_instance(CONTEXT_SYSTEM, SITEID);
            require_once dirname(dirname(__FILE__)) . '/db/access.php';
            if (!empty($block_curr_admin_capabilities)) {
                foreach ($block_curr_admin_capabilities as $capname => $caprules) {
                    $result = $result && assign_capability($capname, CAP_ALLOW, $roleid, $context->id);
                }
            }
        }
    }
    if ($result && $oldversion < 2009010139) {
        global $CURMAN;
        require_once $CFG->dirroot . '/curriculum/lib/classmoodlecourse.class.php';
        $moodleclasses = moodle_get_classes();
        if (!empty($moodleclasses)) {
            foreach ($moodleclasses as $class) {
                $context = get_context_instance(CONTEXT_COURSE, $class->moodlecourseid);
                $sql = "DELETE cmce\n                    FROM {$CURMAN->db->prefix_table('user')} u\n                    JOIN {$CURMAN->db->prefix_table('role_assignments')} ra ON u.id = ra.userid\n                    JOIN {$CURMAN->db->prefix_table(STUTABLE)} cmce ON u.idnumber = cmce.user_idnumber\n                    WHERE ra.roleid NOT IN ({$CFG->gradebookroles})\n                    AND ra.contextid " . get_related_contexts_string($context) . "AND cmce.classid = {$class->classid}";
                $result = $result && execute_sql($sql);
            }
        }
    }
    if ($result && $oldversion < 2009010140) {
        delete_records('crlm_cluster_profile', 'fieldid', 0);
    }
    if ($result && $oldversion < 2009010141) {
        set_config('field_lock_idnumber', 'locked', 'auth/manual');
    }
    if ($result && $oldversion < 2009010143) {
        /// Define table crlm_wait_list to be created
        $table = new XMLDBTable('crlm_wait_list');
        /// Adding fields to table crlm_wait_list
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('classid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('userid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('timecreated', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('timemodified', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $table->addFieldInfo('position', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        /// Adding keys to table crlm_wait_list
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        /// Launch create table for crlm_wait_list
        $result = $result && create_table($table);
    }
    if ($result && $oldversion < 2009010145) {
        $table = new XMLDBTable('crlm_wait_list');
        $field = new XMLDBField('enrolmenttime');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $result = $result && add_field($table, $field);
    }
    if ($result && $oldversion < 2009010146) {
        // make sure trackclass's courseids are set
        // Let's just assume that all non-Postgres DB's use the same syntax as MySQL and call it a day.
        if ($CFG->dbfamily == 'postgres') {
            $sql = "UPDATE {$CFG->prefix}crlm_track_class\n                       SET courseid = c.courseid\n                      FROM {$CFG->prefix}crlm_track_class tc, {$CFG->prefix}crlm_class c\n                     WHERE tc.classid = c.id AND tc.courseid = 0";
        } else {
            $sql = "UPDATE {$CFG->prefix}crlm_track_class tc, {$CFG->prefix}crlm_class c\n                       SET tc.courseid = c.courseid\n                     WHERE tc.classid = c.id AND tc.courseid = 0";
        }
        $result = $result && execute_sql($sql);
    }
    if ($result && $oldversion < 2009010147) {
        // make sure all users have an idnumber
        $users = get_records('crlm_user', 'idnumber', '');
        foreach ($users as $user) {
            $user = addslashes_recursive($user);
            $mu = addslashes_recursive(get_record('user', 'username', $user->username));
            if (empty($mu->idnumber)) {
                $user->idnumber = $mu->idnumber = $mu->username;
                update_record('user', $mu);
                update_record('crlm_user', $user);
            } else {
                if (!get_record('crlm_user', 'idnumber', $mu->idnumber)) {
                    $user->idnumber = $mu->idnumber;
                    update_record('crlm_user', $user);
                } else {
                    if (!get_record('crlm_user', 'idnumber', $user->username)) {
                        $user->idnumber = $mu->idnumber;
                        update_record('crlm_user', $user);
                    }
                }
            }
        }
    }
    if ($result && $oldversion < 2009010149) {
        /// Define index clusterid_idx (not unique) to be added to crlm_cluster_assignments
        $table = new XMLDBTable('crlm_cluster_assignments');
        $index = new XMLDBIndex('clusterid_idx');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('clusterid'));
        /// Launch add index clusterid_idx
        $result = $result && add_index($table, $index);
        /// Define index userid_idx (not unique) to be added to crlm_cluster_assignments
        $table = new XMLDBTable('crlm_cluster_assignments');
        $index = new XMLDBIndex('userid_idx');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('userid'));
        /// Launch add index userid_idx
        $result = $result && add_index($table, $index);
        /// Define index clusterid_idx (not unique) to be added to crlm_cluster_profile
        $table = new XMLDBTable('crlm_cluster_profile');
        $index = new XMLDBIndex('clusterid_idx');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('clusterid'));
        /// Launch add index clusterid_idx
        $result = $result && add_index($table, $index);
    }
    if ($result && $oldversion < 2009010151) {
        $table = new XMLDBTable('crlm_curriculum');
        $field = new XMLDBField('priority');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $result = $result && add_field($table, $field);
    }
    if ($result && $oldversion < 2009010150) {
        require_once CURMAN_DIRLOCATION . '/lib/curriculumcourse.class.php';
        $sql = "SELECT cp.id, cp.courseid, cc.curriculumid\n                FROM {$CFG->prefix}crlm_course_prerequisite cp\n                JOIN {$CFG->prefix}crlm_curriculum_course cc ON cc.id = cp.curriculumcourseid\n                WHERE cp.courseid NOT IN (\n                    SELECT _cc.courseid\n                    FROM {$CFG->prefix}crlm_curriculum_course _cc\n                    WHERE _cc.curriculumid = cc.curriculumid\n                )";
        $students = get_records_sql($sql);
        $retval = 0;
        foreach ($students as $student) {
            $data = new object();
            $data->curriculumid = $student->curriculumid;
            $data->courseid = $student->courseid;
            $data->timeperiod = 'year';
            $currprereq = new curriculumcourse($data);
            $retval = $result && $currprereq->add();
        }
        $results = $retval;
    }
    if ($result && $oldversion < 2009103001) {
        $table = new XMLDBTable('crlm_curriculum');
        $field = new XMLDBField('priority');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0');
        $result = $result && add_field($table, $field);
        /// Define table context_levels to be created
        $table = new XMLDBTable('context_levels');
        /// Adding fields to table context_levels
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('name', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('component', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, null, null);
        /// Adding keys to table context_levels
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        /// Adding indexes to table context_levels
        $table->addIndexInfo('name', XMLDB_INDEX_NOTUNIQUE, array('name'));
        $table->addIndexInfo('component', XMLDB_INDEX_NOTUNIQUE, array('component'));
        /// Launch create table for context_levels
        $result = $result && create_table($table);
    }
    if ($result && $oldversion < 2009103003) {
        /// Define table crlm_field to be created
        $table = new XMLDBTable('crlm_field');
        /// Adding fields to table crlm_field
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('shortname', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('name', XMLDB_TYPE_TEXT, 'big', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('datatype', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('description', XMLDB_TYPE_TEXT, 'big', null, null, null, null, null, null);
        $table->addFieldInfo('categoryid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('sortorder', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('required', XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('locked', XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('visible', XMLDB_TYPE_INTEGER, '4', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('forceunique', XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('defaultdata', XMLDB_TYPE_TEXT, 'big', null, null, null, null, null, null);
        $table->addFieldInfo('params', XMLDB_TYPE_TEXT, 'big', null, null, null, null, null, null);
        $table->addFieldInfo('syncwithmoodle', XMLDB_TYPE_INTEGER, '2', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        /// Adding keys to table crlm_field
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        /// Adding indexes to table crlm_field
        $table->addIndexInfo('shortname_idx', XMLDB_INDEX_NOTUNIQUE, array('shortname'));
        /// Launch create table for crlm_field
        $result = $result && create_table($table);
        /// Define table crlm_field_category to be created
        $table = new XMLDBTable('crlm_field_category');
        /// Adding fields to table crlm_field_category
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('name', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('sortorder', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        /// Adding keys to table crlm_field_category
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        /// Launch create table for crlm_field_category
        $result = $result && create_table($table);
        /// Define table crlm_field_contextlevel to be created
        $table = new XMLDBTable('crlm_field_contextlevel');
        /// Adding fields to table crlm_field_contextlevel
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('fieldid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('contextlevel', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        /// Adding keys to table crlm_field_contextlevel
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        /// Launch create table for crlm_field_contextlevel
        $result = $result && create_table($table);
        /// Define table crlm_field_data to be created
        $table = new XMLDBTable('crlm_field_data');
        /// Adding fields to table crlm_field_data
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('contextid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('fieldid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('data', XMLDB_TYPE_TEXT, 'big', null, XMLDB_NOTNULL, null, null, null, null);
        /// Adding keys to table crlm_field_data
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        /// Adding indexes to table crlm_field_data
        $table->addIndexInfo('context_idx', XMLDB_INDEX_NOTUNIQUE, array('contextid'));
        /// Launch create table for crlm_field_data
        $result = $result && create_table($table);
    }
    //if ($result && $oldversion < 2010040501) {
    //    require_once($CFG->dirroot . '/blocks/curr_admin/lib.php');
    //    $result = $result && create_views(); // create with default prefix
    //    $result = $result && create_views(''); // create with no prefix
    //}
    if ($result && $oldversion < 2010040501) {
        $table = new XMLDBTable('crlm_field_map');
        /// Adding fields to table crlm_field_data
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('context', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('type', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('elis_field', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('data_field', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, null, null);
        /// Adding keys to table crlm_field_data
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        /// Launch create table for crlm_field_data
        $result = $result && create_table($table);
    }
    if ($result && $oldversion < 2010040501) {
        require_once "{$CFG->dirroot}/curriculum/lib/customfield.class.php";
        // make sure all ELIS users have a context
        update_capabilities('block/curr_admin');
        $ctxlvl = context_level_base::get_custom_context_level('user', 'block_curr_admin');
        $rs = get_recordset('crlm_user');
        while ($rec = rs_fetch_next_record($rs)) {
            get_context_instance($ctxlvl, $rec->id);
        }
        // sync profile fields
        $fields = field::get_for_context_level($ctxlvl);
        $fields = $fields ? $fields : array();
        require_once $CFG->dirroot . '/curriculum/plugins/moodle_profile/custom_fields.php';
        foreach ($fields as $field) {
            $fieldobj = new field($field);
            $sync_profile_field_with_moodle();
        }
    }
    if ($result && $oldversion < 2010040501) {
        require_once $CFG->dirroot . '/curriculum/lib/notifications.php';
        if (!empty($CFG->coursemanager)) {
            $context_course = CONTEXT_COURSE;
            $sql = "SELECT role_assignments.* FROM {$CFG->prefix}role_assignments role_assignments\n                    JOIN {$CFG->prefix}context context\n                    ON role_assignments.contextid = context.id\n                    WHERE role_assignments.roleid IN ({$CFG->coursemanager})\n                    AND context.contextlevel = {$context_course}";
            if ($records = get_records_sql($sql)) {
                foreach ($records as $record) {
                    cm_assign_instructor_from_mdl($record);
                }
            }
        }
    }
    if ($result && $oldversion < 2010063001) {
        $table = new XMLDBTable('crlm_curriculum_assignment');
        $field = new XMLDBField('user_idnumber');
        $result = $result && drop_field($table, $field);
        $table = new XMLDBTable('crlm_class_enrolment');
        $field = new XMLDBField('user_idnumber');
        $result = $result && drop_field($table, $field);
        $table = new XMLDBTable('crlm_class_instructor');
        $field = new XMLDBField('user_idnumber');
        $result = $result && drop_field($table, $field);
        $table = new XMLDBTable('crlm_class_attendance');
        $field = new XMLDBField('user_idnumber');
        $result = $result && drop_field($table, $field);
    }
    //if ($result && $oldversion < 2010063002) {
    //    require_once($CFG->dirroot . '/blocks/curr_admin/lib.php');
    //    $result = $result && create_views(); // create with default prefix
    //    $result = $result && create_views(''); // create with no prefix
    //}
    if ($result && $oldversion < 2010040505) {
        require_once $CFG->dirroot . '/curriculum/lib/lib.php';
        $result = $result && cm_notify_duplicate_user_info(true);
    }
    if ($result && $oldversion < 2010040506 && $oldversion >= 2010040501) {
        global $CFG, $CURMAN;
        // fix instructor assignments that were migrated incorrectly in the
        // 2010040501 upgrade code (ELIS-1171)
        // remove the obvious errors (instructors assigned to a non-existent class)
        $context_course = CONTEXT_COURSE;
        $sql = "DELETE\n                  FROM {$CFG->prefix}crlm_class_instructor\n                 WHERE NOT EXISTS (SELECT 'x' FROM {$CFG->prefix}crlm_class cmclass\n                                    WHERE cmclass.id = {$CFG->prefix}crlm_class_instructor.classid)";
        $result = $result && execute_sql($sql);
        // warn about other potentially incorrect instructor assignments
        require_once $CFG->dirroot . '/curriculum/lib/lib.php';
        cm_notify_incorrect_instructor_assignment(true);
        // make sure the correct assignments are added
        if (!empty($CFG->coursemanager)) {
            require_once $CFG->dirroot . '/curriculum/lib/notifications.php';
            $context_course = CONTEXT_COURSE;
            $sql = "SELECT role_assignments.* FROM {$CFG->prefix}role_assignments role_assignments\n                    JOIN {$CFG->prefix}context context\n                    ON role_assignments.contextid = context.id\n                    WHERE role_assignments.roleid IN ({$CFG->coursemanager})\n                    AND context.contextlevel = {$context_course}";
            if ($records = get_records_sql($sql)) {
                foreach ($records as $record) {
                    cm_assign_instructor_from_mdl($record);
                }
            }
        }
    }
    if ($result && $oldversion < 2010063002) {
        //get the class table
        $table = new XMLDBTable('crlm_class');
        //add the auto enrol enabled flag
        $field = new XMLDBField('enrol_from_waitlist');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, '0');
        $result = $result && add_field($table, $field);
    }
    if ($result && $oldversion < 2010063005) {
        /// Define table crlm_field_data to be dropped
        $table = new XMLDBTable('crlm_field_map');
        /// Launch drop table for crlm_field_data
        $result = $result && drop_table($table);
    }
    if ($result && $oldversion < 2010063006) {
        /// Define table crlm_field_data to be renamed to crlm_field_data_text
        $table = new XMLDBTable('crlm_field_data');
        /// Define index context_idx (not unique) to be dropped form crlm_field_data_text
        $index = new XMLDBIndex('context_idx');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('contextid'));
        /// Launch drop index context_idx
        $result = $result && drop_index($table, $index);
        /// Changing nullability of field contextid on table crlm_field_data_text to null
        $field = new XMLDBField('contextid');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null, 'id');
        /// Define index context_idx (not unique) to be added to crlm_field_data_text
        $index = new XMLDBIndex('context_idx');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('contextid'));
        /// Launch add index context_idx
        $result = $result && add_index($table, $index);
        /// Define index field_idx (not unique) to be added to crlm_field_data_text
        $index = new XMLDBIndex('field_idx');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('fieldid'));
        /// Launch add index field_idx
        $result = $result && add_index($table, $index);
        /// Launch change of nullability for field contextid
        $result = $result && change_field_notnull($table, $field);
        /// Launch rename table for crlm_field_data
        $result = $result && rename_table($table, 'crlm_field_data_text');
        /// Define table crlm_field_owner to be created
        $table = new XMLDBTable('crlm_field_owner');
        /// Adding fields to table crlm_field_owner
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('fieldid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('plugin', XMLDB_TYPE_CHAR, '255', null, null, null, null, null, null);
        $table->addFieldInfo('exclude', XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, null, null, null, null, '0');
        $table->addFieldInfo('params', XMLDB_TYPE_TEXT, 'big', null, null, null, null, null, null);
        /// Adding keys to table crlm_field_owner
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        /// Adding indexes to table crlm_field_owner
        $table->addIndexInfo('field_idx', XMLDB_INDEX_NOTUNIQUE, array('fieldid'));
        /// Launch create table for crlm_field_owner
        $result = $result && create_table($table);
        /// Define table crlm_field_category_context to be created
        $table = new XMLDBTable('crlm_field_category_context');
        /// Adding fields to table crlm_field_category_context
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('categoryid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('contextlevel', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        /// Adding keys to table crlm_field_category_context
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        /// Adding indexes to table crlm_field_category_context
        $table->addIndexInfo('contextlevel_idx', XMLDB_INDEX_NOTUNIQUE, array('contextlevel'));
        $table->addIndexInfo('category_idx', XMLDB_INDEX_NOTUNIQUE, array('categoryid'));
        /// Launch create table for crlm_field_category_context
        $result = $result && create_table($table);
        $usercontextid = context_level_base::get_custom_context_level('user', 'block_curr_admin');
        if ($usercontextid) {
            $sql = "INSERT INTO {$CFG->prefix}crlm_field_category_context\n                           (categoryid, contextlevel)\n                    SELECT id, {$usercontextid}\n                      FROM {$CFG->prefix}crlm_field_category";
            $result = $result && execute_sql($sql);
        }
        /// Define table crlm_field_data_int to be created
        $table = new XMLDBTable('crlm_field_data_int');
        /// Adding fields to table crlm_field_data_int
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('contextid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('fieldid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('data', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null, null, null);
        /// Adding keys to table crlm_field_data_int
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        /// Adding indexes to table crlm_field_data_int
        $table->addIndexInfo('context_idx', XMLDB_INDEX_NOTUNIQUE, array('contextid'));
        $table->addIndexInfo('field_idx', XMLDB_INDEX_NOTUNIQUE, array('fieldid'));
        /// Launch create table for crlm_field_data_int
        $result = $result && create_table($table);
        /// Define table crlm_field_data_num to be created
        $table = new XMLDBTable('crlm_field_data_num');
        /// Adding fields to table crlm_field_data_num
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('contextid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('fieldid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('data', XMLDB_TYPE_NUMBER, '15, 5', null, XMLDB_NOTNULL, null, null, null, null);
        /// Adding keys to table crlm_field_data_num
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        /// Adding indexes to table crlm_field_data_num
        $table->addIndexInfo('context_idx', XMLDB_INDEX_NOTUNIQUE, array('contextid'));
        $table->addIndexInfo('field_idx', XMLDB_INDEX_NOTUNIQUE, array('fieldid'));
        /// Launch create table for crlm_field_data_num
        $result = $result && create_table($table);
        /// Define table crlm_field_data_char to be created
        $table = new XMLDBTable('crlm_field_data_char');
        /// Adding fields to table crlm_field_data_char
        $table->addFieldInfo('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
        $table->addFieldInfo('contextid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, null, null);
        $table->addFieldInfo('fieldid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
        $table->addFieldInfo('data', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, null, null);
        /// Adding keys to table crlm_field_data_char
        $table->addKeyInfo('primary', XMLDB_KEY_PRIMARY, array('id'));
        /// Adding indexes to table crlm_field_data_char
        $table->addIndexInfo('context_idx', XMLDB_INDEX_NOTUNIQUE, array('contextid'));
        $table->addIndexInfo('field_idx', XMLDB_INDEX_NOTUNIQUE, array('fieldid'));
        /// Launch create table for crlm_field_data_char
        $result = $result && create_table($table);
        $records = get_records('crlm_field');
        if ($records) {
            // FIXME: set data type based on old data type
            foreach ($records as $record) {
                unset($record->name);
                unset($record->shortname);
                unset($record->description);
                $record->defaultdata = addslashes($record->defaultdata);
                if (isset($record->syncwithmoodle)) {
                    // make sure the crlm_field table hasn't been upgraded yet
                    switch ($record->syncwithmoodle) {
                        case 2:
                            // sync from Moodle
                            // create "moodle_profile" owner
                            if (!record_exists('crlm_field_owner', 'fieldid', $record->id, 'plugin', 'moodle_profile')) {
                                $owner = new stdClass();
                                $owner->fieldid = $record->id;
                                $owner->plugin = 'moodle_profile';
                                $owner->exclude = true;
                                $result = $result && insert_record('crlm_field_owner', $owner);
                            }
                            // create "manual" owner
                            if (!record_exists('crlm_field_owner', 'fieldid', $record->id, 'plugin', 'manual')) {
                                $owner = new stdClass();
                                $owner->fieldid = $record->id;
                                $owner->plugin = 'manual';
                                $owner->exclude = false;
                                $owner->params = array('edit_capability' => 'disabled');
                                if (!$record->visible) {
                                    $owner->params['view_capability'] = 'moodle/user:viewhiddendetails';
                                }
                                $owner->params = serialize($owner->params);
                                $result = $result && insert_record('crlm_field_owner', $owner);
                            }
                            $record->datatype = 'text';
                            break;
                        case 1:
                            // sync to Moodle
                            // create "moodle_profile" owner
                            if (!record_exists('crlm_field_owner', 'fieldid', $record->id, 'plugin', 'moodle_profile')) {
                                $owner = new stdClass();
                                $owner->fieldid = $record->id;
                                $owner->plugin = 'moodle_profile';
                                $owner->exclude = false;
                                $result = $result && insert_record('crlm_field_owner', $owner);
                            }
                            // NOTE: fall through
                        // NOTE: fall through
                        default:
                            // no sync or invalid user
                            // create "manual" owner
                            $controltype = $record->datatype;
                            $record->datatype = 'text';
                            if (!record_exists('crlm_field_owner', 'fieldid', $record->id, 'plugin', 'manual')) {
                                $owner = new stdClass();
                                $owner->fieldid = $record->id;
                                $owner->plugin = 'manual';
                                $owner->exclude = false;
                                $owner->params = array('control' => $controltype, 'required' => $record->required);
                                if ($record->locked) {
                                    $owner->params['edit_capability'] = 'moodle/user:update';
                                }
                                if (!$record->visible) {
                                    $owner->params['view_capability'] = 'moodle/user:viewhiddendetails';
                                }
                                if (!empty($record->params)) {
                                    $owner->params += unserialize($record->params);
                                }
                                switch ($controltype) {
                                    case 'checkbox':
                                        // legacy checkboxes are all boolean
                                        $record->datatype = 'bool';
                                        $data_recs = get_records('crlm_field_data_text', 'fieldid', $record->id);
                                        foreach ($data_recs as $data_rec) {
                                            delete_records('crlm_field_data_text', 'id', $data_rec->id);
                                            unset($data_rec->id);
                                            insert_record('crlm_field_data_int', $data_rec);
                                        }
                                        break;
                                    case 'menu':
                                        // menu items should be short text
                                        $record->datatype = 'char';
                                        $data_recs = get_records('crlm_field_data_text', 'fieldid', $record->id);
                                        foreach ($data_recs as $data_rec) {
                                            delete_records('crlm_field_data_text', 'id', $data_rec->id);
                                            unset($data_rec->id);
                                            insert_record('crlm_field_data_char', $data_rec);
                                        }
                                    case 'text':
                                        $owner->params['columns'] = $owner->params['size'];
                                        unset($owner->params['size']);
                                        break;
                                }
                                $owner->params = addslashes(serialize($owner->params));
                                $result = $result && insert_record('crlm_field_owner', $owner);
                            }
                            break;
                    }
                    $record->params = '';
                    $result = $result && update_record('crlm_field', $record);
                    if (!empty($record->defaultdata)) {
                        if (!record_exists_select('crlm_field_data_text', "fieldid = {$record->id} AND contextid IS NULL")) {
                            $defaultdata = new stdClass();
                            $defaultdata->fieldid = $record->id;
                            $defaultdata->data = $record->defaultdata;
                            $result = $result && insert_record('crlm_field_data_text', $defaultdata);
                        }
                    }
                }
            }
        }
        $table = new XMLDBTable('crlm_field');
        /// Define field required to be dropped from crlm_field
        $field = new XMLDBField('required');
        /// Launch drop field required
        $result = $result && drop_field($table, $field);
        /// Define field locked to be dropped from crlm_field
        $field = new XMLDBField('locked');
        /// Launch drop field locked
        $result = $result && drop_field($table, $field);
        /// Define field visible to be dropped from crlm_field
        $field = new XMLDBField('visible');
        /// Launch drop field visible
        $result = $result && drop_field($table, $field);
        /// Define field defaultdata to be dropped from crlm_field
        $field = new XMLDBField('defaultdata');
        /// Launch drop field defaultdata
        $result = $result && drop_field($table, $field);
        /// Define field syncwithmoodle to be dropped from crlm_field
        $field = new XMLDBField('syncwithmoodle');
        /// Launch drop field syncwithmoodle
        $result = $result && drop_field($table, $field);
        /// Define field multivalued to be added to crlm_field
        $field = new XMLDBField('multivalued');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, null, null, null, null, '0', 'sortorder');
        /// Launch add field multivalued
        $result = $result && add_field($table, $field);
    }
    if ($result && $oldversion < 2010063007) {
        // install.xml accidentally had the char table use an integer data field
        /// Changing type of field data on table crlm_field_data_char to char
        $table = new XMLDBTable('crlm_field_data_char');
        $field = new XMLDBField('data');
        $field->setAttributes(XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, null, null, 'fieldid');
        /// Launch change of type for field data
        $result = $result && change_field_type($table, $field);
    }
    if ($result && $oldversion < 2010063008) {
        $table = new XMLDBTable('crlm_cluster_curriculum');
        $field = new XMLDBField('autoenrol');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '1', 'curriculumid');
        $result = $result && add_field($table, $field);
        $table = new XMLDBTable('crlm_cluster_track');
        $field = new XMLDBField('autoenrol');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '1', 'trackid');
        $result = $result && add_field($table, $field);
        /// Define field parent to be added to crlm_cluster
        $table = new XMLDBTable('crlm_cluster');
        $field = new XMLDBField('parent');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'display');
        /// Launch add field parent
        $result = $result && add_field($table, $field);
        /// Define field depth to be added to crlm_cluster
        $field = new XMLDBField('depth');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '1', 'parent');
        /// Launch add field depth
        $result = $result && add_field($table, $field);
    }
    if ($result && $oldversion < 2010063013) {
        /*
         * Curriculum
         */
        $table = new XMLDBTable('crlm_curriculum');
        //name field
        $index = new XMLDBIndex('name_ix');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('name'));
        if (!index_exists($table, $index)) {
            $result = $result && add_index($table, $index);
        }
        /*
         * Course
         */
        $table = new XMLDBTable('crlm_course');
        //name field
        $index = new XMLDBIndex('name_ix');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('name'));
        if (!index_exists($table, $index)) {
            $result = $result && add_index($table, $index);
        }
        //credits field
        $index = new XMLDBIndex('credits_ix');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('credits'));
        if (!index_exists($table, $index)) {
            $result = $result && add_index($table, $index);
        }
        /*
         * Class
         */
        $table = new XMLDBTable('crlm_class');
        //idnumber field
        $index = new XMLDBIndex('idnumber_ix');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('idnumber'));
        if (!index_exists($table, $index)) {
            $result = $result && add_index($table, $index);
        }
        //enddate field
        $index = new XMLDBIndex('enddate_ix');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('enddate'));
        if (!index_exists($table, $index)) {
            $result = $result && add_index($table, $index);
        }
        /*
         * Class enrolment
         */
        $table = new XMLDBTable('crlm_class_enrolment');
        //completetime field
        $index = new XMLDBIndex('completetime_ix');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('completetime'));
        if (!index_exists($table, $index)) {
            $result = $result && add_index($table, $index);
        }
        //completestatusid field
        $index = new XMLDBIndex('completestatusid_ix');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('completestatusid'));
        if (!index_exists($table, $index)) {
            $result = $result && add_index($table, $index);
        }
        /*
         * CM user
         */
        $table = new XMLDBTable('crlm_user');
        //lastname field
        $index = new XMLDBIndex('lastname_ix');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('lastname'));
        if (!index_exists($table, $index)) {
            $result = $result && add_index($table, $index);
        }
        //firstname field
        $index = new XMLDBIndex('firstname_ix');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('firstname'));
        if (!index_exists($table, $index)) {
            $result = $result && add_index($table, $index);
        }
    }
    if ($result && $oldversion < 2010063015) {
        /// Define field autocreated to be added to crlm_class_moodle
        $table = new XMLDBTable('crlm_class_moodle');
        $field = new XMLDBField('autocreated');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '2', null, XMLDB_NOTNULL, null, null, null, '-1', 'timemodified');
        /// Launch add field autocreated
        $result = $result && add_field($table, $field);
    }
    if ($result && $oldversion < 2010111300) {
        $table = new XMLDBTable('crlm_curriculum_assignment');
        $field = new XMLDBField('timeexpired');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'timecompleted');
        // Launch add field multivalued
        $result = $result && add_field($table, $field);
    }
    if ($result && $oldversion < 2011050200) {
        /// Define index startdate_ix (not unique) to be added to crlm_class
        $table = new XMLDBTable('crlm_class');
        $index = new XMLDBIndex('startdate_ix');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('startdate'));
        $result = $result && add_index($table, $index);
        /// Define index enrolmenttime_ix (not unique) to be added to crlm_class_enrolment
        $table = new XMLDBTable('crlm_class_enrolment');
        $index = new XMLDBIndex('enrolmenttime_ix');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('enrolmenttime'));
        $result = $result && add_index($table, $index);
        /// Define index locked_ix (not unique) to be added to crlm_class_graded
        $table = new XMLDBTable('crlm_class_graded');
        $index = new XMLDBIndex('locked_ix');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('locked'));
        $result = $result && add_index($table, $index);
        /// Define index timegraded_ix (not unique) to be added to crlm_class_graded
        $table = new XMLDBTable('crlm_class_graded');
        $index = new XMLDBIndex('timegraded_ix');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('timegraded'));
        $result = $result && add_index($table, $index);
        /// Define index classid_ix (not unique) to be added to crlm_class_moodle
        $table = new XMLDBTable('crlm_class_moodle');
        $index = new XMLDBIndex('classid_ix');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('classid'));
        $result = $result && add_index($table, $index);
        /// Define index curriculumid_ix (not unique) to be added to crlm_cluster_curriculum
        $table = new XMLDBTable('crlm_cluster_curriculum');
        $index = new XMLDBIndex('curriculumid_ix');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('curriculumid'));
        $result = $result && add_index($table, $index);
        /// Define index fieldid_ix (not unique) to be added to crlm_cluster_profile
        $table = new XMLDBTable('crlm_cluster_profile');
        $index = new XMLDBIndex('fieldid_ix');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('fieldid'));
        $result = $result && add_index($table, $index);
        /// Define index trackid_ix (not unique) to be added to crlm_cluster_track
        $table = new XMLDBTable('crlm_cluster_track');
        $index = new XMLDBIndex('trackid_ix');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('trackid'));
        $result = $result && add_index($table, $index);
        /// Define index idnumber_ix (not unique) to be added to crlm_course_completion
        $table = new XMLDBTable('crlm_course_completion');
        $index = new XMLDBIndex('idnumber_ix');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('idnumber'));
        $result = $result && add_index($table, $index);
        /// Define index sortorder_ix (not unique) to be added to crlm_field
        $table = new XMLDBTable('crlm_field');
        $index = new XMLDBIndex('sortorder_ix');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('sortorder'));
        $result = $result && add_index($table, $index);
        /// Define index username_ix (not unique) to be added to crlm_user
        $table = new XMLDBTable('crlm_user');
        $index = new XMLDBIndex('username_ix');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('username'));
        $result = $result && add_index($table, $index);
        /// Define index inactive_ix (not unique) to be added to crlm_user
        $table = new XMLDBTable('crlm_user');
        $index = new XMLDBIndex('inactive_ix');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('inactive'));
        $result = $result && add_index($table, $index);
        /// Define index userid_ix (not unique) to be added to crlm_user_track
        $table = new XMLDBTable('crlm_user_track');
        $index = new XMLDBIndex('userid_ix');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('userid'));
        $result = $result && add_index($table, $index);
        /// Define index trackid_ix (not unique) to be added to crlm_user_track
        $table = new XMLDBTable('crlm_user_track');
        $index = new XMLDBIndex('trackid_ix');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('trackid'));
        $result = $result && add_index($table, $index);
        /// Define index classid_ix (not unique) to be added to crlm_wait_list
        $table = new XMLDBTable('crlm_wait_list');
        $index = new XMLDBIndex('classid_ix');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('classid'));
        $result = $result && add_index($table, $index);
        /// Define index userid_ix (not unique) to be added to crlm_wait_list
        $table = new XMLDBTable('crlm_wait_list');
        $index = new XMLDBIndex('userid_ix');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('userid'));
        $result = $result && add_index($table, $index);
    }
    if ($result && $oldversion < 2011050201) {
        // make sure that hours are within 24 hours
        $sql = "UPDATE {$CFG->prefix}crlm_class\n                   SET starttimehour = MOD(starttimehour, 24),\n                       endtimehour = MOD(endtimehour, 24)";
        $result = $result && execute_sql($sql);
    }
    if ($result && $oldversion < 2011050202) {
        /// Changing type of field credits on table crlm_class_enrolment to number
        $table = new XMLDBTable('crlm_class_enrolment');
        $field = new XMLDBField('credits');
        $field->setAttributes(XMLDB_TYPE_NUMBER, '10, 2', XMLDB_UNSIGNED, null, null, null, null, '0', 'grade');
        /// Launch change of type for field credits
        $result = $result && change_field_type($table, $field);
        /// Changing type of field credits on table crlm_curriculum_assignment to number
        $table = new XMLDBTable('crlm_curriculum_assignment');
        $field = new XMLDBField('credits');
        $field->setAttributes(XMLDB_TYPE_NUMBER, '10, 2', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'timeexpired');
        /// Launch change of type for field credits
        $result = $result && change_field_type($table, $field);
        /// Changing type of field reqcredits on table crlm_curriculum to number
        $table = new XMLDBTable('crlm_curriculum');
        $field = new XMLDBField('reqcredits');
        $field->setAttributes(XMLDB_TYPE_NUMBER, '10, 2', XMLDB_UNSIGNED, null, null, null, null, null, 'description');
        /// Launch change of type for field reqcredits
        $result = $result && change_field_type($table, $field);
        // update student class credits with decimal credits
        if ($CFG->dbfamily == 'postgres') {
            $sql = "UPDATE {$CFG->prefix}crlm_class_enrolment\n                       SET credits = CAST(c.credits AS numeric)\n                      FROM {$CFG->prefix}crlm_class_enrolment e, {$CFG->prefix}crlm_class cls, {$CFG->prefix}crlm_course c\n                     WHERE e.classid = cls.id\n                       AND cls.courseid = c.id\n                       AND e.credits = CAST(c.credits AS integer)";
        } else {
            $sql = "UPDATE {$CFG->prefix}crlm_class_enrolment e, {$CFG->prefix}crlm_class cls, {$CFG->prefix}crlm_course c\n                       SET e.credits = c.credits\n                     WHERE e.classid = cls.id\n                       AND cls.courseid = c.id\n                       AND e.credits = CAST(c.credits AS unsigned)";
        }
        $result = $result && execute_sql($sql);
    }
    if ($result && $oldversion < 2011050203) {
        //create a new column in the notification log table
        //to store the user who triggered the notification
        $table = new XMLDBTable('crlm_notification_log');
        $field = new XMLDBField('fromuserid');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, 0, 'userid');
        $field->comment = 'CM user id that triggered the notification.';
        $result = $result && add_field($table, $field);
        //populate data, assuming that the user who received the notification is the one whose
        //criteria spawned it
        //NOTE: this fudges data and the side-effect implies that if someone had received a notification
        //for another user and satisfy the same criteria for the same instance for themself, they will not
        //receive a similar notification
        $sql = "UPDATE {$CFG->prefix}crlm_notification_log\n                SET fromuserid = userid";
        $result = $result && execute_sql($sql);
        if ($result) {
            /// Define field certificatecode to be added to crlm_curriculum_assignment
            $table = new XMLDBTable('crlm_curriculum_assignment');
            $field = new XMLDBField('certificatecode');
            $field->setAttributes(XMLDB_TYPE_CHAR, '40', null, null, null, null, null, null, 'locked');
            /// Launch add field autocreated
            $result = $result && add_field($table, $field);
            /// Define index userid_ix (not unique) to be added to crlm_wait_list
            $index = new XMLDBIndex('certificatecode_ix');
            $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('certificatecode'));
            $result = $result && add_index($table, $index);
        }
    }
    if ($result && $oldversion < 2011050204) {
        $table = new XMLDBTable('crlm_notification_log');
        $index = new XMLDBIndex('event_inst_fuser_ix');
        $index->setAttributes(XMLDB_INDEX_NOTUNIQUE, array('fromuserid', 'instance', 'event'));
        $result = add_index($table, $index);
    }
    if ($result && $oldversion < 2011050205) {
        // Update the ELIS class enrolment grade value and completion score grade values so they store float
        // (decimal) values
        $table = new XMLDBTable('crlm_class_enrolment');
        $field = new XMLDBField('grade');
        $field->setAttributes(XMLDB_TYPE_NUMBER, '10', null, XMLDB_NOTNULL, null, null, null, '0');
        $field->setDecimals(5);
        $result = change_field_type($table, $field);
        $table = new XMLDBTable('crlm_class_graded');
        $result = $result && change_field_type($table, $field);
        /*
         * Find all of the completion grades that are synchronised from Moodle grade items that are not locked and
         * where the ELIS completion score does not match the value in the Moodle gradebook and delete those
         * completion scores so they can be re-synchronised from Moodle with the correct float values stored.
         */
        // Attempt to handle different DBs in the most efficient way possible
        if ($CFG->dbfamily == 'postgres') {
            $sql = "DELETE FROM {$CFG->prefix}crlm_class_graded\n                    WHERE id IN (\n                        SELECT ccg.id\n                        FROM mdl_crlm_user cu\n                        INNER JOIN {$CFG->prefix}crlm_class_enrolment cce ON cce.userid = cu.id\n                        INNER JOIN {$CFG->prefix}crlm_class_graded ccg ON (ccg.userid = cce.userid AND ccg.classid = cce.classid)\n                        INNER JOIN {$CFG->prefix}crlm_course_completion ccc ON ccc.id = ccg.completionid\n                        INNER JOIN {$CFG->prefix}crlm_class_moodle ccm ON ccm.classid = ccg.classid\n                        INNER JOIN {$CFG->prefix}user u ON u.idnumber = cu.idnumber\n                        INNER JOIN {$CFG->prefix}course c ON c.id = ccm.moodlecourseid\n                        INNER JOIN {$CFG->prefix}grade_items gi ON (gi.courseid = c.id AND gi.idnumber = ccc.idnumber)\n                        INNER JOIN {$CFG->prefix}grade_grades gg ON (gg.itemid = gi.id AND gg.userid = u.id)\n                        WHERE ccg.locked = 0\n                        AND ccc.idnumber != ''\n                        AND gi.itemtype != 'course'\n                        AND ccg.grade != gg.finalgrade\n                        AND gg.finalgrade IS NOT NULL\n                    )";
            $result = $result && execute_sql($sql);
        } else {
            if ($CFG->dbfamily == 'mysql') {
                $sql = "DELETE ccg\n                    FROM mdl_crlm_user cu\n                    INNER JOIN {$CFG->prefix}crlm_class_enrolment cce ON cce.userid = cu.id\n                    INNER JOIN {$CFG->prefix}crlm_class_graded ccg ON (ccg.userid = cce.userid AND ccg.classid = cce.classid)\n                    INNER JOIN {$CFG->prefix}crlm_course_completion ccc ON ccc.id = ccg.completionid\n                    INNER JOIN {$CFG->prefix}crlm_class_moodle ccm ON ccm.classid = ccg.classid\n                    INNER JOIN {$CFG->prefix}user u ON u.idnumber = cu.idnumber\n                    INNER JOIN {$CFG->prefix}course c ON c.id = ccm.moodlecourseid\n                    INNER JOIN {$CFG->prefix}grade_items gi ON (gi.courseid = c.id AND gi.idnumber = ccc.idnumber)\n                    INNER JOIN {$CFG->prefix}grade_grades gg ON (gg.itemid = gi.id AND gg.userid = u.id)\n                    WHERE ccg.locked = 0\n                    AND ccc.idnumber != ''\n                    AND gi.itemtype != 'course'\n                    AND ccg.grade != gg.finalgrade\n                    AND gg.finalgrade IS NOT NULL";
                $result = $result && execute_sql($sql);
            } else {
                $sql = "SELECT ccg.id, ccg.grade\n                    FROM mdl_crlm_user cu\n                    INNER JOIN {$CFG->prefix}crlm_class_enrolment cce ON cce.userid = cu.id\n                    INNER JOIN {$CFG->prefix}crlm_class_graded ccg ON (ccg.userid = cce.userid AND ccg.classid = cce.classid)\n                    INNER JOIN {$CFG->prefix}crlm_course_completion ccc ON ccc.id = ccg.completionid\n                    INNER JOIN {$CFG->prefix}crlm_class_moodle ccm ON ccm.classid = ccg.classid\n                    INNER JOIN {$CFG->prefix}user u ON u.idnumber = cu.idnumber\n                    INNER JOIN {$CFG->prefix}course c ON c.id = ccm.moodlecourseid\n                    INNER JOIN {$CFG->prefix}grade_items gi ON (gi.courseid = c.id AND gi.idnumber = ccc.idnumber)\n                    INNER JOIN {$CFG->prefix}grade_grades gg ON (gg.itemid = gi.id AND gg.userid = u.id)\n                    WHERE ccg.locked = 0\n                    AND ccc.idnumber != ''\n                    AND gi.itemtype != 'course'\n                    AND ccg.grade != gg.finalgrade\n                    AND gg.finalgrade IS NOT NULL";
                if ($rs = get_recordset_sql($sql)) {
                    while ($cg = rs_fetch_next_record($rs)) {
                        $result = $result && delete_records('crlm_class_graded', 'id', $cg->id);
                    }
                    rs_close($rs);
                }
            }
        }
        // Force a re-synchronization of ELIS class grade data
        require_once $CFG->dirroot . '/curriculum/lib/lib.php';
        cm_synchronize_moodle_class_grades();
    }
    if ($result && $oldversion < 2011050206) {
        /// Define table crlm_field_data to be dropped
        $table = new XMLDBTable('crlm_field_map');
        if (table_exists($table)) {
            /// Launch drop table for crlm_field_data
            $result = drop_table($table);
        }
    }
    if ($result && $oldversion < 2011050207) {
        // Delete duplicate class completion element grades
        $xmldbtable = new XMLDBTable('crlm_class_graded_temp');
        if (table_exists($xmldbtable)) {
            drop_table($xmldbtable);
        }
        // Create a temporary table
        $result = $result && execute_sql("CREATE TABLE {$CFG->prefix}crlm_class_graded_temp LIKE {$CFG->prefix}crlm_class_graded");
        // Store the unique values in the temporary table
        $sql = "INSERT INTO {$CFG->prefix}crlm_class_graded_temp\n                SELECT MAX(id) AS id, classid, userid, completionid, grade, locked, timegraded, timemodified\n                FROM {$CFG->prefix}crlm_class_graded\n                GROUP BY classid, userid, completionid, locked";
        $result = $result && execute_sql($sql);
        // Detect if there are still duplicates in the temporary table
        $sql = "SELECT COUNT(*) AS count, classid, userid, completionid, grade, locked, timegraded, timemodified\n                FROM {$CFG->prefix}crlm_class_graded_temp\n                GROUP BY classid, userid, completionid\n                ORDER BY count DESC, classid ASC, userid ASC, completionid ASC";
        if ($result && ($dupcount = get_record_sql($sql, true))) {
            if ($dupcount->count > 1) {
                if ($rs = get_recordset_sql($sql)) {
                    while ($result && ($dupe = rs_fetch_next_record($rs))) {
                        if ($dupe->count <= 1) {
                            continue;
                        }
                        $classid = $dupe->classid;
                        $userid = $dupe->userid;
                        $goodid = 0;
                        // The ID of the record we will keep
                        // Look for the earliest locked grade record for this user and keep that (if any are locked)
                        $sql2 = "SELECT id, grade, locked, timegraded\n                                 FROM mdl_crlm_class_graded\n                                 WHERE classid = {$classid}\n                                 AND userid = {$userid}\n                                 ORDER BY timegraded ASC";
                        if ($rs2 = get_recordset_sql($sql2)) {
                            while ($rec = rs_fetch_next_record($rs2)) {
                                // Store the last record ID just in case we need it for cleanup
                                $lastid = $rec->id;
                                // Don't bother looking at remaining records if we have found a record to keep
                                if (!empty($goodid)) {
                                    continue;
                                }
                                if ($rec->locked = 1) {
                                    $goodid = $rec->id;
                                }
                            }
                            rs_close($rs2);
                            // We need to make sure we have a record ID to keep, if we found no "complete" and locked
                            // records, let's just keep the last record we saw
                            if (empty($goodid)) {
                                $goodid = $lastid;
                            }
                            $select = 'classid = ' . $classid . ' AND userid = ' . $userid . ' AND id != ' . $goodid;
                        }
                        if (!empty($select)) {
                            $result = $result && delete_records_select('crlm_class_graded_temp', $select);
                        }
                    }
                }
            }
        }
        // Drop the real table
        $result = $result && execute_sql("DROP TABLE {$CFG->prefix}crlm_class_graded");
        // Replace the real table with the temporary table that now only contains unique values.
        $result = $result && execute_sql("ALTER TABLE {$CFG->prefix}crlm_class_graded_temp RENAME TO {$CFG->prefix}crlm_class_graded");
    }
    return $result;
}