Exemplo n.º 1
0
function xmldb_assignment_upgrade($oldversion) {
    global $CFG, $DB, $OUTPUT;

    $dbman = $DB->get_manager();


    // Moodle v2.2.0 release upgrade line
    // Put any upgrade step following this

    // Moodle v2.3.0 release upgrade line
    // Put any upgrade step following this


    if ($oldversion < 2012061701) {
        // Fixed/updated numfiles field in assignment_submissions table to count the actual
        // number of files has been uploaded when sendformarking is disabled
        upgrade_set_timeout(600);  // increase excution time for in large sites
        $fs = get_file_storage();

        // Fetch the moduleid for use in the course_modules table
        $moduleid = $DB->get_field('modules', 'id', array('name' => 'assignment'), MUST_EXIST);

        $selectcount = 'SELECT COUNT(s.id) ';
        $select      = 'SELECT s.id, cm.id AS cmid ';
        $query       = 'FROM {assignment_submissions} s
                        JOIN {assignment} a ON a.id = s.assignment
                        JOIN {course_modules} cm ON a.id = cm.instance AND cm.module = :moduleid
                        WHERE assignmenttype = :assignmenttype';

        $params = array('moduleid' => $moduleid, 'assignmenttype' => 'upload');

        $countsubmissions = $DB->count_records_sql($selectcount.$query, $params);
        $submissions = $DB->get_recordset_sql($select.$query, $params);

        $pbar = new progress_bar('assignmentupgradenumfiles', 500, true);
        $i = 0;
        foreach ($submissions as $sub) {
            $i++;
            if ($context = context_module::instance($sub->cmid)) {
                $sub->numfiles = count($fs->get_area_files($context->id, 'mod_assignment', 'submission', $sub->id, 'sortorder', false));
                $DB->update_record('assignment_submissions', $sub);
            }
            $pbar->update($i, $countsubmissions, "Counting files of submissions ($i/$countsubmissions)");
        }
        $submissions->close();

        // assignment savepoint reached
        upgrade_mod_savepoint(true, 2012061701, 'assignment');
    }

    // Moodle v2.4.0 release upgrade line
    // Put any upgrade step following this


    // Moodle v2.5.0 release upgrade line.
    // Put any upgrade step following this.


    return true;
}
Exemplo n.º 2
0
/**
 * xmldb_pcast_upgrade
 *
 * @param int $oldversion
 * @return bool
 */
function xmldb_pcast_upgrade($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
    ///     $result = result of "/lib/ddllib.php" function calls
    /// }
    /// RatingArea Upgrade
    if ($oldversion < 2011080700) {
        // rating.component and rating.ratingarea have now been added as mandatory fields.
        // Presently you can only rate data entries so component = 'mod_pcast' and ratingarea = 'episode'
        // for all ratings with a pcast context.
        // We want to update all ratings that belong to a glossary context and don't already have a
        // component set.
        // This could take a while reset upgrade timeout to 5 min
        upgrade_set_timeout(60 * 20);
        $sql = "UPDATE {rating}\n                SET component = 'mod_pcast', ratingarea = 'episode'\n                WHERE contextid IN (\n                    SELECT ctx.id\n                      FROM {context} ctx\n                      JOIN {course_modules} cm ON cm.id = ctx.instanceid\n                      JOIN {modules} m ON m.id = cm.module\n                     WHERE ctx.contextlevel = 70 AND\n                           m.name = 'pcast'\n                ) AND component = 'unknown'";
        $DB->execute($sql);
        upgrade_mod_savepoint(true, 2011080700, 'pcast');
    }
    /// Final return of upgrade result (true/false) to Moodle. Must be
    /// always the last line in the script
    return true;
}
Exemplo n.º 3
0
function xmldb_survey_upgrade($oldversion)
{
    global $CFG, $DB;
    $dbman = $DB->get_manager();
    //===== 1.9.0 upgrade line ======//
    if ($oldversion < 2009042002) {
        /// Define field introformat to be added to survey
        $table = new xmldb_table('survey');
        $field = new xmldb_field('introformat', XMLDB_TYPE_INTEGER, '4', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0', 'intro');
        /// Conditionally launch add field introformat
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        // conditionally migrate to html format in intro
        if ($CFG->texteditors !== 'textarea') {
            $rs = $DB->get_recordset('survey', array('introformat' => FORMAT_MOODLE), '', 'id,intro,introformat');
            foreach ($rs as $s) {
                $s->intro = text_to_html($s->intro, false, false, true);
                $s->introformat = FORMAT_HTML;
                $DB->update_record('survey', $s);
                upgrade_set_timeout();
            }
            $rs->close();
        }
        /// survey savepoint reached
        upgrade_mod_savepoint(true, 2009042002, 'survey');
    }
    return true;
}
Exemplo n.º 4
0
function page_20_migrate_candidate($candidate, $fs, $format)
{
    global $CFG, $DB;
    upgrade_set_timeout();
    $page = new object();
    $page->course = $candidate->course;
    $page->name = $candidate->name;
    $page->intro = $candidate->intro;
    $page->introformat = $candidate->introformat;
    $page->content = $candidate->alltext;
    $page->contentformat = $format;
    $page->revision = 1;
    $page->timemodified = time();
    // convert links to old course files - let the automigration do the actual job
    $usedfiles = array("{$CFG->wwwroot}/file.php/{$page->course}/", "{$CFG->wwwroot}/file.php?file=/{$page->course}/");
    $page->content = str_ireplace($usedfiles, '@@PLUGINFILE@@/', $page->content);
    if (strpos($page->content, '@@PLUGINFILE@@/') === false) {
        $page->legacyfiles = RESOURCELIB_LEGACYFILES_NO;
    } else {
        $page->legacyfiles = RESOURCELIB_LEGACYFILES_ACTIVE;
    }
    $options = array('printheading' => 0, 'printintro' => 0);
    if ($candidate->popup) {
        $page->display = RESOURCELIB_DISPLAY_POPUP;
        if ($candidate->popup) {
            $rawoptions = explode(',', $candidate->popup);
            foreach ($rawoptions as $rawoption) {
                list($name, $value) = explode('=', trim($rawoption), 2);
                if ($value > 0 and ($name == 'width' or $name == 'height')) {
                    $options['popup' . $name] = $value;
                    continue;
                }
            }
        }
    } else {
        $page->display = RESOURCELIB_DISPLAY_OPEN;
    }
    $page->displayoptions = serialize($options);
    $page = resource_migrate_to_module('page', $candidate, $page);
    // now try to migrate files from site files
    // noite: this can not work for html pages or files with other relatively linked files :-(
    $siteid = get_site()->id;
    if (preg_match_all("|{$CFG->wwwroot}/file.php(\\?file=)?/{$siteid}(/[^\\s'\"&\\?#]+)|", $page->content, $matches)) {
        $context = get_context_instance(CONTEXT_MODULE, $candidate->cmid);
        $sitecontext = get_context_instance(CONTEXT_COURSE, $siteid);
        $file_record = array('contextid' => $context->id, 'filearea' => 'page_content', 'itemid' => 0);
        $fs = get_file_storage();
        foreach ($matches[2] as $i => $sitefile) {
            if (!($file = $fs->get_file_by_hash(sha1($sitecontext->id . 'course_content0' . $sitefile)))) {
                continue;
            }
            try {
                $fs->create_file_from_storedfile($file_record, $file);
                $page->content = str_replace($matches[0][$i], '@@PLUGINFILE@@' . $sitefile, $page->content);
            } catch (Exception $x) {
            }
        }
        $DB->update_record('page', $page);
    }
}
Exemplo n.º 5
0
function xmldb_logstore_standard_upgrade($oldversion)
{
    global $CFG, $DB;
    $dbman = $DB->get_manager();
    // Moodle v2.8.0 release upgrade line.
    // Put any upgrade step following this.
    // Moodle v2.9.0 release upgrade line.
    // Put any upgrade step following this.
    // Moodle v3.0.0 release upgrade line.
    // Put any upgrade step following this.
    if ($oldversion < 2016041200) {
        // This could take a long time. Unfortunately, no way to know how long, and no way to do progress, so setting for 1 hour.
        upgrade_set_timeout(3600);
        // Define key contextid (foreign) to be added to logstore_standard_log.
        $table = new xmldb_table('logstore_standard_log');
        $key = new xmldb_key('contextid', XMLDB_KEY_FOREIGN, array('contextid'), 'context', array('id'));
        // Launch add key contextid.
        $dbman->add_key($table, $key);
        // Standard savepoint reached.
        upgrade_plugin_savepoint(true, 2016041200, 'logstore', 'standard');
    }
    // Moodle v3.1.0 release upgrade line.
    // Put any upgrade step following this.
    // Automatically generated Moodle v3.2.0 release upgrade line.
    // Put any upgrade step following this.
    return true;
}
Exemplo n.º 6
0
/**
 * Migrate folder module data from 1.9 resource_old table to new older table
 * @return void
 */
function folder_20_migrate()
{
    global $CFG, $DB;
    require_once "{$CFG->libdir}/filelib.php";
    require_once "{$CFG->dirroot}/course/lib.php";
    if (!file_exists("{$CFG->dirroot}/mod/resource/db/upgradelib.php")) {
        // bad luck, somebody deleted resource module
        return;
    }
    require_once "{$CFG->dirroot}/mod/resource/db/upgradelib.php";
    // create resource_old table and copy resource table there if needed
    if (!resource_20_prepare_migration()) {
        // no modules or fresh install
        return;
    }
    if (!($candidates = $DB->get_recordset('resource_old', array('type' => 'directory', 'migrated' => 0)))) {
        return;
    }
    $fs = get_file_storage();
    foreach ($candidates as $candidate) {
        upgrade_set_timeout();
        $directory = '/' . trim($candidate->reference, '/') . '/';
        $directory = str_replace('//', '/', $directory);
        $folder = new object();
        $folder->course = $candidate->course;
        $folder->name = $candidate->name;
        $folder->intro = $candidate->intro;
        $folder->introformat = $candidate->introformat;
        $folder->revision = 1;
        $folder->timemodified = time();
        if (!($folder = resource_migrate_to_module('folder', $candidate, $folder))) {
            continue;
        }
        // copy files in given directory, skip moddata and backups!
        $context = get_context_instance(CONTEXT_MODULE, $candidate->cmid);
        $coursecontext = get_context_instance(CONTEXT_COURSE, $candidate->course);
        $files = $fs->get_directory_files($coursecontext->id, 'course_content', 0, $directory, true, true);
        $file_record = array('contextid' => $context->id, 'filearea' => 'folder_content', 'itemid' => 0);
        foreach ($files as $file) {
            $path = $file->get_filepath();
            if (stripos($path, '/backupdata/') === 0 or stripos($path, '/moddata/') === 0) {
                // do not publish protected data!
                continue;
            }
            $relpath = substr($path, strlen($directory) - 1);
            // keep only subfolder paths
            $file_record['filepath'] = $relpath;
            $fs->create_file_from_storedfile($file_record, $file);
        }
    }
    $candidates->close();
    // clear all course modinfo caches
    rebuild_course_cache(0, true);
}
Exemplo n.º 7
0
/**
 * Upgrade code for the essay question type.
 * @param int $oldversion the version we are upgrading from.
 */
function xmldb_qtype_essay_upgrade($oldversion)
{
    global $CFG, $DB;
    $dbman = $DB->get_manager();
    // Moodle v2.2.0 release upgrade line
    // Put any upgrade step following this
    if ($oldversion < 2011102701) {
        $sql = "\n                  FROM {question} q\n                  JOIN {question_answers} qa ON qa.question = q.id\n\n                 WHERE q.qtype = 'essay'\n                   AND " . $DB->sql_isnotempty('question_answers', 'feedback', false, true);
        // In Moodle <= 2.0 essay had both question.generalfeedback and question_answers.feedback.
        // This was silly, and in Moodel >= 2.1 only question.generalfeedback. To avoid
        // dataloss, we concatenate question_answers.feedback onto the end of question.generalfeedback.
        $count = $DB->count_records_sql("\n                SELECT COUNT(1) {$sql}");
        if ($count) {
            $progressbar = new progress_bar('essay23', 500, true);
            $done = 0;
            $toupdate = $DB->get_recordset_sql("\n                    SELECT q.id,\n                           q.generalfeedback,\n                           q.generalfeedbackformat,\n                           qa.feedback,\n                           qa.feedbackformat\n                    {$sql}");
            foreach ($toupdate as $data) {
                $progressbar->update($done, $count, "Updating essay feedback ({$done}/{$count}).");
                upgrade_set_timeout(60);
                if ($data->generalfeedbackformat == $data->feedbackformat) {
                    $DB->set_field('question', 'generalfeedback', $data->generalfeedback . $data->feedback, array('id' => $data->id));
                } else {
                    $newdata = new stdClass();
                    $newdata->id = $data->id;
                    $newdata->generalfeedback = qtype_essay_convert_to_html($data->generalfeedback, $data->generalfeedbackformat) . qtype_essay_convert_to_html($data->feedback, $data->feedbackformat);
                    $newdata->generalfeedbackformat = FORMAT_HTML;
                    $DB->update_record('question', $newdata);
                }
            }
            $progressbar->update($count, $count, "Updating essay feedback complete!");
            $toupdate->close();
        }
        // Essay savepoint reached.
        upgrade_plugin_savepoint(true, 2011102701, 'qtype', 'essay');
    }
    if ($oldversion < 2011102702) {
        // Then we delete the old question_answers rows for essay questions.
        $DB->delete_records_select('question_answers', "question IN (SELECT id FROM {question} WHERE qtype = 'essay')");
        // Essay savepoint reached.
        upgrade_plugin_savepoint(true, 2011102702, 'qtype', 'essay');
    }
    // Moodle v2.3.0 release upgrade line
    // Put any upgrade step following this
    // Moodle v2.4.0 release upgrade line
    // Put any upgrade step following this
    return true;
}
Exemplo n.º 8
0
/**
 * @package mod
 * @subpackage adobeconnect
 * @author Akinsaya Delamarre (adelamarre@remote-learner.net)
 * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */
function xmldb_adobeconnect_upgrade($oldversion = 0)
{
    global $CFG, $DB;
    $dbman = $DB->get_manager();
    //===== 1.9.0 upgrade line ======//
    if ($oldversion < 2010120800) {
        /// Define field introformat to be added to survey
        $table = new xmldb_table('adobeconnect');
        $field = new xmldb_field('introformat', XMLDB_TYPE_INTEGER, '4', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0', 'intro');
        /// Conditionally launch add field introformat
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        // conditionally migrate to html format in intro
        if ($CFG->texteditors !== 'textarea') {
            $rs = $DB->get_recordset('adobeconnect', array('introformat' => FORMAT_MOODLE), '', 'id,intro,introformat');
            foreach ($rs as $s) {
                $s->intro = text_to_html($s->intro, false, false, true);
                $s->introformat = FORMAT_HTML;
                $DB->update_record('adobeconnect', $s);
                upgrade_set_timeout();
            }
            $rs->close();
        }
        /// adobeconnect savepoint reached
        upgrade_mod_savepoint(true, 2010120800, 'adobeconnect');
    }
    if ($oldversion < 2011041400) {
        // Changing precision of field meeturl on table adobeconnect to (60)
        $table = new xmldb_table('adobeconnect');
        $field = new xmldb_field('meeturl', XMLDB_TYPE_CHAR, '60', null, null, null, null, 'templatescoid');
        // Launch change of precision for field meeturl
        $dbman->change_field_precision($table, $field);
        // adobeconnect savepoint reached
        upgrade_mod_savepoint(true, 2011041400, 'adobeconnect');
    }
    return true;
}
/**
 * Migrate geogebra package to new area if found
 *
 * @return
 */
function geogebra_migrate_files()
{
    global $CFG, $DB;
    $fs = get_file_storage();
    $sqlfrom = "FROM {geogebra} j\n                JOIN {modules} m ON m.name = 'geogebra'\n                JOIN {course_modules} cm ON (cm.module = m.id AND cm.instance = j.id)";
    $count = $DB->count_records_sql("SELECT COUNT('x') {$sqlfrom}");
    $rs = $DB->get_recordset_sql("SELECT j.id, j.url, j.course, cm.id AS cmid {$sqlfrom} ORDER BY j.course, j.id");
    if ($rs->valid()) {
        $pbar = new progress_bar('migrategeogebrafiles', 500, true);
        $i = 0;
        foreach ($rs as $geogebra) {
            $i++;
            upgrade_set_timeout(180);
            // set up timeout, may also abort execution
            $pbar->update($i, $count, "Migrating geogebra files - {$i}/{$count}.");
            $context = context_module::instance($geogebra->cmid);
            $coursecontext = context_course::instance($geogebra->course);
            if (!geogebra_is_valid_external_url($geogebra->url)) {
                // first copy local files if found - do not delete in case they are shared ;-)
                $geogebrafile = clean_param($geogebra->url, PARAM_PATH);
                $pathnamehash = sha1("/{$coursecontext->id}/course/legacy/0/{$geogebrafile}");
                if ($file = $fs->get_file_by_hash($pathnamehash)) {
                    $file_record = array('contextid' => $context->id, 'component' => 'mod_geogebra', 'filearea' => 'content', 'itemid' => 0, 'filepath' => '/');
                    try {
                        $fs->create_file_from_storedfile($file_record, $file);
                    } catch (Exception $x) {
                        // ignore any errors, we can not do much anyway
                    }
                    $geogebra->url = $pathnamehash;
                } else {
                    $geogebra->url = '';
                }
                $DB->update_record('geogebra', $geogebra);
            }
        }
    }
    $rs->close();
}
Exemplo n.º 10
0
/**
 * Update all grades in gradebook.
 * @global object
 */
function forum_upgrade_grades() {
    global $DB;

    $sql = "SELECT COUNT('x')
              FROM {forum} f, {course_modules} cm, {modules} m
             WHERE m.name='forum' AND m.id=cm.module AND cm.instance=f.id";
    $count = $DB->count_records_sql($sql);

    $sql = "SELECT f.*, cm.idnumber AS cmidnumber, f.course AS courseid
              FROM {forum} f, {course_modules} cm, {modules} m
             WHERE m.name='forum' AND m.id=cm.module AND cm.instance=f.id";
    $rs = $DB->get_recordset_sql($sql);
    if ($rs->valid()) {
        $pbar = new progress_bar('forumupgradegrades', 500, true);
        $i=0;
        foreach ($rs as $forum) {
            $i++;
            upgrade_set_timeout(60*5); // set up timeout, may also abort execution
            forum_update_grades($forum, 0, false);
            $pbar->update($i, $count, "Updating Forum grades ($i/$count).");
        }
    }
    $rs->close();
}
/**
 * Migrate legacy files in intro and chapters
 * @return void
 */
function mod_giportfolio_migrate_all_areas()
{
    global $DB;
    $rsgiportfolios = $DB->get_recordset('giportfolio');
    foreach ($rsgiportfolios as $giportfolio) {
        upgrade_set_timeout(360);
        // Set up timeout, may also abort execution.
        $cm = get_coursemodule_from_instance('giportfolio', $giportfolio->id);
        $context = context_module::instance($cm->id);
        mod_giportfolio_migrate_area($giportfolio, 'intro', 'giportfolio', $giportfolio->course, $context, 'mod_giportfolio', 'intro', 0);
        $rschapters = $DB->get_recordset('giportfolio_chapters', array('giportfolioid' => $giportfolio->id));
        foreach ($rschapters as $chapter) {
            mod_giportfolio_migrate_area($chapter, 'content', 'giportfolio_chapters', $giportfolio->course, $context, 'mod_giportfolio', 'chapter', $chapter->id);
        }
        $rschapters->close();
    }
    $rsgiportfolios->close();
}
Exemplo n.º 12
0
/**
 * Update all grades in gradebook.
 */
function assignment_upgrade_grades() {
    global $DB;

    $sql = "SELECT COUNT('x')
              FROM {assignment} a, {course_modules} cm, {modules} m
             WHERE m.name='assignment' AND m.id=cm.module AND cm.instance=a.id";
    $count = $DB->count_records_sql($sql);

    $sql = "SELECT a.*, cm.idnumber AS cmidnumber, a.course AS courseid
              FROM {assignment} a, {course_modules} cm, {modules} m
             WHERE m.name='assignment' AND m.id=cm.module AND cm.instance=a.id";
    $rs = $DB->get_recordset_sql($sql);
    if ($rs->valid()) {
        // too much debug output
        $pbar = new progress_bar('assignmentupgradegrades', 500, true);
        $i=0;
        foreach ($rs as $assignment) {
            $i++;
            upgrade_set_timeout(60*5); // set up timeout, may also abort execution
            assignment_update_grades($assignment);
            $pbar->update($i, $count, "Updating Assignment grades ($i/$count).");
        }
        upgrade_set_timeout(); // reset to default timeout
    }
    $rs->close();
}
Exemplo n.º 13
0
/**
 * Update all grades in gradebook.
 *
 * @global object
 */
function data_upgrade_grades() {
    global $DB;

    $sql = "SELECT COUNT('x')
              FROM {data} d, {course_modules} cm, {modules} m
             WHERE m.name='data' AND m.id=cm.module AND cm.instance=d.id";
    $count = $DB->count_records_sql($sql);

    $sql = "SELECT d.*, cm.idnumber AS cmidnumber, d.course AS courseid
              FROM {data} d, {course_modules} cm, {modules} m
             WHERE m.name='data' AND m.id=cm.module AND cm.instance=d.id";
    $rs = $DB->get_recordset_sql($sql);
    if ($rs->valid()) {
        // too much debug output
        $pbar = new progress_bar('dataupgradegrades', 500, true);
        $i=0;
        foreach ($rs as $data) {
            $i++;
            upgrade_set_timeout(60*5); // set up timeout, may also abort execution
            data_update_grades($data, 0, false);
            $pbar->update($i, $count, "Updating Database grades ($i/$count).");
        }
    }
    $rs->close();
}
Exemplo n.º 14
0
/**
 * Main upgrade tasks to be executed on Moodle version bump
 *
 * This function is automatically executed after one bump in the Moodle core
 * version is detected. It's in charge of performing the required tasks
 * to raise core from the previous version to the next one.
 *
 * It's a collection of ordered blocks of code, named "upgrade steps",
 * each one performing one isolated (from the rest of steps) task. Usually
 * tasks involve creating new DB objects or performing manipulation of the
 * information for cleanup/fixup purposes.
 *
 * Each upgrade step has a fixed structure, that can be summarised as follows:
 *
 * if ($oldversion < XXXXXXXXXX.XX) {
 *     // Explanation of the update step, linking to issue in the Tracker if necessary
 *     upgrade_set_timeout(XX); // Optional for big tasks
 *     // Code to execute goes here, usually the XMLDB Editor will
 *     // help you here. See {@link http://docs.moodle.org/dev/XMLDB_editor}.
 *     upgrade_main_savepoint(true, XXXXXXXXXX.XX);
 * }
 *
 * All plugins within Moodle (modules, blocks, reports...) support the existence of
 * their own upgrade.php file, using the "Frankenstyle" component name as
 * defined at {@link http://docs.moodle.org/dev/Frankenstyle}, for example:
 *     - {@link xmldb_page_upgrade($oldversion)}. (modules don't require the plugintype ("mod_") to be used.
 *     - {@link xmldb_auth_manual_upgrade($oldversion)}.
 *     - {@link xmldb_workshopform_accumulative_upgrade($oldversion)}.
 *     - ....
 *
 * In order to keep the contents of this file reduced, it's allowed to create some helper
 * functions to be used here in the {@link upgradelib.php} file at the same directory. Note
 * that such a file must be manually included from upgrade.php, and there are some restrictions
 * about what can be used within it.
 *
 * For more information, take a look to the documentation available:
 *     - Data definition API: {@link http://docs.moodle.org/dev/Data_definition_API}
 *     - Upgrade API: {@link http://docs.moodle.org/dev/Upgrade_API}
 *
 * @param int $oldversion
 * @return bool always true
 */
function xmldb_main_upgrade($oldversion)
{
    global $CFG, $USER, $DB, $OUTPUT, $SITE;
    require_once $CFG->libdir . '/db/upgradelib.php';
    // Core Upgrade-related functions
    $dbman = $DB->get_manager();
    // loads ddl manager and xmldb classes
    if ($oldversion < 2011120500) {
        // just in case somebody hacks upgrade scripts or env, we really can not continue
        echo "You need to upgrade to 2.2.x first!\n";
        exit(1);
        // Note this savepoint is 100% unreachable, but needed to pass the upgrade checks
        upgrade_main_savepoint(true, 2011120500);
    }
    // Moodle v2.2.0 release upgrade line
    // Put any upgrade step following this
    if ($oldversion < 2011120500.02) {
        upgrade_set_timeout(60 * 20);
        // This may take a while
        // MDL-28180. Some missing restrictions in certain backup & restore operations
        // were causing incorrect duplicates in the course_completion_aggr_methd table.
        // This upgrade step takes rid of them.
        $sql = 'SELECT course, criteriatype, MIN(id) AS minid
                  FROM {course_completion_aggr_methd}
              GROUP BY course, criteriatype
                HAVING COUNT(*) > 1';
        $duprs = $DB->get_recordset_sql($sql);
        foreach ($duprs as $duprec) {
            // We need to handle NULLs in criteriatype diferently
            if (is_null($duprec->criteriatype)) {
                $where = 'course = ? AND criteriatype IS NULL AND id > ?';
                $params = array($duprec->course, $duprec->minid);
            } else {
                $where = 'course = ? AND criteriatype = ? AND id > ?';
                $params = array($duprec->course, $duprec->criteriatype, $duprec->minid);
            }
            $DB->delete_records_select('course_completion_aggr_methd', $where, $params);
        }
        $duprs->close();
        // Main savepoint reached
        upgrade_main_savepoint(true, 2011120500.02);
    }
    if ($oldversion < 2011120500.03) {
        // Changing precision of field value on table user_preferences to (1333)
        $table = new xmldb_table('user_preferences');
        $field = new xmldb_field('value', XMLDB_TYPE_CHAR, '1333', null, XMLDB_NOTNULL, null, null, 'name');
        // Launch change of precision for field value
        $dbman->change_field_precision($table, $field);
        // Main savepoint reached
        upgrade_main_savepoint(true, 2011120500.03);
    }
    if ($oldversion < 2012020200.03) {
        // Define index rolecontext (not unique) to be added to role_assignments
        $table = new xmldb_table('role_assignments');
        $index = new xmldb_index('rolecontext', XMLDB_INDEX_NOTUNIQUE, array('roleid', 'contextid'));
        // Conditionally launch add index rolecontext
        if (!$dbman->index_exists($table, $index)) {
            $dbman->add_index($table, $index);
        }
        // Define index usercontextrole (not unique) to be added to role_assignments
        $index = new xmldb_index('usercontextrole', XMLDB_INDEX_NOTUNIQUE, array('userid', 'contextid', 'roleid'));
        // Conditionally launch add index usercontextrole
        if (!$dbman->index_exists($table, $index)) {
            $dbman->add_index($table, $index);
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2012020200.03);
    }
    if ($oldversion < 2012020200.06) {
        // Previously we always allowed users to override their email address via the messaging system
        // We have now added a setting to allow admins to turn this this ability on and off
        // While this setting defaults to 0 (off) we're setting it to 1 (on) to maintain the behaviour for upgrading sites
        set_config('messagingallowemailoverride', 1);
        // Main savepoint reached
        upgrade_main_savepoint(true, 2012020200.06);
    }
    if ($oldversion < 2012021700.01) {
        // Changing precision of field uniquehash on table post to 255
        $table = new xmldb_table('post');
        $field = new xmldb_field('uniquehash', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, 'content');
        // Launch change of precision for field uniquehash
        $dbman->change_field_precision($table, $field);
        // Main savepoint reached
        upgrade_main_savepoint(true, 2012021700.01);
    }
    if ($oldversion < 2012021700.02) {
        // Somewhere before 1.9 summary and content column in post table were not null. In 1.9+
        // not null became false.
        $columns = $DB->get_columns('post');
        // Fix discrepancies in summary field after upgrade from 1.9
        if (array_key_exists('summary', $columns) && $columns['summary']->not_null != false) {
            $table = new xmldb_table('post');
            $summaryfield = new xmldb_field('summary', XMLDB_TYPE_TEXT, 'big', null, null, null, null, 'subject');
            if ($dbman->field_exists($table, $summaryfield)) {
                $dbman->change_field_notnull($table, $summaryfield);
            }
        }
        // Fix discrepancies in content field after upgrade from 1.9
        if (array_key_exists('content', $columns) && $columns['content']->not_null != false) {
            $table = new xmldb_table('post');
            $contentfield = new xmldb_field('content', XMLDB_TYPE_TEXT, 'big', null, null, null, null, 'summary');
            if ($dbman->field_exists($table, $contentfield)) {
                $dbman->change_field_notnull($table, $contentfield);
            }
        }
        upgrade_main_savepoint(true, 2012021700.02);
    }
    // The ability to backup user (private) files is out completely - MDL-29248
    if ($oldversion < 2012030100.01) {
        unset_config('backup_general_user_files', 'backup');
        unset_config('backup_general_user_files_locked', 'backup');
        unset_config('backup_auto_user_files', 'backup');
        upgrade_main_savepoint(true, 2012030100.01);
    }
    if ($oldversion < 2012030100.02) {
        // migrate all numbers to signed - it should be safe to interrupt this and continue later
        upgrade_mysql_fix_unsigned_columns();
        // Main savepoint reached
        upgrade_main_savepoint(true, 2012030100.02);
    }
    if ($oldversion < 2012030900.01) {
        // migrate all texts and binaries to big size - it should be safe to interrupt this and continue later
        upgrade_mysql_fix_lob_columns();
        // Main savepoint reached
        upgrade_main_savepoint(true, 2012030900.01);
    }
    if ($oldversion < 2012031500.01) {
        // Upgrade old course_allowed_modules data to be permission overrides.
        if ($CFG->restrictmodulesfor === 'all') {
            $courses = $DB->get_records_menu('course', array(), 'id', 'id, 1');
        } else {
            if ($CFG->restrictmodulesfor === 'requested') {
                $courses = $DB->get_records_menu('course', array('retrictmodules' => 1), 'id', 'id, 1');
            } else {
                $courses = array();
            }
        }
        if (!$dbman->table_exists('course_allowed_modules')) {
            // Upgrade must already have been run on this server. This might happen,
            // for example, during development of these changes.
            $courses = array();
        }
        $modidtoname = $DB->get_records_menu('modules', array(), 'id', 'id, name');
        $coursecount = count($courses);
        if ($coursecount) {
            $pbar = new progress_bar('allowedmods', 500, true);
            $transaction = $DB->start_delegated_transaction();
        }
        $i = 0;
        foreach ($courses as $courseid => $notused) {
            $i += 1;
            upgrade_set_timeout(60);
            // 1 minute per course should be fine.
            $allowedmoduleids = $DB->get_records_menu('course_allowed_modules', array('course' => $courseid), 'module', 'module, 1');
            if (empty($allowedmoduleids)) {
                // This seems to be the best match for backwards compatibility,
                // not necessarily with the old code in course_allowed_module function,
                // but with the code that used to be in the coures settings form.
                $allowedmoduleids = explode(',', $CFG->defaultallowedmodules);
                $allowedmoduleids = array_combine($allowedmoduleids, $allowedmoduleids);
            }
            $context = context_course::instance($courseid);
            list($roleids) = get_roles_with_cap_in_context($context, 'moodle/course:manageactivities');
            list($managerroleids) = get_roles_with_cap_in_context($context, 'moodle/site:config');
            foreach ($managerroleids as $roleid) {
                unset($roleids[$roleid]);
            }
            foreach ($modidtoname as $modid => $modname) {
                if (isset($allowedmoduleids[$modid])) {
                    // Module is allowed, no worries.
                    continue;
                }
                $capability = 'mod/' . $modname . ':addinstance';
                foreach ($roleids as $roleid) {
                    assign_capability($capability, CAP_PREVENT, $roleid, $context);
                }
            }
            $pbar->update($i, $coursecount, "Upgrading legacy course_allowed_modules data - {$i}/{$coursecount}.");
        }
        if ($coursecount) {
            $transaction->allow_commit();
        }
        upgrade_main_savepoint(true, 2012031500.01);
    }
    if ($oldversion < 2012031500.02) {
        // Define field retrictmodules to be dropped from course
        $table = new xmldb_table('course');
        $field = new xmldb_field('restrictmodules');
        // Conditionally launch drop field requested
        if ($dbman->field_exists($table, $field)) {
            $dbman->drop_field($table, $field);
        }
        upgrade_main_savepoint(true, 2012031500.02);
    }
    if ($oldversion < 2012031500.03) {
        // Define table course_allowed_modules to be dropped
        $table = new xmldb_table('course_allowed_modules');
        // Conditionally launch drop table for course_allowed_modules
        if ($dbman->table_exists($table)) {
            $dbman->drop_table($table);
        }
        upgrade_main_savepoint(true, 2012031500.03);
    }
    if ($oldversion < 2012031500.04) {
        // Clean up the old admin settings.
        unset_config('restrictmodulesfor');
        unset_config('restrictbydefault');
        unset_config('defaultallowedmodules');
        upgrade_main_savepoint(true, 2012031500.04);
    }
    if ($oldversion < 2012032300.02) {
        // Migrate the old admin debug setting.
        if ($CFG->debug == 38911) {
            set_config('debug', DEBUG_DEVELOPER);
        } else {
            if ($CFG->debug == 6143) {
                set_config('debug', DEBUG_ALL);
            }
        }
        upgrade_main_savepoint(true, 2012032300.02);
    }
    if ($oldversion < 2012042300.0) {
        // This change makes the course_section index unique.
        // xmldb does not allow changing index uniqueness - instead we must drop
        // index then add it again
        $table = new xmldb_table('course_sections');
        $index = new xmldb_index('course_section', XMLDB_INDEX_NOTUNIQUE, array('course', 'section'));
        // Conditionally launch drop index course_section
        if ($dbman->index_exists($table, $index)) {
            $dbman->drop_index($table, $index);
        }
        // Look for any duplicate course_sections entries. There should not be
        // any but on some busy systems we found a few, maybe due to previous
        // bugs.
        $transaction = $DB->start_delegated_transaction();
        $rs = $DB->get_recordset_sql('
                SELECT DISTINCT
                    cs.id, cs.course
                FROM
                    {course_sections} cs
                    INNER JOIN {course_sections} older
                        ON cs.course = older.course AND cs.section = older.section
                        AND older.id < cs.id');
        foreach ($rs as $rec) {
            $DB->delete_records('course_sections', array('id' => $rec->id));
            // We can't use rebuild_course_cache() here because introducing sectioncache later
            // so reset modinfo manually.
            $DB->set_field('course', 'modinfo', null, array('id' => $rec->course));
        }
        $rs->close();
        $transaction->allow_commit();
        // Define index course_section (unique) to be added to course_sections
        $index = new xmldb_index('course_section', XMLDB_INDEX_UNIQUE, array('course', 'section'));
        // Conditionally launch add index course_section
        if (!$dbman->index_exists($table, $index)) {
            $dbman->add_index($table, $index);
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2012042300.0);
    }
    if ($oldversion < 2012042300.02) {
        require_once $CFG->dirroot . '/completion/criteria/completion_criteria.php';
        // Delete orphaned criteria which were left when modules were removed
        if ($DB->get_dbfamily() === 'mysql') {
            $sql = "DELETE cc FROM {course_completion_criteria} cc\n                    LEFT JOIN {course_modules} cm ON cm.id = cc.moduleinstance\n                    WHERE cm.id IS NULL AND cc.criteriatype = " . COMPLETION_CRITERIA_TYPE_ACTIVITY;
        } else {
            $sql = "DELETE FROM {course_completion_criteria}\n                    WHERE NOT EXISTS (\n                        SELECT 'x' FROM {course_modules}\n                        WHERE {course_modules}.id = {course_completion_criteria}.moduleinstance)\n                    AND {course_completion_criteria}.criteriatype = " . COMPLETION_CRITERIA_TYPE_ACTIVITY;
        }
        $DB->execute($sql);
        // Main savepoint reached
        upgrade_main_savepoint(true, 2012042300.02);
    }
    if ($oldversion < 2012050300.01) {
        // Make sure deleted users do not have picture flag.
        $DB->set_field('user', 'picture', 0, array('deleted' => 1, 'picture' => 1));
        upgrade_main_savepoint(true, 2012050300.01);
    }
    if ($oldversion < 2012050300.02) {
        // Changing precision of field picture on table user to (10)
        $table = new xmldb_table('user');
        $field = new xmldb_field('picture', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0', 'secret');
        // Launch change of precision for field picture
        $dbman->change_field_precision($table, $field);
        // Main savepoint reached
        upgrade_main_savepoint(true, 2012050300.02);
    }
    if ($oldversion < 2012050300.03) {
        // Define field coursedisplay to be added to course
        $table = new xmldb_table('course');
        $field = new xmldb_field('coursedisplay', XMLDB_TYPE_INTEGER, '2', null, XMLDB_NOTNULL, null, '0', 'completionnotify');
        // Conditionally launch add field coursedisplay
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2012050300.03);
    }
    if ($oldversion < 2012050300.04) {
        // Define table course_display to be dropped
        $table = new xmldb_table('course_display');
        // Conditionally launch drop table for course_display
        if ($dbman->table_exists($table)) {
            $dbman->drop_table($table);
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2012050300.04);
    }
    if ($oldversion < 2012050300.05) {
        // Clean up removed admin setting.
        unset_config('navlinkcoursesections');
        upgrade_main_savepoint(true, 2012050300.05);
    }
    if ($oldversion < 2012050400.01) {
        // Define index sortorder (not unique) to be added to course
        $table = new xmldb_table('course');
        $index = new xmldb_index('sortorder', XMLDB_INDEX_NOTUNIQUE, array('sortorder'));
        // Conditionally launch add index sortorder
        if (!$dbman->index_exists($table, $index)) {
            $dbman->add_index($table, $index);
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2012050400.01);
    }
    if ($oldversion < 2012050400.02) {
        // Clean up removed admin setting.
        unset_config('enablecourseajax');
        upgrade_main_savepoint(true, 2012050400.02);
    }
    if ($oldversion < 2012051100.01) {
        // Define field idnumber to be added to groups
        $table = new xmldb_table('groups');
        $field = new xmldb_field('idnumber', XMLDB_TYPE_CHAR, '100', null, XMLDB_NOTNULL, null, null, 'courseid');
        $index = new xmldb_index('idnumber', XMLDB_INDEX_NOTUNIQUE, array('idnumber'));
        // Conditionally launch add field idnumber
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        // Conditionally launch add index idnumber
        if (!$dbman->index_exists($table, $index)) {
            $dbman->add_index($table, $index);
        }
        // Define field idnumber to be added to groupings
        $table = new xmldb_table('groupings');
        $field = new xmldb_field('idnumber', XMLDB_TYPE_CHAR, '100', null, XMLDB_NOTNULL, null, null, 'name');
        $index = new xmldb_index('idnumber', XMLDB_INDEX_NOTUNIQUE, array('idnumber'));
        // Conditionally launch add field idnumber
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        // Conditionally launch add index idnumber
        if (!$dbman->index_exists($table, $index)) {
            $dbman->add_index($table, $index);
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2012051100.01);
    }
    if ($oldversion < 2012051100.03) {
        // Amend course table to add sectioncache cache
        $table = new xmldb_table('course');
        $field = new xmldb_field('sectioncache', XMLDB_TYPE_TEXT, null, null, null, null, null, 'showgrades');
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        // Amend course_sections to add date, time and groupingid availability
        // conditions and a setting about whether to show them
        $table = new xmldb_table('course_sections');
        $field = new xmldb_field('availablefrom', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0', 'visible');
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        $field = new xmldb_field('availableuntil', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0', 'availablefrom');
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        $field = new xmldb_field('showavailability', XMLDB_TYPE_INTEGER, '1', null, XMLDB_NOTNULL, null, '0', 'availableuntil');
        // Conditionally launch add field showavailability
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        $field = new xmldb_field('groupingid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0', 'showavailability');
        // Conditionally launch add field groupingid
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        // Add course_sections_availability to add completion & grade availability conditions
        $table = new xmldb_table('course_sections_availability');
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('coursesectionid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null);
        $table->add_field('sourcecmid', XMLDB_TYPE_INTEGER, '10', null, null, null, null);
        $table->add_field('requiredcompletion', XMLDB_TYPE_INTEGER, '1', null, null, null, null);
        $table->add_field('gradeitemid', XMLDB_TYPE_INTEGER, '10', null, null, null, null);
        $table->add_field('grademin', XMLDB_TYPE_NUMBER, '10, 5', null, null, null, null);
        $table->add_field('grademax', XMLDB_TYPE_NUMBER, '10, 5', null, null, null, null);
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->add_key('coursesectionid', XMLDB_KEY_FOREIGN, array('coursesectionid'), 'course_sections', array('id'));
        $table->add_key('sourcecmid', XMLDB_KEY_FOREIGN, array('sourcecmid'), 'course_modules', array('id'));
        $table->add_key('gradeitemid', XMLDB_KEY_FOREIGN, array('gradeitemid'), 'grade_items', array('id'));
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2012051100.03);
    }
    if ($oldversion < 2012052100.0) {
        // Define field referencefileid to be added to files.
        $table = new xmldb_table('files');
        // Define field referencefileid to be added to files.
        $field = new xmldb_field('referencefileid', XMLDB_TYPE_INTEGER, '10', null, null, null, null, 'sortorder');
        // Conditionally launch add field referencefileid.
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        // Define field referencelastsync to be added to files.
        $field = new xmldb_field('referencelastsync', XMLDB_TYPE_INTEGER, '10', null, null, null, null, 'referencefileid');
        // Conditionally launch add field referencelastsync.
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        // Define field referencelifetime to be added to files.
        $field = new xmldb_field('referencelifetime', XMLDB_TYPE_INTEGER, '10', null, null, null, null, 'referencelastsync');
        // Conditionally launch add field referencelifetime.
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        $key = new xmldb_key('referencefileid', XMLDB_KEY_FOREIGN, array('referencefileid'), 'files_reference', array('id'));
        // Launch add key referencefileid
        $dbman->add_key($table, $key);
        // Define table files_reference to be created.
        $table = new xmldb_table('files_reference');
        // Adding fields to table files_reference.
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('repositoryid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null);
        $table->add_field('lastsync', XMLDB_TYPE_INTEGER, '10', null, null, null, null);
        $table->add_field('lifetime', XMLDB_TYPE_INTEGER, '10', null, null, null, null);
        $table->add_field('reference', XMLDB_TYPE_TEXT, null, null, null, null, null);
        // Adding keys to table files_reference.
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->add_key('repositoryid', XMLDB_KEY_FOREIGN, array('repositoryid'), 'repository_instances', array('id'));
        // Conditionally launch create table for files_reference
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2012052100.0);
    }
    if ($oldversion < 2012052500.03) {
        // fix invalid course_completion_records MDL-27368
        //first get all instances of duplicate records
        $sql = 'SELECT userid, course FROM {course_completions} WHERE (deleted IS NULL OR deleted <> 1) GROUP BY userid, course HAVING (count(id) > 1)';
        $duplicates = $DB->get_recordset_sql($sql, array());
        foreach ($duplicates as $duplicate) {
            $pointer = 0;
            //now get all the records for this user/course
            $sql = 'userid = ? AND course = ? AND (deleted IS NULL OR deleted <> 1)';
            $completions = $DB->get_records_select('course_completions', $sql, array($duplicate->userid, $duplicate->course), 'timecompleted DESC, timestarted DESC');
            $needsupdate = false;
            $origcompletion = null;
            foreach ($completions as $completion) {
                $pointer++;
                if ($pointer === 1) {
                    //keep 1st record but delete all others.
                    $origcompletion = $completion;
                } else {
                    //we need to keep the "oldest" of all these fields as the valid completion record.
                    $fieldstocheck = array('timecompleted', 'timestarted', 'timeenrolled');
                    foreach ($fieldstocheck as $f) {
                        if ($origcompletion->{$f} > $completion->{$f}) {
                            $origcompletion->{$f} = $completion->{$f};
                            $needsupdate = true;
                        }
                    }
                    $DB->delete_records('course_completions', array('id' => $completion->id));
                }
            }
            if ($needsupdate) {
                $DB->update_record('course_completions', $origcompletion);
            }
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2012052500.03);
    }
    if ($oldversion < 2012052900.0) {
        // Clean up all duplicate records in the course_completions table in preparation
        // for adding a new index there.
        upgrade_course_completion_remove_duplicates('course_completions', array('userid', 'course'), array('timecompleted', 'timestarted', 'timeenrolled'));
        // Main savepoint reached
        upgrade_main_savepoint(true, 2012052900.0);
    }
    if ($oldversion < 2012052900.01) {
        // Add indexes to prevent new duplicates in the course_completions table.
        // Define index useridcourse (unique) to be added to course_completions
        $table = new xmldb_table('course_completions');
        $index = new xmldb_index('useridcourse', XMLDB_INDEX_UNIQUE, array('userid', 'course'));
        // Conditionally launch add index useridcourse
        if (!$dbman->index_exists($table, $index)) {
            $dbman->add_index($table, $index);
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2012052900.01);
    }
    if ($oldversion < 2012052900.02) {
        // Clean up all duplicate records in the course_completion_crit_compl table in preparation
        // for adding a new index there.
        upgrade_course_completion_remove_duplicates('course_completion_crit_compl', array('userid', 'course', 'criteriaid'), array('timecompleted'));
        // Main savepoint reached
        upgrade_main_savepoint(true, 2012052900.02);
    }
    if ($oldversion < 2012052900.03) {
        // Add indexes to prevent new duplicates in the course_completion_crit_compl table.
        // Define index useridcoursecriteraid (unique) to be added to course_completion_crit_compl
        $table = new xmldb_table('course_completion_crit_compl');
        $index = new xmldb_index('useridcoursecriteraid', XMLDB_INDEX_UNIQUE, array('userid', 'course', 'criteriaid'));
        // Conditionally launch add index useridcoursecriteraid
        if (!$dbman->index_exists($table, $index)) {
            $dbman->add_index($table, $index);
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2012052900.03);
    }
    if ($oldversion < 2012052900.04) {
        // Clean up all duplicate records in the course_completion_aggr_methd table in preparation
        // for adding a new index there.
        upgrade_course_completion_remove_duplicates('course_completion_aggr_methd', array('course', 'criteriatype'));
        // Main savepoint reached
        upgrade_main_savepoint(true, 2012052900.04);
    }
    if ($oldversion < 2012052900.05) {
        // Add indexes to prevent new duplicates in the course_completion_aggr_methd table.
        // Define index coursecriteratype (unique) to be added to course_completion_aggr_methd
        $table = new xmldb_table('course_completion_aggr_methd');
        $index = new xmldb_index('coursecriteriatype', XMLDB_INDEX_UNIQUE, array('course', 'criteriatype'));
        // Conditionally launch add index coursecriteratype
        if (!$dbman->index_exists($table, $index)) {
            $dbman->add_index($table, $index);
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2012052900.05);
    }
    if ($oldversion < 2012060600.01) {
        // Add field referencehash to files_reference
        $table = new xmldb_table('files_reference');
        $field = new xmldb_field('referencehash', XMLDB_TYPE_CHAR, '40', null, XMLDB_NOTNULL, null, null, 'reference');
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        upgrade_main_savepoint(true, 2012060600.01);
    }
    if ($oldversion < 2012060600.02) {
        // Populate referencehash field with SHA1 hash of the reference - this shoudl affect only 2.3dev sites
        // that were using the feature for testing. Production sites have the table empty.
        $rs = $DB->get_recordset('files_reference', null, '', 'id, reference');
        foreach ($rs as $record) {
            $hash = sha1($record->reference);
            $DB->set_field('files_reference', 'referencehash', $hash, array('id' => $record->id));
        }
        $rs->close();
        upgrade_main_savepoint(true, 2012060600.02);
    }
    if ($oldversion < 2012060600.03) {
        // Merge duplicate records in files_reference that were created during the development
        // phase at 2.3dev sites. This is needed so we can create the unique index over
        // (repositoryid, referencehash) fields.
        $sql = "SELECT repositoryid, referencehash, MIN(id) AS minid\n                  FROM {files_reference}\n              GROUP BY repositoryid, referencehash\n                HAVING COUNT(*) > 1";
        $duprs = $DB->get_recordset_sql($sql);
        foreach ($duprs as $duprec) {
            // get the list of all ids in {files_reference} that need to be remapped
            $dupids = $DB->get_records_select('files_reference', "repositoryid = ? AND referencehash = ? AND id > ?", array($duprec->repositoryid, $duprec->referencehash, $duprec->minid), '', 'id');
            $dupids = array_keys($dupids);
            // relink records in {files} that are now referring to a duplicate record
            // in {files_reference} to refer to the first one
            list($subsql, $subparams) = $DB->get_in_or_equal($dupids);
            $DB->set_field_select('files', 'referencefileid', $duprec->minid, "referencefileid {$subsql}", $subparams);
            // and finally remove all orphaned records from {files_reference}
            $DB->delete_records_list('files_reference', 'id', $dupids);
        }
        $duprs->close();
        upgrade_main_savepoint(true, 2012060600.03);
    }
    if ($oldversion < 2012060600.04) {
        // Add a unique index over repositoryid and referencehash fields in files_reference table
        $table = new xmldb_table('files_reference');
        $index = new xmldb_index('uq_external_file', XMLDB_INDEX_UNIQUE, array('repositoryid', 'referencehash'));
        if (!$dbman->index_exists($table, $index)) {
            $dbman->add_index($table, $index);
        }
        upgrade_main_savepoint(true, 2012060600.04);
    }
    if ($oldversion < 2012061800.01) {
        // Define field screenreader to be dropped from user
        $table = new xmldb_table('user');
        $field = new xmldb_field('ajax');
        // Conditionally launch drop field screenreader
        if ($dbman->field_exists($table, $field)) {
            $dbman->drop_field($table, $field);
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2012061800.01);
    }
    if ($oldversion < 2012062000.0) {
        // Add field newcontextid to backup_files_template
        $table = new xmldb_table('backup_files_template');
        $field = new xmldb_field('newcontextid', XMLDB_TYPE_INTEGER, '10', null, null, null, null, 'info');
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        upgrade_main_savepoint(true, 2012062000.0);
    }
    if ($oldversion < 2012062000.01) {
        // Add field newitemid to backup_files_template
        $table = new xmldb_table('backup_files_template');
        $field = new xmldb_field('newitemid', XMLDB_TYPE_INTEGER, '10', null, null, null, null, 'newcontextid');
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        upgrade_main_savepoint(true, 2012062000.01);
    }
    // Moodle v2.3.0 release upgrade line
    // Put any upgrade step following this
    if ($oldversion < 2012062500.02) {
        // Drop some old backup tables, not used anymore
        // Define table backup_files to be dropped
        $table = new xmldb_table('backup_files');
        // Conditionally launch drop table for backup_files
        if ($dbman->table_exists($table)) {
            $dbman->drop_table($table);
        }
        // Define table backup_ids to be dropped
        $table = new xmldb_table('backup_ids');
        // Conditionally launch drop table for backup_ids
        if ($dbman->table_exists($table)) {
            $dbman->drop_table($table);
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2012062500.02);
    }
    if ($oldversion < 2012070600.04) {
        // Define table course_modules_avail_fields to be created
        $table = new xmldb_table('course_modules_avail_fields');
        // Adding fields to table course_modules_avail_fields
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('coursemoduleid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null);
        $table->add_field('userfield', XMLDB_TYPE_CHAR, '50', null, null, null, null);
        $table->add_field('customfieldid', XMLDB_TYPE_INTEGER, '10', null, null, null, null);
        $table->add_field('operator', XMLDB_TYPE_CHAR, '20', null, XMLDB_NOTNULL, null, null);
        $table->add_field('value', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null);
        // Adding keys to table course_modules_avail_fields
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->add_key('coursemoduleid', XMLDB_KEY_FOREIGN, array('coursemoduleid'), 'course_modules', array('id'));
        // Conditionally launch create table for course_modules_avail_fields
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2012070600.04);
    }
    if ($oldversion < 2012070600.05) {
        // Define table course_sections_avail_fields to be created
        $table = new xmldb_table('course_sections_avail_fields');
        // Adding fields to table course_sections_avail_fields
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('coursesectionid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null);
        $table->add_field('userfield', XMLDB_TYPE_CHAR, '50', null, null, null, null);
        $table->add_field('customfieldid', XMLDB_TYPE_INTEGER, '10', null, null, null, null);
        $table->add_field('operator', XMLDB_TYPE_CHAR, '20', null, XMLDB_NOTNULL, null, null);
        $table->add_field('value', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null);
        // Adding keys to table course_sections_avail_fields
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->add_key('coursesectionid', XMLDB_KEY_FOREIGN, array('coursesectionid'), 'course_sections', array('id'));
        // Conditionally launch create table for course_sections_avail_fields
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2012070600.05);
    }
    if ($oldversion < 2012070600.06) {
        // Drop "deleted" fields
        $table = new xmldb_table('course_completions');
        $field = new xmldb_field('timenotified');
        $field = new xmldb_field('deleted');
        // Conditionally launch drop field deleted from course_completions
        if ($dbman->field_exists($table, $field)) {
            $dbman->drop_field($table, $field);
        }
        $field = new xmldb_field('timenotified');
        // Conditionally launch drop field timenotified from course_completions
        if ($dbman->field_exists($table, $field)) {
            $dbman->drop_field($table, $field);
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2012070600.06);
    }
    if ($oldversion < 2012070600.07) {
        $table = new xmldb_table('course_completion_crit_compl');
        $field = new xmldb_field('deleted');
        // Conditionally launch drop field deleted from course_completion_crit_compl
        if ($dbman->field_exists($table, $field)) {
            $dbman->drop_field($table, $field);
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2012070600.07);
    }
    if ($oldversion < 2012070600.08) {
        // Drop unused table "course_completion_notify"
        $table = new xmldb_table('course_completion_notify');
        // Conditionally launch drop table course_completion_notify
        if ($dbman->table_exists($table)) {
            $dbman->drop_table($table);
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2012070600.08);
    }
    if ($oldversion < 2012070600.09) {
        // Define index path (not unique) to be added to context
        $table = new xmldb_table('context');
        $index = new xmldb_index('path', XMLDB_INDEX_NOTUNIQUE, array('path'), array('varchar_pattern_ops'));
        // Recreate index with new pattern hint
        if ($DB->get_dbfamily() === 'postgres') {
            if ($dbman->index_exists($table, $index)) {
                $dbman->drop_index($table, $index);
            }
            $dbman->add_index($table, $index);
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2012070600.09);
    }
    if ($oldversion < 2012070600.1) {
        // Define index name (unique) to be dropped form role
        $table = new xmldb_table('role');
        $index = new xmldb_index('name', XMLDB_INDEX_UNIQUE, array('name'));
        // Conditionally launch drop index name
        if ($dbman->index_exists($table, $index)) {
            $dbman->drop_index($table, $index);
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2012070600.1);
    }
    if ($oldversion < 2012070600.11) {
        // Define index component-itemid-userid (not unique) to be added to role_assignments
        $table = new xmldb_table('role_assignments');
        $index = new xmldb_index('component-itemid-userid', XMLDB_INDEX_NOTUNIQUE, array('component', 'itemid', 'userid'));
        // Conditionally launch add index component-itemid-userid
        if (!$dbman->index_exists($table, $index)) {
            $dbman->add_index($table, $index);
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2012070600.11);
    }
    if ($oldversion < 2012071900.01) {
        // Cleanup after simpeltests tool
        capabilities_cleanup('tool_unittest');
        unset_all_config_for_plugin('tool_unittest');
        upgrade_main_savepoint(true, 2012071900.01);
    }
    if ($oldversion < 2012072400.0) {
        // Remove obsolete xhtml strict setting - use THEME->doctype in theme config if necessary,
        // see theme_config->doctype in lib/outputlib.php for more details.
        unset_config('xmlstrictheaders');
        upgrade_main_savepoint(true, 2012072400.0);
    }
    if ($oldversion < 2012072401.0) {
        // Saves orphaned questions from the Dark Side
        upgrade_save_orphaned_questions();
        // Main savepoint reached
        upgrade_main_savepoint(true, 2012072401.0);
    }
    if ($oldversion < 2012072600.01) {
        // Handle events with empty eventtype //MDL-32827
        $DB->set_field('event', 'eventtype', 'site', array('eventtype' => '', 'courseid' => $SITE->id));
        $DB->set_field_select('event', 'eventtype', 'due', "eventtype = '' AND courseid != 0 AND groupid = 0 AND (modulename = 'assignment' OR modulename = 'assign')");
        $DB->set_field_select('event', 'eventtype', 'course', "eventtype = '' AND courseid != 0 AND groupid = 0");
        $DB->set_field_select('event', 'eventtype', 'group', "eventtype = '' AND groupid != 0");
        $DB->set_field_select('event', 'eventtype', 'user', "eventtype = '' AND userid != 0");
        // Main savepoint reached
        upgrade_main_savepoint(true, 2012072600.01);
    }
    if ($oldversion < 2012080200.02) {
        // Drop obsolete question upgrade field that should have been added to the install.xml.
        $table = new xmldb_table('question');
        $field = new xmldb_field('oldquestiontextformat', XMLDB_TYPE_INTEGER, '2', null, XMLDB_NOTNULL, null, '0');
        if ($dbman->field_exists($table, $field)) {
            $dbman->drop_field($table, $field);
        }
        upgrade_main_savepoint(true, 2012080200.02);
    }
    if ($oldversion < 2012081400.01) {
        // Move the ability to disable blogs to its own setting MDL-25012.
        if (isset($CFG->bloglevel)) {
            // Only change settings if existing setting was set.
            if (empty($CFG->bloglevel)) {
                set_config('enableblogs', 0);
                // Now set the bloglevel to a valid setting as the disabled setting has been removed.
                // This prevents confusing results when users enable the blog system in future.
                set_config('bloglevel', BLOG_USER_LEVEL);
            } else {
                set_config('enableblogs', 1);
            }
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2012081400.01);
    }
    return true;
}
Exemplo n.º 15
0
/**
 * This file keeps track of upgrades to
 * the forum module
 *
 * Sometimes, changes between versions involve
 * alterations to database structures and other
 * major things that may break installations.
 *
 * The upgrade function in this file will attempt
 * to perform all the necessary actions to upgrade
 * your older installation to the current version.
 *
 * If there's something it cannot do itself, it
 * will tell you what you need to do.
 *
 * The commands in here will all be database-neutral,
 * using the methods of database_manager class
 *
 * Please do not forget to use upgrade_set_timeout()
 * before any action that may take longer time to finish.
 *
 * @package mod-forum
 * @copyright 2003 onwards Eloy Lafuente (stronk7) {@link http://stronk7.com}
 * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */
function xmldb_forum_upgrade($oldversion)
{
    global $CFG, $DB, $OUTPUT;
    $dbman = $DB->get_manager();
    // loads ddl manager and xmldb classes
    //===== 1.9.0 upgrade line ======//
    if ($oldversion < 2007101511) {
        //MDL-13866 - send forum ratins to gradebook again
        require_once $CFG->dirroot . '/mod/forum/lib.php';
        forum_upgrade_grades();
        upgrade_mod_savepoint(true, 2007101511, 'forum');
    }
    if ($oldversion < 2008072800) {
        /// Define field completiondiscussions to be added to forum
        $table = new xmldb_table('forum');
        $field = new xmldb_field('completiondiscussions');
        $field->set_attributes(XMLDB_TYPE_INTEGER, '9', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0', 'blockperiod');
        /// Launch add field completiondiscussions
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        $field = new xmldb_field('completionreplies');
        $field->set_attributes(XMLDB_TYPE_INTEGER, '9', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0', 'completiondiscussions');
        /// Launch add field completionreplies
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        /// Define field completionposts to be added to forum
        $field = new xmldb_field('completionposts');
        $field->set_attributes(XMLDB_TYPE_INTEGER, '9', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0', 'completionreplies');
        /// Launch add field completionposts
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        upgrade_mod_savepoint(true, 2008072800, 'forum');
    }
    if ($oldversion < 2008081900) {
        /////////////////////////////////////
        /// new file storage upgrade code ///
        /////////////////////////////////////
        $fs = get_file_storage();
        $empty = $DB->sql_empty();
        // silly oracle empty string handling workaround
        $sqlfrom = "FROM {forum_posts} p\n                    JOIN {forum_discussions} d ON d.id = p.discussion\n                    JOIN {forum} f ON f.id = d.forum\n                    JOIN {modules} m ON m.name = 'forum'\n                    JOIN {course_modules} cm ON (cm.module = m.id AND cm.instance = f.id)\n                   WHERE p.attachment <> '{$empty}' AND p.attachment <> '1'";
        $count = $DB->count_records_sql("SELECT COUNT('x') {$sqlfrom}");
        $rs = $DB->get_recordset_sql("SELECT p.id, p.attachment, p.userid, d.forum, f.course, cm.id AS cmid {$sqlfrom} ORDER BY f.course, f.id, d.id");
        if ($rs->valid()) {
            $pbar = new progress_bar('migrateforumfiles', 500, true);
            $i = 0;
            foreach ($rs as $post) {
                $i++;
                upgrade_set_timeout(60);
                // set up timeout, may also abort execution
                $pbar->update($i, $count, "Migrating forum posts - {$i}/{$count}.");
                $filepath = "{$CFG->dataroot}/{$post->course}/{$CFG->moddata}/forum/{$post->forum}/{$post->id}/{$post->attachment}";
                if (!is_readable($filepath)) {
                    //file missing??
                    echo $OUTPUT->notification("File not readable, skipping: " . $filepath);
                    $post->attachment = '';
                    $DB->update_record('forum_posts', $post);
                    continue;
                }
                $context = get_context_instance(CONTEXT_MODULE, $post->cmid);
                $filearea = 'attachment';
                $filename = clean_param($post->attachment, PARAM_FILE);
                if ($filename === '') {
                    echo $OUTPUT->notification("Unsupported post filename, skipping: " . $filepath);
                    $post->attachment = '';
                    $DB->update_record('forum_posts', $post);
                    continue;
                }
                if (!$fs->file_exists($context->id, 'mod_forum', $filearea, $post->id, '/', $filename)) {
                    $file_record = array('contextid' => $context->id, 'component' => 'mod_forum', 'filearea' => $filearea, 'itemid' => $post->id, 'filepath' => '/', 'filename' => $filename, 'userid' => $post->userid);
                    if ($fs->create_file_from_pathname($file_record, $filepath)) {
                        $post->attachment = '1';
                        $DB->update_record('forum_posts', $post);
                        unlink($filepath);
                    }
                }
                // remove dirs if empty
                @rmdir("{$CFG->dataroot}/{$post->course}/{$CFG->moddata}/forum/{$post->forum}/{$post->id}");
                @rmdir("{$CFG->dataroot}/{$post->course}/{$CFG->moddata}/forum/{$post->forum}");
                @rmdir("{$CFG->dataroot}/{$post->course}/{$CFG->moddata}/forum");
            }
        }
        $rs->close();
        upgrade_mod_savepoint(true, 2008081900, 'forum');
    }
    if ($oldversion < 2008090800) {
        /// Define field maxattachments to be added to forum
        $table = new xmldb_table('forum');
        $field = new xmldb_field('maxattachments', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '1', 'maxbytes');
        /// Conditionally launch add field maxattachments
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        /// forum savepoint reached
        upgrade_mod_savepoint(true, 2008090800, 'forum');
    }
    if ($oldversion < 2009042000) {
        /// Rename field format on table forum_posts to messageformat
        $table = new xmldb_table('forum_posts');
        $field = new xmldb_field('format', XMLDB_TYPE_INTEGER, '2', null, XMLDB_NOTNULL, null, '0', 'message');
        /// Launch rename field format
        $dbman->rename_field($table, $field, 'messageformat');
        /// forum savepoint reached
        upgrade_mod_savepoint(true, 2009042000, 'forum');
    }
    if ($oldversion < 2009042001) {
        /// Define field messagetrust to be added to forum_posts
        $table = new xmldb_table('forum_posts');
        $field = new xmldb_field('messagetrust', XMLDB_TYPE_INTEGER, '2', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0', 'messageformat');
        /// Launch add field messagetrust
        $dbman->add_field($table, $field);
        /// forum savepoint reached
        upgrade_mod_savepoint(true, 2009042001, 'forum');
    }
    if ($oldversion < 2009042002) {
        $trustmark = '#####TRUSTTEXT#####';
        $rs = $DB->get_recordset_sql("SELECT * FROM {forum_posts} WHERE message LIKE ?", array($trustmark . '%'));
        foreach ($rs as $post) {
            if (strpos($post->message, $trustmark) !== 0) {
                // probably lowercase in some DBs?
                continue;
            }
            $post->message = str_replace($trustmark, '', $post->message);
            $post->messagetrust = 1;
            $DB->update_record('forum_posts', $post);
        }
        $rs->close();
        /// forum savepoint reached
        upgrade_mod_savepoint(true, 2009042002, 'forum');
    }
    if ($oldversion < 2009042003) {
        /// Define field introformat to be added to forum
        $table = new xmldb_table('forum');
        $field = new xmldb_field('introformat', XMLDB_TYPE_INTEGER, '4', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0', 'intro');
        /// Launch add field introformat
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        // conditionally migrate to html format in intro
        if ($CFG->texteditors !== 'textarea') {
            $rs = $DB->get_recordset('forum', array('introformat' => FORMAT_MOODLE), '', 'id,intro,introformat');
            foreach ($rs as $f) {
                $f->intro = text_to_html($f->intro, false, false, true);
                $f->introformat = FORMAT_HTML;
                $DB->update_record('forum', $f);
                upgrade_set_timeout();
            }
            $rs->close();
        }
        /// forum savepoint reached
        upgrade_mod_savepoint(true, 2009042003, 'forum');
    }
    /// Dropping all enums/check contraints from core. MDL-18577
    if ($oldversion < 2009042700) {
        /// Changing list of values (enum) of field type on table forum to none
        $table = new xmldb_table('forum');
        $field = new xmldb_field('type', XMLDB_TYPE_CHAR, '20', null, XMLDB_NOTNULL, null, 'general', 'course');
        /// Launch change of list of values for field type
        $dbman->drop_enum_from_field($table, $field);
        /// forum savepoint reached
        upgrade_mod_savepoint(true, 2009042700, 'forum');
    }
    if ($oldversion < 2009050400) {
        /// Clean existing wrong rates. MDL-18227
        $DB->delete_records('forum_ratings', array('post' => 0));
        /// forum savepoint reached
        upgrade_mod_savepoint(true, 2009050400, 'forum');
    }
    if ($oldversion < 2010042800) {
        //migrate forumratings to the central rating table
        $table = new xmldb_table('forum_ratings');
        if ($dbman->table_exists($table)) {
            //forum ratings only have a single time column so use it for both time created and modified
            $sql = "INSERT INTO {rating} (contextid, scaleid, itemid, rating, userid, timecreated, timemodified)\n\n                    SELECT cxt.id, f.scale, r.post AS itemid, r.rating, r.userid, r.time AS timecreated, r.time AS timemodified\n                      FROM {forum_ratings} r\n                      JOIN {forum_posts} p ON p.id=r.post\n                      JOIN {forum_discussions} d ON d.id=p.discussion\n                      JOIN {forum} f ON f.id=d.forum\n                      JOIN {course_modules} cm ON cm.instance=f.id\n                      JOIN {context} cxt ON cxt.instanceid=cm.id\n                      JOIN {modules} m ON m.id=cm.module\n                     WHERE m.name = :modname AND cxt.contextlevel = :contextlevel";
            $params['modname'] = 'forum';
            $params['contextlevel'] = CONTEXT_MODULE;
            $DB->execute($sql, $params);
            //now drop forum_ratings
            $dbman->drop_table($table);
        }
        upgrade_mod_savepoint(true, 2010042800, 'forum');
    }
    if ($oldversion < 2010070800) {
        // Remove the forum digests message provider MDL-23145
        $DB->delete_records('message_providers', array('name' => 'digests', 'component' => 'mod_forum'));
        // forum savepoint reached
        upgrade_mod_savepoint(true, 2010070800, 'forum');
    }
    if ($oldversion < 2010091900) {
        // rename files from borked upgrade in 2.0dev
        $fs = get_file_storage();
        $rs = $DB->get_recordset('files', array('component' => 'mod_form'));
        foreach ($rs as $oldrecord) {
            $file = $fs->get_file_instance($oldrecord);
            $newrecord = array('component' => 'mod_forum');
            if (!$fs->file_exists($oldrecord->contextid, 'mod_forum', $oldrecord->filearea, $oldrecord->itemid, $oldrecord->filepath, $oldrecord->filename)) {
                $fs->create_file_from_storedfile($newrecord, $file);
            }
            $file->delete();
        }
        $rs->close();
        upgrade_mod_savepoint(true, 2010091900, 'forum');
    }
    return true;
}
function xmldb_chat_upgrade($oldversion)
{
    global $CFG, $DB;
    $dbman = $DB->get_manager();
    //===== 1.9.0 upgrade line ======//
    if ($oldversion < 2010050100) {
        /// Changing precision of field ip on table chat_users to (45)
        $table = new xmldb_table('chat_users');
        $field = new xmldb_field('ip', XMLDB_TYPE_CHAR, '45', null, XMLDB_NOTNULL, null, null, 'version');
        /// Launch change of precision for field ip
        $dbman->change_field_precision($table, $field);
        /// chat savepoint reached
        upgrade_mod_savepoint(true, 2010050100, 'chat');
    }
    if ($oldversion < 2010050101) {
        /// Define field introformat to be added to chat
        $table = new xmldb_table('chat');
        $field = new xmldb_field('introformat', XMLDB_TYPE_INTEGER, '4', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0', 'intro');
        /// Launch add field introformat
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        // conditionally migrate to html format in intro
        if ($CFG->texteditors !== 'textarea') {
            $rs = $DB->get_recordset('chat', array('introformat' => FORMAT_MOODLE), '', 'id,intro,introformat');
            foreach ($rs as $ch) {
                $ch->intro = text_to_html($ch->intro, false, false, true);
                $ch->introformat = FORMAT_HTML;
                $DB->update_record('chat', $ch);
                upgrade_set_timeout();
            }
            $rs->close();
        }
        /// chat savepoint reached
        upgrade_mod_savepoint(true, 2010050101, 'chat');
    }
    /// Creating chat_messages_current to hold latest chat messages
    if ($oldversion < 2010050102) {
        /// Define table chat_messages_current to be created
        $table = new xmldb_table('chat_messages_current');
        /// Adding fields to table chat_messages_current
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('chatid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0');
        $table->add_field('userid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0');
        $table->add_field('groupid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0');
        $table->add_field('system', XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0');
        $table->add_field('message', XMLDB_TYPE_TEXT, 'small', null, XMLDB_NOTNULL, null, null);
        $table->add_field('timestamp', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0');
        /// Adding keys to table chat_messages_current
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->add_key('chatid', XMLDB_KEY_FOREIGN, array('chatid'), 'chat', array('id'));
        /// Adding indexes to table chat_messages_current
        $table->add_index('userid', XMLDB_INDEX_NOTUNIQUE, array('userid'));
        $table->add_index('groupid', XMLDB_INDEX_NOTUNIQUE, array('groupid'));
        $table->add_index('timestamp-chatid', XMLDB_INDEX_NOTUNIQUE, array('timestamp', 'chatid'));
        /// create table for chat_messages_current
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        /// chat savepoint reached
        upgrade_mod_savepoint(true, 2010050102, 'chat');
    }
    // Moodle v2.1.0 release upgrade line
    // Put any upgrade step following this
    return true;
}
Exemplo n.º 17
0
/**
 * Main upgrade tasks to be executed on Moodle version bump
 *
 * This function is automatically executed after one bump in the Moodle core
 * version is detected. It's in charge of performing the required tasks
 * to raise core from the previous version to the next one.
 *
 * It's a collection of ordered blocks of code, named "upgrade steps",
 * each one performing one isolated (from the rest of steps) task. Usually
 * tasks involve creating new DB objects or performing manipulation of the
 * information for cleanup/fixup purposes.
 *
 * Each upgrade step has a fixed structure, that can be summarised as follows:
 *
 * if ($oldversion < XXXXXXXXXX.XX) {
 *     // Explanation of the update step, linking to issue in the Tracker if necessary
 *     upgrade_set_timeout(XX); // Optional for big tasks
 *     // Code to execute goes here, usually the XMLDB Editor will
 *     // help you here. See {@link http://docs.moodle.org/dev/XMLDB_editor}.
 *     upgrade_main_savepoint(true, XXXXXXXXXX.XX);
 * }
 *
 * All plugins within Moodle (modules, blocks, reports...) support the existence of
 * their own upgrade.php file, using the "Frankenstyle" component name as
 * defined at {@link http://docs.moodle.org/dev/Frankenstyle}, for example:
 *     - {@link xmldb_page_upgrade($oldversion)}. (modules don't require the plugintype ("mod_") to be used.
 *     - {@link xmldb_auth_manual_upgrade($oldversion)}.
 *     - {@link xmldb_workshopform_accumulative_upgrade($oldversion)}.
 *     - ....
 *
 * In order to keep the contents of this file reduced, it's allowed to create some helper
 * functions to be used here in the {@link upgradelib.php} file at the same directory. Note
 * that such a file must be manually included from upgrade.php, and there are some restrictions
 * about what can be used within it.
 *
 * For more information, take a look to the documentation available:
 *     - Data definition API: {@link http://docs.moodle.org/dev/Data_definition_API}
 *     - Upgrade API: {@link http://docs.moodle.org/dev/Upgrade_API}
 *
 * @param int $oldversion
 * @return bool always true
 */
function xmldb_main_upgrade($oldversion)
{
    global $CFG, $USER, $DB, $OUTPUT, $SITE, $COURSE;
    require_once $CFG->libdir . '/db/upgradelib.php';
    // Core Upgrade-related functions
    $dbman = $DB->get_manager();
    // loads ddl manager and xmldb classes
    if ($oldversion < 2011120500) {
        // just in case somebody hacks upgrade scripts or env, we really can not continue
        echo "You need to upgrade to 2.2.x first!\n";
        exit(1);
        // Note this savepoint is 100% unreachable, but needed to pass the upgrade checks
        upgrade_main_savepoint(true, 2011120500);
    }
    // Moodle v2.2.0 release upgrade line
    // Put any upgrade step following this
    if ($oldversion < 2011120500.02) {
        upgrade_set_timeout(60 * 20);
        // This may take a while
        // MDL-28180. Some missing restrictions in certain backup & restore operations
        // were causing incorrect duplicates in the course_completion_aggr_methd table.
        // This upgrade step takes rid of them.
        $sql = 'SELECT course, criteriatype, MIN(id) AS minid
                  FROM {course_completion_aggr_methd}
              GROUP BY course, criteriatype
                HAVING COUNT(*) > 1';
        $duprs = $DB->get_recordset_sql($sql);
        foreach ($duprs as $duprec) {
            // We need to handle NULLs in criteriatype diferently
            if (is_null($duprec->criteriatype)) {
                $where = 'course = ? AND criteriatype IS NULL AND id > ?';
                $params = array($duprec->course, $duprec->minid);
            } else {
                $where = 'course = ? AND criteriatype = ? AND id > ?';
                $params = array($duprec->course, $duprec->criteriatype, $duprec->minid);
            }
            $DB->delete_records_select('course_completion_aggr_methd', $where, $params);
        }
        $duprs->close();
        // Main savepoint reached
        upgrade_main_savepoint(true, 2011120500.02);
    }
    if ($oldversion < 2011120500.03) {
        // Changing precision of field value on table user_preferences to (1333)
        $table = new xmldb_table('user_preferences');
        $field = new xmldb_field('value', XMLDB_TYPE_CHAR, '1333', null, XMLDB_NOTNULL, null, null, 'name');
        // Launch change of precision for field value
        $dbman->change_field_precision($table, $field);
        // Main savepoint reached
        upgrade_main_savepoint(true, 2011120500.03);
    }
    if ($oldversion < 2012020200.03) {
        // Define index rolecontext (not unique) to be added to role_assignments
        $table = new xmldb_table('role_assignments');
        $index = new xmldb_index('rolecontext', XMLDB_INDEX_NOTUNIQUE, array('roleid', 'contextid'));
        // Conditionally launch add index rolecontext
        if (!$dbman->index_exists($table, $index)) {
            $dbman->add_index($table, $index);
        }
        // Define index usercontextrole (not unique) to be added to role_assignments
        $index = new xmldb_index('usercontextrole', XMLDB_INDEX_NOTUNIQUE, array('userid', 'contextid', 'roleid'));
        // Conditionally launch add index usercontextrole
        if (!$dbman->index_exists($table, $index)) {
            $dbman->add_index($table, $index);
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2012020200.03);
    }
    if ($oldversion < 2012020200.06) {
        // Previously we always allowed users to override their email address via the messaging system
        // We have now added a setting to allow admins to turn this this ability on and off
        // While this setting defaults to 0 (off) we're setting it to 1 (on) to maintain the behaviour for upgrading sites
        set_config('messagingallowemailoverride', 1);
        // Main savepoint reached
        upgrade_main_savepoint(true, 2012020200.06);
    }
    if ($oldversion < 2012021700.01) {
        // Changing precision of field uniquehash on table post to 255
        $table = new xmldb_table('post');
        $field = new xmldb_field('uniquehash', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, 'content');
        // Launch change of precision for field uniquehash
        $dbman->change_field_precision($table, $field);
        // Main savepoint reached
        upgrade_main_savepoint(true, 2012021700.01);
    }
    if ($oldversion < 2012021700.02) {
        // Somewhere before 1.9 summary and content column in post table were not null. In 1.9+
        // not null became false.
        $columns = $DB->get_columns('post');
        // Fix discrepancies in summary field after upgrade from 1.9
        if (array_key_exists('summary', $columns) && $columns['summary']->not_null != false) {
            $table = new xmldb_table('post');
            $summaryfield = new xmldb_field('summary', XMLDB_TYPE_TEXT, 'big', null, null, null, null, 'subject');
            if ($dbman->field_exists($table, $summaryfield)) {
                $dbman->change_field_notnull($table, $summaryfield);
            }
        }
        // Fix discrepancies in content field after upgrade from 1.9
        if (array_key_exists('content', $columns) && $columns['content']->not_null != false) {
            $table = new xmldb_table('post');
            $contentfield = new xmldb_field('content', XMLDB_TYPE_TEXT, 'big', null, null, null, null, 'summary');
            if ($dbman->field_exists($table, $contentfield)) {
                $dbman->change_field_notnull($table, $contentfield);
            }
        }
        upgrade_main_savepoint(true, 2012021700.02);
    }
    // The ability to backup user (private) files is out completely - MDL-29248
    if ($oldversion < 2012030100.01) {
        unset_config('backup_general_user_files', 'backup');
        unset_config('backup_general_user_files_locked', 'backup');
        unset_config('backup_auto_user_files', 'backup');
        upgrade_main_savepoint(true, 2012030100.01);
    }
    if ($oldversion < 2012030900.01) {
        // Migrate all numbers to signed & all texts and binaries to big size.
        // It should be safe to interrupt this and continue later.
        upgrade_mysql_fix_unsigned_and_lob_columns();
        // Main savepoint reached
        upgrade_main_savepoint(true, 2012030900.01);
    }
    if ($oldversion < 2012031500.01) {
        // Upgrade old course_allowed_modules data to be permission overrides.
        if ($CFG->restrictmodulesfor === 'all') {
            $courses = $DB->get_records_menu('course', array(), 'id', 'id, 1');
        } else {
            if ($CFG->restrictmodulesfor === 'requested') {
                $courses = $DB->get_records_menu('course', array('restrictmodules' => 1), 'id', 'id, 1');
            } else {
                $courses = array();
            }
        }
        if (!$dbman->table_exists('course_allowed_modules')) {
            // Upgrade must already have been run on this server. This might happen,
            // for example, during development of these changes.
            $courses = array();
        }
        $modidtoname = $DB->get_records_menu('modules', array(), 'id', 'id, name');
        $coursecount = count($courses);
        if ($coursecount) {
            $pbar = new progress_bar('allowedmods', 500, true);
            $transaction = $DB->start_delegated_transaction();
        }
        $i = 0;
        foreach ($courses as $courseid => $notused) {
            $i += 1;
            upgrade_set_timeout(60);
            // 1 minute per course should be fine.
            $allowedmoduleids = $DB->get_records_menu('course_allowed_modules', array('course' => $courseid), 'module', 'module, 1');
            if (empty($allowedmoduleids)) {
                // This seems to be the best match for backwards compatibility,
                // not necessarily with the old code in course_allowed_module function,
                // but with the code that used to be in the coures settings form.
                $allowedmoduleids = explode(',', $CFG->defaultallowedmodules);
                $allowedmoduleids = array_combine($allowedmoduleids, $allowedmoduleids);
            }
            $context = context_course::instance($courseid);
            list($roleids) = get_roles_with_cap_in_context($context, 'moodle/course:manageactivities');
            list($managerroleids) = get_roles_with_cap_in_context($context, 'moodle/site:config');
            foreach ($managerroleids as $roleid) {
                unset($roleids[$roleid]);
            }
            foreach ($modidtoname as $modid => $modname) {
                if (isset($allowedmoduleids[$modid])) {
                    // Module is allowed, no worries.
                    continue;
                }
                $capability = 'mod/' . $modname . ':addinstance';
                foreach ($roleids as $roleid) {
                    assign_capability($capability, CAP_PREVENT, $roleid, $context);
                }
            }
            $pbar->update($i, $coursecount, "Upgrading legacy course_allowed_modules data - {$i}/{$coursecount}.");
        }
        if ($coursecount) {
            $transaction->allow_commit();
        }
        upgrade_main_savepoint(true, 2012031500.01);
    }
    if ($oldversion < 2012031500.02) {
        // Define field restrictmodules to be dropped from course
        $table = new xmldb_table('course');
        $field = new xmldb_field('restrictmodules');
        // Conditionally launch drop field requested
        if ($dbman->field_exists($table, $field)) {
            $dbman->drop_field($table, $field);
        }
        // Since structure of 'course' table has changed we need to re-read $SITE from DB.
        $SITE = $DB->get_record('course', array('id' => $SITE->id));
        $COURSE = clone $SITE;
        upgrade_main_savepoint(true, 2012031500.02);
    }
    if ($oldversion < 2012031500.03) {
        // Define table course_allowed_modules to be dropped
        $table = new xmldb_table('course_allowed_modules');
        // Conditionally launch drop table for course_allowed_modules
        if ($dbman->table_exists($table)) {
            $dbman->drop_table($table);
        }
        upgrade_main_savepoint(true, 2012031500.03);
    }
    if ($oldversion < 2012031500.04) {
        // Clean up the old admin settings.
        unset_config('restrictmodulesfor');
        unset_config('restrictbydefault');
        unset_config('defaultallowedmodules');
        upgrade_main_savepoint(true, 2012031500.04);
    }
    if ($oldversion < 2012032300.02) {
        // Migrate the old admin debug setting.
        if ($CFG->debug == 38911) {
            set_config('debug', DEBUG_DEVELOPER);
        } else {
            if ($CFG->debug == 6143) {
                set_config('debug', DEBUG_ALL);
            }
        }
        upgrade_main_savepoint(true, 2012032300.02);
    }
    if ($oldversion < 2012042300.0) {
        // This change makes the course_section index unique.
        // Look for any duplicate course_sections entries. There should not be
        // any but on some busy systems we found a few, maybe due to previous
        // bugs.
        $transaction = $DB->start_delegated_transaction();
        $rs = $DB->get_recordset_sql('
                SELECT DISTINCT
                    cs.id, cs.course
                FROM
                    {course_sections} cs
                    INNER JOIN {course_sections} older
                        ON cs.course = older.course AND cs.section = older.section
                        AND older.id < cs.id');
        foreach ($rs as $rec) {
            $DB->delete_records('course_sections', array('id' => $rec->id));
            // We can't use rebuild_course_cache() here because introducing sectioncache later
            // so reset modinfo manually.
            $DB->set_field('course', 'modinfo', null, array('id' => $rec->course));
        }
        $rs->close();
        $transaction->allow_commit();
        // XMLDB does not allow changing index uniqueness - instead we must drop
        // index then add it again.
        // MDL-46182: The query to make the index unique uses the index,
        // so the removal of the non-unique version needs to happen after any
        // data changes have been made.
        $table = new xmldb_table('course_sections');
        $index = new xmldb_index('course_section', XMLDB_INDEX_NOTUNIQUE, array('course', 'section'));
        // Conditionally launch drop index course_section.
        if ($dbman->index_exists($table, $index)) {
            $dbman->drop_index($table, $index);
        }
        // Define index course_section (unique) to be added to course_sections
        $index = new xmldb_index('course_section', XMLDB_INDEX_UNIQUE, array('course', 'section'));
        // Conditionally launch add index course_section
        if (!$dbman->index_exists($table, $index)) {
            $dbman->add_index($table, $index);
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2012042300.0);
    }
    if ($oldversion < 2012042300.02) {
        require_once $CFG->dirroot . '/completion/criteria/completion_criteria.php';
        // Delete orphaned criteria which were left when modules were removed
        if ($DB->get_dbfamily() === 'mysql') {
            $sql = "DELETE cc FROM {course_completion_criteria} cc\n                    LEFT JOIN {course_modules} cm ON cm.id = cc.moduleinstance\n                    WHERE cm.id IS NULL AND cc.criteriatype = " . COMPLETION_CRITERIA_TYPE_ACTIVITY;
        } else {
            $sql = "DELETE FROM {course_completion_criteria}\n                    WHERE NOT EXISTS (\n                        SELECT 'x' FROM {course_modules}\n                        WHERE {course_modules}.id = {course_completion_criteria}.moduleinstance)\n                    AND {course_completion_criteria}.criteriatype = " . COMPLETION_CRITERIA_TYPE_ACTIVITY;
        }
        $DB->execute($sql);
        // Main savepoint reached
        upgrade_main_savepoint(true, 2012042300.02);
    }
    if ($oldversion < 2012050300.01) {
        // Make sure deleted users do not have picture flag.
        $DB->set_field('user', 'picture', 0, array('deleted' => 1, 'picture' => 1));
        upgrade_main_savepoint(true, 2012050300.01);
    }
    if ($oldversion < 2012050300.02) {
        // Changing precision of field picture on table user to (10)
        $table = new xmldb_table('user');
        $field = new xmldb_field('picture', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0', 'secret');
        // Launch change of precision for field picture
        $dbman->change_field_precision($table, $field);
        // Main savepoint reached
        upgrade_main_savepoint(true, 2012050300.02);
    }
    if ($oldversion < 2012050300.03) {
        // Define field coursedisplay to be added to course
        $table = new xmldb_table('course');
        $field = new xmldb_field('coursedisplay', XMLDB_TYPE_INTEGER, '2', null, XMLDB_NOTNULL, null, '0', 'completionnotify');
        // Conditionally launch add field coursedisplay
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        // Since structure of 'course' table has changed we need to re-read $SITE from DB.
        $SITE = $DB->get_record('course', array('id' => $SITE->id));
        $COURSE = clone $SITE;
        // Main savepoint reached
        upgrade_main_savepoint(true, 2012050300.03);
    }
    if ($oldversion < 2012050300.04) {
        // Define table course_display to be dropped
        $table = new xmldb_table('course_display');
        // Conditionally launch drop table for course_display
        if ($dbman->table_exists($table)) {
            $dbman->drop_table($table);
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2012050300.04);
    }
    if ($oldversion < 2012050300.05) {
        // Clean up removed admin setting.
        unset_config('navlinkcoursesections');
        upgrade_main_savepoint(true, 2012050300.05);
    }
    if ($oldversion < 2012050400.01) {
        // Define index sortorder (not unique) to be added to course
        $table = new xmldb_table('course');
        $index = new xmldb_index('sortorder', XMLDB_INDEX_NOTUNIQUE, array('sortorder'));
        // Conditionally launch add index sortorder
        if (!$dbman->index_exists($table, $index)) {
            $dbman->add_index($table, $index);
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2012050400.01);
    }
    if ($oldversion < 2012050400.02) {
        // Clean up removed admin setting.
        unset_config('enablecourseajax');
        upgrade_main_savepoint(true, 2012050400.02);
    }
    if ($oldversion < 2012051100.01) {
        // Define field idnumber to be added to groups
        $table = new xmldb_table('groups');
        $field = new xmldb_field('idnumber', XMLDB_TYPE_CHAR, '100', null, XMLDB_NOTNULL, null, null, 'courseid');
        $index = new xmldb_index('idnumber', XMLDB_INDEX_NOTUNIQUE, array('idnumber'));
        // Conditionally launch add field idnumber
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        // Conditionally launch add index idnumber
        if (!$dbman->index_exists($table, $index)) {
            $dbman->add_index($table, $index);
        }
        // Define field idnumber to be added to groupings
        $table = new xmldb_table('groupings');
        $field = new xmldb_field('idnumber', XMLDB_TYPE_CHAR, '100', null, XMLDB_NOTNULL, null, null, 'name');
        $index = new xmldb_index('idnumber', XMLDB_INDEX_NOTUNIQUE, array('idnumber'));
        // Conditionally launch add field idnumber
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        // Conditionally launch add index idnumber
        if (!$dbman->index_exists($table, $index)) {
            $dbman->add_index($table, $index);
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2012051100.01);
    }
    if ($oldversion < 2012051100.03) {
        // Amend course table to add sectioncache cache
        $table = new xmldb_table('course');
        $field = new xmldb_field('sectioncache', XMLDB_TYPE_TEXT, null, null, null, null, null, 'showgrades');
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        // Amend course_sections to add date, time and groupingid availability
        // conditions and a setting about whether to show them
        $table = new xmldb_table('course_sections');
        $field = new xmldb_field('availablefrom', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0', 'visible');
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        $field = new xmldb_field('availableuntil', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0', 'availablefrom');
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        $field = new xmldb_field('showavailability', XMLDB_TYPE_INTEGER, '1', null, XMLDB_NOTNULL, null, '0', 'availableuntil');
        // Conditionally launch add field showavailability
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        $field = new xmldb_field('groupingid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0', 'showavailability');
        // Conditionally launch add field groupingid
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        // Since structure of 'course' table has changed we need to re-read $SITE from DB.
        $SITE = $DB->get_record('course', array('id' => $SITE->id));
        $COURSE = clone $SITE;
        // Add course_sections_availability to add completion & grade availability conditions
        $table = new xmldb_table('course_sections_availability');
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('coursesectionid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null);
        $table->add_field('sourcecmid', XMLDB_TYPE_INTEGER, '10', null, null, null, null);
        $table->add_field('requiredcompletion', XMLDB_TYPE_INTEGER, '1', null, null, null, null);
        $table->add_field('gradeitemid', XMLDB_TYPE_INTEGER, '10', null, null, null, null);
        $table->add_field('grademin', XMLDB_TYPE_NUMBER, '10, 5', null, null, null, null);
        $table->add_field('grademax', XMLDB_TYPE_NUMBER, '10, 5', null, null, null, null);
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->add_key('coursesectionid', XMLDB_KEY_FOREIGN, array('coursesectionid'), 'course_sections', array('id'));
        $table->add_key('sourcecmid', XMLDB_KEY_FOREIGN, array('sourcecmid'), 'course_modules', array('id'));
        $table->add_key('gradeitemid', XMLDB_KEY_FOREIGN, array('gradeitemid'), 'grade_items', array('id'));
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2012051100.03);
    }
    if ($oldversion < 2012052100.0) {
        // Define field referencefileid to be added to files.
        $table = new xmldb_table('files');
        // Define field referencefileid to be added to files.
        $field = new xmldb_field('referencefileid', XMLDB_TYPE_INTEGER, '10', null, null, null, null, 'sortorder');
        // Conditionally launch add field referencefileid.
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        // Define field referencelastsync to be added to files.
        $field = new xmldb_field('referencelastsync', XMLDB_TYPE_INTEGER, '10', null, null, null, null, 'referencefileid');
        // Conditionally launch add field referencelastsync.
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        // Define field referencelifetime to be added to files.
        $field = new xmldb_field('referencelifetime', XMLDB_TYPE_INTEGER, '10', null, null, null, null, 'referencelastsync');
        // Conditionally launch add field referencelifetime.
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        $key = new xmldb_key('referencefileid', XMLDB_KEY_FOREIGN, array('referencefileid'), 'files_reference', array('id'));
        // Launch add key referencefileid
        $dbman->add_key($table, $key);
        // Define table files_reference to be created.
        $table = new xmldb_table('files_reference');
        // Adding fields to table files_reference.
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('repositoryid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null);
        $table->add_field('lastsync', XMLDB_TYPE_INTEGER, '10', null, null, null, null);
        $table->add_field('lifetime', XMLDB_TYPE_INTEGER, '10', null, null, null, null);
        $table->add_field('reference', XMLDB_TYPE_TEXT, null, null, null, null, null);
        // Adding keys to table files_reference.
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->add_key('repositoryid', XMLDB_KEY_FOREIGN, array('repositoryid'), 'repository_instances', array('id'));
        // Conditionally launch create table for files_reference
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2012052100.0);
    }
    if ($oldversion < 2012052500.03) {
        // fix invalid course_completion_records MDL-27368
        //first get all instances of duplicate records
        $sql = 'SELECT userid, course FROM {course_completions} WHERE (deleted IS NULL OR deleted <> 1) GROUP BY userid, course HAVING (count(id) > 1)';
        $duplicates = $DB->get_recordset_sql($sql, array());
        foreach ($duplicates as $duplicate) {
            $pointer = 0;
            //now get all the records for this user/course
            $sql = 'userid = ? AND course = ? AND (deleted IS NULL OR deleted <> 1)';
            $completions = $DB->get_records_select('course_completions', $sql, array($duplicate->userid, $duplicate->course), 'timecompleted DESC, timestarted DESC');
            $needsupdate = false;
            $origcompletion = null;
            foreach ($completions as $completion) {
                $pointer++;
                if ($pointer === 1) {
                    //keep 1st record but delete all others.
                    $origcompletion = $completion;
                } else {
                    //we need to keep the "oldest" of all these fields as the valid completion record.
                    $fieldstocheck = array('timecompleted', 'timestarted', 'timeenrolled');
                    foreach ($fieldstocheck as $f) {
                        if ($origcompletion->{$f} > $completion->{$f}) {
                            $origcompletion->{$f} = $completion->{$f};
                            $needsupdate = true;
                        }
                    }
                    $DB->delete_records('course_completions', array('id' => $completion->id));
                }
            }
            if ($needsupdate) {
                $DB->update_record('course_completions', $origcompletion);
            }
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2012052500.03);
    }
    if ($oldversion < 2012052900.0) {
        // Clean up all duplicate records in the course_completions table in preparation
        // for adding a new index there.
        upgrade_course_completion_remove_duplicates('course_completions', array('userid', 'course'), array('timecompleted', 'timestarted', 'timeenrolled'));
        // Main savepoint reached
        upgrade_main_savepoint(true, 2012052900.0);
    }
    if ($oldversion < 2012052900.01) {
        // Add indexes to prevent new duplicates in the course_completions table.
        // Define index useridcourse (unique) to be added to course_completions
        $table = new xmldb_table('course_completions');
        $index = new xmldb_index('useridcourse', XMLDB_INDEX_UNIQUE, array('userid', 'course'));
        // Conditionally launch add index useridcourse
        if (!$dbman->index_exists($table, $index)) {
            $dbman->add_index($table, $index);
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2012052900.01);
    }
    if ($oldversion < 2012052900.02) {
        // Clean up all duplicate records in the course_completion_crit_compl table in preparation
        // for adding a new index there.
        upgrade_course_completion_remove_duplicates('course_completion_crit_compl', array('userid', 'course', 'criteriaid'), array('timecompleted'));
        // Main savepoint reached
        upgrade_main_savepoint(true, 2012052900.02);
    }
    if ($oldversion < 2012052900.03) {
        // Add indexes to prevent new duplicates in the course_completion_crit_compl table.
        // Define index useridcoursecriteraid (unique) to be added to course_completion_crit_compl
        $table = new xmldb_table('course_completion_crit_compl');
        $index = new xmldb_index('useridcoursecriteraid', XMLDB_INDEX_UNIQUE, array('userid', 'course', 'criteriaid'));
        // Conditionally launch add index useridcoursecriteraid
        if (!$dbman->index_exists($table, $index)) {
            $dbman->add_index($table, $index);
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2012052900.03);
    }
    if ($oldversion < 2012052900.04) {
        // Clean up all duplicate records in the course_completion_aggr_methd table in preparation
        // for adding a new index there.
        upgrade_course_completion_remove_duplicates('course_completion_aggr_methd', array('course', 'criteriatype'));
        // Main savepoint reached
        upgrade_main_savepoint(true, 2012052900.04);
    }
    if ($oldversion < 2012052900.05) {
        // Add indexes to prevent new duplicates in the course_completion_aggr_methd table.
        // Define index coursecriteratype (unique) to be added to course_completion_aggr_methd
        $table = new xmldb_table('course_completion_aggr_methd');
        $index = new xmldb_index('coursecriteriatype', XMLDB_INDEX_UNIQUE, array('course', 'criteriatype'));
        // Conditionally launch add index coursecriteratype
        if (!$dbman->index_exists($table, $index)) {
            $dbman->add_index($table, $index);
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2012052900.05);
    }
    if ($oldversion < 2012060600.01) {
        // Add field referencehash to files_reference
        $table = new xmldb_table('files_reference');
        $field = new xmldb_field('referencehash', XMLDB_TYPE_CHAR, '40', null, XMLDB_NOTNULL, null, null, 'reference');
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        upgrade_main_savepoint(true, 2012060600.01);
    }
    if ($oldversion < 2012060600.02) {
        // Populate referencehash field with SHA1 hash of the reference - this shoudl affect only 2.3dev sites
        // that were using the feature for testing. Production sites have the table empty.
        $rs = $DB->get_recordset('files_reference', null, '', 'id, reference');
        foreach ($rs as $record) {
            $hash = sha1($record->reference);
            $DB->set_field('files_reference', 'referencehash', $hash, array('id' => $record->id));
        }
        $rs->close();
        upgrade_main_savepoint(true, 2012060600.02);
    }
    if ($oldversion < 2012060600.03) {
        // Merge duplicate records in files_reference that were created during the development
        // phase at 2.3dev sites. This is needed so we can create the unique index over
        // (repositoryid, referencehash) fields.
        $sql = "SELECT repositoryid, referencehash, MIN(id) AS minid\n                  FROM {files_reference}\n              GROUP BY repositoryid, referencehash\n                HAVING COUNT(*) > 1";
        $duprs = $DB->get_recordset_sql($sql);
        foreach ($duprs as $duprec) {
            // get the list of all ids in {files_reference} that need to be remapped
            $dupids = $DB->get_records_select('files_reference', "repositoryid = ? AND referencehash = ? AND id > ?", array($duprec->repositoryid, $duprec->referencehash, $duprec->minid), '', 'id');
            $dupids = array_keys($dupids);
            // relink records in {files} that are now referring to a duplicate record
            // in {files_reference} to refer to the first one
            list($subsql, $subparams) = $DB->get_in_or_equal($dupids);
            $DB->set_field_select('files', 'referencefileid', $duprec->minid, "referencefileid {$subsql}", $subparams);
            // and finally remove all orphaned records from {files_reference}
            $DB->delete_records_list('files_reference', 'id', $dupids);
        }
        $duprs->close();
        upgrade_main_savepoint(true, 2012060600.03);
    }
    if ($oldversion < 2012060600.04) {
        // Add a unique index over repositoryid and referencehash fields in files_reference table
        $table = new xmldb_table('files_reference');
        $index = new xmldb_index('uq_external_file', XMLDB_INDEX_UNIQUE, array('repositoryid', 'referencehash'));
        if (!$dbman->index_exists($table, $index)) {
            $dbman->add_index($table, $index);
        }
        upgrade_main_savepoint(true, 2012060600.04);
    }
    if ($oldversion < 2012061800.01) {
        // Define field screenreader to be dropped from user
        $table = new xmldb_table('user');
        $field = new xmldb_field('ajax');
        // Conditionally launch drop field screenreader
        if ($dbman->field_exists($table, $field)) {
            $dbman->drop_field($table, $field);
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2012061800.01);
    }
    if ($oldversion < 2012062000.0) {
        // Add field newcontextid to backup_files_template
        $table = new xmldb_table('backup_files_template');
        $field = new xmldb_field('newcontextid', XMLDB_TYPE_INTEGER, '10', null, null, null, null, 'info');
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        upgrade_main_savepoint(true, 2012062000.0);
    }
    if ($oldversion < 2012062000.01) {
        // Add field newitemid to backup_files_template
        $table = new xmldb_table('backup_files_template');
        $field = new xmldb_field('newitemid', XMLDB_TYPE_INTEGER, '10', null, null, null, null, 'newcontextid');
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        upgrade_main_savepoint(true, 2012062000.01);
    }
    // Moodle v2.3.0 release upgrade line
    // Put any upgrade step following this
    if ($oldversion < 2012062500.02) {
        // Drop some old backup tables, not used anymore
        // Define table backup_files to be dropped
        $table = new xmldb_table('backup_files');
        // Conditionally launch drop table for backup_files
        if ($dbman->table_exists($table)) {
            $dbman->drop_table($table);
        }
        // Define table backup_ids to be dropped
        $table = new xmldb_table('backup_ids');
        // Conditionally launch drop table for backup_ids
        if ($dbman->table_exists($table)) {
            $dbman->drop_table($table);
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2012062500.02);
    }
    if ($oldversion < 2012070600.04) {
        // Define table course_modules_avail_fields to be created
        $table = new xmldb_table('course_modules_avail_fields');
        // Adding fields to table course_modules_avail_fields
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('coursemoduleid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null);
        $table->add_field('userfield', XMLDB_TYPE_CHAR, '50', null, null, null, null);
        $table->add_field('customfieldid', XMLDB_TYPE_INTEGER, '10', null, null, null, null);
        $table->add_field('operator', XMLDB_TYPE_CHAR, '20', null, XMLDB_NOTNULL, null, null);
        $table->add_field('value', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null);
        // Adding keys to table course_modules_avail_fields
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->add_key('coursemoduleid', XMLDB_KEY_FOREIGN, array('coursemoduleid'), 'course_modules', array('id'));
        // Conditionally launch create table for course_modules_avail_fields
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2012070600.04);
    }
    if ($oldversion < 2012070600.05) {
        // Define table course_sections_avail_fields to be created
        $table = new xmldb_table('course_sections_avail_fields');
        // Adding fields to table course_sections_avail_fields
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('coursesectionid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null);
        $table->add_field('userfield', XMLDB_TYPE_CHAR, '50', null, null, null, null);
        $table->add_field('customfieldid', XMLDB_TYPE_INTEGER, '10', null, null, null, null);
        $table->add_field('operator', XMLDB_TYPE_CHAR, '20', null, XMLDB_NOTNULL, null, null);
        $table->add_field('value', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null);
        // Adding keys to table course_sections_avail_fields
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->add_key('coursesectionid', XMLDB_KEY_FOREIGN, array('coursesectionid'), 'course_sections', array('id'));
        // Conditionally launch create table for course_sections_avail_fields
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2012070600.05);
    }
    if ($oldversion < 2012070600.06) {
        // Drop "deleted" fields
        $table = new xmldb_table('course_completions');
        $field = new xmldb_field('timenotified');
        $field = new xmldb_field('deleted');
        // Conditionally launch drop field deleted from course_completions
        if ($dbman->field_exists($table, $field)) {
            $dbman->drop_field($table, $field);
        }
        $field = new xmldb_field('timenotified');
        // Conditionally launch drop field timenotified from course_completions
        if ($dbman->field_exists($table, $field)) {
            $dbman->drop_field($table, $field);
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2012070600.06);
    }
    if ($oldversion < 2012070600.07) {
        $table = new xmldb_table('course_completion_crit_compl');
        $field = new xmldb_field('deleted');
        // Conditionally launch drop field deleted from course_completion_crit_compl
        if ($dbman->field_exists($table, $field)) {
            $dbman->drop_field($table, $field);
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2012070600.07);
    }
    if ($oldversion < 2012070600.08) {
        // Drop unused table "course_completion_notify"
        $table = new xmldb_table('course_completion_notify');
        // Conditionally launch drop table course_completion_notify
        if ($dbman->table_exists($table)) {
            $dbman->drop_table($table);
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2012070600.08);
    }
    if ($oldversion < 2012070600.09) {
        // Define index path (not unique) to be added to context
        $table = new xmldb_table('context');
        $index = new xmldb_index('path', XMLDB_INDEX_NOTUNIQUE, array('path'), array('varchar_pattern_ops'));
        // Recreate index with new pattern hint
        if ($DB->get_dbfamily() === 'postgres') {
            if ($dbman->index_exists($table, $index)) {
                $dbman->drop_index($table, $index);
            }
            $dbman->add_index($table, $index);
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2012070600.09);
    }
    if ($oldversion < 2012070600.1) {
        // Define index name (unique) to be dropped form role
        $table = new xmldb_table('role');
        $index = new xmldb_index('name', XMLDB_INDEX_UNIQUE, array('name'));
        // Conditionally launch drop index name
        if ($dbman->index_exists($table, $index)) {
            $dbman->drop_index($table, $index);
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2012070600.1);
    }
    if ($oldversion < 2012070600.11) {
        // Define index component-itemid-userid (not unique) to be added to role_assignments
        $table = new xmldb_table('role_assignments');
        $index = new xmldb_index('component-itemid-userid', XMLDB_INDEX_NOTUNIQUE, array('component', 'itemid', 'userid'));
        // Conditionally launch add index component-itemid-userid
        if (!$dbman->index_exists($table, $index)) {
            $dbman->add_index($table, $index);
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2012070600.11);
    }
    if ($oldversion < 2012071900.01) {
        // Cleanup after simpeltests tool
        capabilities_cleanup('tool_unittest');
        unset_all_config_for_plugin('tool_unittest');
        upgrade_main_savepoint(true, 2012071900.01);
    }
    if ($oldversion < 2012072400.0) {
        // Remove obsolete xhtml strict setting - use THEME->doctype in theme config if necessary,
        // see theme_config->doctype in lib/outputlib.php for more details.
        unset_config('xmlstrictheaders');
        upgrade_main_savepoint(true, 2012072400.0);
    }
    if ($oldversion < 2012072401.0) {
        // Saves orphaned questions from the Dark Side
        upgrade_save_orphaned_questions();
        // Main savepoint reached
        upgrade_main_savepoint(true, 2012072401.0);
    }
    if ($oldversion < 2012072600.01) {
        // Handle events with empty eventtype //MDL-32827
        $DB->set_field('event', 'eventtype', 'site', array('eventtype' => '', 'courseid' => $SITE->id));
        $DB->set_field_select('event', 'eventtype', 'due', "eventtype = '' AND courseid != 0 AND groupid = 0 AND (modulename = 'assignment' OR modulename = 'assign')");
        $DB->set_field_select('event', 'eventtype', 'course', "eventtype = '' AND courseid != 0 AND groupid = 0");
        $DB->set_field_select('event', 'eventtype', 'group', "eventtype = '' AND groupid != 0");
        $DB->set_field_select('event', 'eventtype', 'user', "eventtype = '' AND userid != 0");
        // Main savepoint reached
        upgrade_main_savepoint(true, 2012072600.01);
    }
    if ($oldversion < 2012080200.02) {
        // Drop obsolete question upgrade field that should have been added to the install.xml.
        $table = new xmldb_table('question');
        $field = new xmldb_field('oldquestiontextformat', XMLDB_TYPE_INTEGER, '2', null, XMLDB_NOTNULL, null, '0');
        if ($dbman->field_exists($table, $field)) {
            $dbman->drop_field($table, $field);
        }
        upgrade_main_savepoint(true, 2012080200.02);
    }
    if ($oldversion < 2012081400.01) {
        // Move the ability to disable blogs to its own setting MDL-25012.
        if (isset($CFG->bloglevel)) {
            // Only change settings if existing setting was set.
            if (empty($CFG->bloglevel)) {
                set_config('enableblogs', 0);
                // Now set the bloglevel to a valid setting as the disabled setting has been removed.
                // This prevents confusing results when users enable the blog system in future.
                set_config('bloglevel', BLOG_USER_LEVEL);
            } else {
                set_config('enableblogs', 1);
            }
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2012081400.01);
    }
    if ($oldversion < 2012081600.01) {
        // Delete removed setting - Google Maps API V2 will not work in 2013.
        unset_config('googlemapkey');
        upgrade_main_savepoint(true, 2012081600.01);
    }
    if ($oldversion < 2012082300.01) {
        // Add more custom enrol fields.
        $table = new xmldb_table('enrol');
        $field = new xmldb_field('customint5', XMLDB_TYPE_INTEGER, '10', null, null, null, null, 'customint4');
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        $field = new xmldb_field('customint6', XMLDB_TYPE_INTEGER, '10', null, null, null, null, 'customint5');
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        $field = new xmldb_field('customint7', XMLDB_TYPE_INTEGER, '10', null, null, null, null, 'customint6');
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        $field = new xmldb_field('customint8', XMLDB_TYPE_INTEGER, '10', null, null, null, null, 'customint7');
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        $field = new xmldb_field('customchar3', XMLDB_TYPE_CHAR, '1333', null, null, null, null, 'customchar2');
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        $field = new xmldb_field('customtext3', XMLDB_TYPE_TEXT, null, null, null, null, null, 'customtext2');
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        $field = new xmldb_field('customtext4', XMLDB_TYPE_TEXT, null, null, null, null, null, 'customtext3');
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2012082300.01);
    }
    if ($oldversion < 2012082300.02) {
        // Define field component to be added to groups_members
        $table = new xmldb_table('groups_members');
        $field = new xmldb_field('component', XMLDB_TYPE_CHAR, '100', null, XMLDB_NOTNULL, null, null, 'timeadded');
        // Conditionally launch add field component
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        // Define field itemid to be added to groups_members
        $field = new xmldb_field('itemid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0', 'component');
        // Conditionally launch add field itemid
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2012082300.02);
    }
    if ($oldversion < 2012090500.0) {
        $subquery = 'SELECT b.id FROM {blog_external} b where b.id = ' . $DB->sql_cast_char2int('{post}.content', true);
        $sql = 'DELETE FROM {post}
                      WHERE {post}.module = \'blog_external\'
                            AND NOT EXISTS (' . $subquery . ')
                            AND ' . $DB->sql_isnotempty('post', 'uniquehash', false, false);
        $DB->execute($sql);
        upgrade_main_savepoint(true, 2012090500.0);
    }
    if ($oldversion < 2012090700.01) {
        // Add a category field in the course_request table
        $table = new xmldb_table('course_request');
        $field = new xmldb_field('category', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, 0, 'summaryformat');
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2012090700.01);
    }
    if ($oldversion < 2012091700.0) {
        // Dropping screenreader field from user.
        $table = new xmldb_table('user');
        $field = new xmldb_field('screenreader');
        if ($dbman->field_exists($table, $field)) {
            $dbman->drop_field($table, $field);
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2012091700.0);
    }
    if ($oldversion < 2012092100.01) {
        // Some folders still have a sortorder set, which is used for main files but is not
        // supported by the folder resource. We reset the value here.
        $sql = 'UPDATE {files} SET sortorder = ? WHERE component = ? AND filearea = ? AND sortorder <> ?';
        $DB->execute($sql, array(0, 'mod_folder', 'content', 0));
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2012092100.01);
    }
    if ($oldversion < 2012092600.0) {
        // Define index idname (unique) to be added to tag
        $table = new xmldb_table('tag');
        $index = new xmldb_index('idname', XMLDB_INDEX_UNIQUE, array('id', 'name'));
        // Conditionally launch add index idname
        if (!$dbman->index_exists($table, $index)) {
            $dbman->add_index($table, $index);
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2012092600.0);
    }
    if ($oldversion < 2012101500.01) {
        // Find all orphaned blog associations that might exist.
        $sql = "SELECT ba.id\n                  FROM {blog_association} ba\n             LEFT JOIN {post} p\n                    ON p.id = ba.blogid\n                 WHERE p.id IS NULL";
        $orphanedrecordids = $DB->get_records_sql($sql);
        // Now delete these associations.
        foreach ($orphanedrecordids as $orphanedrecord) {
            $DB->delete_records('blog_association', array('id' => $orphanedrecord->id));
        }
        upgrade_main_savepoint(true, 2012101500.01);
    }
    if ($oldversion < 2012101800.02) {
        // Renaming backups using previous file naming convention.
        upgrade_rename_old_backup_files_using_shortname();
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2012101800.02);
    }
    if ($oldversion < 2012103001.0) {
        // create new event_subscriptions table
        $table = new xmldb_table('event_subscriptions');
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('url', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null);
        $table->add_field('courseid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0');
        $table->add_field('groupid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0');
        $table->add_field('userid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0');
        $table->add_field('pollinterval', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0');
        $table->add_field('lastupdated', XMLDB_TYPE_INTEGER, '10', null, null, null, null);
        $table->add_field('name', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null);
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2012103001.0);
    }
    if ($oldversion < 2012103002.0) {
        // Add subscription field to the event table
        $table = new xmldb_table('event');
        $field = new xmldb_field('subscriptionid', XMLDB_TYPE_INTEGER, '10', null, null, null, null, 'timemodified');
        // Conditionally launch add field subscriptionid
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        upgrade_main_savepoint(true, 2012103002.0);
    }
    if ($oldversion < 2012103003.0) {
        // Fix uuid field in event table to match RFC-2445 UID property.
        $table = new xmldb_table('event');
        $field = new xmldb_field('uuid', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, 'visible');
        // The column already exists, so make sure there are no nulls (crazy mysql).
        $DB->set_field_select('event', 'uuid', '', "uuid IS NULL");
        // Changing precision of field uuid on table event to (255).
        $dbman->change_field_precision($table, $field);
        // Main savepoint reached
        upgrade_main_savepoint(true, 2012103003.0);
    }
    if ($oldversion < 2012110200.0) {
        // Define table course_format_options to be created
        $table = new xmldb_table('course_format_options');
        // Adding fields to table course_format_options
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('courseid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null);
        $table->add_field('format', XMLDB_TYPE_CHAR, '21', null, XMLDB_NOTNULL, null, null);
        $table->add_field('sectionid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0', 'format');
        $table->add_field('name', XMLDB_TYPE_CHAR, '100', null, XMLDB_NOTNULL, null, null);
        $table->add_field('value', XMLDB_TYPE_TEXT, null, null, null, null, null);
        // Adding keys to table course_format_options
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->add_key('courseid', XMLDB_KEY_FOREIGN, array('courseid'), 'course', array('id'));
        // Adding indexes to table course_format_options
        $table->add_index('formatoption', XMLDB_INDEX_UNIQUE, array('courseid', 'format', 'sectionid', 'name'));
        // Conditionally launch create table for course_format_options
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        // Changing type of field format on table course to char with length 21
        $table = new xmldb_table('course');
        $field = new xmldb_field('format', XMLDB_TYPE_CHAR, '21', null, XMLDB_NOTNULL, null, 'topics', 'summaryformat');
        // Launch change of type for field format
        $dbman->change_field_type($table, $field);
        // Since structure of 'course' table has changed we need to re-read $SITE from DB.
        $SITE = $DB->get_record('course', array('id' => $SITE->id));
        $COURSE = clone $SITE;
        // Main savepoint reached
        upgrade_main_savepoint(true, 2012110200.0);
    }
    if ($oldversion < 2012110201.0) {
        // Copy fields 'coursedisplay', 'numsections', 'hiddensections' from table {course}
        // to table {course_format_options} as the additional format options
        $fields = array();
        $table = new xmldb_table('course');
        foreach (array('coursedisplay', 'numsections', 'hiddensections') as $fieldname) {
            // first check that fields still exist
            $field = new xmldb_field($fieldname);
            if ($dbman->field_exists($table, $field)) {
                $fields[] = $fieldname;
            }
        }
        if (!empty($fields)) {
            $transaction = $DB->start_delegated_transaction();
            $rs = $DB->get_recordset_sql('SELECT id, format, ' . join(',', $fields) . '
                FROM {course}
                WHERE format <> ? AND format <> ?', array('scorm', 'social'));
            // (do not copy fields from scrom and social formats, we already know that they are not used)
            foreach ($rs as $rec) {
                foreach ($fields as $field) {
                    try {
                        $DB->insert_record('course_format_options', array('courseid' => $rec->id, 'format' => $rec->format, 'sectionid' => 0, 'name' => $field, 'value' => $rec->{$field}));
                    } catch (dml_exception $e) {
                        // index 'courseid,format,sectionid,name' violation
                        // continue; the entry in course_format_options already exists, use it
                    }
                }
            }
            $rs->close();
            $transaction->allow_commit();
            // Drop fields from table course
            foreach ($fields as $fieldname) {
                $field = new xmldb_field($fieldname);
                $dbman->drop_field($table, $field);
            }
        }
        // Since structure of 'course' table has changed we need to re-read $SITE from DB.
        $SITE = $DB->get_record('course', array('id' => $SITE->id));
        $COURSE = clone $SITE;
        // Main savepoint reached
        upgrade_main_savepoint(true, 2012110201.0);
    }
    if ($oldversion < 2012110700.01) {
        // Define field caller_component to be added to portfolio_log.
        $table = new xmldb_table('portfolio_log');
        $field = new xmldb_field('caller_component', XMLDB_TYPE_CHAR, '255', null, null, null, null, 'caller_file');
        // Conditionally launch add field caller_component.
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2012110700.01);
    }
    if ($oldversion < 2012111200.0) {
        // Define table temp_enroled_template to be created
        $table = new xmldb_table('temp_enroled_template');
        // Adding fields to table temp_enroled_template
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('userid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0');
        $table->add_field('courseid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0');
        $table->add_field('roleid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null);
        // Adding keys to table temp_enroled_template
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        // Adding indexes to table temp_enroled_template
        $table->add_index('userid', XMLDB_INDEX_NOTUNIQUE, array('userid'));
        $table->add_index('courseid', XMLDB_INDEX_NOTUNIQUE, array('courseid'));
        $table->add_index('roleid', XMLDB_INDEX_NOTUNIQUE, array('roleid'));
        // Conditionally launch create table for temp_enroled_template
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        // Define table temp_log_template to be created
        $table = new xmldb_table('temp_log_template');
        // Adding fields to table temp_log_template
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('userid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0');
        $table->add_field('course', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0');
        $table->add_field('action', XMLDB_TYPE_CHAR, '40', null, XMLDB_NOTNULL, null, null);
        // Adding keys to table temp_log_template
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        // Adding indexes to table temp_log_template
        $table->add_index('action', XMLDB_INDEX_NOTUNIQUE, array('action'));
        $table->add_index('course', XMLDB_INDEX_NOTUNIQUE, array('course'));
        $table->add_index('user', XMLDB_INDEX_NOTUNIQUE, array('userid'));
        $table->add_index('usercourseaction', XMLDB_INDEX_NOTUNIQUE, array('userid', 'course', 'action'));
        // Conditionally launch create table for temp_log_template
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2012111200.0);
    }
    if ($oldversion < 2012111200.01) {
        // Force the rebuild of the cache of every courses, some cached information could contain wrong icon references.
        $DB->execute('UPDATE {course} set modinfo = ?, sectioncache = ?', array(null, null));
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2012111200.01);
    }
    if ($oldversion < 2012111601.01) {
        // Clea up after old shared memory caching support.
        unset_config('cachetype');
        unset_config('rcache');
        unset_config('rcachettl');
        unset_config('intcachemax');
        unset_config('memcachedhosts');
        unset_config('memcachedpconn');
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2012111601.01);
    }
    if ($oldversion < 2012112100.0) {
        // Define field eventtype to be added to event_subscriptions.
        $table = new xmldb_table('event_subscriptions');
        $field = new xmldb_field('eventtype', XMLDB_TYPE_CHAR, '20', null, XMLDB_NOTNULL, null, null, 'userid');
        // Conditionally launch add field eventtype.
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2012112100.0);
    }
    // Moodle v2.4.0 release upgrade line
    // Put any upgrade step following this
    if ($oldversion < 2012120300.01) {
        // Make sure site-course has format='site' //MDL-36840
        if ($SITE->format !== 'site') {
            $DB->set_field('course', 'format', 'site', array('id' => $SITE->id));
            $SITE->format = 'site';
            $COURSE->format = 'site';
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2012120300.01);
    }
    if ($oldversion < 2012120300.04) {
        // Remove "_utf8" suffix from all langs in course table.
        $langs = $DB->get_records_sql("SELECT DISTINCT lang FROM {course} WHERE lang LIKE ?", array('%_utf8'));
        foreach ($langs as $lang => $unused) {
            $newlang = str_replace('_utf8', '', $lang);
            $sql = "UPDATE {course} SET lang = :newlang WHERE lang = :lang";
            $DB->execute($sql, array('newlang' => $newlang, 'lang' => $lang));
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2012120300.04);
    }
    if ($oldversion < 2012123000.0) {
        // Purge removed module filters and all their settings.
        $tables = array('filter_active', 'filter_config');
        foreach ($tables as $table) {
            $DB->delete_records_select($table, "filter LIKE 'mod/%'");
            $filters = $DB->get_records_sql("SELECT DISTINCT filter FROM {{$table}} WHERE filter LIKE 'filter/%'");
            foreach ($filters as $filter) {
                $DB->set_field($table, 'filter', substr($filter->filter, 7), array('filter' => $filter->filter));
            }
        }
        $configs = array('stringfilters', 'filterall');
        foreach ($configs as $config) {
            if ($filters = get_config(null, $config)) {
                $filters = explode(',', $filters);
                $newfilters = array();
                foreach ($filters as $filter) {
                    if (strpos($filter, '/') === false) {
                        $newfilters[] = $filter;
                    } else {
                        if (strpos($filter, 'filter/') === 0) {
                            $newfilters[] = substr($filter, 7);
                        }
                    }
                }
                $filters = implode(',', $newfilters);
                set_config($config, $filters);
            }
        }
        unset($tables);
        unset($table);
        unset($configs);
        unset($newfilters);
        unset($filters);
        unset($filter);
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2012123000.0);
    }
    if ($oldversion < 2013021100.01) {
        // Make sure there are no bogus nulls in old MySQL tables.
        $DB->set_field_select('user', 'password', '', "password IS NULL");
        // Changing precision of field password on table user to (255).
        $table = new xmldb_table('user');
        $field = new xmldb_field('password', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, 'username');
        // Launch change of precision for field password.
        $dbman->change_field_precision($table, $field);
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2013021100.01);
    }
    if ($oldversion < 2013021800.0) {
        // Add the site identifier to the cache config's file.
        $siteidentifier = $DB->get_field('config', 'value', array('name' => 'siteidentifier'));
        cache_helper::update_site_identifier($siteidentifier);
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2013021800.0);
    }
    if ($oldversion < 2013021801.0) {
        // Fixing possible wrong MIME types for SMART Notebook files.
        $extensions = array('%.gallery', '%.galleryitem', '%.gallerycollection', '%.nbk', '%.notebook', '%.xbk');
        $select = $DB->sql_like('filename', '?', false);
        foreach ($extensions as $extension) {
            $DB->set_field_select('files', 'mimetype', 'application/x-smarttech-notebook', $select, array($extension));
        }
        upgrade_main_savepoint(true, 2013021801.0);
    }
    if ($oldversion < 2013021801.01) {
        // This upgrade step is re-written under MDL-38228 (see below).
        /*
        // Retrieve the list of course_sections as a recordset to save memory
        $coursesections = $DB->get_recordset('course_sections', null, 'course, id', 'id, course, sequence');
        foreach ($coursesections as $coursesection) {
            // Retrieve all of the actual modules in this course and section combination to reduce DB calls
            $actualsectionmodules = $DB->get_records('course_modules',
                    array('course' => $coursesection->course, 'section' => $coursesection->id), '', 'id, section');
        
            // Break out the current sequence so that we can compare it
            $currentsequence = explode(',', $coursesection->sequence);
            $newsequence = array();
        
            // Check each of the modules in the current sequence
            foreach ($currentsequence as $module) {
                if (isset($actualsectionmodules[$module])) {
                    $newsequence[] = $module;
                    // We unset the actualsectionmodules so that we don't get duplicates and that we can add orphaned
                    // modules later
                    unset($actualsectionmodules[$module]);
                }
            }
        
            // Append any modules which have somehow been orphaned
            foreach ($actualsectionmodules as $module) {
                $newsequence[] = $module->id;
            }
        
            // Piece it all back together
            $sequence = implode(',', $newsequence);
        
            // Only update if there have been changes
            if ($sequence !== $coursesection->sequence) {
                $coursesection->sequence = $sequence;
                $DB->update_record('course_sections', $coursesection);
        
                // And clear the sectioncache and modinfo cache - they'll be regenerated on next use
                $course = new stdClass();
                $course->id = $coursesection->course;
                $course->sectioncache = null;
                $course->modinfo = null;
                $DB->update_record('course', $course);
            }
        }
        $coursesections->close();
        */
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2013021801.01);
    }
    if ($oldversion < 2013021902.0) {
        // ISO country change: Netherlands Antilles is split into BQ, CW & SX
        // http://www.iso.org/iso/iso_3166-1_newsletter_vi-8_split_of_the_dutch_antilles_final-en.pdf
        $sql = "UPDATE {user} SET country = '' WHERE country = ?";
        $DB->execute($sql, array('AN'));
        upgrade_main_savepoint(true, 2013021902.0);
    }
    if ($oldversion < 2013022600.0) {
        // Delete entries regarding invalid 'interests' option which breaks course.
        $DB->delete_records('course_sections_avail_fields', array('userfield' => 'interests'));
        $DB->delete_records('course_modules_avail_fields', array('userfield' => 'interests'));
        // Clear course cache (will be rebuilt on first visit) in case of changes to these.
        $DB->execute('UPDATE {course} set modinfo = ?, sectioncache = ?', array(null, null));
        upgrade_main_savepoint(true, 2013022600.0);
    }
    // Add index to field "timemodified" for grade_grades_history table.
    if ($oldversion < 2013030400.0) {
        $table = new xmldb_table('grade_grades_history');
        $field = new xmldb_field('timemodified');
        if ($dbman->field_exists($table, $field)) {
            $index = new xmldb_index('timemodified', XMLDB_INDEX_NOTUNIQUE, array('timemodified'));
            if (!$dbman->index_exists($table, $index)) {
                $dbman->add_index($table, $index);
            }
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2013030400.0);
    }
    if ($oldversion < 2013030400.02) {
        // Cleanup qformat blackboard settings.
        unset_all_config_for_plugin('qformat_blackboard');
        upgrade_main_savepoint(true, 2013030400.02);
    }
    // This is checking to see if the site has been running a specific version with a bug in it
    // because this upgrade step is slow and is only needed if the site has been running with the affected versions.
    if ($oldversion >= 2012062504.08 && $oldversion < 2012062504.13) {
        // This upgrade step is re-written under MDL-38228 (see below).
        /*
                // Retrieve the list of course_sections as a recordset to save memory.
                // This is to fix a regression caused by MDL-37939.
                // In this case the upgrade step is fixing records where:
                // The data in course_sections.sequence contains the correct module id
                // The section field for on the course modules table may have been updated to point to the incorrect id.
        
                // This query is looking for sections where the sequence is not in sync with the course_modules table.
                // The syntax for the like query is looking for a value in a comma separated list.
                // It adds a comma to either site of the list and then searches for LIKE '%,id,%'.
                $sequenceconcat = $DB->sql_concat("','", 's.sequence', "','");
                $moduleconcat = $DB->sql_concat("'%,'", 'cm.id', "',%'");
                $sql = 'SELECT s2.id, s2.course, s2.sequence
               FROM {course_sections} s2
               JOIN(
                   SELECT DISTINCT s.id
                   FROM
                   {course_modules} cm
                   JOIN {course_sections} s
                   ON
                       cm.course = s.course
                   WHERE cm.section != s.id AND ' . $sequenceconcat . ' LIKE ' . $moduleconcat . '
               ) d
               ON s2.id = d.id';
                $coursesections = $DB->get_recordset_sql($sql);
        
                foreach ($coursesections as $coursesection) {
           // Retrieve all of the actual modules in this course and section combination to reduce DB calls.
           $actualsectionmodules = $DB->get_records('course_modules',
                   array('course' => $coursesection->course, 'section' => $coursesection->id), '', 'id, section');
        
           // Break out the current sequence so that we can compare it.
           $currentsequence = explode(',', $coursesection->sequence);
           $orphanlist = array();
        
           // Check each of the modules in the current sequence.
           foreach ($currentsequence as $cmid) {
               if (!empty($cmid) && !isset($actualsectionmodules[$cmid])) {
                   $orphanlist[] = $cmid;
               }
           }
        
           if (!empty($orphanlist)) {
               list($sql, $params) = $DB->get_in_or_equal($orphanlist, SQL_PARAMS_NAMED);
               $sql = "id $sql";
        
               $DB->set_field_select('course_modules', 'section', $coursesection->id, $sql, $params);
        
               // And clear the sectioncache and modinfo cache - they'll be regenerated on next use.
               $course = new stdClass();
               $course->id = $coursesection->course;
               $course->sectioncache = null;
               $course->modinfo = null;
               $DB->update_record('course', $course);
           }
                }
                $coursesections->close();
        
                // No savepoint needed for this change.
        */
    }
    if ($oldversion < 2013032200.01) {
        // GD is now always available
        set_config('gdversion', 2);
        upgrade_main_savepoint(true, 2013032200.01);
    }
    if ($oldversion < 2013032600.03) {
        // Fixing possible wrong MIME type for MIME HTML (MHTML) files.
        $extensions = array('%.mht', '%.mhtml');
        $select = $DB->sql_like('filename', '?', false);
        foreach ($extensions as $extension) {
            $DB->set_field_select('files', 'mimetype', 'message/rfc822', $select, array($extension));
        }
        upgrade_main_savepoint(true, 2013032600.03);
    }
    if ($oldversion < 2013032600.04) {
        // MDL-31983 broke the quiz version number. Fix it.
        $DB->set_field('modules', 'version', '2013021500', array('name' => 'quiz', 'version' => '2013310100'));
        upgrade_main_savepoint(true, 2013032600.04);
    }
    if ($oldversion < 2013040200.0) {
        // Add openbadges tables.
        // Define table 'badge' to be created.
        $table = new xmldb_table('badge');
        // Adding fields to table 'badge'.
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null);
        $table->add_field('name', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, 'id');
        $table->add_field('description', XMLDB_TYPE_TEXT, null, null, null, null, null, 'name');
        $table->add_field('image', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null, 'description');
        $table->add_field('timecreated', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0', 'image');
        $table->add_field('timemodified', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0', 'timecreated');
        $table->add_field('usercreated', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null, 'timemodified');
        $table->add_field('usermodified', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null, 'usercreated');
        $table->add_field('issuername', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, 'usermodified');
        $table->add_field('issuerurl', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, 'issuername');
        $table->add_field('issuercontact', XMLDB_TYPE_CHAR, '255', null, null, null, null, 'issuerurl');
        $table->add_field('expiredate', XMLDB_TYPE_INTEGER, '10', null, null, null, null, 'issuercontact');
        $table->add_field('expireperiod', XMLDB_TYPE_INTEGER, '10', null, null, null, null, 'expiredate');
        $table->add_field('type', XMLDB_TYPE_INTEGER, '1', null, XMLDB_NOTNULL, null, '1', 'expireperiod');
        $table->add_field('courseid', XMLDB_TYPE_INTEGER, '10', null, null, null, null, 'type');
        $table->add_field('message', XMLDB_TYPE_TEXT, null, null, XMLDB_NOTNULL, null, null, 'courseid');
        $table->add_field('messagesubject', XMLDB_TYPE_TEXT, null, null, XMLDB_NOTNULL, null, null, 'message');
        $table->add_field('attachment', XMLDB_TYPE_INTEGER, '1', null, XMLDB_NOTNULL, null, '1', 'messagesubject');
        $table->add_field('notification', XMLDB_TYPE_INTEGER, '1', null, XMLDB_NOTNULL, null, '1', 'attachment');
        $table->add_field('status', XMLDB_TYPE_INTEGER, '1', null, XMLDB_NOTNULL, null, '0', 'notification');
        $table->add_field('nextcron', XMLDB_TYPE_INTEGER, '10', null, null, null, null, 'status');
        // Adding keys to table 'badge'.
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->add_key('fk_courseid', XMLDB_KEY_FOREIGN, array('courseid'), 'course', array('id'));
        $table->add_key('fk_usermodified', XMLDB_KEY_FOREIGN, array('usermodified'), 'user', array('id'));
        $table->add_key('fk_usercreated', XMLDB_KEY_FOREIGN, array('usercreated'), 'user', array('id'));
        // Adding indexes to table 'badge'.
        $table->add_index('type', XMLDB_INDEX_NOTUNIQUE, array('type'));
        // Conditionally launch create table for 'badge'.
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        // Define table 'badge_criteria' to be created.
        $table = new xmldb_table('badge_criteria');
        // Adding fields to table 'badge_criteria'.
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null);
        $table->add_field('badgeid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0', 'id');
        $table->add_field('criteriatype', XMLDB_TYPE_INTEGER, '10', null, null, null, null, 'badgeid');
        $table->add_field('method', XMLDB_TYPE_INTEGER, '1', null, XMLDB_NOTNULL, null, '1', 'criteriatype');
        // Adding keys to table 'badge_criteria'.
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->add_key('fk_badgeid', XMLDB_KEY_FOREIGN, array('badgeid'), 'badge', array('id'));
        // Adding indexes to table 'badge_criteria'.
        $table->add_index('criteriatype', XMLDB_INDEX_NOTUNIQUE, array('criteriatype'));
        $table->add_index('badgecriteriatype', XMLDB_INDEX_UNIQUE, array('badgeid', 'criteriatype'));
        // Conditionally launch create table for 'badge_criteria'.
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        // Define table 'badge_criteria_param' to be created.
        $table = new xmldb_table('badge_criteria_param');
        // Adding fields to table 'badge_criteria_param'.
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null);
        $table->add_field('critid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null, 'id');
        $table->add_field('name', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, 'critid');
        $table->add_field('value', XMLDB_TYPE_CHAR, '255', null, null, null, null, 'name');
        // Adding keys to table 'badge_criteria_param'.
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->add_key('fk_critid', XMLDB_KEY_FOREIGN, array('critid'), 'badge_criteria', array('id'));
        // Conditionally launch create table for 'badge_criteria_param'.
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        // Define table 'badge_issued' to be created.
        $table = new xmldb_table('badge_issued');
        // Adding fields to table 'badge_issued'.
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null);
        $table->add_field('badgeid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0', 'id');
        $table->add_field('userid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0', 'badgeid');
        $table->add_field('uniquehash', XMLDB_TYPE_TEXT, null, null, XMLDB_NOTNULL, null, null, 'userid');
        $table->add_field('dateissued', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0', 'uniquehash');
        $table->add_field('dateexpire', XMLDB_TYPE_INTEGER, '10', null, null, null, null, 'dateissued');
        $table->add_field('visible', XMLDB_TYPE_INTEGER, '1', null, XMLDB_NOTNULL, null, '0', 'dateexpire');
        $table->add_field('issuernotified', XMLDB_TYPE_INTEGER, '10', null, null, null, null, 'visible');
        // Adding keys to table 'badge_issued'.
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->add_key('fk_badgeid', XMLDB_KEY_FOREIGN, array('badgeid'), 'badge', array('id'));
        $table->add_key('fk_userid', XMLDB_KEY_FOREIGN, array('userid'), 'user', array('id'));
        $table->add_index('badgeuser', XMLDB_INDEX_UNIQUE, array('badgeid', 'userid'));
        // Conditionally launch create table for 'badge_issued'.
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        // Define table 'badge_criteria_met' to be created.
        $table = new xmldb_table('badge_criteria_met');
        // Adding fields to table 'badge_criteria_met'.
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null);
        $table->add_field('issuedid', XMLDB_TYPE_INTEGER, '10', null, null, null, null, 'id');
        $table->add_field('critid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null, 'issuedid');
        $table->add_field('userid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null, 'critid');
        $table->add_field('datemet', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null, 'userid');
        // Adding keys to table 'badge_criteria_met'
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->add_key('fk_critid', XMLDB_KEY_FOREIGN, array('critid'), 'badge_criteria', array('id'));
        $table->add_key('fk_userid', XMLDB_KEY_FOREIGN, array('userid'), 'user', array('id'));
        $table->add_key('fk_issuedid', XMLDB_KEY_FOREIGN, array('issuedid'), 'badge_issued', array('id'));
        // Conditionally launch create table for 'badge_criteria_met'.
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        // Define table 'badge_manual_award' to be created.
        $table = new xmldb_table('badge_manual_award');
        // Adding fields to table 'badge_manual_award'.
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null);
        $table->add_field('badgeid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null, 'id');
        $table->add_field('recipientid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null, 'badgeid');
        $table->add_field('issuerid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null, 'recipientid');
        $table->add_field('issuerrole', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null, 'issuerid');
        $table->add_field('datemet', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null, 'issuerrole');
        // Adding keys to table 'badge_manual_award'.
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->add_key('fk_badgeid', XMLDB_KEY_FOREIGN, array('badgeid'), 'badge', array('id'));
        $table->add_key('fk_recipientid', XMLDB_KEY_FOREIGN, array('recipientid'), 'user', array('id'));
        $table->add_key('fk_issuerid', XMLDB_KEY_FOREIGN, array('issuerid'), 'user', array('id'));
        $table->add_key('fk_issuerrole', XMLDB_KEY_FOREIGN, array('issuerrole'), 'role', array('id'));
        // Conditionally launch create table for 'badge_manual_award'.
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        // Define table 'badge_backpack' to be created.
        $table = new xmldb_table('badge_backpack');
        // Adding fields to table 'badge_backpack'.
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null);
        $table->add_field('userid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0', 'id');
        $table->add_field('email', XMLDB_TYPE_CHAR, '100', null, XMLDB_NOTNULL, null, null, 'userid');
        $table->add_field('backpackurl', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, 'email');
        $table->add_field('backpackuid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null, 'backpackurl');
        $table->add_field('backpackgid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null, 'backpackuid');
        $table->add_field('autosync', XMLDB_TYPE_INTEGER, '1', null, XMLDB_NOTNULL, null, '0', 'backpackgid');
        $table->add_field('password', XMLDB_TYPE_CHAR, '50', null, null, null, null, 'autosync');
        // Adding keys to table 'badge_backpack'.
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->add_key('fk_userid', XMLDB_KEY_FOREIGN, array('userid'), 'user', array('id'));
        // Conditionally launch create table for 'badge_backpack'.
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2013040200.0);
    }
    if ($oldversion < 2013040201.0) {
        // Convert name field in event table to text type as RFC-2445 doesn't have any limitation on it.
        $table = new xmldb_table('event');
        $field = new xmldb_field('name', XMLDB_TYPE_TEXT, null, null, XMLDB_NOTNULL, null, null);
        if ($dbman->field_exists($table, $field)) {
            $dbman->change_field_type($table, $field);
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2013040201.0);
    }
    if ($oldversion < 2013040300.01) {
        // Define field completionstartonenrol to be dropped from course.
        $table = new xmldb_table('course');
        $field = new xmldb_field('completionstartonenrol');
        // Conditionally launch drop field completionstartonenrol.
        if ($dbman->field_exists($table, $field)) {
            $dbman->drop_field($table, $field);
        }
        // Since structure of 'course' table has changed we need to re-read $SITE from DB.
        $SITE = $DB->get_record('course', array('id' => $SITE->id));
        $COURSE = clone $SITE;
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2013040300.01);
    }
    if ($oldversion < 2013041200.0) {
        // MDL-29877 Some bad restores created grade items with no category information.
        $sql = "UPDATE {grade_items}\n                   SET categoryid = courseid\n                 WHERE itemtype <> 'course' and itemtype <> 'category'\n                       AND categoryid IS NULL";
        $DB->execute($sql);
        upgrade_main_savepoint(true, 2013041200.0);
    }
    if ($oldversion < 2013041600.0) {
        // Copy constants from /course/lib.php instead of including the whole library:
        $c = array('FRONTPAGENEWS' => 0, 'FRONTPAGECOURSELIST' => 1, 'FRONTPAGECATEGORYNAMES' => 2, 'FRONTPAGETOPICONLY' => 3, 'FRONTPAGECATEGORYCOMBO' => 4, 'FRONTPAGEENROLLEDCOURSELIST' => 5, 'FRONTPAGEALLCOURSELIST' => 6, 'FRONTPAGECOURSESEARCH' => 7);
        // Update frontpage settings $CFG->frontpage and $CFG->frontpageloggedin. In 2.4 there was too much of hidden logic about them.
        // This script tries to make sure that with the new (more user-friendly) frontpage settings the frontpage looks as similar as possible to what it was before upgrade.
        $ncourses = $DB->count_records('course');
        foreach (array('frontpage', 'frontpageloggedin') as $configkey) {
            if ($frontpage = explode(',', $CFG->{$configkey})) {
                $newfrontpage = array();
                foreach ($frontpage as $v) {
                    switch ($v) {
                        case $c['FRONTPAGENEWS']:
                            // Not related to course listings, leave as it is.
                            $newfrontpage[] = $c['FRONTPAGENEWS'];
                            break;
                        case $c['FRONTPAGECOURSELIST']:
                            if ($configkey === 'frontpageloggedin' && empty($CFG->disablemycourses)) {
                                // In 2.4 unless prohibited in config, the "list of courses" was considered "list of enrolled courses" plus course search box.
                                $newfrontpage[] = $c['FRONTPAGEENROLLEDCOURSELIST'];
                            } else {
                                if ($ncourses <= 200) {
                                    // Still list of courses was only displayed in there were less than 200 courses in system. Otherwise - search box only.
                                    $newfrontpage[] = $c['FRONTPAGEALLCOURSELIST'];
                                    break;
                                    // skip adding search box
                                }
                            }
                            if (!in_array($c['FRONTPAGECOURSESEARCH'], $newfrontpage)) {
                                $newfrontpage[] = $c['FRONTPAGECOURSESEARCH'];
                            }
                            break;
                        case $c['FRONTPAGECATEGORYNAMES']:
                            // In 2.4 search box was displayed automatically after categories list. In 2.5 it is displayed as a separate setting.
                            $newfrontpage[] = $c['FRONTPAGECATEGORYNAMES'];
                            if (!in_array($c['FRONTPAGECOURSESEARCH'], $newfrontpage)) {
                                $newfrontpage[] = $c['FRONTPAGECOURSESEARCH'];
                            }
                            break;
                        case $c['FRONTPAGECATEGORYCOMBO']:
                            $maxcourses = empty($CFG->numcoursesincombo) ? 500 : $CFG->numcoursesincombo;
                            // In 2.4 combo list was not displayed if there are more than $CFG->numcoursesincombo courses in the system.
                            if ($ncourses < $maxcourses) {
                                $newfrontpage[] = $c['FRONTPAGECATEGORYCOMBO'];
                            }
                            if (!in_array($c['FRONTPAGECOURSESEARCH'], $newfrontpage)) {
                                $newfrontpage[] = $c['FRONTPAGECOURSESEARCH'];
                            }
                            break;
                    }
                }
                set_config($configkey, join(',', $newfrontpage));
            }
        }
        // $CFG->numcoursesincombo no longer affects whether the combo list is displayed. Setting is deprecated.
        unset_config('numcoursesincombo');
        upgrade_main_savepoint(true, 2013041600.0);
    }
    if ($oldversion < 2013041601.0) {
        // Create a new 'badge_external' table first.
        // Define table 'badge_external' to be created.
        $table = new xmldb_table('badge_external');
        // Adding fields to table 'badge_external'.
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null);
        $table->add_field('backpackid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null, 'id');
        $table->add_field('collectionid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null, 'backpackid');
        // Adding keys to table 'badge_external'.
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->add_key('fk_backpackid', XMLDB_KEY_FOREIGN, array('backpackid'), 'badge_backpack', array('id'));
        // Conditionally launch create table for 'badge_external'.
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        // Perform user data migration.
        $usercollections = $DB->get_records('badge_backpack');
        foreach ($usercollections as $usercollection) {
            $collection = new stdClass();
            $collection->backpackid = $usercollection->id;
            $collection->collectionid = $usercollection->backpackgid;
            $DB->insert_record('badge_external', $collection);
        }
        // Finally, drop the column.
        // Define field backpackgid to be dropped from 'badge_backpack'.
        $table = new xmldb_table('badge_backpack');
        $field = new xmldb_field('backpackgid');
        // Conditionally launch drop field backpackgid.
        if ($dbman->field_exists($table, $field)) {
            $dbman->drop_field($table, $field);
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2013041601.0);
    }
    if ($oldversion < 2013041601.01) {
        // Changing the default of field descriptionformat on table user to 1.
        $table = new xmldb_table('user');
        $field = new xmldb_field('descriptionformat', XMLDB_TYPE_INTEGER, '2', null, XMLDB_NOTNULL, null, '1', 'description');
        // Launch change of default for field descriptionformat.
        $dbman->change_field_default($table, $field);
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2013041601.01);
    }
    if ($oldversion < 2013041900.0) {
        require_once $CFG->dirroot . '/cache/locallib.php';
        // The features bin needs updating.
        cache_config_writer::update_default_config_stores();
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2013041900.0);
    }
    if ($oldversion < 2013042300.0) {
        // Adding index to unreadmessageid field of message_working table (MDL-34933)
        $table = new xmldb_table('message_working');
        $index = new xmldb_index('unreadmessageid_idx', XMLDB_INDEX_NOTUNIQUE, array('unreadmessageid'));
        // Conditionally launch add index unreadmessageid
        if (!$dbman->index_exists($table, $index)) {
            $dbman->add_index($table, $index);
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2013042300.0);
    }
    // Moodle v2.5.0 release upgrade line.
    // Put any upgrade step following this.
    if ($oldversion < 2013051400.01) {
        // Fix incorrect cc-nc url. Unfortunately the license 'plugins' do
        // not give a mechanism to do this.
        $sql = "UPDATE {license}\n                   SET source = :url, version = :newversion\n                 WHERE shortname = :shortname AND version = :oldversion";
        $params = array('url' => 'http://creativecommons.org/licenses/by-nc/3.0/', 'shortname' => 'cc-nc', 'newversion' => '2013051500', 'oldversion' => '2010033100');
        $DB->execute($sql, $params);
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2013051400.01);
    }
    if ($oldversion < 2013061400.01) {
        // Clean up old tokens which haven't been deleted.
        $DB->execute("DELETE FROM {user_private_key} WHERE NOT EXISTS\n                         (SELECT 'x' FROM {user} WHERE deleted = 0 AND id = userid)");
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2013061400.01);
    }
    if ($oldversion < 2013061700.0) {
        // MDL-40103: Remove unused template tables from the database.
        // These are now created inline with xmldb_table.
        $tablestocleanup = array('temp_enroled_template', 'temp_log_template', 'backup_files_template', 'backup_ids_template');
        $dbman = $DB->get_manager();
        foreach ($tablestocleanup as $table) {
            $xmltable = new xmldb_table($table);
            if ($dbman->table_exists($xmltable)) {
                $dbman->drop_table($xmltable);
            }
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2013061700.0);
    }
    if ($oldversion < 2013070800.0) {
        // Remove orphan repository instances.
        if ($DB->get_dbfamily() === 'mysql') {
            $sql = "DELETE {repository_instances} FROM {repository_instances}\n                    LEFT JOIN {context} ON {context}.id = {repository_instances}.contextid\n                    WHERE {context}.id IS NULL";
        } else {
            $sql = "DELETE FROM {repository_instances}\n                    WHERE NOT EXISTS (\n                        SELECT 'x' FROM {context}\n                        WHERE {context}.id = {repository_instances}.contextid)";
        }
        $DB->execute($sql);
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2013070800.0);
    }
    if ($oldversion < 2013070800.01) {
        // Define field lastnamephonetic to be added to user.
        $table = new xmldb_table('user');
        $field = new xmldb_field('lastnamephonetic', XMLDB_TYPE_CHAR, '255', null, null, null, null, 'imagealt');
        $index = new xmldb_index('lastnamephonetic', XMLDB_INDEX_NOTUNIQUE, array('lastnamephonetic'));
        // Conditionally launch add field lastnamephonetic.
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
            $dbman->add_index($table, $index);
        }
        // Define field firstnamephonetic to be added to user.
        $table = new xmldb_table('user');
        $field = new xmldb_field('firstnamephonetic', XMLDB_TYPE_CHAR, '255', null, null, null, null, 'lastnamephonetic');
        $index = new xmldb_index('firstnamephonetic', XMLDB_INDEX_NOTUNIQUE, array('firstnamephonetic'));
        // Conditionally launch add field firstnamephonetic.
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
            $dbman->add_index($table, $index);
        }
        // Define field alternatename to be added to user.
        $table = new xmldb_table('user');
        $field = new xmldb_field('middlename', XMLDB_TYPE_CHAR, '255', null, null, null, null, 'firstnamephonetic');
        $index = new xmldb_index('middlename', XMLDB_INDEX_NOTUNIQUE, array('middlename'));
        // Conditionally launch add field firstnamephonetic.
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
            $dbman->add_index($table, $index);
        }
        // Define field alternatename to be added to user.
        $table = new xmldb_table('user');
        $field = new xmldb_field('alternatename', XMLDB_TYPE_CHAR, '255', null, null, null, null, 'middlename');
        $index = new xmldb_index('alternatename', XMLDB_INDEX_NOTUNIQUE, array('alternatename'));
        // Conditionally launch add field alternatename.
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
            $dbman->add_index($table, $index);
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2013070800.01);
    }
    if ($oldversion < 2013071500.01) {
        // The enrol_authorize plugin has been removed, if there are no records
        // and no plugin files then remove the plugin data.
        $enrolauthorize = new xmldb_table('enrol_authorize');
        $enrolauthorizerefunds = new xmldb_table('enrol_authorize_refunds');
        if (!file_exists($CFG->dirroot . '/enrol/authorize/version.php') && $dbman->table_exists($enrolauthorize) && $dbman->table_exists($enrolauthorizerefunds)) {
            $enrolauthorizecount = $DB->count_records('enrol_authorize');
            $enrolauthorizerefundcount = $DB->count_records('enrol_authorize_refunds');
            if (empty($enrolauthorizecount) && empty($enrolauthorizerefundcount)) {
                // Drop the database tables.
                $dbman->drop_table($enrolauthorize);
                $dbman->drop_table($enrolauthorizerefunds);
                // Drop the message provider and associated data manually.
                $DB->delete_records('message_providers', array('component' => 'enrol_authorize'));
                $DB->delete_records_select('config_plugins', "plugin = 'message' AND " . $DB->sql_like('name', '?', false), array("%_provider_enrol_authorize_%"));
                $DB->delete_records_select('user_preferences', $DB->sql_like('name', '?', false), array("message_provider_enrol_authorize_%"));
                // Remove capabilities.
                capabilities_cleanup('enrol_authorize');
                // Remove all other associated config.
                unset_all_config_for_plugin('enrol_authorize');
            }
        }
        upgrade_main_savepoint(true, 2013071500.01);
    }
    if ($oldversion < 2013071500.02) {
        // Define field attachment to be dropped from badge.
        $table = new xmldb_table('badge');
        $field = new xmldb_field('image');
        // Conditionally launch drop field eventtype.
        if ($dbman->field_exists($table, $field)) {
            $dbman->drop_field($table, $field);
        }
        upgrade_main_savepoint(true, 2013071500.02);
    }
    if ($oldversion < 2013072600.01) {
        upgrade_mssql_nvarcharmax();
        upgrade_mssql_varbinarymax();
        upgrade_main_savepoint(true, 2013072600.01);
    }
    if ($oldversion < 2013081200.0) {
        // Define field uploadfiles to be added to external_services.
        $table = new xmldb_table('external_services');
        $field = new xmldb_field('uploadfiles', XMLDB_TYPE_INTEGER, '1', null, XMLDB_NOTNULL, null, '0', 'downloadfiles');
        // Conditionally launch add field uploadfiles.
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2013081200.0);
    }
    if ($oldversion < 2013082300.01) {
        // Define the table 'backup_logs' and the field 'message' which we will be changing from a char to a text field.
        $table = new xmldb_table('backup_logs');
        $field = new xmldb_field('message', XMLDB_TYPE_TEXT, null, null, XMLDB_NOTNULL, null, null, 'loglevel');
        // Perform the change.
        $dbman->change_field_type($table, $field);
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2013082300.01);
    }
    // Convert SCORM course format courses to singleactivity.
    if ($oldversion < 2013082700.0) {
        // First set relevant singleactivity settings.
        $formatoptions = new stdClass();
        $formatoptions->format = 'singleactivity';
        $formatoptions->sectionid = 0;
        $formatoptions->name = 'activitytype';
        $formatoptions->value = 'scorm';
        $courses = $DB->get_recordset('course', array('format' => 'scorm'), 'id');
        foreach ($courses as $course) {
            $formatoptions->courseid = $course->id;
            $DB->insert_record('course_format_options', $formatoptions);
        }
        $courses->close();
        // Now update course format for these courses.
        $sql = "UPDATE {course}\n                   SET format = 'singleactivity', modinfo = '', sectioncache = ''\n                 WHERE format = 'scorm'";
        $DB->execute($sql);
        upgrade_main_savepoint(true, 2013082700.0);
    }
    if ($oldversion < 2013090500.01) {
        // Define field calendartype to be added to course.
        $table = new xmldb_table('course');
        $field = new xmldb_field('calendartype', XMLDB_TYPE_CHAR, '30', null, XMLDB_NOTNULL, null, null);
        // Conditionally launch add field calendartype.
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        // Since structure of 'course' table has changed we need to re-read $SITE from DB.
        $SITE = $DB->get_record('course', array('id' => $SITE->id));
        $COURSE = clone $SITE;
        // Define field calendartype to be added to user.
        $table = new xmldb_table('user');
        $field = new xmldb_field('calendartype', XMLDB_TYPE_CHAR, '30', null, XMLDB_NOTNULL, null, 'gregorian');
        // Conditionally launch add field calendartype.
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2013090500.01);
    }
    if ($oldversion < 2013091000.02) {
        // Define field cacherev to be added to course.
        $table = new xmldb_table('course');
        $field = new xmldb_field('cacherev', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0', 'completionnotify');
        // Conditionally launch add field cacherev.
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        // Since structure of 'course' table has changed we need to re-read $SITE from DB.
        $SITE = $DB->get_record('course', array('id' => $SITE->id));
        $COURSE = clone $SITE;
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2013091000.02);
    }
    if ($oldversion < 2013091000.03) {
        // Define field modinfo to be dropped from course.
        $table = new xmldb_table('course');
        $field = new xmldb_field('modinfo');
        // Conditionally launch drop field modinfo.
        if ($dbman->field_exists($table, $field)) {
            $dbman->drop_field($table, $field);
        }
        // Define field sectioncache to be dropped from course.
        $field = new xmldb_field('sectioncache');
        // Conditionally launch drop field sectioncache.
        if ($dbman->field_exists($table, $field)) {
            $dbman->drop_field($table, $field);
        }
        // Since structure of 'course' table has changed we need to re-read $SITE from DB.
        $SITE = $DB->get_record('course', array('id' => $SITE->id));
        $COURSE = clone $SITE;
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2013091000.03);
    }
    if ($oldversion < 2013091300.01) {
        $table = new xmldb_table('user');
        // Changing precision of field institution on table user to (255).
        $field = new xmldb_field('institution', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, 'phone2');
        // Launch change of precision for field institution.
        $dbman->change_field_precision($table, $field);
        // Changing precision of field department on table user to (255).
        $field = new xmldb_field('department', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, 'institution');
        // Launch change of precision for field department.
        $dbman->change_field_precision($table, $field);
        // Changing precision of field address on table user to (255).
        $field = new xmldb_field('address', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, 'department');
        // Launch change of precision for field address.
        $dbman->change_field_precision($table, $field);
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2013091300.01);
    }
    if ($oldversion < 2013092000.01) {
        // Define table question_statistics to be created.
        $table = new xmldb_table('question_statistics');
        // Adding fields to table question_statistics.
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('hashcode', XMLDB_TYPE_CHAR, '40', null, XMLDB_NOTNULL, null, null);
        $table->add_field('timemodified', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null);
        $table->add_field('questionid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null);
        $table->add_field('slot', XMLDB_TYPE_INTEGER, '10', null, null, null, null);
        $table->add_field('subquestion', XMLDB_TYPE_INTEGER, '4', null, XMLDB_NOTNULL, null, null);
        $table->add_field('s', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0');
        $table->add_field('effectiveweight', XMLDB_TYPE_NUMBER, '15, 5', null, null, null, null);
        $table->add_field('negcovar', XMLDB_TYPE_INTEGER, '2', null, XMLDB_NOTNULL, null, '0');
        $table->add_field('discriminationindex', XMLDB_TYPE_NUMBER, '15, 5', null, null, null, null);
        $table->add_field('discriminativeefficiency', XMLDB_TYPE_NUMBER, '15, 5', null, null, null, null);
        $table->add_field('sd', XMLDB_TYPE_NUMBER, '15, 10', null, null, null, null);
        $table->add_field('facility', XMLDB_TYPE_NUMBER, '15, 10', null, null, null, null);
        $table->add_field('subquestions', XMLDB_TYPE_TEXT, null, null, null, null, null);
        $table->add_field('maxmark', XMLDB_TYPE_NUMBER, '12, 7', null, null, null, null);
        $table->add_field('positions', XMLDB_TYPE_TEXT, null, null, null, null, null);
        $table->add_field('randomguessscore', XMLDB_TYPE_NUMBER, '12, 7', null, null, null, null);
        // Adding keys to table question_statistics.
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        // Conditionally launch create table for question_statistics.
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        // Define table question_response_analysis to be created.
        $table = new xmldb_table('question_response_analysis');
        // Adding fields to table question_response_analysis.
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('hashcode', XMLDB_TYPE_CHAR, '40', null, XMLDB_NOTNULL, null, null);
        $table->add_field('timemodified', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null);
        $table->add_field('questionid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null);
        $table->add_field('subqid', XMLDB_TYPE_CHAR, '100', null, XMLDB_NOTNULL, null, null);
        $table->add_field('aid', XMLDB_TYPE_CHAR, '100', null, null, null, null);
        $table->add_field('response', XMLDB_TYPE_TEXT, null, null, null, null, null);
        $table->add_field('rcount', XMLDB_TYPE_INTEGER, '10', null, null, null, null);
        $table->add_field('credit', XMLDB_TYPE_NUMBER, '15, 5', null, XMLDB_NOTNULL, null, null);
        // Adding keys to table question_response_analysis.
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        // Conditionally launch create table for question_response_analysis.
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2013092000.01);
    }
    if ($oldversion < 2013092001.01) {
        // Force uninstall of deleted tool.
        if (!file_exists("{$CFG->dirroot}/{$CFG->admin}/tool/bloglevelupgrade")) {
            // Remove capabilities.
            capabilities_cleanup('tool_bloglevelupgrade');
            // Remove all other associated config.
            unset_all_config_for_plugin('tool_bloglevelupgrade');
        }
        upgrade_main_savepoint(true, 2013092001.01);
    }
    if ($oldversion < 2013092001.02) {
        // Define field version to be dropped from modules.
        $table = new xmldb_table('modules');
        $field = new xmldb_field('version');
        // Conditionally launch drop field version.
        if ($dbman->field_exists($table, $field)) {
            // Migrate all plugin version info to config_plugins table.
            $modules = $DB->get_records('modules');
            foreach ($modules as $module) {
                set_config('version', $module->version, 'mod_' . $module->name);
            }
            unset($modules);
            $dbman->drop_field($table, $field);
        }
        // Define field version to be dropped from block.
        $table = new xmldb_table('block');
        $field = new xmldb_field('version');
        // Conditionally launch drop field version.
        if ($dbman->field_exists($table, $field)) {
            $blocks = $DB->get_records('block');
            foreach ($blocks as $block) {
                set_config('version', $block->version, 'block_' . $block->name);
            }
            unset($blocks);
            $dbman->drop_field($table, $field);
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2013092001.02);
    }
    if ($oldversion < 2013092700.01) {
        $table = new xmldb_table('files');
        // Define field referencelastsync to be dropped from files.
        $field = new xmldb_field('referencelastsync');
        // Conditionally launch drop field referencelastsync.
        if ($dbman->field_exists($table, $field)) {
            $dbman->drop_field($table, $field);
        }
        // Define field referencelifetime to be dropped from files.
        $field = new xmldb_field('referencelifetime');
        // Conditionally launch drop field referencelifetime.
        if ($dbman->field_exists($table, $field)) {
            $dbman->drop_field($table, $field);
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2013092700.01);
    }
    if ($oldversion < 2013100400.01) {
        // Add user_devices core table.
        // Define field id to be added to user_devices.
        $table = new xmldb_table('user_devices');
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null);
        $table->add_field('userid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0', 'id');
        $table->add_field('appid', XMLDB_TYPE_CHAR, '128', null, XMLDB_NOTNULL, null, null, 'userid');
        $table->add_field('name', XMLDB_TYPE_CHAR, '32', null, XMLDB_NOTNULL, null, null, 'appid');
        $table->add_field('model', XMLDB_TYPE_CHAR, '32', null, XMLDB_NOTNULL, null, null, 'name');
        $table->add_field('platform', XMLDB_TYPE_CHAR, '32', null, XMLDB_NOTNULL, null, null, 'model');
        $table->add_field('version', XMLDB_TYPE_CHAR, '32', null, XMLDB_NOTNULL, null, null, 'platform');
        $table->add_field('pushid', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, 'version');
        $table->add_field('uuid', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, 'pushid');
        $table->add_field('timecreated', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null, 'uuid');
        $table->add_field('timemodified', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null, 'timecreated');
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->add_key('pushid-userid', XMLDB_KEY_UNIQUE, array('pushid', 'userid'));
        $table->add_key('pushid-platform', XMLDB_KEY_UNIQUE, array('pushid', 'platform'));
        $table->add_key('userid', XMLDB_KEY_FOREIGN, array('userid'), 'user', array('id'));
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2013100400.01);
    }
    if ($oldversion < 2013100800.0) {
        // Define field maxfraction to be added to question_attempts.
        $table = new xmldb_table('question_attempts');
        $field = new xmldb_field('maxfraction', XMLDB_TYPE_NUMBER, '12, 7', null, XMLDB_NOTNULL, null, '1', 'minfraction');
        // Conditionally launch add field maxfraction.
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2013100800.0);
    }
    if ($oldversion < 2013100800.01) {
        // Create a new 'user_password_resets' table.
        $table = new xmldb_table('user_password_resets');
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null);
        $table->add_field('userid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null, null);
        $table->add_field('timerequested', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null, null);
        $table->add_field('timererequested', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, 0, null);
        $table->add_field('token', XMLDB_TYPE_CHAR, '32', null, XMLDB_NOTNULL, null, null, null);
        // Adding keys to table.
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->add_key('fk_userid', XMLDB_KEY_FOREIGN, array('userid'), 'user', array('id'));
        // Conditionally launch create table.
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        upgrade_main_savepoint(true, 2013100800.01);
    }
    if ($oldversion < 2013100800.02) {
        $sql = "INSERT INTO {user_preferences}(userid, name, value)\n                SELECT id, 'htmleditor', 'textarea' FROM {user} u where u.htmleditor = 0";
        $DB->execute($sql);
        // Define field htmleditor to be dropped from user
        $table = new xmldb_table('user');
        $field = new xmldb_field('htmleditor');
        // Conditionally launch drop field requested
        if ($dbman->field_exists($table, $field)) {
            $dbman->drop_field($table, $field);
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2013100800.02);
    }
    if ($oldversion < 2013100900.0) {
        // Define field lifetime to be dropped from files_reference.
        $table = new xmldb_table('files_reference');
        $field = new xmldb_field('lifetime');
        // Conditionally launch drop field lifetime.
        if ($dbman->field_exists($table, $field)) {
            $dbman->drop_field($table, $field);
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2013100900.0);
    }
    if ($oldversion < 2013100901.0) {
        // Fixing possible wrong MIME type for Java Network Launch Protocol (JNLP) files.
        $select = $DB->sql_like('filename', '?', false);
        $DB->set_field_select('files', 'mimetype', 'application/x-java-jnlp-file', $select, array('%.jnlp'));
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2013100901.0);
    }
    if ($oldversion < 2013102100.0) {
        // Changing default value for the status of a course backup.
        $table = new xmldb_table('backup_courses');
        $field = new xmldb_field('laststatus', XMLDB_TYPE_CHAR, '1', null, XMLDB_NOTNULL, null, '5', 'lastendtime');
        // Launch change of precision for field value
        $dbman->change_field_precision($table, $field);
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2013102100.0);
    }
    if ($oldversion < 2013102201.0) {
        $params = array('plugin' => 'editor_atto', 'name' => 'version');
        $attoversion = $DB->get_record('config_plugins', $params, 'value', IGNORE_MISSING);
        if ($attoversion) {
            $attoversion = floatval($attoversion->value);
        }
        // Only these versions that were part of 2.6 beta should be removed.
        // Manually installed versions of 2.5 - or later releases for 2.6 installed
        // via the plugins DB should not be uninstalled.
        if ($attoversion && $attoversion > 2013051500.0 && $attoversion < 2013102201.0) {
            // Remove all other associated config.
            unset_all_config_for_plugin('editor_atto');
            unset_all_config_for_plugin('atto_bold');
            unset_all_config_for_plugin('atto_clear');
            unset_all_config_for_plugin('atto_html');
            unset_all_config_for_plugin('atto_image');
            unset_all_config_for_plugin('atto_indent');
            unset_all_config_for_plugin('atto_italic');
            unset_all_config_for_plugin('atto_link');
            unset_all_config_for_plugin('atto_media');
            unset_all_config_for_plugin('atto_orderedlist');
            unset_all_config_for_plugin('atto_outdent');
            unset_all_config_for_plugin('atto_strike');
            unset_all_config_for_plugin('atto_title');
            unset_all_config_for_plugin('atto_underline');
            unset_all_config_for_plugin('atto_unlink');
            unset_all_config_for_plugin('atto_unorderedlist');
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2013102201.0);
    }
    if ($oldversion < 2013102500.01) {
        // Find all fileareas that have missing root folder entry and add the root folder entry.
        if (empty($CFG->filesrootrecordsfixed)) {
            upgrade_fix_missing_root_folders();
            // To skip running the same script on the upgrade to the next major release.
            set_config('filesrootrecordsfixed', 1);
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2013102500.01);
    }
    if ($oldversion < 2013110500.01) {
        // MDL-38228. Corrected course_modules upgrade script instead of 2013021801.01.
        // This upgrade script fixes the mismatches between DB fields course_modules.section
        // and course_sections.sequence. It makes sure that each module is included
        // in the sequence of at least one section.
        // There is also a separate script for admins: admin/cli/fix_course_sortorder.php
        // This script in included in each major version upgrade process so make sure we don't run it twice.
        if (empty($CFG->movingmoduleupgradescriptwasrun)) {
            upgrade_course_modules_sequences();
            // To skip running the same script on the upgrade to the next major release.
            set_config('movingmoduleupgradescriptwasrun', 1);
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2013110500.01);
    }
    if ($oldversion < 2013110600.01) {
        if (!file_exists($CFG->dirroot . '/theme/mymobile')) {
            // Replace the mymobile settings.
            $DB->set_field('course', 'theme', 'clean', array('theme' => 'mymobile'));
            $DB->set_field('course_categories', 'theme', 'clean', array('theme' => 'mymobile'));
            $DB->set_field('user', 'theme', 'clean', array('theme' => 'mymobile'));
            $DB->set_field('mnet_host', 'theme', 'clean', array('theme' => 'mymobile'));
            // Replace the theme configs.
            if (get_config('core', 'theme') === 'mymobile') {
                set_config('theme', 'clean');
            }
            if (get_config('core', 'thememobile') === 'mymobile') {
                set_config('thememobile', 'clean');
            }
            if (get_config('core', 'themelegacy') === 'mymobile') {
                set_config('themelegacy', 'clean');
            }
            if (get_config('core', 'themetablet') === 'mymobile') {
                set_config('themetablet', 'clean');
            }
            // Hacky emulation of plugin uninstallation.
            unset_all_config_for_plugin('theme_mymobile');
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2013110600.01);
    }
    if ($oldversion < 2013110600.02) {
        // If the user is logged in, we ensure that the alternate name fields are present
        // in the session. It will not be the case when upgrading from 2.5 downwards.
        if (!empty($USER->id)) {
            $refreshuser = $DB->get_record('user', array('id' => $USER->id));
            $fields = array('firstnamephonetic', 'lastnamephonetic', 'middlename', 'alternatename', 'firstname', 'lastname');
            foreach ($fields as $field) {
                $USER->{$field} = $refreshuser->{$field};
            }
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2013110600.02);
    }
    // Moodle v2.6.0 release upgrade line.
    // Put any upgrade step following this.
    if ($oldversion < 2013111800.01) {
        // Delete notes of deleted courses.
        $sql = "DELETE FROM {post}\n                 WHERE NOT EXISTS (SELECT {course}.id FROM {course}\n                                    WHERE {course}.id = {post}.courseid)\n                       AND {post}.module = ?";
        $DB->execute($sql, array('notes'));
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2013111800.01);
    }
    if ($oldversion < 2013122400.01) {
        // Purge stored passwords from config_log table, ideally this should be in each plugin
        // but that would complicate backporting...
        $items = array('core/cronremotepassword', 'core/proxypassword', 'core/smtppass', 'core/jabberpassword', 'enrol_database/dbpass', 'enrol_ldap/bind_pw', 'url/secretphrase');
        foreach ($items as $item) {
            list($plugin, $name) = explode('/', $item);
            $sqlcomparevalue = $DB->sql_compare_text('value');
            $sqlcompareoldvalue = $DB->sql_compare_text('oldvalue');
            if ($plugin === 'core') {
                $sql = "UPDATE {config_log}\n                           SET value = :value\n                         WHERE name = :name AND plugin IS NULL AND {$sqlcomparevalue} <> :empty";
                $params = array('value' => '********', 'name' => $name, 'empty' => '');
                $DB->execute($sql, $params);
                $sql = "UPDATE {config_log}\n                           SET oldvalue = :value\n                         WHERE name = :name AND plugin IS NULL AND {$sqlcompareoldvalue} <> :empty";
                $params = array('value' => '********', 'name' => $name, 'empty' => '');
                $DB->execute($sql, $params);
            } else {
                $sql = "UPDATE {config_log}\n                           SET value = :value\n                         WHERE name = :name AND plugin = :plugin AND {$sqlcomparevalue} <> :empty";
                $params = array('value' => '********', 'name' => $name, 'plugin' => $plugin, 'empty' => '');
                $DB->execute($sql, $params);
                $sql = "UPDATE {config_log}\n                           SET oldvalue = :value\n                         WHERE name = :name AND plugin = :plugin AND  {$sqlcompareoldvalue} <> :empty";
                $params = array('value' => '********', 'name' => $name, 'plugin' => $plugin, 'empty' => '');
                $DB->execute($sql, $params);
            }
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2013122400.01);
    }
    if ($oldversion < 2014011000.01) {
        // Define table cache_text to be dropped.
        $table = new xmldb_table('cache_text');
        // Conditionally launch drop table for cache_text.
        if ($dbman->table_exists($table)) {
            $dbman->drop_table($table);
        }
        unset_config('cachetext');
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2014011000.01);
    }
    if ($oldversion < 2014011701.0) {
        // Fix gradebook sortorder duplicates.
        upgrade_grade_item_fix_sortorder();
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2014011701.0);
    }
    if ($oldversion < 2014012300.01) {
        // Remove deleted users home pages.
        $sql = "DELETE FROM {my_pages}\n                WHERE EXISTS (SELECT {user}.id\n                                  FROM {user}\n                                  WHERE {user}.id = {my_pages}.userid\n                                  AND {user}.deleted = 1)\n                AND {my_pages}.private = 1";
        $DB->execute($sql);
        // Reached main savepoint.
        upgrade_main_savepoint(true, 2014012300.01);
    }
    if ($oldversion < 2014012400.0) {
        // Define table lock_db to be created.
        $table = new xmldb_table('lock_db');
        // Adding fields to table lock_db.
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('resourcekey', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null);
        $table->add_field('expires', XMLDB_TYPE_INTEGER, '10', null, null, null, null);
        $table->add_field('owner', XMLDB_TYPE_CHAR, '36', null, null, null, null);
        // Adding keys to table lock_db.
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        // Adding indexes to table lock_db.
        $table->add_index('resourcekey_uniq', XMLDB_INDEX_UNIQUE, array('resourcekey'));
        $table->add_index('expires_idx', XMLDB_INDEX_NOTUNIQUE, array('expires'));
        $table->add_index('owner_idx', XMLDB_INDEX_NOTUNIQUE, array('owner'));
        // Conditionally launch create table for lock_db.
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2014012400.0);
    }
    if ($oldversion < 2014021300.01) {
        // Delete any cached stats to force recalculation later, then we can be sure that cached records will have the correct
        // field.
        $DB->delete_records('question_response_analysis');
        $DB->delete_records('question_statistics');
        $DB->delete_records('quiz_statistics');
        // Define field variant to be added to question_statistics.
        $table = new xmldb_table('question_statistics');
        $field = new xmldb_field('variant', XMLDB_TYPE_INTEGER, '10', null, null, null, null, 'subquestion');
        // Conditionally launch add field variant.
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2014021300.01);
    }
    if ($oldversion < 2014021300.02) {
        // Define field variant to be added to question_response_analysis.
        $table = new xmldb_table('question_response_analysis');
        $field = new xmldb_field('variant', XMLDB_TYPE_INTEGER, '10', null, null, null, null, 'questionid');
        // Conditionally launch add field variant.
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2014021300.02);
    }
    if ($oldversion < 2014021800.0) {
        // Define field queued to be added to portfolio_tempdata.
        $table = new xmldb_table('portfolio_tempdata');
        $field = new xmldb_field('queued', XMLDB_TYPE_INTEGER, '1', null, XMLDB_NOTNULL, null, '0', 'instance');
        // Conditionally launch add field queued.
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2014021800.0);
    }
    if ($oldversion < 2014021900.01) {
        // Force uninstall of deleted tool.
        // Normally, in this sort of situation, we would do a file_exists check,
        // in case the plugin had been added back as an add-on. However, this
        // plugin is completely useless after Moodle 2.6, so we check that the
        // files have been removed in upgrade_stale_php_files_present, and we
        // uninstall it unconditionally here.
        // Remove all associated config.
        unset_all_config_for_plugin('tool_qeupgradehelper');
        upgrade_main_savepoint(true, 2014021900.01);
    }
    if ($oldversion < 2014021900.02) {
        // Define table question_states to be dropped.
        $table = new xmldb_table('question_states');
        // Conditionally launch drop table for question_states.
        if ($dbman->table_exists($table)) {
            $dbman->drop_table($table);
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2014021900.02);
    }
    if ($oldversion < 2014021900.03) {
        // Define table question_sessions to be dropped.
        $table = new xmldb_table('question_sessions');
        // Conditionally launch drop table for question_sessions.
        if ($dbman->table_exists($table)) {
            $dbman->drop_table($table);
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2014021900.03);
    }
    if ($oldversion < 2014022600.0) {
        $table = new xmldb_table('task_scheduled');
        // Adding fields to table task_scheduled.
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('component', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null);
        $table->add_field('classname', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null);
        $table->add_field('lastruntime', XMLDB_TYPE_INTEGER, '10', null, null, null, null);
        $table->add_field('nextruntime', XMLDB_TYPE_INTEGER, '10', null, null, null, null);
        $table->add_field('blocking', XMLDB_TYPE_INTEGER, '2', null, XMLDB_NOTNULL, null, '0');
        $table->add_field('minute', XMLDB_TYPE_CHAR, '25', null, XMLDB_NOTNULL, null, null);
        $table->add_field('hour', XMLDB_TYPE_CHAR, '25', null, XMLDB_NOTNULL, null, null);
        $table->add_field('day', XMLDB_TYPE_CHAR, '25', null, XMLDB_NOTNULL, null, null);
        $table->add_field('month', XMLDB_TYPE_CHAR, '25', null, XMLDB_NOTNULL, null, null);
        $table->add_field('dayofweek', XMLDB_TYPE_CHAR, '25', null, XMLDB_NOTNULL, null, null);
        $table->add_field('faildelay', XMLDB_TYPE_INTEGER, '10', null, null, null, null);
        $table->add_field('customised', XMLDB_TYPE_INTEGER, '2', null, XMLDB_NOTNULL, null, '0');
        $table->add_field('disabled', XMLDB_TYPE_INTEGER, '1', null, XMLDB_NOTNULL, null, '0');
        // Adding keys to table task_scheduled.
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        // Adding indexes to table task_scheduled.
        $table->add_index('classname_uniq', XMLDB_INDEX_UNIQUE, array('classname'));
        // Conditionally launch create table for task_scheduled.
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        // Define table task_adhoc to be created.
        $table = new xmldb_table('task_adhoc');
        // Adding fields to table task_adhoc.
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('component', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null);
        $table->add_field('classname', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null);
        $table->add_field('nextruntime', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null);
        $table->add_field('faildelay', XMLDB_TYPE_INTEGER, '10', null, null, null, null);
        $table->add_field('customdata', XMLDB_TYPE_TEXT, null, null, null, null, null);
        $table->add_field('blocking', XMLDB_TYPE_INTEGER, '2', null, XMLDB_NOTNULL, null, '0');
        // Adding keys to table task_adhoc.
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        // Adding indexes to table task_adhoc.
        $table->add_index('nextruntime_idx', XMLDB_INDEX_NOTUNIQUE, array('nextruntime'));
        // Conditionally launch create table for task_adhoc.
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2014022600.0);
    }
    if ($oldversion < 2014031400.02) {
        // Delete any cached stats to force recalculation later, then we can be sure that cached records will have the correct
        // field.
        $DB->delete_records('question_response_analysis');
        $DB->delete_records('question_statistics');
        $DB->delete_records('quiz_statistics');
        // Define field response to be dropped from question_response_analysis.
        $table = new xmldb_table('question_response_analysis');
        $field = new xmldb_field('rcount');
        // Conditionally launch drop field response.
        if ($dbman->field_exists($table, $field)) {
            $dbman->drop_field($table, $field);
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2014031400.02);
    }
    if ($oldversion < 2014031400.03) {
        // Define table question_response_count to be created.
        $table = new xmldb_table('question_response_count');
        // Adding fields to table question_response_count.
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('analysisid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null);
        $table->add_field('try', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null);
        $table->add_field('rcount', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null);
        // Adding keys to table question_response_count.
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->add_key('analysisid', XMLDB_KEY_FOREIGN, array('analysisid'), 'question_response_analysis', array('id'));
        // Conditionally launch create table for question_response_count.
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2014031400.03);
    }
    if ($oldversion < 2014031400.04) {
        // Define field whichtries to be added to question_response_analysis.
        $table = new xmldb_table('question_response_analysis');
        $field = new xmldb_field('whichtries', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, 'hashcode');
        // Conditionally launch add field whichtries.
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2014031400.04);
    }
    if ($oldversion < 2014032600.0) {
        // Removing the themes from core.
        $themes = array('afterburner', 'anomaly', 'arialist', 'binarius', 'boxxie', 'brick', 'formal_white', 'formfactor', 'fusion', 'leatherbound', 'magazine', 'nimble', 'nonzero', 'overlay', 'serenity', 'sky_high', 'splash', 'standard', 'standardold');
        foreach ($themes as $key => $theme) {
            if (check_dir_exists($CFG->dirroot . '/theme/' . $theme, false)) {
                // Ignore the themes that have been re-downloaded.
                unset($themes[$key]);
            }
        }
        // Check we actually have themes to remove.
        if (count($themes) > 0) {
            // Replace the theme configs.
            if (in_array(get_config('core', 'theme'), $themes)) {
                set_config('theme', 'clean');
            }
            if (in_array(get_config('core', 'thememobile'), $themes)) {
                set_config('thememobile', 'clean');
            }
            if (in_array(get_config('core', 'themelegacy'), $themes)) {
                set_config('themelegacy', 'clean');
            }
            if (in_array(get_config('core', 'themetablet'), $themes)) {
                set_config('themetablet', 'clean');
            }
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2014032600.0);
    }
    if ($oldversion < 2014032600.02) {
        // Add new fields to the 'tag_instance' table.
        $table = new xmldb_table('tag_instance');
        $field = new xmldb_field('component', XMLDB_TYPE_CHAR, '100', null, false, null, null, 'tagid');
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        $field = new xmldb_field('contextid', XMLDB_TYPE_INTEGER, '10', null, false, null, null, 'itemid');
        // Define the 'contextid' foreign key to be added to the tag_instance table.
        $key = new xmldb_key('contextid', XMLDB_KEY_FOREIGN, array('contextid'), 'context', array('id'));
        if ($dbman->field_exists($table, $field)) {
            $dbman->drop_key($table, $key);
            $DB->set_field('tag_instance', 'contextid', null, array('contextid' => 0));
            $dbman->change_field_default($table, $field);
        } else {
            $dbman->add_field($table, $field);
        }
        $dbman->add_key($table, $key);
        $field = new xmldb_field('timecreated', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0', 'ordering');
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        $sql = "UPDATE {tag_instance}\n                   SET timecreated = timemodified";
        $DB->execute($sql);
        // Update all the course tags.
        $sql = "UPDATE {tag_instance}\n                   SET component = 'core',\n                       contextid = (SELECT ctx.id\n                                      FROM {context} ctx\n                                     WHERE ctx.contextlevel = :contextlevel\n                                       AND ctx.instanceid = {tag_instance}.itemid)\n                 WHERE itemtype = 'course' AND contextid IS NULL";
        $DB->execute($sql, array('contextlevel' => CONTEXT_COURSE));
        // Update all the user tags.
        $sql = "UPDATE {tag_instance}\n                   SET component = 'core',\n                       contextid = (SELECT ctx.id\n                                      FROM {context} ctx\n                                     WHERE ctx.contextlevel = :contextlevel\n                                       AND ctx.instanceid = {tag_instance}.itemid)\n                 WHERE itemtype = 'user' AND contextid IS NULL";
        $DB->execute($sql, array('contextlevel' => CONTEXT_USER));
        // Update all the blog post tags.
        $sql = "UPDATE {tag_instance}\n                   SET component = 'core',\n                       contextid = (SELECT ctx.id\n                                      FROM {context} ctx\n                                      JOIN {post} p\n                                        ON p.userid = ctx.instanceid\n                                     WHERE ctx.contextlevel = :contextlevel\n                                       AND p.id = {tag_instance}.itemid)\n                 WHERE itemtype = 'post' AND contextid IS NULL";
        $DB->execute($sql, array('contextlevel' => CONTEXT_USER));
        // Update all the wiki page tags.
        $sql = "UPDATE {tag_instance}\n                   SET component = 'mod_wiki',\n                       contextid = (SELECT ctx.id\n                                      FROM {context} ctx\n                                      JOIN {course_modules} cm\n                                        ON cm.id = ctx.instanceid\n                                      JOIN {modules} m\n                                        ON m.id = cm.module\n                                      JOIN {wiki} w\n                                        ON w.id = cm.instance\n                                      JOIN {wiki_subwikis} sw\n                                        ON sw.wikiid = w.id\n                                      JOIN {wiki_pages} wp\n                                        ON wp.subwikiid = sw.id\n                                     WHERE m.name = 'wiki'\n                                       AND ctx.contextlevel = :contextlevel\n                                       AND wp.id = {tag_instance}.itemid)\n                 WHERE itemtype = 'wiki_pages' AND contextid IS NULL";
        $DB->execute($sql, array('contextlevel' => CONTEXT_MODULE));
        // Update all the question tags.
        $sql = "UPDATE {tag_instance}\n                   SET component = 'core_question',\n                       contextid = (SELECT qc.contextid\n                                      FROM {question} q\n                                      JOIN {question_categories} qc\n                                        ON q.category = qc.id\n                                     WHERE q.id = {tag_instance}.itemid)\n                 WHERE itemtype = 'question' AND contextid IS NULL";
        $DB->execute($sql);
        // Update all the tag tags.
        $sql = "UPDATE {tag_instance}\n                   SET component = 'core',\n                       contextid = :systemcontext\n                 WHERE itemtype = 'tag' AND contextid IS NULL";
        $DB->execute($sql, array('systemcontext' => context_system::instance()->id));
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2014032600.02);
    }
    if ($oldversion < 2014032700.01) {
        // Define field disabled to be added to task_scheduled.
        $table = new xmldb_table('task_scheduled');
        $field = new xmldb_field('disabled', XMLDB_TYPE_INTEGER, '1', null, XMLDB_NOTNULL, null, '0', 'customised');
        // Conditionally launch add field disabled.
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2014032700.01);
    }
    if ($oldversion < 2014032700.02) {
        // Update displayloginfailures setting.
        if (empty($CFG->displayloginfailures)) {
            set_config('displayloginfailures', 0);
        } else {
            set_config('displayloginfailures', 1);
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2014032700.02);
    }
    if ($oldversion < 2014040800.0) {
        // Define field availability to be added to course_modules.
        $table = new xmldb_table('course_modules');
        $field = new xmldb_field('availability', XMLDB_TYPE_TEXT, null, null, null, null, null, 'showdescription');
        // Conditionally launch add field availability.
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        // Define field availability to be added to course_sections.
        $table = new xmldb_table('course_sections');
        $field = new xmldb_field('availability', XMLDB_TYPE_TEXT, null, null, null, null, null, 'groupingid');
        // Conditionally launch add field availability.
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        // Update existing conditions to new format. This could be a slow
        // process, so begin by counting the number of affected modules/sections.
        // (Performance: On the OU system, these took ~0.3 seconds, with about
        // 20,000 results out of about 400,000 total rows in those tables.)
        $cmcount = $DB->count_records_sql("\n                SELECT COUNT(1)\n                  FROM {course_modules} cm\n                 WHERE cm.availablefrom != 0 OR\n                       cm.availableuntil != 0 OR\n                       EXISTS (SELECT 1 FROM {course_modules_availability} WHERE coursemoduleid = cm.id) OR\n                       EXISTS (SELECT 1 FROM {course_modules_avail_fields} WHERE coursemoduleid = cm.id)");
        $sectcount = $DB->count_records_sql("\n                SELECT COUNT(1)\n                  FROM {course_sections} cs\n                 WHERE cs.groupingid != 0 OR\n                       cs.availablefrom != 0 OR\n                       cs.availableuntil != 0 OR\n                       EXISTS (SELECT 1 FROM {course_sections_availability} WHERE coursesectionid = cs.id) OR\n                       EXISTS (SELECT 1 FROM {course_sections_avail_fields} WHERE coursesectionid = cs.id)");
        if ($cmcount + $sectcount > 0) {
            // Show progress bar and start db transaction.
            $transaction = $DB->start_delegated_transaction();
            $pbar = new progress_bar('availupdate', 500, true);
            // Loop through all course-modules.
            // (Performance: On the OU system, the query took <1 second for ~20k
            // results; updating all those entries took ~3 minutes.)
            $done = 0;
            $lastupdate = 0;
            $rs = $DB->get_recordset_sql("\n                    SELECT cm.id, cm.availablefrom, cm.availableuntil, cm.showavailability,\n                           COUNT(DISTINCT cma.id) AS availcount,\n                           COUNT(DISTINCT cmf.id) AS fieldcount\n                      FROM {course_modules} cm\n                           LEFT JOIN {course_modules_availability} cma ON cma.coursemoduleid = cm.id\n                           LEFT JOIN {course_modules_avail_fields} cmf ON cmf.coursemoduleid = cm.id\n                     WHERE cm.availablefrom != 0 OR\n                           cm.availableuntil != 0 OR\n                           cma.id IS NOT NULL OR\n                           cmf.id IS NOT NULL\n                  GROUP BY cm.id, cm.availablefrom, cm.availableuntil, cm.showavailability");
            foreach ($rs as $rec) {
                // Update progress initially and then once per second.
                if (time() != $lastupdate) {
                    $lastupdate = time();
                    $pbar->update($done, $cmcount + $sectcount, "Updating activity availability settings ({$done}/{$cmcount})");
                }
                // Get supporting records - only if there are any (to reduce the
                // number of queries where just date/group is used).
                if ($rec->availcount) {
                    $availrecs = $DB->get_records('course_modules_availability', array('coursemoduleid' => $rec->id));
                } else {
                    $availrecs = array();
                }
                if ($rec->fieldcount) {
                    $fieldrecs = $DB->get_records_sql("\n                            SELECT cmaf.userfield, cmaf.operator, cmaf.value, uif.shortname\n                              FROM {course_modules_avail_fields} cmaf\n                         LEFT JOIN {user_info_field} uif ON uif.id = cmaf.customfieldid\n                             WHERE cmaf.coursemoduleid = ?", array($rec->id));
                } else {
                    $fieldrecs = array();
                }
                // Update item.
                $availability = upgrade_availability_item(0, 0, $rec->availablefrom, $rec->availableuntil, $rec->showavailability, $availrecs, $fieldrecs);
                if ($availability) {
                    $DB->set_field('course_modules', 'availability', $availability, array('id' => $rec->id));
                }
                // Update progress.
                $done++;
            }
            $rs->close();
            // Loop through all course-sections.
            // (Performance: On the OU system, this took <1 second for, er, 150 results.)
            $done = 0;
            $rs = $DB->get_recordset_sql("\n                    SELECT cs.id, cs.groupingid, cs.availablefrom,\n                           cs.availableuntil, cs.showavailability,\n                           COUNT(DISTINCT csa.id) AS availcount,\n                           COUNT(DISTINCT csf.id) AS fieldcount\n                      FROM {course_sections} cs\n                           LEFT JOIN {course_sections_availability} csa ON csa.coursesectionid = cs.id\n                           LEFT JOIN {course_sections_avail_fields} csf ON csf.coursesectionid = cs.id\n                     WHERE cs.groupingid != 0 OR\n                           cs.availablefrom != 0 OR\n                           cs.availableuntil != 0 OR\n                           csa.id IS NOT NULL OR\n                           csf.id IS NOT NULL\n                  GROUP BY cs.id, cs.groupingid, cs.availablefrom,\n                           cs.availableuntil, cs.showavailability");
            foreach ($rs as $rec) {
                // Update progress once per second.
                if (time() != $lastupdate) {
                    $lastupdate = time();
                    $pbar->update($done + $cmcount, $cmcount + $sectcount, "Updating section availability settings ({$done}/{$sectcount})");
                }
                // Get supporting records - only if there are any (to reduce the
                // number of queries where just date/group is used).
                if ($rec->availcount) {
                    $availrecs = $DB->get_records('course_sections_availability', array('coursesectionid' => $rec->id));
                } else {
                    $availrecs = array();
                }
                if ($rec->fieldcount) {
                    $fieldrecs = $DB->get_records_sql("\n                            SELECT csaf.userfield, csaf.operator, csaf.value, uif.shortname\n                              FROM {course_sections_avail_fields} csaf\n                         LEFT JOIN {user_info_field} uif ON uif.id = csaf.customfieldid\n                             WHERE csaf.coursesectionid = ?", array($rec->id));
                } else {
                    $fieldrecs = array();
                }
                // Update item.
                $availability = upgrade_availability_item($rec->groupingid ? 1 : 0, $rec->groupingid, $rec->availablefrom, $rec->availableuntil, $rec->showavailability, $availrecs, $fieldrecs);
                if ($availability) {
                    $DB->set_field('course_sections', 'availability', $availability, array('id' => $rec->id));
                }
                // Update progress.
                $done++;
            }
            $rs->close();
            // Final progress update for 100%.
            $pbar->update($done + $cmcount, $cmcount + $sectcount, 'Availability settings updated for ' . ($cmcount + $sectcount) . ' activities and sections');
            $transaction->allow_commit();
        }
        // Drop tables which are not necessary because they are covered by the
        // new availability fields.
        $table = new xmldb_table('course_modules_availability');
        if ($dbman->table_exists($table)) {
            $dbman->drop_table($table);
        }
        $table = new xmldb_table('course_modules_avail_fields');
        if ($dbman->table_exists($table)) {
            $dbman->drop_table($table);
        }
        $table = new xmldb_table('course_sections_availability');
        if ($dbman->table_exists($table)) {
            $dbman->drop_table($table);
        }
        $table = new xmldb_table('course_sections_avail_fields');
        if ($dbman->table_exists($table)) {
            $dbman->drop_table($table);
        }
        // Drop unnnecessary fields from course_modules.
        $table = new xmldb_table('course_modules');
        $field = new xmldb_field('availablefrom');
        if ($dbman->field_exists($table, $field)) {
            $dbman->drop_field($table, $field);
        }
        $field = new xmldb_field('availableuntil');
        if ($dbman->field_exists($table, $field)) {
            $dbman->drop_field($table, $field);
        }
        $field = new xmldb_field('showavailability');
        if ($dbman->field_exists($table, $field)) {
            $dbman->drop_field($table, $field);
        }
        // Drop unnnecessary fields from course_sections.
        $table = new xmldb_table('course_sections');
        $field = new xmldb_field('availablefrom');
        if ($dbman->field_exists($table, $field)) {
            $dbman->drop_field($table, $field);
        }
        $field = new xmldb_field('availableuntil');
        if ($dbman->field_exists($table, $field)) {
            $dbman->drop_field($table, $field);
        }
        $field = new xmldb_field('showavailability');
        if ($dbman->field_exists($table, $field)) {
            $dbman->drop_field($table, $field);
        }
        $field = new xmldb_field('groupingid');
        if ($dbman->field_exists($table, $field)) {
            $dbman->drop_field($table, $field);
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2014040800.0);
    }
    if ($oldversion < 2014041500.01) {
        $table = new xmldb_table('user_info_data');
        $sql = 'SELECT DISTINCT info.id
                  FROM {user_info_data} info
            INNER JOIN {user_info_data} older
                    ON info.fieldid = older.fieldid
                   AND info.userid = older.userid
                   AND older.id < info.id';
        $transaction = $DB->start_delegated_transaction();
        $rs = $DB->get_recordset_sql($sql);
        foreach ($rs as $rec) {
            $DB->delete_records('user_info_data', array('id' => $rec->id));
        }
        $transaction->allow_commit();
        $oldindex = new xmldb_index('userid_fieldid', XMLDB_INDEX_NOTUNIQUE, array('userid', 'fieldid'));
        if ($dbman->index_exists($table, $oldindex)) {
            $dbman->drop_index($table, $oldindex);
        }
        $newindex = new xmldb_index('userid_fieldid', XMLDB_INDEX_UNIQUE, array('userid', 'fieldid'));
        if (!$dbman->index_exists($table, $newindex)) {
            $dbman->add_index($table, $newindex);
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2014041500.01);
    }
    if ($oldversion < 2014050100.0) {
        // Fixing possible wrong MIME type for DigiDoc files.
        $extensions = array('%.bdoc', '%.cdoc', '%.ddoc');
        $select = $DB->sql_like('filename', '?', false);
        foreach ($extensions as $extension) {
            $DB->set_field_select('files', 'mimetype', 'application/x-digidoc', $select, array($extension));
        }
        upgrade_main_savepoint(true, 2014050100.0);
    }
    // Moodle v2.7.0 release upgrade line.
    // Put any upgrade step following this.
    // MDL-32543 Make sure that the log table has correct length for action and url fields.
    if ($oldversion < 2014051200.02) {
        $table = new xmldb_table('log');
        $columns = $DB->get_columns('log');
        if ($columns['action']->max_length < 40) {
            $index1 = new xmldb_index('course-module-action', XMLDB_INDEX_NOTUNIQUE, array('course', 'module', 'action'));
            if ($dbman->index_exists($table, $index1)) {
                $dbman->drop_index($table, $index1);
            }
            $index2 = new xmldb_index('action', XMLDB_INDEX_NOTUNIQUE, array('action'));
            if ($dbman->index_exists($table, $index2)) {
                $dbman->drop_index($table, $index2);
            }
            $field = new xmldb_field('action', XMLDB_TYPE_CHAR, '40', null, XMLDB_NOTNULL, null, null, 'cmid');
            $dbman->change_field_precision($table, $field);
            $dbman->add_index($table, $index1);
            $dbman->add_index($table, $index2);
        }
        if ($columns['url']->max_length < 100) {
            $field = new xmldb_field('url', XMLDB_TYPE_CHAR, '100', null, XMLDB_NOTNULL, null, null, 'action');
            $dbman->change_field_precision($table, $field);
        }
        upgrade_main_savepoint(true, 2014051200.02);
    }
    if ($oldversion < 2014060300.0) {
        $gspath = get_config('assignfeedback_editpdf', 'gspath');
        if ($gspath !== false) {
            set_config('pathtogs', $gspath);
            unset_config('gspath', 'assignfeedback_editpdf');
        }
        upgrade_main_savepoint(true, 2014060300.0);
    }
    if ($oldversion < 2014061000.0) {
        // Fixing possible wrong MIME type for Publisher files.
        $filetypes = array('%.pub' => 'application/x-mspublisher');
        upgrade_mimetypes($filetypes);
        upgrade_main_savepoint(true, 2014061000.0);
    }
    if ($oldversion < 2014062600.01) {
        // We only want to delete DragMath if the directory no longer exists. If the directory
        // is present then it means it has been restored, so do not perform the uninstall.
        if (!check_dir_exists($CFG->libdir . '/editor/tinymce/plugins/dragmath', false)) {
            // Purge DragMath plugin which is incompatible with GNU GPL license.
            unset_all_config_for_plugin('tinymce_dragmath');
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2014062600.01);
    }
    // Switch the order of the fields in the files_reference index, to improve the performance of search_references.
    if ($oldversion < 2014070100.0) {
        $table = new xmldb_table('files_reference');
        $index = new xmldb_index('uq_external_file', XMLDB_INDEX_UNIQUE, array('repositoryid', 'referencehash'));
        if ($dbman->index_exists($table, $index)) {
            $dbman->drop_index($table, $index);
        }
        upgrade_main_savepoint(true, 2014070100.0);
    }
    if ($oldversion < 2014070101.0) {
        $table = new xmldb_table('files_reference');
        $index = new xmldb_index('uq_external_file', XMLDB_INDEX_UNIQUE, array('referencehash', 'repositoryid'));
        if (!$dbman->index_exists($table, $index)) {
            $dbman->add_index($table, $index);
        }
        upgrade_main_savepoint(true, 2014070101.0);
    }
    if ($oldversion < 2014072400.01) {
        $table = new xmldb_table('user_devices');
        $oldindex = new xmldb_index('pushid-platform', XMLDB_KEY_UNIQUE, array('pushid', 'platform'));
        if ($dbman->index_exists($table, $oldindex)) {
            $key = new xmldb_key('pushid-platform', XMLDB_KEY_UNIQUE, array('pushid', 'platform'));
            $dbman->drop_key($table, $key);
        }
        upgrade_main_savepoint(true, 2014072400.01);
    }
    if ($oldversion < 2014080801.0) {
        // Define index behaviour (not unique) to be added to question_attempts.
        $table = new xmldb_table('question_attempts');
        $index = new xmldb_index('behaviour', XMLDB_INDEX_NOTUNIQUE, array('behaviour'));
        // Conditionally launch add index behaviour.
        if (!$dbman->index_exists($table, $index)) {
            $dbman->add_index($table, $index);
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2014080801.0);
    }
    if ($oldversion < 2014082900.01) {
        // Fixing possible wrong MIME type for 7-zip and Rar files.
        $filetypes = array('%.7z' => 'application/x-7z-compressed', '%.rar' => 'application/x-rar-compressed');
        upgrade_mimetypes($filetypes);
        upgrade_main_savepoint(true, 2014082900.01);
    }
    if ($oldversion < 2014082900.02) {
        // Replace groupmembersonly usage with new availability system.
        $transaction = $DB->start_delegated_transaction();
        if ($CFG->enablegroupmembersonly) {
            // If it isn't already enabled, we need to enable availability.
            if (!$CFG->enableavailability) {
                set_config('enableavailability', 1);
            }
            // Count all course-modules with groupmembersonly set (for progress
            // bar).
            $total = $DB->count_records('course_modules', array('groupmembersonly' => 1));
            $pbar = new progress_bar('upgradegroupmembersonly', 500, true);
            // Get all these course-modules, one at a time.
            $rs = $DB->get_recordset('course_modules', array('groupmembersonly' => 1), 'course, id');
            $i = 0;
            foreach ($rs as $cm) {
                // Calculate and set new availability value.
                $availability = upgrade_group_members_only($cm->groupingid, $cm->availability);
                $DB->set_field('course_modules', 'availability', $availability, array('id' => $cm->id));
                // Update progress.
                $i++;
                $pbar->update($i, $total, "Upgrading groupmembersonly settings - {$i}/{$total}.");
            }
            $rs->close();
        }
        // Define field groupmembersonly to be dropped from course_modules.
        $table = new xmldb_table('course_modules');
        $field = new xmldb_field('groupmembersonly');
        // Conditionally launch drop field groupmembersonly.
        if ($dbman->field_exists($table, $field)) {
            $dbman->drop_field($table, $field);
        }
        // Unset old config variable.
        unset_config('enablegroupmembersonly');
        $transaction->allow_commit();
        upgrade_main_savepoint(true, 2014082900.02);
    }
    if ($oldversion < 2014100100.0) {
        // Define table messageinbound_handlers to be created.
        $table = new xmldb_table('messageinbound_handlers');
        // Adding fields to table messageinbound_handlers.
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('component', XMLDB_TYPE_CHAR, '100', null, XMLDB_NOTNULL, null, null);
        $table->add_field('classname', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null);
        $table->add_field('defaultexpiration', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '86400');
        $table->add_field('validateaddress', XMLDB_TYPE_INTEGER, '1', null, XMLDB_NOTNULL, null, '1');
        $table->add_field('enabled', XMLDB_TYPE_INTEGER, '1', null, XMLDB_NOTNULL, null, '0');
        // Adding keys to table messageinbound_handlers.
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->add_key('classname', XMLDB_KEY_UNIQUE, array('classname'));
        // Conditionally launch create table for messageinbound_handlers.
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        // Define table messageinbound_datakeys to be created.
        $table = new xmldb_table('messageinbound_datakeys');
        // Adding fields to table messageinbound_datakeys.
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('handler', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null);
        $table->add_field('datavalue', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null);
        $table->add_field('datakey', XMLDB_TYPE_CHAR, '64', null, null, null, null);
        $table->add_field('timecreated', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null);
        $table->add_field('expires', XMLDB_TYPE_INTEGER, '10', null, null, null, null);
        // Adding keys to table messageinbound_datakeys.
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->add_key('handler_datavalue', XMLDB_KEY_UNIQUE, array('handler', 'datavalue'));
        $table->add_key('handler', XMLDB_KEY_FOREIGN, array('handler'), 'messageinbound_handlers', array('id'));
        // Conditionally launch create table for messageinbound_datakeys.
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2014100100.0);
    }
    if ($oldversion < 2014100600.01) {
        // Define field aggregationstatus to be added to grade_grades.
        $table = new xmldb_table('grade_grades');
        $field = new xmldb_field('aggregationstatus', XMLDB_TYPE_CHAR, '10', null, XMLDB_NOTNULL, null, 'unknown', 'timemodified');
        // Conditionally launch add field aggregationstatus.
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        $field = new xmldb_field('aggregationweight', XMLDB_TYPE_NUMBER, '10, 5', null, null, null, null, 'aggregationstatus');
        // Conditionally launch add field aggregationweight.
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        // Define field aggregationcoef2 to be added to grade_items.
        $table = new xmldb_table('grade_items');
        $field = new xmldb_field('aggregationcoef2', XMLDB_TYPE_NUMBER, '10, 5', null, XMLDB_NOTNULL, null, '0', 'aggregationcoef');
        // Conditionally launch add field aggregationcoef2.
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        $field = new xmldb_field('weightoverride', XMLDB_TYPE_INTEGER, '1', null, XMLDB_NOTNULL, null, '0', 'needsupdate');
        // Conditionally launch add field weightoverride.
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2014100600.01);
    }
    if ($oldversion < 2014100600.02) {
        // Define field aggregationcoef2 to be added to grade_items_history.
        $table = new xmldb_table('grade_items_history');
        $field = new xmldb_field('aggregationcoef2', XMLDB_TYPE_NUMBER, '10, 5', null, XMLDB_NOTNULL, null, '0', 'aggregationcoef');
        // Conditionally launch add field aggregationcoef2.
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2014100600.02);
    }
    if ($oldversion < 2014100600.03) {
        // Define field weightoverride to be added to grade_items_history.
        $table = new xmldb_table('grade_items_history');
        $field = new xmldb_field('weightoverride', XMLDB_TYPE_INTEGER, '1', null, XMLDB_NOTNULL, null, '0', 'decimals');
        // Conditionally launch add field weightoverride.
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2014100600.03);
    }
    if ($oldversion < 2014100600.04) {
        // Set flags so we can display a notice on all courses that might
        // be affected by the uprade to natural aggregation.
        if (!get_config('grades_sumofgrades_upgrade_flagged', 'core')) {
            // 13 == SUM_OF_GRADES.
            $sql = 'SELECT DISTINCT courseid
                      FROM {grade_categories}
                     WHERE aggregation = ?';
            $courses = $DB->get_records_sql($sql, array(13));
            foreach ($courses as $course) {
                set_config('show_sumofgrades_upgrade_' . $course->courseid, 1);
                // Set each of the grade items to needing an update so that when the user visits the grade reports the
                // figures will be updated.
                $DB->set_field('grade_items', 'needsupdate', 1, array('courseid' => $course->courseid));
            }
            set_config('grades_sumofgrades_upgrade_flagged', 1);
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2014100600.04);
    }
    if ($oldversion < 2014100700.0) {
        // Define table messageinbound_messagelist to be created.
        $table = new xmldb_table('messageinbound_messagelist');
        // Adding fields to table messageinbound_messagelist.
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('messageid', XMLDB_TYPE_TEXT, null, null, XMLDB_NOTNULL, null, null);
        $table->add_field('userid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null);
        $table->add_field('address', XMLDB_TYPE_TEXT, null, null, XMLDB_NOTNULL, null, null);
        $table->add_field('timecreated', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null);
        // Adding keys to table messageinbound_messagelist.
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->add_key('userid', XMLDB_KEY_FOREIGN, array('userid'), 'user', array('id'));
        // Conditionally launch create table for messageinbound_messagelist.
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2014100700.0);
    }
    if ($oldversion < 2014100700.01) {
        // Define field visible to be added to cohort.
        $table = new xmldb_table('cohort');
        $field = new xmldb_field('visible', XMLDB_TYPE_INTEGER, '1', null, XMLDB_NOTNULL, null, '1', 'descriptionformat');
        // Conditionally launch add field visible.
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2014100700.01);
    }
    if ($oldversion < 2014100800.0) {
        // Remove qformat_learnwise (unless it has manually been added back).
        if (!file_exists($CFG->dirroot . '/question/format/learnwise/format.php')) {
            unset_all_config_for_plugin('qformat_learnwise');
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2014100800.0);
    }
    if ($oldversion < 2014101001.0) {
        // Some blocks added themselves to the my/ home page, but they did not declare the
        // subpage of the default my home page. While the upgrade script has been fixed, this
        // upgrade script will fix the data that was wrongly added.
        // We only proceed if we can find the right entry from my_pages. Private => 1 refers to
        // the constant value MY_PAGE_PRIVATE.
        if ($systempage = $DB->get_record('my_pages', array('userid' => null, 'private' => 1))) {
            // Select the blocks there could have been automatically added. showinsubcontexts is hardcoded to 0
            // because it is possible for administrators to have forced it on the my/ page by adding it to the
            // system directly rather than updating the default my/ page.
            $blocks = array('course_overview', 'private_files', 'online_users', 'badges', 'calendar_month', 'calendar_upcoming');
            list($blocksql, $blockparams) = $DB->get_in_or_equal($blocks, SQL_PARAMS_NAMED);
            $select = "parentcontextid = :contextid\n                    AND pagetypepattern = :page\n                    AND showinsubcontexts = 0\n                    AND subpagepattern IS NULL\n                    AND blockname {$blocksql}";
            $params = array('contextid' => context_system::instance()->id, 'page' => 'my-index');
            $params = array_merge($params, $blockparams);
            $DB->set_field_select('block_instances', 'subpagepattern', $systempage->id, $select, $params);
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2014101001.0);
    }
    if ($oldversion < 2014102000.0) {
        // Define field aggregatesubcats to be dropped from grade_categories.
        $table = new xmldb_table('grade_categories');
        $field = new xmldb_field('aggregatesubcats');
        // Conditionally launch drop field aggregatesubcats.
        if ($dbman->field_exists($table, $field)) {
            $sql = 'SELECT DISTINCT courseid
                      FROM {grade_categories}
                     WHERE aggregatesubcats = ?';
            $courses = $DB->get_records_sql($sql, array(1));
            foreach ($courses as $course) {
                set_config('show_aggregatesubcats_upgrade_' . $course->courseid, 1);
                // Set each of the grade items to needing an update so that when the user visits the grade reports the
                // figures will be updated.
                $DB->set_field('grade_items', 'needsupdate', 1, array('courseid' => $course->courseid));
            }
            $dbman->drop_field($table, $field);
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2014102000.0);
    }
    return true;
}
/**
 * Migrate url module data from 1.9 resource_old table to new url table
 * @return void
 */
function url_20_migrate()
{
    global $CFG, $DB;
    require_once "{$CFG->libdir}/filelib.php";
    require_once "{$CFG->libdir}/resourcelib.php";
    require_once "{$CFG->dirroot}/course/lib.php";
    if (!file_exists("{$CFG->dirroot}/mod/resource/db/upgradelib.php")) {
        // bad luck, somebody deleted resource module
        return;
    }
    require_once "{$CFG->dirroot}/mod/resource/db/upgradelib.php";
    // create resource_old table and copy resource table there if needed
    if (!resource_20_prepare_migration()) {
        // no modules or fresh install
        return;
    }
    $candidates = $DB->get_recordset('resource_old', array('type' => 'file', 'migrated' => 0));
    if (!$candidates->valid()) {
        $candidates->close();
        // Not going to iterate (but exit), close rs
        return;
    }
    foreach ($candidates as $candidate) {
        $path = $candidate->reference;
        $siteid = get_site()->id;
        if (strpos($path, 'LOCALPATH') === 0) {
            // ignore not maintained local files - sorry
            continue;
        } else {
            if (!strpos($path, '://')) {
                // not URL
                continue;
            } else {
                if (preg_match("|{$CFG->wwwroot}/file.php(\\?file=)?/{$siteid}(/[^\\s'\"&\\?#]+)|", $path, $matches)) {
                    // handled by resource module
                    continue;
                } else {
                    if (preg_match("|{$CFG->wwwroot}/file.php(\\?file=)?/{$candidate->course}(/[^\\s'\"&\\?#]+)|", $path, $matches)) {
                        // handled by resource module
                        continue;
                    }
                }
            }
        }
        upgrade_set_timeout();
        if ($CFG->texteditors !== 'textarea') {
            $intro = text_to_html($candidate->intro, false, false, true);
            $introformat = FORMAT_HTML;
        } else {
            $intro = $candidate->intro;
            $introformat = FORMAT_MOODLE;
        }
        $url = new stdClass();
        $url->course = $candidate->course;
        $url->name = $candidate->name;
        $url->intro = $intro;
        $url->introformat = $introformat;
        $url->externalurl = $path;
        $url->timemodified = time();
        $options = array('printheading' => 0, 'printintro' => 1);
        $parameters = array();
        if ($candidate->options == 'frame') {
            $url->display = RESOURCELIB_DISPLAY_FRAME;
        } else {
            if ($candidate->options == 'objectframe') {
                $url->display = RESOURCELIB_DISPLAY_EMBED;
            } else {
                if ($candidate->popup) {
                    $url->display = RESOURCELIB_DISPLAY_POPUP;
                    if ($candidate->popup) {
                        $rawoptions = explode(',', $candidate->popup);
                        foreach ($rawoptions as $rawoption) {
                            list($name, $value) = explode('=', trim($rawoption), 2);
                            if ($value > 0 and ($name == 'width' or $name == 'height')) {
                                $options['popup' . $name] = $value;
                                continue;
                            }
                        }
                    }
                } else {
                    $url->display = RESOURCELIB_DISPLAY_AUTO;
                }
            }
        }
        $url->displayoptions = serialize($options);
        if ($candidate->alltext) {
            $rawoptions = explode(',', $candidate->alltext);
            foreach ($rawoptions as $rawoption) {
                list($variable, $parameter) = explode('=', trim($rawoption), 2);
                $parameters[$parameter] = $variable;
            }
        }
        $url->parameters = serialize($parameters);
        if (!($url = resource_migrate_to_module('url', $candidate, $url))) {
            continue;
        }
    }
    $candidates->close();
    // clear all course modinfo caches
    rebuild_course_cache(0, true);
}
/**
 *
 * @global stdClass $CFG
 * @global stdClass $USER
 * @global moodle_database $DB
 * @global core_renderer $OUTPUT
 * @param int $oldversion
 * @return bool always true
 */
function xmldb_main_upgrade($oldversion)
{
    global $CFG, $USER, $DB, $OUTPUT;
    require_once $CFG->libdir . '/db/upgradelib.php';
    // Core Upgrade-related functions
    $dbman = $DB->get_manager();
    // loads ddl manager and xmldb classes
    ////////////////////////////////////////
    ///upgrade supported only from 1.9.x ///
    ////////////////////////////////////////
    if ($oldversion < 2008030600) {
        //NOTE: this table was added much later later in dev cycle, but we need it here, upgrades from pre PR1 not supported
        /// Define table upgrade_log to be created
        $table = new xmldb_table('upgrade_log');
        /// Adding fields to table upgrade_log
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('type', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null);
        $table->add_field('plugin', XMLDB_TYPE_CHAR, '100', null, null, null, null);
        $table->add_field('version', XMLDB_TYPE_CHAR, '100', null, null, null, null);
        $table->add_field('targetversion', XMLDB_TYPE_CHAR, '100', null, null, null, null);
        $table->add_field('info', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null);
        $table->add_field('details', XMLDB_TYPE_TEXT, 'small', null, null, null, null);
        $table->add_field('backtrace', XMLDB_TYPE_TEXT, 'small', null, null, null, null);
        $table->add_field('userid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('timemodified', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        /// Adding keys to table upgrade_log
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->add_key('userid', XMLDB_KEY_FOREIGN, array('userid'), 'user', array('id'));
        /// Adding indexes to table upgrade_log
        $table->add_index('timemodified', XMLDB_INDEX_NOTUNIQUE, array('timemodified'));
        $table->add_index('type-timemodified', XMLDB_INDEX_NOTUNIQUE, array('type', 'timemodified'));
        /// Create table for upgrade_log
        $dbman->create_table($table);
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2008030600);
    }
    if ($oldversion < 2008030601) {
        //NOTE: this table was added much later later in dev cycle, but we need it here, upgrades from pre PR1 not supported
        /// Define table log_queries to be created
        $table = new xmldb_table('log_queries');
        /// Adding fields to table log_queries
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('qtype', XMLDB_TYPE_INTEGER, '5', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('sqltext', XMLDB_TYPE_TEXT, 'medium', null, XMLDB_NOTNULL, null, null);
        $table->add_field('sqlparams', XMLDB_TYPE_TEXT, 'big', null, null, null, null);
        $table->add_field('error', XMLDB_TYPE_INTEGER, '5', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0');
        $table->add_field('info', XMLDB_TYPE_TEXT, 'small', null, null, null, null);
        $table->add_field('backtrace', XMLDB_TYPE_TEXT, 'small', null, null, null, null);
        $table->add_field('exectime', XMLDB_TYPE_NUMBER, '10, 5', null, XMLDB_NOTNULL, null, null);
        $table->add_field('timelogged', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        /// Adding keys to table log_queries
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        /// Conditionally launch create table for log_queries
        $dbman->create_table($table);
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2008030601);
    }
    if ($oldversion < 2008030602) {
        @unlink($CFG->dataroot . '/cache/languages');
        if (file_exists("{$CFG->dataroot}/lang")) {
            // rename old lang directory so that the new and old langs do not mix
            if (rename("{$CFG->dataroot}/lang", "{$CFG->dataroot}/oldlang")) {
                $oldlang = "{$CFG->dataroot}/oldlang";
            } else {
                $oldlang = "{$CFG->dataroot}/lang";
            }
        } else {
            $oldlang = '';
        }
        // TODO: fetch previously installed languages ("*_utf8") found in $oldlang from moodle.org
        upgrade_set_timeout(60 * 20);
        // this may take a while
        // TODO: add some info file to $oldlang describing what to do with "$oldlang/*_utf8_local" dirs
        // Main savepoint reached
        upgrade_main_savepoint(true, 2008030602);
    }
    if ($oldversion < 2008030700) {
        upgrade_set_timeout(60 * 20);
        // this may take a while
        /// Define index contextid-lowerboundary (not unique) to be dropped form grade_letters
        $table = new xmldb_table('grade_letters');
        $index = new xmldb_index('contextid-lowerboundary', XMLDB_INDEX_NOTUNIQUE, array('contextid', 'lowerboundary'));
        /// Launch drop index contextid-lowerboundary
        if ($dbman->index_exists($table, $index)) {
            $dbman->drop_index($table, $index);
        }
        /// Define index contextid-lowerboundary-letter (unique) to be added to grade_letters
        $table = new xmldb_table('grade_letters');
        $index = new xmldb_index('contextid-lowerboundary-letter', XMLDB_INDEX_UNIQUE, array('contextid', 'lowerboundary', 'letter'));
        /// Launch add index contextid-lowerboundary-letter
        $dbman->add_index($table, $index);
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2008030700);
    }
    if ($oldversion < 2008050100) {
        // Update courses that used weekscss to weeks
        $DB->set_field('course', 'format', 'weeks', array('format' => 'weekscss'));
        upgrade_main_savepoint(true, 2008050100);
    }
    if ($oldversion < 2008050200) {
        // remove unused config options
        unset_config('statsrolesupgraded');
        upgrade_main_savepoint(true, 2008050200);
    }
    if ($oldversion < 2008050700) {
        upgrade_set_timeout(60 * 20);
        // this may take a while
        /// Fix minor problem caused by MDL-5482.
        require_once $CFG->dirroot . '/question/upgrade.php';
        question_fix_random_question_parents();
        upgrade_main_savepoint(true, 2008050700);
    }
    if ($oldversion < 2008051201) {
        echo $OUTPUT->notification('Increasing size of user idnumber field, this may take a while...', 'notifysuccess');
        upgrade_set_timeout(60 * 20);
        // this may take a while
        /// Under MySQL and Postgres... detect old NULL contents and change them by correct empty string. MDL-14859
        $dbfamily = $DB->get_dbfamily();
        if ($dbfamily === 'mysql' || $dbfamily === 'postgres') {
            $DB->execute("UPDATE {user} SET idnumber = '' WHERE idnumber IS NULL");
        }
        /// Define index idnumber (not unique) to be dropped form user
        $table = new xmldb_table('user');
        $index = new xmldb_index('idnumber', XMLDB_INDEX_NOTUNIQUE, array('idnumber'));
        /// Launch drop index idnumber
        if ($dbman->index_exists($table, $index)) {
            $dbman->drop_index($table, $index);
        }
        /// Changing precision of field idnumber on table user to (255)
        $table = new xmldb_table('user');
        $field = new xmldb_field('idnumber', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, 'password');
        /// Launch change of precision for field idnumber
        $dbman->change_field_precision($table, $field);
        /// Launch add index idnumber again
        $index = new xmldb_index('idnumber', XMLDB_INDEX_NOTUNIQUE, array('idnumber'));
        $dbman->add_index($table, $index);
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2008051201);
    }
    if ($oldversion < 2008051203) {
        $table = new xmldb_table('mnet_enrol_course');
        $field = new xmldb_field('sortorder', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, 0);
        $dbman->change_field_precision($table, $field);
        upgrade_main_savepoint(true, 2008051203);
    }
    if ($oldversion < 2008063001) {
        upgrade_set_timeout(60 * 20);
        // this may take a while
        // table to be modified
        $table = new xmldb_table('tag_instance');
        // add field
        $field = new xmldb_field('tiuserid');
        if (!$dbman->field_exists($table, $field)) {
            $field->set_attributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, 0, 'itemid');
            $dbman->add_field($table, $field);
        }
        // modify index
        $index = new xmldb_index('itemtype-itemid-tagid');
        $index->set_attributes(XMLDB_INDEX_UNIQUE, array('itemtype', 'itemid', 'tagid'));
        if ($dbman->index_exists($table, $index)) {
            $dbman->drop_index($table, $index);
        }
        $index = new xmldb_index('itemtype-itemid-tagid-tiuserid');
        $index->set_attributes(XMLDB_INDEX_UNIQUE, array('itemtype', 'itemid', 'tagid', 'tiuserid'));
        if (!$dbman->index_exists($table, $index)) {
            $dbman->add_index($table, $index);
        }
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2008063001);
    }
    if ($oldversion < 2008070300) {
        $DB->delete_records_select('role_names', $DB->sql_isempty('role_names', 'name', false, false));
        upgrade_main_savepoint(true, 2008070300);
    }
    if ($oldversion < 2008070701) {
        /// Define table portfolio_instance to be created
        $table = new xmldb_table('portfolio_instance');
        /// Adding fields to table portfolio_instance
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('plugin', XMLDB_TYPE_CHAR, '50', null, XMLDB_NOTNULL, null, null);
        $table->add_field('name', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null);
        $table->add_field('visible', XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '1');
        /// Adding keys to table portfolio_instance
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        /// Conditionally launch create table for portfolio_instance
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        /// Define table portfolio_instance_config to be created
        $table = new xmldb_table('portfolio_instance_config');
        /// Adding fields to table portfolio_instance_config
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('instance', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('name', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null);
        $table->add_field('value', XMLDB_TYPE_TEXT, 'big', null, null, null, null);
        /// Adding keys to table portfolio_instance_config
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->add_key('instance', XMLDB_KEY_FOREIGN, array('instance'), 'portfolio_instance', array('id'));
        /// Adding indexes to table portfolio_instance_config
        $table->add_index('name', XMLDB_INDEX_NOTUNIQUE, array('name'));
        /// Conditionally launch create table for portfolio_instance_config
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        /// Define table portfolio_instance_user to be created
        $table = new xmldb_table('portfolio_instance_user');
        /// Adding fields to table portfolio_instance_user
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null);
        $table->add_field('instance', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('userid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('name', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null);
        $table->add_field('value', XMLDB_TYPE_TEXT, 'big', null, null, null, null);
        /// Adding keys to table portfolio_instance_user
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->add_key('instancefk', XMLDB_KEY_FOREIGN, array('instance'), 'portfolio_instance', array('id'));
        $table->add_key('userfk', XMLDB_KEY_FOREIGN, array('userid'), 'user', array('id'));
        /// Conditionally launch create table for portfolio_instance_user
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2008070701);
    }
    if ($oldversion < 2008072400) {
        /// Create the database tables for message_processors
        $table = new xmldb_table('message_processors');
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('name', XMLDB_TYPE_CHAR, '166', null, XMLDB_NOTNULL, null, null);
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        $dbman->create_table($table);
        /// delete old and create new fields
        $table = new xmldb_table('message');
        $field = new xmldb_field('messagetype');
        $dbman->drop_field($table, $field);
        /// fields to rename
        $field = new xmldb_field('message');
        $field->set_attributes(XMLDB_TYPE_TEXT, 'small', null, null, null, null, null);
        $dbman->rename_field($table, $field, 'fullmessage');
        $field = new xmldb_field('format');
        $field->set_attributes(XMLDB_TYPE_INTEGER, '4', XMLDB_UNSIGNED, null, null, '0', null);
        $dbman->rename_field($table, $field, 'fullmessageformat');
        /// new message fields
        $field = new xmldb_field('subject');
        $field->set_attributes(XMLDB_TYPE_TEXT, 'small', null, null, null, null, null);
        $dbman->add_field($table, $field);
        $field = new xmldb_field('fullmessagehtml');
        $field->set_attributes(XMLDB_TYPE_TEXT, 'medium', null, null, null, null, null);
        $dbman->add_field($table, $field);
        $field = new xmldb_field('smallmessage');
        $field->set_attributes(XMLDB_TYPE_TEXT, 'small', null, null, null, null, null);
        $dbman->add_field($table, $field);
        $table = new xmldb_table('message_read');
        $field = new xmldb_field('messagetype');
        $dbman->drop_field($table, $field);
        $field = new xmldb_field('mailed');
        $dbman->drop_field($table, $field);
        /// fields to rename
        $field = new xmldb_field('message');
        $field->set_attributes(XMLDB_TYPE_TEXT, 'small', null, null, null, null, null);
        $dbman->rename_field($table, $field, 'fullmessage');
        $field = new xmldb_field('format');
        $field->set_attributes(XMLDB_TYPE_INTEGER, '4', XMLDB_UNSIGNED, null, null, '0', null);
        $dbman->rename_field($table, $field, 'fullmessageformat');
        /// new message fields
        $field = new xmldb_field('subject');
        $field->set_attributes(XMLDB_TYPE_TEXT, 'small', null, null, null, null, null);
        $dbman->add_field($table, $field);
        $field = new xmldb_field('fullmessagehtml');
        $field->set_attributes(XMLDB_TYPE_TEXT, 'medium', null, null, null, null, null);
        $dbman->add_field($table, $field);
        $field = new xmldb_field('smallmessage');
        $field->set_attributes(XMLDB_TYPE_TEXT, 'small', null, null, null, null, null);
        $dbman->add_field($table, $field);
        /// new table
        $table = new xmldb_table('message_working');
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('unreadmessageid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('processorid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        $dbman->create_table($table);
        upgrade_main_savepoint(true, 2008072400);
    }
    if ($oldversion < 2008072800) {
        /// Define field enablecompletion to be added to course
        $table = new xmldb_table('course');
        $field = new xmldb_field('enablecompletion');
        $field->set_attributes(XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0', 'defaultrole');
        /// Launch add field enablecompletion
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        /// Define field completion to be added to course_modules
        $table = new xmldb_table('course_modules');
        $field = new xmldb_field('completion');
        $field->set_attributes(XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0', 'groupmembersonly');
        /// Launch add field completion
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        /// Define field completiongradeitemnumber to be added to course_modules
        $field = new xmldb_field('completiongradeitemnumber');
        $field->set_attributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, 'completion');
        /// Launch add field completiongradeitemnumber
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        /// Define field completionview to be added to course_modules
        $field = new xmldb_field('completionview');
        $field->set_attributes(XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0', 'completiongradeitemnumber');
        /// Launch add field completionview
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        /// Define field completionexpected to be added to course_modules
        $field = new xmldb_field('completionexpected');
        $field->set_attributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0', 'completionview');
        /// Launch add field completionexpected
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        /// Define table course_modules_completion to be created
        $table = new xmldb_table('course_modules_completion');
        if (!$dbman->table_exists($table)) {
            /// Adding fields to table course_modules_completion
            $table->add_field('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
            $table->add_field('coursemoduleid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
            $table->add_field('userid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
            $table->add_field('completionstate', XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
            $table->add_field('viewed', XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, null, null, null);
            $table->add_field('timemodified', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
            /// Adding keys to table course_modules_completion
            $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
            /// Adding indexes to table course_modules_completion
            $table->add_index('coursemoduleid', XMLDB_INDEX_NOTUNIQUE, array('coursemoduleid'));
            $table->add_index('userid', XMLDB_INDEX_NOTUNIQUE, array('userid'));
            /// Launch create table for course_modules_completion
            $dbman->create_table($table);
        }
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2008072800);
    }
    if ($oldversion < 2008073000) {
        /// Define table portfolio_log to be created
        $table = new xmldb_table('portfolio_log');
        /// Adding fields to table portfolio_log
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('userid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('time', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('portfolio', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('caller_class', XMLDB_TYPE_CHAR, '150', null, XMLDB_NOTNULL, null, null);
        $table->add_field('caller_file', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null);
        $table->add_field('caller_sha1', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null);
        $table->add_field('tempdataid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0');
        $table->add_field('returnurl', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null);
        $table->add_field('continueurl', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null);
        /// Adding keys to table portfolio_log
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->add_key('userfk', XMLDB_KEY_FOREIGN, array('userid'), 'user', array('id'));
        $table->add_key('portfoliofk', XMLDB_KEY_FOREIGN, array('portfolio'), 'portfolio_instance', array('id'));
        /// Conditionally launch create table for portfolio_log
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2008073000);
    }
    if ($oldversion < 2008073104) {
        /// Drop old table that might exist for some people
        $table = new xmldb_table('message_providers');
        if ($dbman->table_exists($table)) {
            $dbman->drop_table($table);
        }
        /// Define table message_providers to be created
        $table = new xmldb_table('message_providers');
        /// Adding fields to table message_providers
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('name', XMLDB_TYPE_CHAR, '100', null, XMLDB_NOTNULL, null, null);
        $table->add_field('component', XMLDB_TYPE_CHAR, '200', null, XMLDB_NOTNULL, null, null);
        $table->add_field('capability', XMLDB_TYPE_CHAR, '255', null, null, null, null);
        /// Adding keys to table message_providers
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        /// Adding indexes to table message_providers
        $table->add_index('componentname', XMLDB_INDEX_UNIQUE, array('component', 'name'));
        /// Create table for message_providers
        $dbman->create_table($table);
        upgrade_main_savepoint(true, 2008073104);
    }
    if ($oldversion < 2008073111) {
        /// Define table files to be created
        $table = new xmldb_table('files');
        /// Adding fields to table files
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('contenthash', XMLDB_TYPE_CHAR, '40', null, XMLDB_NOTNULL, null, null);
        $table->add_field('pathnamehash', XMLDB_TYPE_CHAR, '40', null, XMLDB_NOTNULL, null, null);
        $table->add_field('contextid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('component', XMLDB_TYPE_CHAR, '100', null, XMLDB_NOTNULL, null, null);
        $table->add_field('filearea', XMLDB_TYPE_CHAR, '50', null, XMLDB_NOTNULL, null, null);
        $table->add_field('itemid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('filepath', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null);
        $table->add_field('filename', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null);
        $table->add_field('userid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null);
        $table->add_field('filesize', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('mimetype', XMLDB_TYPE_CHAR, '100', null, null, null, null);
        $table->add_field('status', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0');
        $table->add_field('source', XMLDB_TYPE_TEXT, 'small', null, null, null, null);
        $table->add_field('author', XMLDB_TYPE_CHAR, '255', null, null, null, null);
        $table->add_field('license', XMLDB_TYPE_CHAR, '255', null, null, null, null);
        $table->add_field('timecreated', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('timemodified', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        /// Adding keys to table files
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->add_key('contextid', XMLDB_KEY_FOREIGN, array('contextid'), 'context', array('id'));
        $table->add_key('userid', XMLDB_KEY_FOREIGN, array('userid'), 'user', array('id'));
        /// Adding indexes to table files
        $table->add_index('component-filearea-contextid-itemid', XMLDB_INDEX_NOTUNIQUE, array('component', 'filearea', 'contextid', 'itemid'));
        $table->add_index('contenthash', XMLDB_INDEX_NOTUNIQUE, array('contenthash'));
        $table->add_index('pathnamehash', XMLDB_INDEX_UNIQUE, array('pathnamehash'));
        /// Conditionally launch create table for files
        $dbman->create_table($table);
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2008073111);
    }
    if ($oldversion < 2008073112) {
        // Define field legacyfiles to be added to course
        $table = new xmldb_table('course');
        $field = new xmldb_field('legacyfiles', XMLDB_TYPE_INTEGER, '4', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0', 'maxbytes');
        // Launch add field legacyfiles
        $dbman->add_field($table, $field);
        // enable legacy files in all courses
        $DB->execute("UPDATE {course} SET legacyfiles = 2");
        // Main savepoint reached
        upgrade_main_savepoint(true, 2008073112);
    }
    if ($oldversion < 2008073113) {
        /// move all course, backup and other files to new filepool based storage
        upgrade_migrate_files_courses();
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2008073113);
    }
    if ($oldversion < 2008073114) {
        /// move all course, backup and other files to new filepool based storage
        upgrade_migrate_files_blog();
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2008073114);
    }
    if ($oldversion < 2008080400) {
        // Add field ssl_jump_url to mnet application, and populate existing default applications
        $table = new xmldb_table('mnet_application');
        $field = new xmldb_field('sso_jump_url');
        if (!$dbman->field_exists($table, $field)) {
            $field->set_attributes(XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null);
            $dbman->add_field($table, $field);
            $DB->set_field('mnet_application', 'sso_jump_url', '/auth/mnet/jump.php', array('name' => 'moodle'));
            $DB->set_field('mnet_application', 'sso_jump_url', '/auth/xmlrpc/jump.php', array('name' => 'mahara'));
        }
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2008080400);
    }
    if ($oldversion < 2008080500) {
        /// Define table portfolio_tempdata to be created
        $table = new xmldb_table('portfolio_tempdata');
        /// Adding fields to table portfolio_tempdata
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('data', XMLDB_TYPE_TEXT, 'big', null, null, null, null);
        $table->add_field('expirytime', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('userid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('instance', XMLDB_TYPE_INTEGER, '10', null, null, null, '0');
        /// Adding keys to table portfolio_tempdata
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->add_key('userfk', XMLDB_KEY_FOREIGN, array('userid'), 'user', array('id'));
        $table->add_key('instance', XMLDB_KEY_FOREIGN, array('instance'), 'portfolio_instance', array('id'));
        /// Conditionally launch create table for portfolio_tempdata
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2008080500);
    }
    if ($oldversion < 2008081500) {
        /// Changing the type of all the columns that the question bank uses to store grades to be NUMBER(12, 7).
        $table = new xmldb_table('question');
        $field = new xmldb_field('defaultgrade', XMLDB_TYPE_NUMBER, '12, 7', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '1.0000000', 'generalfeedback');
        $dbman->change_field_type($table, $field);
        upgrade_main_savepoint(true, 2008081500);
    }
    if ($oldversion < 2008081501) {
        $table = new xmldb_table('question');
        $field = new xmldb_field('penalty', XMLDB_TYPE_NUMBER, '12, 7', null, XMLDB_NOTNULL, null, '0.1000000', 'defaultgrade');
        $dbman->change_field_type($table, $field);
        upgrade_main_savepoint(true, 2008081501);
    }
    if ($oldversion < 2008081502) {
        $table = new xmldb_table('question_answers');
        $field = new xmldb_field('fraction', XMLDB_TYPE_NUMBER, '12, 7', null, XMLDB_NOTNULL, null, '0', 'answer');
        $dbman->change_field_type($table, $field);
        upgrade_main_savepoint(true, 2008081502);
    }
    if ($oldversion < 2008081503) {
        $table = new xmldb_table('question_sessions');
        $field = new xmldb_field('sumpenalty', XMLDB_TYPE_NUMBER, '12, 7', null, XMLDB_NOTNULL, null, '0', 'newgraded');
        $dbman->change_field_type($table, $field);
        upgrade_main_savepoint(true, 2008081503);
    }
    if ($oldversion < 2008081504) {
        $table = new xmldb_table('question_states');
        $field = new xmldb_field('grade', XMLDB_TYPE_NUMBER, '12, 7', null, XMLDB_NOTNULL, null, '0', 'event');
        $dbman->change_field_type($table, $field);
        upgrade_main_savepoint(true, 2008081504);
    }
    if ($oldversion < 2008081505) {
        $table = new xmldb_table('question_states');
        $field = new xmldb_field('raw_grade', XMLDB_TYPE_NUMBER, '12, 7', null, XMLDB_NOTNULL, null, '0', 'grade');
        $dbman->change_field_type($table, $field);
        upgrade_main_savepoint(true, 2008081505);
    }
    if ($oldversion < 2008081506) {
        $table = new xmldb_table('question_states');
        $field = new xmldb_field('penalty', XMLDB_TYPE_NUMBER, '12, 7', null, XMLDB_NOTNULL, null, '0', 'raw_grade');
        $dbman->change_field_type($table, $field);
        upgrade_main_savepoint(true, 2008081506);
    }
    if ($oldversion < 2008081600) {
        /// all 1.9 sites and fresh installs must already be unicode, not needed anymore
        unset_config('unicodedb');
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2008081600);
    }
    if ($oldversion < 2008082602) {
        /// Define table repository to be dropped
        $table = new xmldb_table('repository');
        /// Conditionally launch drop table for repository
        if ($dbman->table_exists($table)) {
            $dbman->drop_table($table);
        }
        /// Define table repository to be created
        $table = new xmldb_table('repository');
        /// Adding fields to table repository
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('type', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null);
        $table->add_field('visible', XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, null, null, '1');
        $table->add_field('sortorder', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0');
        /// Adding keys to table repository
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        /// Conditionally launch create table for repository
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        /// Define table repository_instances to be created
        $table = new xmldb_table('repository_instances');
        /// Adding fields to table repository_instances
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('name', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null);
        $table->add_field('typeid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('userid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0');
        $table->add_field('contextid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('username', XMLDB_TYPE_CHAR, '255', null, null, null, null);
        $table->add_field('password', XMLDB_TYPE_CHAR, '255', null, null, null, null);
        $table->add_field('timecreated', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null);
        $table->add_field('timemodified', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null);
        $table->add_field('readonly', XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0');
        /// Adding keys to table repository_instances
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        /// Conditionally launch create table for repository_instances
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        /// Define table repository_instance_config to be created
        $table = new xmldb_table('repository_instance_config');
        /// Adding fields to table repository_instance_config
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('instanceid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('name', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null);
        $table->add_field('value', XMLDB_TYPE_TEXT, 'big', null, null, null, null);
        /// Adding keys to table repository_instance_config
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        /// Conditionally launch create table for repository_instance_config
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2008082602);
    }
    if ($oldversion < 2008082700) {
        /// Add a new column to the question sessions table to record whether a
        /// question has been flagged.
        /// Define field flagged to be added to question_sessions
        $table = new xmldb_table('question_sessions');
        $field = new xmldb_field('flagged', XMLDB_TYPE_INTEGER, '2', null, XMLDB_NOTNULL, null, '0', 'manualcomment');
        /// Conditionally launch add field flagged
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2008082700);
    }
    if ($oldversion < 2008082900) {
        /// Changing precision of field parent_type on table mnet_rpc to (20)
        $table = new xmldb_table('mnet_rpc');
        $field = new xmldb_field('parent_type', XMLDB_TYPE_CHAR, '20', null, XMLDB_NOTNULL, null, null, 'xmlrpc_path');
        /// Launch change of precision for field parent_type
        $dbman->change_field_precision($table, $field);
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2008082900);
    }
    // MDL-16411 Move all plugintype_pluginname_version values from config to config_plugins.
    if ($oldversion < 2008091000) {
        foreach (get_object_vars($CFG) as $name => $value) {
            if (substr($name, strlen($name) - 8) !== '_version') {
                continue;
            }
            $pluginname = substr($name, 0, strlen($name) - 8);
            if (!strpos($pluginname, '_')) {
                // Skip things like backup_version that don't contain an extra _
                continue;
            }
            if ($pluginname == 'enrol_ldap_version') {
                // Special case - this is something different from a plugin version number.
                continue;
            }
            if (!preg_match('/^\\d{10}$/', $value)) {
                // Extra safety check, skip anything that does not look like a Moodle
                // version number (10 digits).
                continue;
            }
            set_config('version', $value, $pluginname);
            unset_config($name);
        }
        upgrade_main_savepoint(true, 2008091000);
    }
    if ($oldversion < 2008092300) {
        unset_config('editorspelling');
        unset_config('editordictionary');
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2008092300);
    }
    if ($oldversion < 2008101300) {
        if (!get_config(NULL, 'statsruntimedays')) {
            set_config('statsruntimedays', '31');
        }
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2008101300);
    }
    /// Drop the deprecated teacher, teachers, student and students columns from the course table.
    if ($oldversion < 2008111200) {
        $table = new xmldb_table('course');
        /// Conditionally launch drop field teacher
        $field = new xmldb_field('teacher');
        if ($dbman->field_exists($table, $field)) {
            $dbman->drop_field($table, $field);
        }
        /// Conditionally launch drop field teacher
        $field = new xmldb_field('teachers');
        if ($dbman->field_exists($table, $field)) {
            $dbman->drop_field($table, $field);
        }
        /// Conditionally launch drop field teacher
        $field = new xmldb_field('student');
        if ($dbman->field_exists($table, $field)) {
            $dbman->drop_field($table, $field);
        }
        /// Conditionally launch drop field teacher
        $field = new xmldb_field('students');
        if ($dbman->field_exists($table, $field)) {
            $dbman->drop_field($table, $field);
        }
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2008111200);
    }
    /// Add a unique index to the role.name column.
    if ($oldversion < 2008111800) {
        /// Define index name (unique) to be added to role
        $table = new xmldb_table('role');
        $index = new xmldb_index('name', XMLDB_INDEX_UNIQUE, array('name'));
        /// Conditionally launch add index name
        if (!$dbman->index_exists($table, $index)) {
            $dbman->add_index($table, $index);
        }
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2008111800);
    }
    /// Add a unique index to the role.shortname column.
    if ($oldversion < 2008111801) {
        /// Define index shortname (unique) to be added to role
        $table = new xmldb_table('role');
        $index = new xmldb_index('shortname', XMLDB_INDEX_UNIQUE, array('shortname'));
        /// Conditionally launch add index shortname
        if (!$dbman->index_exists($table, $index)) {
            $dbman->add_index($table, $index);
        }
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2008111801);
    }
    if ($oldversion < 2008120700) {
        /// Changing precision of field shortname on table course_request to (100)
        $table = new xmldb_table('course_request');
        $field = new xmldb_field('shortname', XMLDB_TYPE_CHAR, '100', null, XMLDB_NOTNULL, null, null, 'fullname');
        /// Before changing the field, drop dependent indexes
        /// Define index shortname (not unique) to be dropped form course_request
        $index = new xmldb_index('shortname', XMLDB_INDEX_NOTUNIQUE, array('shortname'));
        /// Conditionally launch drop index shortname
        if ($dbman->index_exists($table, $index)) {
            $dbman->drop_index($table, $index);
        }
        /// Launch change of precision for field shortname
        $dbman->change_field_precision($table, $field);
        /// After changing the field, recreate dependent indexes
        /// Define index shortname (not unique) to be added to course_request
        $index = new xmldb_index('shortname', XMLDB_INDEX_NOTUNIQUE, array('shortname'));
        /// Conditionally launch add index shortname
        if (!$dbman->index_exists($table, $index)) {
            $dbman->add_index($table, $index);
        }
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2008120700);
    }
    if ($oldversion < 2008120801) {
        /// Changing precision of field shortname on table mnet_enrol_course to (100)
        $table = new xmldb_table('mnet_enrol_course');
        $field = new xmldb_field('shortname', XMLDB_TYPE_CHAR, '100', null, XMLDB_NOTNULL, null, null, 'fullname');
        /// Launch change of precision for field shortname
        $dbman->change_field_precision($table, $field);
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2008120801);
    }
    if ($oldversion < 2008121701) {
        /// Define field availablefrom to be added to course_modules
        $table = new xmldb_table('course_modules');
        $field = new xmldb_field('availablefrom', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0', 'completionexpected');
        /// Conditionally launch add field availablefrom
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        /// Define field availableuntil to be added to course_modules
        $field = new xmldb_field('availableuntil', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0', 'availablefrom');
        /// Conditionally launch add field availableuntil
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        /// Define field showavailability to be added to course_modules
        $field = new xmldb_field('showavailability', XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0', 'availableuntil');
        /// Conditionally launch add field showavailability
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        /// Define table course_modules_availability to be created
        $table = new xmldb_table('course_modules_availability');
        /// Adding fields to table course_modules_availability
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('coursemoduleid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('sourcecmid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null);
        $table->add_field('requiredcompletion', XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, null, null, null);
        $table->add_field('gradeitemid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null);
        $table->add_field('grademin', XMLDB_TYPE_NUMBER, '10, 5', null, null, null, null);
        $table->add_field('grademax', XMLDB_TYPE_NUMBER, '10, 5', null, null, null, null);
        /// Adding keys to table course_modules_availability
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->add_key('coursemoduleid', XMLDB_KEY_FOREIGN, array('coursemoduleid'), 'course_modules', array('id'));
        $table->add_key('sourcecmid', XMLDB_KEY_FOREIGN, array('sourcecmid'), 'course_modules', array('id'));
        $table->add_key('gradeitemid', XMLDB_KEY_FOREIGN, array('gradeitemid'), 'grade_items', array('id'));
        /// Conditionally launch create table for course_modules_availability
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        /// Changes to modinfo mean we need to rebuild course cache
        require_once $CFG->dirroot . '/course/lib.php';
        rebuild_course_cache(0, true);
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2008121701);
    }
    if ($oldversion < 2009010500) {
        /// clean up config table a bit
        unset_config('session_error_counter');
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2009010500);
    }
    if ($oldversion < 2009010600) {
        /// Define field originalquestion to be dropped from question_states
        $table = new xmldb_table('question_states');
        $field = new xmldb_field('originalquestion');
        /// Conditionally launch drop field originalquestion
        if ($dbman->field_exists($table, $field)) {
            $dbman->drop_field($table, $field);
        }
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2009010600);
    }
    if ($oldversion < 2009010601) {
        /// Changing precision of field ip on table log to (45)
        $table = new xmldb_table('log');
        $field = new xmldb_field('ip', XMLDB_TYPE_CHAR, '45', null, XMLDB_NOTNULL, null, null, 'userid');
        /// Launch change of precision for field ip
        $dbman->change_field_precision($table, $field);
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2009010601);
    }
    if ($oldversion < 2009010602) {
        /// Changing precision of field lastip on table user to (45)
        $table = new xmldb_table('user');
        $field = new xmldb_field('lastip', XMLDB_TYPE_CHAR, '45', null, XMLDB_NOTNULL, null, null, 'currentlogin');
        /// Launch change of precision for field lastip
        $dbman->change_field_precision($table, $field);
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2009010602);
    }
    if ($oldversion < 2009010603) {
        /// Changing precision of field ip_address on table mnet_host to (45)
        $table = new xmldb_table('mnet_host');
        $field = new xmldb_field('ip_address', XMLDB_TYPE_CHAR, '45', null, XMLDB_NOTNULL, null, null, 'wwwroot');
        /// Launch change of precision for field ip_address
        $dbman->change_field_precision($table, $field);
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2009010603);
    }
    if ($oldversion < 2009010604) {
        /// Changing precision of field ip on table mnet_log to (45)
        $table = new xmldb_table('mnet_log');
        $field = new xmldb_field('ip', XMLDB_TYPE_CHAR, '45', null, XMLDB_NOTNULL, null, null, 'userid');
        /// Launch change of precision for field ip
        $dbman->change_field_precision($table, $field);
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2009010604);
    }
    if ($oldversion < 2009011000) {
        /// Changing nullability of field configdata on table block_instance to null
        $table = new xmldb_table('block_instance');
        $field = new xmldb_field('configdata');
        $field->set_attributes(XMLDB_TYPE_TEXT, 'small', null, null, null, null, 'visible');
        /// Launch change of nullability for field configdata
        $dbman->change_field_notnull($table, $field);
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2009011000);
    }
    if ($oldversion < 2009011100) {
        /// Remove unused settings
        unset_config('zip');
        unset_config('unzip');
        unset_config('adminblocks_initialised');
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2009011100);
    }
    if ($oldversion < 2009011101) {
        /// Migrate backup settings to core plugin config table
        $configs = $DB->get_records('backup_config');
        foreach ($configs as $config) {
            set_config($config->name, $config->value, 'backup');
        }
        /// Define table to be dropped
        $table = new xmldb_table('backup_config');
        /// Launch drop table for old backup config
        $dbman->drop_table($table);
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2009011101);
    }
    if ($oldversion < 2009011303) {
        /// Define table config_log to be created
        $table = new xmldb_table('config_log');
        /// Adding fields to table config_log
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('userid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('timemodified', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('plugin', XMLDB_TYPE_CHAR, '100', null, null, null, null);
        $table->add_field('name', XMLDB_TYPE_CHAR, '100', null, XMLDB_NOTNULL, null, null);
        $table->add_field('value', XMLDB_TYPE_TEXT, 'small', null, null, null, null);
        $table->add_field('oldvalue', XMLDB_TYPE_TEXT, 'small', null, null, null, null);
        /// Adding keys to table config_log
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->add_key('userid', XMLDB_KEY_FOREIGN, array('userid'), 'user', array('id'));
        /// Adding indexes to table config_log
        $table->add_index('timemodified', XMLDB_INDEX_NOTUNIQUE, array('timemodified'));
        /// Launch create table for config_log
        $dbman->create_table($table);
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2009011303);
    }
    if ($oldversion < 2009011900) {
        /// Define table sessions2 to be dropped
        $table = new xmldb_table('sessions2');
        /// Conditionally launch drop table for sessions
        if ($dbman->table_exists($table)) {
            $dbman->drop_table($table);
        }
        /// Define table sessions to be dropped
        $table = new xmldb_table('sessions');
        /// Conditionally launch drop table for sessions
        if ($dbman->table_exists($table)) {
            $dbman->drop_table($table);
        }
        /// Define table sessions to be created
        $table = new xmldb_table('sessions');
        /// Adding fields to table sessions
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('state', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0');
        $table->add_field('sid', XMLDB_TYPE_CHAR, '128', null, XMLDB_NOTNULL, null, null);
        $table->add_field('userid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('sessdata', XMLDB_TYPE_TEXT, 'big', null, null, null, null);
        $table->add_field('timecreated', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('timemodified', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('firstip', XMLDB_TYPE_CHAR, '45', null, null, null, null);
        $table->add_field('lastip', XMLDB_TYPE_CHAR, '45', null, null, null, null);
        /// Adding keys to table sessions
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->add_key('userid', XMLDB_KEY_FOREIGN, array('userid'), 'user', array('id'));
        /// Adding indexes to table sessions
        $table->add_index('state', XMLDB_INDEX_NOTUNIQUE, array('state'));
        $table->add_index('sid', XMLDB_INDEX_UNIQUE, array('sid'));
        $table->add_index('timecreated', XMLDB_INDEX_NOTUNIQUE, array('timecreated'));
        $table->add_index('timemodified', XMLDB_INDEX_NOTUNIQUE, array('timemodified'));
        /// Launch create table for sessions
        $dbman->create_table($table);
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2009011900);
    }
    if ($oldversion < 2009021800) {
        // Converting format of grade conditions, if any exist, to percentages.
        $DB->execute("\nUPDATE {course_modules_availability} SET grademin=(\n    SELECT 100.0*({course_modules_availability}.grademin-gi.grademin)\n        /(gi.grademax-gi.grademin)\n    FROM {grade_items} gi\n    WHERE gi.id={course_modules_availability}.gradeitemid)\nWHERE gradeitemid IS NOT NULL AND grademin IS NOT NULL");
        $DB->execute("\nUPDATE {course_modules_availability} SET grademax=(\n    SELECT 100.0*({course_modules_availability}.grademax-gi.grademin)\n        /(gi.grademax-gi.grademin)\n    FROM {grade_items} gi\n    WHERE gi.id={course_modules_availability}.gradeitemid)\nWHERE gradeitemid IS NOT NULL AND grademax IS NOT NULL");
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2009021800);
    }
    if ($oldversion < 2009021801) {
        /// Define field backuptype to be added to backup_log
        $table = new xmldb_table('backup_log');
        $field = new xmldb_field('backuptype', XMLDB_TYPE_CHAR, '50', null, XMLDB_NOTNULL, null, null, 'info');
        /// Conditionally Launch add field backuptype and set all old records as 'scheduledbackup' records.
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
            $DB->execute("UPDATE {backup_log} SET backuptype='scheduledbackup'");
        }
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2009021801);
    }
    /// Add default sort order for question types.
    if ($oldversion < 2009030300) {
        set_config('multichoice_sortorder', 1, 'question');
        set_config('truefalse_sortorder', 2, 'question');
        set_config('shortanswer_sortorder', 3, 'question');
        set_config('numerical_sortorder', 4, 'question');
        set_config('calculated_sortorder', 5, 'question');
        set_config('essay_sortorder', 6, 'question');
        set_config('match_sortorder', 7, 'question');
        set_config('randomsamatch_sortorder', 8, 'question');
        set_config('multianswer_sortorder', 9, 'question');
        set_config('description_sortorder', 10, 'question');
        set_config('random_sortorder', 11, 'question');
        set_config('missingtype_sortorder', 12, 'question');
        upgrade_main_savepoint(true, 2009030300);
    }
    /// MDL-18132 replace the use a new Role allow switch settings page, instead of
    /// $CFG->allowuserswitchrolestheycantassign
    if ($oldversion < 2009032000) {
        /// First create the new table.
        $table = new xmldb_table('role_allow_switch');
        /// Adding fields to table role_allow_switch
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('roleid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('allowswitch', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        /// Adding keys to table role_allow_switch
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->add_key('roleid', XMLDB_KEY_FOREIGN, array('roleid'), 'role', array('id'));
        $table->add_key('allowswitch', XMLDB_KEY_FOREIGN, array('allowswitch'), 'role', array('id'));
        /// Adding indexes to table role_allow_switch
        $table->add_index('roleid-allowoverride', XMLDB_INDEX_UNIQUE, array('roleid', 'allowswitch'));
        /// Conditionally launch create table for role_allow_switch
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2009032000);
    }
    if ($oldversion < 2009032001) {
        /// Copy from role_allow_assign into the new table.
        $DB->execute('INSERT INTO {role_allow_switch} (roleid, allowswitch)
                SELECT roleid, allowassign FROM {role_allow_assign}');
        /// Unset the config variable used in 1.9.
        unset_config('allowuserswitchrolestheycantassign');
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2009032001);
    }
    if ($oldversion < 2009040300) {
        /// Define table filter_active to be created
        $table = new xmldb_table('filter_active');
        /// Adding fields to table filter_active
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('filter', XMLDB_TYPE_CHAR, '32', null, XMLDB_NOTNULL, null, null);
        $table->add_field('contextid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('active', XMLDB_TYPE_INTEGER, '4', null, XMLDB_NOTNULL, null, null);
        $table->add_field('sortorder', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0');
        /// Adding keys to table filter_active
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->add_key('contextid', XMLDB_KEY_FOREIGN, array('contextid'), 'context', array('id'));
        /// Adding indexes to table filter_active
        $table->add_index('contextid-filter', XMLDB_INDEX_UNIQUE, array('contextid', 'filter'));
        /// Conditionally launch create table for filter_active
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2009040300);
    }
    if ($oldversion < 2009040301) {
        /// Define table filter_config to be created
        $table = new xmldb_table('filter_config');
        /// Adding fields to table filter_config
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('filter', XMLDB_TYPE_CHAR, '32', null, XMLDB_NOTNULL, null, null);
        $table->add_field('contextid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('name', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null);
        $table->add_field('value', XMLDB_TYPE_TEXT, 'small', null, null, null, null);
        /// Adding keys to table filter_config
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->add_key('contextid', XMLDB_KEY_FOREIGN, array('contextid'), 'context', array('id'));
        /// Adding indexes to table filter_config
        $table->add_index('contextid-filter-name', XMLDB_INDEX_UNIQUE, array('contextid', 'filter', 'name'));
        /// Conditionally launch create table for filter_config
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2009040301);
    }
    if ($oldversion < 2009040302) {
        /// Transfer current settings from $CFG->textfilters
        $disabledfilters = filter_get_all_installed();
        if (empty($CFG->textfilters)) {
            $activefilters = array();
        } else {
            $activefilters = explode(',', $CFG->textfilters);
        }
        $syscontext = get_context_instance(CONTEXT_SYSTEM);
        $sortorder = 1;
        foreach ($activefilters as $filter) {
            filter_set_global_state($filter, TEXTFILTER_ON, $sortorder);
            $sortorder += 1;
            unset($disabledfilters[$filter]);
        }
        foreach ($disabledfilters as $filter => $notused) {
            filter_set_global_state($filter, TEXTFILTER_DISABLED, $sortorder);
            $sortorder += 1;
        }
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2009040302);
    }
    if ($oldversion < 2009040600) {
        /// Ensure that $CFG->stringfilters is set.
        if (empty($CFG->stringfilters)) {
            if (!empty($CFG->filterall)) {
                set_config('stringfilters', $CFG->textfilters);
            } else {
                set_config('stringfilters', '');
            }
        }
        set_config('filterall', !empty($CFG->stringfilters));
        unset_config('textfilters');
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2009040600);
    }
    if ($oldversion < 2009041700) {
        /// To ensure the UI remains consistent with no behaviour change, any
        /// 'until' date in an activity condition should have 1 second subtracted
        /// (to go from 0:00 on the following day to 23:59 on the previous one).
        $DB->execute('UPDATE {course_modules} SET availableuntil = availableuntil - 1 WHERE availableuntil <> 0');
        require_once $CFG->dirroot . '/course/lib.php';
        rebuild_course_cache(0, true);
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2009041700);
    }
    if ($oldversion < 2009042600) {
        /// 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 = $DB->get_records_sql('SELECT DISTINCT u.id
                                                    FROM {user} u
                                                    JOIN {message} m ON m.useridfrom = u.id
                                                   WHERE u.deleted = ?', array(1))) {
            foreach ($deletedusers as $deleteduser) {
                message_move_userfrom_unread2read($deleteduser->id);
                // move messages
            }
        }
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2009042600);
    }
    /// Dropping all enums/check contraints from core. MDL-18577
    if ($oldversion < 2009042700) {
        /// Changing list of values (enum) of field stattype on table stats_daily to none
        $table = new xmldb_table('stats_daily');
        $field = new xmldb_field('stattype', XMLDB_TYPE_CHAR, '20', null, XMLDB_NOTNULL, null, 'activity', 'roleid');
        /// Launch change of list of values for field stattype
        $dbman->drop_enum_from_field($table, $field);
        /// Changing list of values (enum) of field stattype on table stats_weekly to none
        $table = new xmldb_table('stats_weekly');
        $field = new xmldb_field('stattype', XMLDB_TYPE_CHAR, '20', null, XMLDB_NOTNULL, null, 'activity', 'roleid');
        /// Launch change of list of values for field stattype
        $dbman->drop_enum_from_field($table, $field);
        /// Changing list of values (enum) of field stattype on table stats_monthly to none
        $table = new xmldb_table('stats_monthly');
        $field = new xmldb_field('stattype', XMLDB_TYPE_CHAR, '20', null, XMLDB_NOTNULL, null, 'activity', 'roleid');
        /// Launch change of list of values for field stattype
        $dbman->drop_enum_from_field($table, $field);
        /// Changing list of values (enum) of field publishstate on table post to none
        $table = new xmldb_table('post');
        $field = new xmldb_field('publishstate', XMLDB_TYPE_CHAR, '20', null, XMLDB_NOTNULL, null, 'draft', 'attachment');
        /// Launch change of list of values for field publishstate
        $dbman->drop_enum_from_field($table, $field);
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2009042700);
    }
    if ($oldversion < 2009043000) {
        unset_config('grade_report_showgroups');
        upgrade_main_savepoint(true, 2009043000);
    }
    if ($oldversion < 2009050600) {
        /// Site front page blocks need to be moved due to page name change.
        $DB->set_field('block_instance', 'pagetype', 'site-index', array('pagetype' => 'course-view', 'pageid' => SITEID));
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2009050600);
    }
    if ($oldversion < 2009050601) {
        /// Define table block_instance to be renamed to block_instances
        $table = new xmldb_table('block_instance');
        /// Launch rename table for block_instance
        $dbman->rename_table($table, 'block_instances');
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2009050601);
    }
    if ($oldversion < 2009050602) {
        /// Define table block_instance to be renamed to block_instance_old
        $table = new xmldb_table('block_pinned');
        /// Launch rename table for block_instance
        $dbman->rename_table($table, 'block_pinned_old');
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2009050602);
    }
    if ($oldversion < 2009050603) {
        /// Define table block_instance_old to be created
        $table = new xmldb_table('block_instance_old');
        /// Adding fields to table block_instance_old
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('oldid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('blockid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0');
        $table->add_field('pageid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0');
        $table->add_field('pagetype', XMLDB_TYPE_CHAR, '20', null, XMLDB_NOTNULL, null, null);
        $table->add_field('position', XMLDB_TYPE_CHAR, '10', null, XMLDB_NOTNULL, null, null);
        $table->add_field('weight', XMLDB_TYPE_INTEGER, '3', null, XMLDB_NOTNULL, null, '0');
        $table->add_field('visible', XMLDB_TYPE_INTEGER, '1', null, XMLDB_NOTNULL, null, '0');
        $table->add_field('configdata', XMLDB_TYPE_TEXT, 'small', null, null, null, null);
        /// Adding keys to table block_instance_old
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->add_key('blockid', XMLDB_KEY_FOREIGN, array('blockid'), 'block', array('id'));
        /// Adding indexes to table block_instance_old
        $table->add_index('pageid', XMLDB_INDEX_NOTUNIQUE, array('pageid'));
        $table->add_index('pagetype', XMLDB_INDEX_NOTUNIQUE, array('pagetype'));
        /// Conditionally launch create table for block_instance_old
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2009050603);
    }
    if ($oldversion < 2009050604) {
        /// Copy current blocks data from block_instances to block_instance_old
        $DB->execute('INSERT INTO {block_instance_old} (oldid, blockid, pageid, pagetype, position, weight, visible, configdata)
            SELECT id, blockid, pageid, pagetype, position, weight, visible, configdata FROM {block_instances} ORDER BY id');
        upgrade_main_savepoint(true, 2009050604);
    }
    if ($oldversion < 2009050605) {
        /// Define field multiple to be dropped from block
        $table = new xmldb_table('block');
        $field = new xmldb_field('multiple');
        /// Conditionally launch drop field multiple
        if ($dbman->field_exists($table, $field)) {
            $dbman->drop_field($table, $field);
        }
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2009050605);
    }
    if ($oldversion < 2009050606) {
        $table = new xmldb_table('block_instances');
        /// Rename field weight on table block_instances to defaultweight
        $field = new xmldb_field('weight', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL, null, null, 'position');
        $dbman->rename_field($table, $field, 'defaultweight');
        /// Rename field position on table block_instances to defaultregion
        $field = new xmldb_field('position', XMLDB_TYPE_CHAR, '10', null, XMLDB_NOTNULL, null, null, 'pagetype');
        $dbman->rename_field($table, $field, 'defaultregion');
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2009050606);
    }
    if ($oldversion < 2009050607) {
        /// Changing precision of field defaultregion on table block_instances to (16)
        $table = new xmldb_table('block_instances');
        $field = new xmldb_field('defaultregion', XMLDB_TYPE_CHAR, '16', null, XMLDB_NOTNULL, null, null, 'pagetype');
        /// Launch change of precision for field defaultregion
        $dbman->change_field_precision($table, $field);
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2009050607);
    }
    if ($oldversion < 2009050608) {
        /// Change regions to the new notation
        $DB->set_field('block_instances', 'defaultregion', 'side-pre', array('defaultregion' => 'l'));
        $DB->set_field('block_instances', 'defaultregion', 'side-post', array('defaultregion' => 'r'));
        $DB->set_field('block_instances', 'defaultregion', 'course-view-top', array('defaultregion' => 'c'));
        // This third one is a custom value from contrib/patches/center_blocks_position_patch and the
        // flex page course format. Hopefully this new value is an adequate alternative.
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2009050608);
    }
    if ($oldversion < 2009050609) {
        /// Define key blockname (unique) to be added to block
        $table = new xmldb_table('block');
        $key = new xmldb_key('blockname', XMLDB_KEY_UNIQUE, array('name'));
        /// Launch add key blockname
        $dbman->add_key($table, $key);
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2009050609);
    }
    if ($oldversion < 2009050610) {
        $table = new xmldb_table('block_instances');
        /// Define field blockname to be added to block_instances
        $field = new xmldb_field('blockname', XMLDB_TYPE_CHAR, '40', null, null, null, null, 'blockid');
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        /// Define field contextid to be added to block_instances
        $field = new xmldb_field('contextid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, 'blockname');
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        /// Define field showinsubcontexts to be added to block_instances
        $field = new xmldb_field('showinsubcontexts', XMLDB_TYPE_INTEGER, '4', null, null, null, null, 'contextid');
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        /// Define field subpagepattern to be added to block_instances
        $field = new xmldb_field('subpagepattern', XMLDB_TYPE_CHAR, '16', null, null, null, null, 'pagetype');
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2009050610);
    }
    if ($oldversion < 2009050611) {
        $table = new xmldb_table('block_instances');
        /// Fill in blockname from blockid
        $DB->execute("UPDATE {block_instances} SET blockname = (SELECT name FROM {block} WHERE id = blockid)");
        /// Set showinsubcontexts = 0 for all rows.
        $DB->execute("UPDATE {block_instances} SET showinsubcontexts = 0");
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2009050611);
    }
    if ($oldversion < 2009050612) {
        /// Rename field pagetype on table block_instances to pagetypepattern
        $table = new xmldb_table('block_instances');
        $field = new xmldb_field('pagetype', XMLDB_TYPE_CHAR, '20', null, XMLDB_NOTNULL, null, null, 'pageid');
        /// Launch rename field pagetype
        $dbman->rename_field($table, $field, 'pagetypepattern');
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2009050612);
    }
    if ($oldversion < 2009050613) {
        /// fill in contextid and subpage, and update pagetypepattern from pagetype and pageid
        /// site-index
        $frontpagecontext = get_context_instance(CONTEXT_COURSE, SITEID);
        $DB->execute("UPDATE {block_instances} SET contextid = " . $frontpagecontext->id . ",\n                                                   pagetypepattern = 'site-index',\n                                                   subpagepattern = NULL\n                      WHERE pagetypepattern = 'site-index'");
        /// course-view
        $DB->execute("UPDATE {block_instances} SET\n                        contextid = (\n                            SELECT {context}.id\n                            FROM {context}\n                            JOIN {course} ON instanceid = {course}.id AND contextlevel = " . CONTEXT_COURSE . "\n                            WHERE {course}.id = pageid\n                        ),\n                       pagetypepattern = 'course-view-*',\n                       subpagepattern = NULL\n                      WHERE pagetypepattern = 'course-view'");
        /// admin
        $syscontext = get_context_instance(CONTEXT_SYSTEM);
        $DB->execute("UPDATE {block_instances} SET\n                        contextid = " . $syscontext->id . ",\n                        pagetypepattern = 'admin-*',\n                        subpagepattern = NULL\n                      WHERE pagetypepattern = 'admin'");
        /// my-index
        $DB->execute("UPDATE {block_instances} SET\n                        contextid = (\n                            SELECT {context}.id\n                            FROM {context}\n                            JOIN {user} ON instanceid = {user}.id AND contextlevel = " . CONTEXT_USER . "\n                            WHERE {user}.id = pageid\n                        ),\n                        pagetypepattern = 'my-index',\n                        subpagepattern = NULL\n                      WHERE pagetypepattern = 'my-index'");
        /// tag-index
        $DB->execute("UPDATE {block_instances} SET\n                        contextid = " . $syscontext->id . ",\n                        pagetypepattern = 'tag-index',\n                        subpagepattern = pageid\n                      WHERE pagetypepattern = 'tag-index'");
        /// blog-view
        $DB->execute("UPDATE {block_instances} SET\n                        contextid = (\n                            SELECT {context}.id\n                            FROM {context}\n                            JOIN {user} ON instanceid = {user}.id AND contextlevel = " . CONTEXT_USER . "\n                            WHERE {user}.id = pageid\n                        ),\n                        pagetypepattern = 'blog-index',\n                        subpagepattern = NULL\n                      WHERE pagetypepattern = 'blog-view'");
        /// mod-xxx-view
        $moduleswithblocks = array('chat', 'data', 'lesson', 'quiz', 'dimdim', 'game', 'wiki', 'oublog');
        foreach ($moduleswithblocks as $modname) {
            if (!$dbman->table_exists($modname)) {
                continue;
            }
            $DB->execute("UPDATE {block_instances} SET\n                            contextid = (\n                                SELECT {context}.id\n                                FROM {context}\n                                JOIN {course_modules} ON instanceid = {course_modules}.id AND contextlevel = " . CONTEXT_MODULE . "\n                                JOIN {modules} ON {modules}.id = {course_modules}.module AND {modules}.name = '{$modname}'\n                                JOIN {{$modname}} ON {course_modules}.instance = {{$modname}}.id\n                                WHERE {{$modname}}.id = pageid\n                            ),\n                            pagetypepattern = 'blog-index',\n                            subpagepattern = NULL\n                          WHERE pagetypepattern = 'blog-view'");
        }
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2009050613);
    }
    if ($oldversion < 2009050614) {
        /// fill in any missing contextids with a dummy value, so we can add the not-null constraint.
        $DB->execute("UPDATE {block_instances} SET contextid = 0 WHERE contextid IS NULL");
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2009050614);
    }
    if ($oldversion < 2009050615) {
        $table = new xmldb_table('block_instances');
        /// Arrived here, any block_instances record without blockname is one
        /// orphan block coming from 1.9. Just delete them. MDL-22503
        $DB->delete_records_select('block_instances', 'blockname IS NULL');
        /// Changing nullability of field blockname on table block_instances to not null
        $field = new xmldb_field('blockname', XMLDB_TYPE_CHAR, '40', null, XMLDB_NOTNULL, null, null, 'id');
        $dbman->change_field_notnull($table, $field);
        /// Changing nullability of field contextid on table block_instances to not null
        $field = new xmldb_field('contextid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, 'blockname');
        $dbman->change_field_notnull($table, $field);
        /// Changing nullability of field showinsubcontexts on table block_instances to not null
        $field = new xmldb_field('showinsubcontexts', XMLDB_TYPE_INTEGER, '4', null, XMLDB_NOTNULL, null, null, 'contextid');
        $dbman->change_field_notnull($table, $field);
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2009050615);
    }
    if ($oldversion < 2009050616) {
        /// Add exiting sticky blocks.
        $blocks = $DB->get_records('block');
        $syscontext = get_context_instance(CONTEXT_SYSTEM);
        $newregions = array('l' => 'side-pre', 'r' => 'side-post', 'c' => 'course-view-top');
        $stickyblocks = $DB->get_recordset('block_pinned_old');
        foreach ($stickyblocks as $stickyblock) {
            // Only if the block exists (avoid orphaned sticky blocks)
            if (!isset($blocks[$stickyblock->blockid]) || empty($blocks[$stickyblock->blockid]->name)) {
                continue;
            }
            $newblock = new stdClass();
            $newblock->blockname = $blocks[$stickyblock->blockid]->name;
            $newblock->contextid = $syscontext->id;
            $newblock->showinsubcontexts = 1;
            switch ($stickyblock->pagetype) {
                case 'course-view':
                    $newblock->pagetypepattern = 'course-view-*';
                    break;
                default:
                    $newblock->pagetypepattern = $stickyblock->pagetype;
            }
            $newblock->defaultregion = $newregions[$stickyblock->position];
            $newblock->defaultweight = $stickyblock->weight;
            $newblock->configdata = $stickyblock->configdata;
            $newblock->visible = 1;
            $DB->insert_record('block_instances', $newblock);
        }
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2009050616);
    }
    if ($oldversion < 2009050617) {
        /// Define table block_positions to be created
        $table = new xmldb_table('block_positions');
        /// Adding fields to table block_positions
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('blockinstanceid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('contextid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('pagetype', XMLDB_TYPE_CHAR, '64', null, XMLDB_NOTNULL, null, null);
        $table->add_field('subpage', XMLDB_TYPE_CHAR, '16', null, XMLDB_NOTNULL, null, null);
        $table->add_field('visible', XMLDB_TYPE_INTEGER, '4', null, XMLDB_NOTNULL, null, null);
        $table->add_field('region', XMLDB_TYPE_CHAR, '16', null, XMLDB_NOTNULL, null, null);
        $table->add_field('weight', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null);
        /// Adding keys to table block_positions
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->add_key('blockinstanceid', XMLDB_KEY_FOREIGN, array('blockinstanceid'), 'block_instances', array('id'));
        $table->add_key('contextid', XMLDB_KEY_FOREIGN, array('contextid'), 'context', array('id'));
        /// Adding indexes to table block_positions
        $table->add_index('blockinstanceid-contextid-pagetype-subpage', XMLDB_INDEX_UNIQUE, array('blockinstanceid', 'contextid', 'pagetype', 'subpage'));
        /// Conditionally launch create table for block_positions
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2009050617);
    }
    if ($oldversion < 2009050618) {
        /// And block instances with visible = 0, copy that information to block_positions
        $DB->execute("INSERT INTO {block_positions} (blockinstanceid, contextid, pagetype, subpage, visible, region, weight)\n                SELECT bi.id, bi.contextid,\n                       CASE WHEN bi.pagetypepattern = 'course-view-*'\n                           THEN (SELECT " . $DB->sql_concat("'course-view-'", 'c.format') . "\n                                   FROM {course} c\n                                   JOIN {context} ctx ON c.id = ctx.instanceid\n                                  WHERE ctx.id = bi.contextid)\n                           ELSE bi.pagetypepattern END,\n                       CASE WHEN bi.subpagepattern IS NULL\n                           THEN '" . $DB->sql_empty() . "'\n                           ELSE bi.subpagepattern END,\n                       0, bi.defaultregion, bi.defaultweight\n                  FROM {block_instances} bi\n                 WHERE bi.visible = 0 AND bi.pagetypepattern <> 'admin-*' AND bi.pagetypepattern IS NOT NULL");
        // note: MDL-25031 all block instances should have a pagetype pattern, NULL is not allowed,
        //       if we manage to find out how NULLs get there we should fix them before this step
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2009050618);
    }
    if ($oldversion < 2009050619) {
        $table = new xmldb_table('block_instances');
        /// Define field blockid to be dropped from block_instances
        $field = new xmldb_field('blockid');
        if ($dbman->field_exists($table, $field)) {
            /// Before dropping the field, drop dependent indexes
            $index = new xmldb_index('blockid', XMLDB_INDEX_NOTUNIQUE, array('blockid'));
            if ($dbman->index_exists($table, $index)) {
                /// Launch drop index blockid
                $dbman->drop_index($table, $index);
            }
            $dbman->drop_field($table, $field);
        }
        /// Define field pageid to be dropped from block_instances
        $field = new xmldb_field('pageid');
        if ($dbman->field_exists($table, $field)) {
            /// Before dropping the field, drop dependent indexes
            $index = new xmldb_index('pageid', XMLDB_INDEX_NOTUNIQUE, array('pageid'));
            if ($dbman->index_exists($table, $index)) {
                /// Launch drop index pageid
                $dbman->drop_index($table, $index);
            }
            $dbman->drop_field($table, $field);
        }
        /// Define field visible to be dropped from block_instances
        $field = new xmldb_field('visible');
        if ($dbman->field_exists($table, $field)) {
            $dbman->drop_field($table, $field);
        }
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2009050619);
    }
    if ($oldversion < 2009051200) {
        /// Let's check the status of mandatory mnet_host records, fixing them
        /// and moving "orphan" users to default localhost record. MDL-16879
        echo $OUTPUT->notification('Fixing mnet records, this may take a while...', 'notifysuccess');
        upgrade_fix_incorrect_mnethostids();
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2009051200);
    }
    if ($oldversion < 2009051700) {
        /// migrate editor settings
        if (empty($CFG->htmleditor)) {
            set_config('texteditors', 'textarea');
        } else {
            set_config('texteditors', 'tinymce,textarea');
        }
        unset_config('htmleditor');
        unset_config('defaulthtmleditor');
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2009051700);
    }
    /// Repeat 2009050607 upgrade step, which Petr commented out because of XMLDB
    /// stupidity, so lots of people will have missed.
    if ($oldversion < 2009061600) {
        /// Changing precision of field defaultregion on table block_instances to (16)
        $table = new xmldb_table('block_instances');
        $field = new xmldb_field('defaultregion', XMLDB_TYPE_CHAR, '16', null, XMLDB_NOTNULL, null, null, 'configdata');
        /// Launch change of precision for field defaultregion
        $dbman->change_field_precision($table, $field);
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2009061600);
    }
    if ($oldversion < 2009061702) {
        // standardizing plugin names
        if ($configs = $DB->get_records_select('config_plugins', "plugin LIKE 'quizreport_%'")) {
            foreach ($configs as $config) {
                unset_config($config->name, $config->plugin);
                /// unset old config
                $config->plugin = str_replace('quizreport_', 'quiz_', $config->plugin);
                set_config($config->name, $config->value, $config->plugin);
                /// set new config
            }
        }
        unset($configs);
        upgrade_main_savepoint(true, 2009061702);
    }
    if ($oldversion < 2009061703) {
        // standardizing plugin names
        if ($configs = $DB->get_records_select('config_plugins', "plugin LIKE 'assignment_type_%'")) {
            foreach ($configs as $config) {
                unset_config($config->name, $config->plugin);
                /// unset old config
                $config->plugin = str_replace('assignment_type_', 'assignment_', $config->plugin);
                set_config($config->name, $config->value, $config->plugin);
                /// set new config
            }
        }
        unset($configs);
        upgrade_main_savepoint(true, 2009061703);
    }
    if ($oldversion < 2009061704) {
        // change component string in capability records to new "_" format
        if ($caps = $DB->get_records('capabilities')) {
            foreach ($caps as $cap) {
                $cap->component = str_replace('/', '_', $cap->component);
                $DB->update_record('capabilities', $cap);
            }
        }
        unset($caps);
        upgrade_main_savepoint(true, 2009061704);
    }
    if ($oldversion < 2009063000) {
        // upgrade format of _with_advanced settings - quiz only
        // note: this can be removed later, not needed for upgrades from 1.9.x
        if ($quiz = get_config('quiz')) {
            foreach ($quiz as $name => $value) {
                if (strpos($name, 'fix_') !== 0) {
                    continue;
                }
                $newname = substr($name, 4) . '_adv';
                set_config($newname, $value, 'quiz');
                unset_config($name, 'quiz');
            }
        }
        upgrade_main_savepoint(true, 2009063000);
    }
    if ($oldversion < 2009071000) {
        /// Rename field contextid on table block_instances to parentcontextid
        $table = new xmldb_table('block_instances');
        $field = new xmldb_field('contextid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, 'blockname');
        /// Launch rename field parentcontextid
        $dbman->rename_field($table, $field, 'parentcontextid');
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2009071000);
    }
    if ($oldversion < 2009071600) {
        /// Define field summaryformat to be added to post
        $table = new xmldb_table('post');
        $field = new xmldb_field('summaryformat', XMLDB_TYPE_INTEGER, '2', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0', 'format');
        /// Conditionally launch add field summaryformat
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2009071600);
    }
    if ($oldversion < 2009072400) {
        /// Define table comments to be created
        $table = new xmldb_table('comments');
        /// Adding fields to table comments
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('contextid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('commentarea', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null);
        $table->add_field('itemid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('content', XMLDB_TYPE_TEXT, 'small', null, XMLDB_NOTNULL, null, null);
        $table->add_field('format', XMLDB_TYPE_INTEGER, '2', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0');
        $table->add_field('userid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('timecreated', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        /// Adding keys to table comments
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        /// Conditionally launch create table for comments
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2009072400);
    }
    /**
     * This upgrade is to set up the new navigation blocks that have been developed
     * as part of Moodle 2.0
     * Now I [Sam Hemelryk] hit a conundrum while exploring how to go about this
     * as not only do we want to install the new blocks but we also want to set up
     * default instances of them, and at the same time remove instances of the blocks
     * that were/will-be outmoded by the two new navigation blocks.
     * After talking it through with Tim Hunt {@link http://moodle.org/mod/cvsadmin/view.php?conversationid=3112}
     * we decided that the best way to go about this was to put the bulk of the
     * upgrade operation into core upgrade `here` but to let the plugins block
     * still install the blocks.
     * This leaves one hairy end in that we will create block_instances within the
     * DB before the blocks themselves are created within the DB
     */
    if ($oldversion < 2009082800) {
        echo $OUTPUT->notification(get_string('navigationupgrade', 'admin'));
        // Get the system context so we can set the block instances to it
        $syscontext = get_context_instance(CONTEXT_SYSTEM);
        // An array to contain the new block instances we will create
        $newblockinstances = array('globalnavigation' => new stdClass(), 'settingsnavigation' => new stdClass());
        // The new global navigation block instance as a stdClass
        $newblockinstances['globalnavigation']->blockname = 'global_navigation_tree';
        $newblockinstances['globalnavigation']->parentcontextid = $syscontext->id;
        // System context
        $newblockinstances['globalnavigation']->showinsubcontexts = true;
        // Show absolutely everywhere
        $newblockinstances['globalnavigation']->pagetypepattern = '*';
        // Thats right everywhere
        $newblockinstances['globalnavigation']->subpagetypepattern = null;
        $newblockinstances['globalnavigation']->defaultregion = BLOCK_POS_LEFT;
        $newblockinstances['globalnavigation']->defaultweight = -10;
        // Try make this first
        $newblockinstances['globalnavigation']->configdata = '';
        // The new settings navigation block instance as a stdClass
        $newblockinstances['settingsnavigation']->blockname = 'settings_navigation_tree';
        $newblockinstances['settingsnavigation']->parentcontextid = $syscontext->id;
        $newblockinstances['settingsnavigation']->showinsubcontexts = true;
        $newblockinstances['settingsnavigation']->pagetypepattern = '*';
        $newblockinstances['settingsnavigation']->subpagetypepattern = null;
        $newblockinstances['settingsnavigation']->defaultregion = BLOCK_POS_LEFT;
        $newblockinstances['settingsnavigation']->defaultweight = -9;
        // Try make this second
        $newblockinstances['settingsnavigation']->configdata = '';
        // Blocks that are outmoded and for whom the bells will toll... by which I
        // mean we will delete all instances of
        $outmodedblocks = array('participants', 'admin_tree', 'activity_modules', 'admin', 'course_list');
        $outmodedblocksstring = '\'' . join('\',\'', $outmodedblocks) . '\'';
        unset($outmodedblocks);
        // Retrieve the block instance id's and parent contexts, so we can join them an GREATLY
        // cut down the number of delete queries we will need to run
        $allblockinstances = $DB->get_recordset_select('block_instances', 'blockname IN (' . $outmodedblocksstring . ')', array(), '', 'id, parentcontextid');
        $contextids = array();
        $instanceids = array();
        // Iterate through all block instances
        foreach ($allblockinstances as $blockinstance) {
            if (!in_array($blockinstance->parentcontextid, $contextids)) {
                $contextids[] = $blockinstance->parentcontextid;
                // If we have over 1000 contexts clean them up and reset the array
                // this ensures we don't hit any nasty memory limits or such
                if (count($contextids) > 1000) {
                    upgrade_cleanup_unwanted_block_contexts($contextids);
                    $contextids = array();
                }
            }
            if (!in_array($blockinstance->id, $instanceids)) {
                $instanceids[] = $blockinstance->id;
                // If we have more than 1000 block instances now remove all block positions
                // and empty the array
                if (count($contextids) > 1000) {
                    $instanceidstring = join(',', $instanceids);
                    $DB->delete_records_select('block_positions', 'blockinstanceid IN (' . $instanceidstring . ')');
                    $instanceids = array();
                }
            }
        }
        upgrade_cleanup_unwanted_block_contexts($contextids);
        $instanceidstring = join(',', $instanceids);
        $DB->delete_records_select('block_positions', 'blockinstanceid IN (' . $instanceidstring . ')');
        unset($allblockinstances);
        unset($contextids);
        unset($instanceids);
        unset($instanceidstring);
        // Now remove the actual block instance
        $DB->delete_records_select('block_instances', 'blockname IN (' . $outmodedblocksstring . ')');
        unset($outmodedblocksstring);
        // Insert the new block instances. Remember they have not been installed yet
        // however this should not be a problem
        foreach ($newblockinstances as $blockinstance) {
            $blockinstance->id = $DB->insert_record('block_instances', $blockinstance);
            // Ensure the block context is created.
            get_context_instance(CONTEXT_BLOCK, $blockinstance->id);
        }
        unset($newblockinstances);
        upgrade_main_savepoint(true, 2009082800);
        // The end of the navigation upgrade
    }
    if ($oldversion < 2009100602) {
        /// Define table external_functions to be created
        $table = new xmldb_table('external_functions');
        /// Adding fields to table external_functions
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('name', XMLDB_TYPE_CHAR, '200', null, XMLDB_NOTNULL, null, null);
        $table->add_field('classname', XMLDB_TYPE_CHAR, '100', null, XMLDB_NOTNULL, null, null);
        $table->add_field('methodname', XMLDB_TYPE_CHAR, '100', null, XMLDB_NOTNULL, null, null);
        $table->add_field('classpath', XMLDB_TYPE_CHAR, '255', null, null, null, null);
        $table->add_field('component', XMLDB_TYPE_CHAR, '100', null, XMLDB_NOTNULL, null, null);
        /// Adding keys to table external_functions
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        /// Adding indexes to table external_functions
        $table->add_index('name', XMLDB_INDEX_UNIQUE, array('name'));
        /// Launch create table for external_functions
        $dbman->create_table($table);
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2009100602);
    }
    if ($oldversion < 2009100603) {
        /// Define table external_services to be created
        $table = new xmldb_table('external_services');
        /// Adding fields to table external_services
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('name', XMLDB_TYPE_CHAR, '200', null, XMLDB_NOTNULL, null, null);
        $table->add_field('enabled', XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('requiredcapability', XMLDB_TYPE_CHAR, '150', null, null, null, null);
        $table->add_field('restrictedusers', XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('component', XMLDB_TYPE_CHAR, '100', null, null, null, null);
        $table->add_field('timecreated', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('timemodified', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null);
        /// Adding keys to table external_services
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        /// Adding indexes to table external_services
        $table->add_index('name', XMLDB_INDEX_UNIQUE, array('name'));
        /// Launch create table for external_services
        $dbman->create_table($table);
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2009100603);
    }
    if ($oldversion < 2009100604) {
        /// Define table external_services_functions to be created
        $table = new xmldb_table('external_services_functions');
        /// Adding fields to table external_services_functions
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('externalserviceid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('functionname', XMLDB_TYPE_CHAR, '200', null, XMLDB_NOTNULL, null, null);
        /// Adding keys to table external_services_functions
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->add_key('externalserviceid', XMLDB_KEY_FOREIGN, array('externalserviceid'), 'external_services', array('id'));
        /// Launch create table for external_services_functions
        $dbman->create_table($table);
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2009100604);
    }
    if ($oldversion < 2009100605) {
        /// Define table external_services_users to be created
        $table = new xmldb_table('external_services_users');
        /// Adding fields to table external_services_users
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('externalserviceid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('userid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('iprestriction', XMLDB_TYPE_CHAR, '255', null, null, null, null);
        $table->add_field('validuntil', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null);
        $table->add_field('timecreated', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null);
        /// Adding keys to table external_services_users
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->add_key('externalserviceid', XMLDB_KEY_FOREIGN, array('externalserviceid'), 'external_services', array('id'));
        $table->add_key('userid', XMLDB_KEY_FOREIGN, array('userid'), 'user', array('id'));
        /// Launch create table for external_services_users
        $dbman->create_table($table);
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2009100605);
    }
    if ($oldversion < 2009102600) {
        /// Define table external_tokens to be created
        $table = new xmldb_table('external_tokens');
        /// Adding fields to table external_tokens
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('token', XMLDB_TYPE_CHAR, '128', null, XMLDB_NOTNULL, null, null);
        $table->add_field('tokentype', XMLDB_TYPE_INTEGER, '4', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('userid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('externalserviceid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('sid', XMLDB_TYPE_CHAR, '128', null, null, null, null);
        $table->add_field('contextid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('creatorid', XMLDB_TYPE_INTEGER, '20', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '1');
        $table->add_field('iprestriction', XMLDB_TYPE_CHAR, '255', null, null, null, null);
        $table->add_field('validuntil', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null);
        $table->add_field('timecreated', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('lastaccess', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null);
        /// Adding keys to table external_tokens
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->add_key('userid', XMLDB_KEY_FOREIGN, array('userid'), 'user', array('id'));
        $table->add_key('externalserviceid', XMLDB_KEY_FOREIGN, array('externalserviceid'), 'external_services', array('id'));
        $table->add_key('contextid', XMLDB_KEY_FOREIGN, array('contextid'), 'context', array('id'));
        $table->add_key('creatorid', XMLDB_KEY_FOREIGN, array('creatorid'), 'user', array('id'));
        /// Launch create table for external_tokens
        $dbman->create_table($table);
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2009102600);
    }
    if ($oldversion < 2009103000) {
        /// Define table blog_association to be created
        $table = new xmldb_table('blog_association');
        /// Adding fields to table blog_association
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('contextid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('blogid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        /// Adding keys to table blog_association
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->add_key('contextid', XMLDB_KEY_FOREIGN, array('contextid'), 'context', array('id'));
        $table->add_key('blogid', XMLDB_KEY_FOREIGN, array('blogid'), 'post', array('id'));
        /// Conditionally launch create table for blog_association
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        /// Define table blog_external to be created
        $table = new xmldb_table('blog_external');
        /// Adding fields to table blog_external
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('userid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('name', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null);
        $table->add_field('description', XMLDB_TYPE_TEXT, 'small', null, null, null, null);
        $table->add_field('url', XMLDB_TYPE_TEXT, 'small', null, XMLDB_NOTNULL, null, null);
        $table->add_field('filtertags', XMLDB_TYPE_CHAR, '255', null, null, null, null);
        $table->add_field('failedlastsync', XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0');
        $table->add_field('timemodified', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null);
        $table->add_field('timefetched', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0');
        /// Adding keys to table blog_external
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->add_key('userid', XMLDB_KEY_FOREIGN, array('userid'), 'user', array('id'));
        /// Conditionally launch create table for blog_external
        if ($dbman->table_exists($table)) {
            // Delete the existing one first (comes from early dev version)
            $dbman->drop_table($table);
        }
        $dbman->create_table($table);
        // now inform admins that some settings require attention after upgrade
        if (($CFG->bloglevel == BLOG_COURSE_LEVEL || $CFG->bloglevel == BLOG_GROUP_LEVEL) && empty($CFG->bloglevel_upgrade_complete)) {
            echo $OUTPUT->notification(get_string('bloglevelupgradenotice', 'admin'));
            $site = get_site();
            $a = new StdClass();
            $a->sitename = $site->fullname;
            $a->fixurl = "{$CFG->wwwroot}/{$CFG->admin}/bloglevelupgrade.php";
            $subject = get_string('bloglevelupgrade', 'admin');
            $description = get_string('bloglevelupgradedescription', 'admin', $a);
            // can not use messaging here because it is not configured yet!
            upgrade_log(UPGRADE_LOG_NOTICE, null, $subject, $description);
        }
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2009103000);
    }
    if ($oldversion < 2009110400) {
        // list of tables where we need to add new format field and convert texts
        $extendtables = array('course' => 'summary', 'course_categories' => 'description', 'course_categories' => 'description', 'course_request' => 'summary', 'grade_outcomes' => 'description', 'groups' => 'description', 'groupings' => 'description', 'scale' => 'description', 'user_info_field' => 'description', 'user_info_field' => 'defaultdata', 'user_info_data' => 'data');
        foreach ($extendtables as $tablestr => $fieldstr) {
            $formatfieldstr = $fieldstr . 'format';
            $table = new xmldb_table($tablestr);
            $field = new xmldb_field($formatfieldstr, XMLDB_TYPE_INTEGER, '2', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0', $fieldstr);
            // Check that the field doesn't already exists
            if (!$dbman->field_exists($table, $field)) {
                // Add the new field
                $dbman->add_field($table, $field);
            }
            if ($CFG->texteditors !== 'textarea') {
                $rs = $DB->get_recordset($tablestr, array($formatfieldstr => FORMAT_MOODLE), '', "id,{$fieldstr},{$formatfieldstr}");
                foreach ($rs as $rec) {
                    $rec->{$fieldstr} = text_to_html($rec->{$fieldstr}, false, false, true);
                    $rec->{$formatfieldstr} = FORMAT_HTML;
                    $DB->update_record($tablestr, $rec);
                    upgrade_set_timeout();
                }
                $rs->close();
                unset($rs);
            }
        }
        unset($rec);
        unset($extendtables);
        upgrade_main_savepoint(true, 2009110400);
    }
    if ($oldversion < 2009110401) {
        $table = new xmldb_table('user');
        // Change the precision of the description field first up.
        // This may grow!
        $field = new xmldb_field('description', XMLDB_TYPE_TEXT, 'big', null, null, null, null, 'url');
        $dbman->change_field_precision($table, $field);
        $field = new xmldb_field('descriptionformat', XMLDB_TYPE_INTEGER, '2', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0', 'description');
        // Check that the field doesn't already exists
        if (!$dbman->field_exists($table, $field)) {
            // Add the new field
            $dbman->add_field($table, $field);
        }
        if ($CFG->texteditors !== 'textarea') {
            $rs = $DB->get_recordset('user', array('descriptionformat' => FORMAT_MOODLE, 'deleted' => 0, 'htmleditor' => 1), '', "id,description,descriptionformat");
            foreach ($rs as $rec) {
                $rec->description = text_to_html($rec->description, false, false, true);
                $rec->descriptionformat = FORMAT_HTML;
                $DB->update_record('user', $rec);
                upgrade_set_timeout();
            }
            $rs->close();
        }
        upgrade_main_savepoint(true, 2009110401);
    }
    if ($oldversion < 2009112400) {
        if (empty($CFG->passwordsaltmain)) {
            $subject = get_string('check_passwordsaltmain_name', 'report_security');
            $description = get_string('check_passwordsaltmain_warning', 'report_security');
            upgrade_log(UPGRADE_LOG_NOTICE, null, $subject, $description);
        }
        upgrade_main_savepoint(true, 2009112400);
    }
    if ($oldversion < 2010011200) {
        $table = new xmldb_table('grade_categories');
        $field = new xmldb_field('hidden', XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, 0, 'timemodified');
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        upgrade_main_savepoint(true, 2010011200);
    }
    if ($oldversion < 2010012500) {
        upgrade_fix_incorrect_mnethostids();
        upgrade_main_savepoint(true, 2010012500);
    }
    if ($oldversion < 2010012600) {
        // do stuff to the mnet table
        $table = new xmldb_table('mnet_rpc');
        $field = new xmldb_field('parent_type', XMLDB_TYPE_CHAR, '20', null, XMLDB_NOTNULL, null, null, 'xmlrpc_path');
        $dbman->rename_field($table, $field, 'plugintype');
        $field = new xmldb_field('parent', XMLDB_TYPE_CHAR, '20', null, XMLDB_NOTNULL, null, null, 'xmlrpc_path');
        $dbman->rename_field($table, $field, 'pluginname');
        $field = new xmldb_field('filename', XMLDB_TYPE_CHAR, '100', null, XMLDB_NOTNULL, null, null, 'profile');
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        $field = new xmldb_field('classname', XMLDB_TYPE_CHAR, '150', null, null, null, null, 'filename');
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        $field = new xmldb_field('static', XMLDB_TYPE_INTEGER, '1', null, null, null, null, 'classname');
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2010012600);
    }
    if ($oldversion < 2010012900) {
        /// Define table mnet_remote_rpc to be created
        $table = new xmldb_table('mnet_remote_rpc');
        /// Adding fields to table mnet_remote_rpc
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('functionname', XMLDB_TYPE_CHAR, '40', null, XMLDB_NOTNULL, null, null);
        $table->add_field('xmlrpcpath', XMLDB_TYPE_CHAR, '80', null, XMLDB_NOTNULL, null, null);
        /// Adding keys to table mnet_remote_rpc
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        /// Conditionally launch create table for mnet_remote_rpc
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        /// Define table mnet_remote_service2rpc to be created
        $table = new xmldb_table('mnet_remote_service2rpc');
        /// Adding fields to table mnet_remote_service2rpc
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('serviceid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0');
        $table->add_field('rpcid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0');
        /// Adding keys to table mnet_remote_service2rpc
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        /// Adding indexes to table mnet_remote_service2rpc
        $table->add_index('rpcid_serviceid', XMLDB_INDEX_UNIQUE, array('rpcid', 'serviceid'));
        /// Conditionally launch create table for mnet_remote_service2rpc
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        /// Rename field function_name on table mnet_rpc to functionname
        $table = new xmldb_table('mnet_rpc');
        $field = new xmldb_field('function_name', XMLDB_TYPE_CHAR, '40', null, XMLDB_NOTNULL, null, null, 'id');
        /// Launch rename field function_name
        $dbman->rename_field($table, $field, 'functionname');
        /// Rename field xmlrpc_path on table mnet_rpc to xmlrpcpath
        $table = new xmldb_table('mnet_rpc');
        $field = new xmldb_field('xmlrpc_path', XMLDB_TYPE_CHAR, '80', null, XMLDB_NOTNULL, null, null, 'function_name');
        /// Launch rename field xmlrpc_path
        $dbman->rename_field($table, $field, 'xmlrpcpath');
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2010012900);
    }
    if ($oldversion < 2010012901) {
        /// Define field plugintype to be added to mnet_remote_rpc
        $table = new xmldb_table('mnet_remote_rpc');
        $field = new xmldb_field('plugintype', XMLDB_TYPE_CHAR, '20', null, XMLDB_NOTNULL, null, null, 'xmlrpcpath');
        /// Conditionally launch add field plugintype
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        /// Define field pluginname to be added to mnet_remote_rpc
        $field = new xmldb_field('pluginname', XMLDB_TYPE_CHAR, '20', null, XMLDB_NOTNULL, null, null, 'plugintype');
        /// Conditionally launch add field pluginname
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2010012901);
    }
    if ($oldversion < 2010012902) {
        /// Define field enabled to be added to mnet_remote_rpc
        $table = new xmldb_table('mnet_remote_rpc');
        $field = new xmldb_field('enabled', XMLDB_TYPE_INTEGER, '1', null, XMLDB_NOTNULL, null, null, 'pluginname');
        /// Conditionally launch add field enabled
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2010012902);
    }
    /// MDL-17863. Increase the portno column length on mnet_host to handle any port number
    if ($oldversion < 2010020100) {
        /// Changing precision of field portno on table mnet_host to (5)
        $table = new xmldb_table('mnet_host');
        $field = new xmldb_field('portno', XMLDB_TYPE_INTEGER, '5', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0', 'transport');
        /// Launch change of precision for field portno
        $dbman->change_field_precision($table, $field);
        upgrade_main_savepoint(true, 2010020100);
    }
    if ($oldversion < 2010020300) {
        /// Define field timecreated to be added to user
        $table = new xmldb_table('user');
        $field = new xmldb_field('timecreated', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0', 'trackforums');
        if (!$dbman->field_exists($table, $field)) {
            /// Launch add field timecreated
            $dbman->add_field($table, $field);
            $DB->execute("UPDATE {user} SET timecreated = firstaccess");
            $sql = "UPDATE {user} SET timecreated = " . time() . " where timecreated = 0";
            $DB->execute($sql);
        }
        upgrade_main_savepoint(true, 2010020300);
    }
    // MDL-21407. Trim leading spaces from default tex latexpreamble causing problems under some confs
    if ($oldversion < 2010020301) {
        if ($preamble = $CFG->filter_tex_latexpreamble) {
            $preamble = preg_replace('/^ +/m', '', $preamble);
            set_config('filter_tex_latexpreamble', $preamble);
        }
        upgrade_main_savepoint(true, 2010020301);
    }
    if ($oldversion < 2010021400) {
        /// Changes to modinfo mean we need to rebuild course cache
        require_once $CFG->dirroot . '/course/lib.php';
        rebuild_course_cache(0, true);
        upgrade_main_savepoint(true, 2010021400);
    }
    if ($oldversion < 2010021800) {
        $DB->set_field('mnet_application', 'sso_jump_url', '/auth/mnet/jump.php', array('name' => 'moodle'));
        upgrade_main_savepoint(true, 2010021800);
    }
    if ($oldversion < 2010031900) {
        // regeneration of sessions is always enabled, no need for this setting any more
        unset_config('regenloginsession');
        upgrade_main_savepoint(true, 2010031900);
    }
    if ($oldversion < 2010033101.02) {
        /// Define table license to be created
        $table = new xmldb_table('license');
        /// Adding fields to table license
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('shortname', XMLDB_TYPE_CHAR, '255', null, null, null, null);
        $table->add_field('fullname', XMLDB_TYPE_TEXT, 'small', null, null, null, null);
        $table->add_field('source', XMLDB_TYPE_CHAR, '255', null, null, null, null);
        $table->add_field('enabled', XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '1');
        $table->add_field('version', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0');
        /// Adding keys to table license
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        /// Conditionally launch create table for license
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        $active_licenses = array();
        $license = new stdClass();
        // add unknown license
        $license->shortname = 'unknown';
        $license->fullname = 'Unknown license';
        $license->source = '';
        $license->enabled = 1;
        $license->version = '2010033100';
        $active_licenses[] = $license->shortname;
        if ($record = $DB->get_record('license', array('shortname' => $license->shortname))) {
            if ($record->version < $license->version) {
                // update license record
                $license->enabled = $record->enabled;
                $license->id = $record->id;
                $DB->update_record('license', $license);
            }
        } else {
            $DB->insert_record('license', $license);
        }
        // add all rights reserved license
        $license->shortname = 'allrightsreserved';
        $license->fullname = 'All rights reserved';
        $license->source = 'http://en.wikipedia.org/wiki/All_rights_reserved';
        $license->enabled = 1;
        $license->version = '2010033100';
        $active_licenses[] = $license->shortname;
        if ($record = $DB->get_record('license', array('shortname' => $license->shortname))) {
            if ($record->version < $license->version) {
                // update license record
                $license->id = $record->id;
                $license->enabled = $record->enabled;
                $DB->update_record('license', $license);
            }
        } else {
            $DB->insert_record('license', $license);
        }
        // add public domain license
        $license->shortname = 'public';
        $license->fullname = 'Public Domain';
        $license->source = 'http://creativecommons.org/licenses/publicdomain/';
        $license->enabled = 1;
        $license->version = '2010033100';
        $active_licenses[] = $license->shortname;
        if ($record = $DB->get_record('license', array('shortname' => $license->shortname))) {
            if ($record->version < $license->version) {
                // update license record
                $license->enabled = $record->enabled;
                $license->id = $record->id;
                $DB->update_record('license', $license);
            }
        } else {
            $DB->insert_record('license', $license);
        }
        // add creative commons license
        $license->shortname = 'cc';
        $license->fullname = 'Creative Commons';
        $license->source = 'http://creativecommons.org/licenses/by/3.0/';
        $license->enabled = 1;
        $license->version = '2010033100';
        $active_licenses[] = $license->shortname;
        if ($record = $DB->get_record('license', array('shortname' => $license->shortname))) {
            if ($record->version < $license->version) {
                // update license record
                $license->enabled = $record->enabled;
                $license->id = $record->id;
                $DB->update_record('license', $license);
            }
        } else {
            $DB->insert_record('license', $license);
        }
        // add creative commons no derivs license
        $license->shortname = 'cc-nd';
        $license->fullname = 'Creative Commons - NoDerivs';
        $license->source = 'http://creativecommons.org/licenses/by-nd/3.0/';
        $license->enabled = 1;
        $license->version = '2010033100';
        $active_licenses[] = $license->shortname;
        if ($record = $DB->get_record('license', array('shortname' => $license->shortname))) {
            if ($record->version < $license->version) {
                // update license record
                $license->enabled = $record->enabled;
                $license->id = $record->id;
                $DB->update_record('license', $license);
            }
        } else {
            $DB->insert_record('license', $license);
        }
        // add creative commons no commercial no derivs license
        $license->shortname = 'cc-nc-nd';
        $license->fullname = 'Creative Commons - No Commercial NoDerivs';
        $license->source = 'http://creativecommons.org/licenses/by-nc-nd/3.0/';
        $license->enabled = 1;
        $license->version = '2010033100';
        $active_licenses[] = $license->shortname;
        if ($record = $DB->get_record('license', array('shortname' => $license->shortname))) {
            if ($record->version < $license->version) {
                // update license record
                $license->enabled = $record->enabled;
                $license->id = $record->id;
                $DB->update_record('license', $license);
            }
        } else {
            $DB->insert_record('license', $license);
        }
        // add creative commons no commercial
        $license->shortname = 'cc-nc-nd';
        $license->shortname = 'cc-nc';
        $license->fullname = 'Creative Commons - No Commercial';
        $license->source = 'http://creativecommons.org/licenses/by-nd/3.0/';
        $license->enabled = 1;
        $license->version = '2010033100';
        $active_licenses[] = $license->shortname;
        if ($record = $DB->get_record('license', array('shortname' => $license->shortname))) {
            if ($record->version < $license->version) {
                // update license record
                $license->enabled = $record->enabled;
                $license->id = $record->id;
                $DB->update_record('license', $license);
            }
        } else {
            $DB->insert_record('license', $license);
        }
        // add creative commons no commercial sharealike
        $license->shortname = 'cc-nc-sa';
        $license->fullname = 'Creative Commons - No Commercial ShareAlike';
        $license->source = 'http://creativecommons.org/licenses/by-nc-sa/3.0/';
        $license->enabled = 1;
        $license->version = '2010033100';
        $active_licenses[] = $license->shortname;
        if ($record = $DB->get_record('license', array('shortname' => $license->shortname))) {
            if ($record->version < $license->version) {
                // update license record
                $license->enabled = $record->enabled;
                $license->id = $record->id;
                $DB->update_record('license', $license);
            }
        } else {
            $DB->insert_record('license', $license);
        }
        // add creative commons sharealike
        $license->shortname = 'cc-sa';
        $license->fullname = 'Creative Commons - ShareAlike';
        $license->source = 'http://creativecommons.org/licenses/by-sa/3.0/';
        $license->enabled = 1;
        $license->version = '2010033100';
        $active_licenses[] = $license->shortname;
        if ($record = $DB->get_record('license', array('shortname' => $license->shortname))) {
            if ($record->version < $license->version) {
                // update license record
                $license->enabled = $record->enabled;
                $license->id = $record->id;
                $DB->update_record('license', $license);
            }
        } else {
            $DB->insert_record('license', $license);
        }
        set_config('licenses', implode(',', $active_licenses));
        /// set site default license
        set_config('sitedefaultlicense', 'allrightsreserved');
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2010033101.02);
    }
    if ($oldversion < 2010033102.0) {
        // rename course view capability to participate
        $params = array('viewcap' => 'moodle/course:view', 'participatecap' => 'moodle/course:participate');
        $sql = "UPDATE {role_capabilities} SET capability = :participatecap WHERE capability = :viewcap";
        $DB->execute($sql, $params);
        $sql = "UPDATE {capabilities} SET name = :participatecap WHERE name = :viewcap";
        $DB->execute($sql, $params);
        // note: the view capability is readded again at the end of upgrade, but with different meaning
        upgrade_main_savepoint(true, 2010033102.0);
    }
    if ($oldversion < 2010033102.01) {
        // Define field archetype to be added to role table
        $table = new xmldb_table('role');
        $field = new xmldb_field('archetype', XMLDB_TYPE_CHAR, '30', null, XMLDB_NOTNULL, null, null, 'sortorder');
        $dbman->add_field($table, $field);
        upgrade_main_savepoint(true, 2010033102.01);
    }
    if ($oldversion < 2010033102.02) {
        // Set archetype for existing roles and change admin role to manager role
        $sql = "SELECT r.*, rc.capability\n                  FROM {role} r\n                  JOIN {role_capabilities} rc ON rc.roleid = r.id\n                 WHERE rc.contextid = :syscontextid AND rc.capability LIKE :legacycaps\n              ORDER BY r.id";
        $params = array('syscontextid' => SYSCONTEXTID, 'legacycaps' => 'moodle/legacy:%');
        $substart = strlen('moodle/legacy:');
        $roles = $DB->get_recordset_sql($sql, $params);
        // in theory could be multiple legacy flags in one role
        foreach ($roles as $role) {
            $role->archetype = substr($role->capability, $substart);
            unset($role->capability);
            if ($role->archetype === 'admin') {
                $i = '';
                if ($DB->record_exists('role', array('shortname' => 'manager')) or $DB->record_exists('role', array('name' => get_string('manager', 'role')))) {
                    $i = 2;
                    while ($DB->record_exists('role', array('shortname' => 'manager' . $i)) or $DB->record_exists('role', array('name' => get_string('manager', 'role') . $i))) {
                        $i++;
                    }
                }
                $role->archetype = 'manager';
                if ($role->shortname === 'admin') {
                    $role->shortname = 'manager' . $i;
                    $role->name = get_string('manager', 'role') . $i;
                    $role->description = get_string('managerdescription', 'role');
                }
            }
            $DB->update_record('role', $role);
        }
        $roles->close();
        upgrade_main_savepoint(true, 2010033102.02);
    }
    if ($oldversion < 2010033102.03) {
        // Now pick site admins (===have manager role assigned at the system context)
        // and store them in the new $CFG->siteadmins setting as comma separated list
        $sql = "SELECT ra.id, ra.userid\n                  FROM {role_assignments} ra\n                  JOIN {role} r ON r.id = ra.roleid\n                  JOIN {user} u ON u.id = ra.userid\n                 WHERE ra.contextid = :syscontext AND r.archetype = 'manager' AND u.deleted = 0\n              ORDER BY ra.id";
        $ras = $DB->get_records_sql($sql, array('syscontext' => SYSCONTEXTID));
        $admins = array();
        foreach ($ras as $ra) {
            $admins[$ra->userid] = $ra->userid;
            set_config('siteadmins', implode(',', $admins));
            // better to save it repeatedly, we do need at least one admin
            $DB->delete_records('role_assignments', array('id' => $ra->id));
        }
        upgrade_main_savepoint(true, 2010033102.03);
    }
    if ($oldversion < 2010033102.04) {
        // clean up the manager roles
        $managers = $DB->get_records('role', array('archetype' => 'manager'));
        foreach ($managers as $manager) {
            // now sanitize the capabilities and overrides
            $DB->delete_records('role_capabilities', array('capability' => 'moodle/site:config', 'roleid' => $manager->id));
            // only site admins may configure servers
            // note: doanything and legacy caps are deleted automatically, they get moodle/course:view later at the end of the upgrade
            // remove manager role assignments bellow the course context level - admin role was never intended for activities and blocks,
            // the problem is that those assignments would not be visible after upgrade and old style admins in activities make no sense anyway
            $DB->delete_records_select('role_assignments', "roleid = :manager AND contextid IN (SELECT id FROM {context} WHERE contextlevel > 50)", array('manager' => $manager->id));
            // allow them to assign all roles except default user, guest and frontpage - users get these roles automatically on the fly when needed
            $DB->delete_records('role_allow_assign', array('roleid' => $manager->id));
            $roles = $DB->get_records_sql("SELECT * FROM {role} WHERE archetype <> 'user' AND archetype <> 'guest' AND archetype <> 'frontpage'");
            foreach ($roles as $role) {
                $record = (object) array('roleid' => $manager->id, 'allowassign' => $role->id);
                $DB->insert_record('role_allow_assign', $record);
            }
            // allow them to override all roles
            $DB->delete_records('role_allow_override', array('roleid' => $manager->id));
            $roles = $DB->get_records_sql("SELECT * FROM {role}");
            foreach ($roles as $role) {
                $record = (object) array('roleid' => $manager->id, 'allowoverride' => $role->id);
                $DB->insert_record('role_allow_override', $record);
            }
            // allow them to switch to all following roles
            $DB->delete_records('role_allow_switch', array('roleid' => $manager->id));
            $roles = $DB->get_records_sql("SELECT * FROM {role} WHERE archetype IN ('student', 'teacher', 'editingteacher')");
            foreach ($roles as $role) {
                $record = (object) array('roleid' => $manager->id, 'allowswitch' => $role->id);
                $DB->insert_record('role_allow_switch', $record);
            }
        }
        upgrade_main_savepoint(true, 2010033102.04);
    }
    if ($oldversion < 2010033102.05) {
        // remove course:view from all roles that are not used for enrolment, it does NOT belong there because it really means user is enrolled!
        $noenrolroles = $DB->get_records_select('role', "archetype IN ('guest', 'user', 'manager', 'coursecreator', 'frontpage')");
        foreach ($noenrolroles as $role) {
            $DB->delete_records('role_capabilities', array('roleid' => $role->id, 'capability' => 'moodle/course:participate'));
        }
        upgrade_main_savepoint(true, 2010033102.05);
    }
    if ($oldversion < 2010033102.06) {
        // make sure there is nothing weird in default user role
        if (!empty($CFG->defaultuserroleid)) {
            if ($role = $DB->get_record('role', array('id' => $CFG->defaultuserroleid))) {
                if ($role->archetype !== '' and $role->archetype !== 'user') {
                    upgrade_log(UPGRADE_LOG_NOTICE, null, 'Default authenticated user role (defaultuserroleid) value is invalid, setting cleared.');
                    unset_config('defaultuserroleid');
                }
            } else {
                unset_config('defaultuserroleid');
            }
        }
        upgrade_main_savepoint(true, 2010033102.06);
    }
    if ($oldversion < 2010033102.07) {
        if (!empty($CFG->displayloginfailures) and $CFG->displayloginfailures === 'teacher') {
            upgrade_log(UPGRADE_LOG_NOTICE, null, 'Displaying of login failuters to teachers is not supported any more.');
            unset_config('displayloginfailures');
        }
        upgrade_main_savepoint(true, 2010033102.07);
    }
    if ($oldversion < 2010033102.08) {
        // make sure there are no problems in default guest role settings
        if (!empty($CFG->guestroleid)) {
            if ($role = $DB->get_record('role', array('id' => $CFG->guestroleid))) {
                if ($role->archetype !== '' and $role->archetype !== 'guest') {
                    upgrade_log(UPGRADE_LOG_NOTICE, null, 'Default guest role (guestroleid) value is invalid, setting cleared.');
                    unset_config('guestroleid');
                }
            } else {
                upgrade_log(UPGRADE_LOG_NOTICE, null, 'Role specified in Default guest role (guestroleid) does not exist, setting cleared.');
                unset_config('guestroleid');
            }
        }
        // remove all roles of the guest account - the only way to change it is to override the guest role, sorry
        // the guest account gets all the role assignments on the fly which works fine in has_capability(),
        $DB->delete_records_select('role_assignments', "userid IN (SELECT id FROM {user} WHERE username = '******')");
        upgrade_main_savepoint(true, 2010033102.08);
    }
    /// New table for storing which roles can be assigned in which contexts.
    if ($oldversion < 2010033102.09) {
        /// Define table role_context_levels to be created
        $table = new xmldb_table('role_context_levels');
        /// Adding fields to table role_context_levels
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('roleid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('contextlevel', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        /// Adding keys to table role_context_levels
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->add_key('contextlevel-roleid', XMLDB_KEY_UNIQUE, array('contextlevel', 'roleid'));
        $table->add_key('roleid', XMLDB_KEY_FOREIGN, array('roleid'), 'role', array('id'));
        /// Conditionally launch create table for role_context_levels
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2010033102.09);
    }
    if ($oldversion < 2010033102.1) {
        // Now populate the role_context_levels table with the default values
        // NOTE: do not use accesslib methods here
        $rolecontextlevels = array();
        $defaults = array('manager' => array(CONTEXT_SYSTEM, CONTEXT_COURSECAT, CONTEXT_COURSE), 'coursecreator' => array(CONTEXT_SYSTEM, CONTEXT_COURSECAT), 'editingteacher' => array(CONTEXT_COURSE, CONTEXT_MODULE), 'teacher' => array(CONTEXT_COURSE, CONTEXT_MODULE), 'student' => array(CONTEXT_COURSE, CONTEXT_MODULE), 'guest' => array(), 'user' => array(), 'frontpage' => array());
        $roles = $DB->get_records('role', array(), '', 'id, archetype');
        foreach ($roles as $role) {
            if (isset($defaults[$role->archetype])) {
                $rolecontextlevels[$role->id] = $defaults[$role->archetype];
            }
        }
        // add roles without archetypes, it may contain weird things, but we can not fix them
        list($narsql, $params) = $DB->get_in_or_equal(array_keys($defaults), SQL_PARAMS_NAMED, 'ar', false);
        $sql = "SELECT DISTINCT ra.roleid, con.contextlevel\n                  FROM {role_assignments} ra\n                  JOIN {context} con ON ra.contextid = con.id\n                  JOIN {role} r ON r.id = ra.roleid\n                 WHERE r.archetype {$narsql}";
        $existingrolecontextlevels = $DB->get_recordset_sql($sql, $params);
        foreach ($existingrolecontextlevels as $rcl) {
            if (!isset($rolecontextlevels[$rcl->roleid])) {
                $rolecontextlevels[$rcl->roleid] = array();
            }
            $rolecontextlevels[$rcl->roleid][] = $rcl->contextlevel;
        }
        $existingrolecontextlevels->close();
        // Put the data into the database.
        $rcl = new stdClass();
        foreach ($rolecontextlevels as $roleid => $contextlevels) {
            $rcl->roleid = $roleid;
            foreach ($contextlevels as $level) {
                $rcl->contextlevel = $level;
                $DB->insert_record('role_context_levels', $rcl, false);
            }
        }
        // release memory!!
        unset($roles);
        unset($defaults);
        unset($rcl);
        unset($existingrolecontextlevels);
        unset($rolecontextlevels);
        // Main savepoint reached
        upgrade_main_savepoint(true, 2010033102.1);
    }
    if ($oldversion < 2010040700) {
        // migrate old groupings --> groupmembersonly setting
        if (isset($CFG->enablegroupings)) {
            set_config('enablegroupmembersonly', $CFG->enablegroupings);
            unset_config('enablegroupings');
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2010040700);
    }
    if ($oldversion < 2010040900) {
        // Changing the default of field lang on table user to good old "en"
        $table = new xmldb_table('user');
        $field = new xmldb_field('lang', XMLDB_TYPE_CHAR, '30', null, XMLDB_NOTNULL, null, 'en', 'country');
        // Launch change of default for field lang
        $dbman->change_field_default($table, $field);
        // update main site lang
        if (strpos($CFG->lang, '_utf8') !== false) {
            $lang = str_replace('_utf8', '', $CFG->lang);
            set_config('lang', $lang);
        }
        // tweak langlist
        if (!empty($CFG->langlist)) {
            $langs = explode(',', $CFG->langlist);
            foreach ($langs as $key => $lang) {
                $lang = str_replace('_utf8', '', $lang);
                $langs[$key] = $lang;
            }
            set_config('langlist', implode(',', $langs));
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2010040900);
    }
    if ($oldversion < 2010040901) {
        // Remove "_utf8" suffix from all langs in user table
        $langs = $DB->get_records_sql("SELECT DISTINCT lang FROM {user} WHERE lang LIKE ?", array('%_utf8'));
        foreach ($langs as $lang => $unused) {
            $newlang = str_replace('_utf8', '', $lang);
            $sql = "UPDATE {user} SET lang = :newlang WHERE lang = :lang";
            $DB->execute($sql, array('newlang' => $newlang, 'lang' => $lang));
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2010040901);
    }
    if ($oldversion < 2010041301) {
        $sql = "UPDATE {block} SET name=? WHERE name=?";
        $DB->execute($sql, array('navigation', 'global_navigation_tree'));
        $DB->execute($sql, array('settings', 'settings_navigation_tree'));
        $sql = "UPDATE {block_instances} SET blockname=? WHERE blockname=?";
        $DB->execute($sql, array('navigation', 'global_navigation_tree'));
        $DB->execute($sql, array('settings', 'settings_navigation_tree'));
        upgrade_main_savepoint(true, 2010041301);
    }
    if ($oldversion < 2010042100) {
        /// Define table backup_controllers to be created
        $table = new xmldb_table('backup_controllers');
        /// Adding fields to table backup_controllers
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('backupid', XMLDB_TYPE_CHAR, '32', null, XMLDB_NOTNULL, null, null);
        $table->add_field('type', XMLDB_TYPE_CHAR, '6', null, XMLDB_NOTNULL, null, null);
        $table->add_field('itemid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('format', XMLDB_TYPE_CHAR, '20', null, XMLDB_NOTNULL, null, null);
        $table->add_field('interactive', XMLDB_TYPE_INTEGER, '4', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('purpose', XMLDB_TYPE_INTEGER, '4', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('userid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('status', XMLDB_TYPE_INTEGER, '4', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('execution', XMLDB_TYPE_INTEGER, '4', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('executiontime', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('checksum', XMLDB_TYPE_CHAR, '32', null, XMLDB_NOTNULL, null, null);
        $table->add_field('timecreated', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('timemodified', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('controller', XMLDB_TYPE_TEXT, 'big', null, XMLDB_NOTNULL, null, null);
        /// Adding keys to table backup_controllers
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->add_key('backupid_uk', XMLDB_KEY_UNIQUE, array('backupid'));
        $table->add_key('userid_fk', XMLDB_KEY_FOREIGN, array('userid'), 'user', array('id'));
        /// Adding indexes to table backup_controllers
        $table->add_index('typeitem_ix', XMLDB_INDEX_NOTUNIQUE, array('type', 'itemid'));
        /// Conditionally launch create table for backup_controllers
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        /// Define table backup_ids_template to be created
        $table = new xmldb_table('backup_ids_template');
        /// Adding fields to table backup_ids_template
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('backupid', XMLDB_TYPE_CHAR, '32', null, XMLDB_NOTNULL, null, null);
        $table->add_field('itemname', XMLDB_TYPE_CHAR, '30', null, XMLDB_NOTNULL, null, null);
        $table->add_field('itemid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('parentitemid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null);
        /// Adding keys to table backup_ids_template
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->add_key('backupid_itemname_itemid_uk', XMLDB_KEY_UNIQUE, array('backupid', 'itemname', 'itemid'));
        /// Adding indexes to table backup_ids_template
        $table->add_index('backupid_parentitemid_ix', XMLDB_INDEX_NOTUNIQUE, array('backupid', 'itemname', 'parentitemid'));
        /// Conditionally launch create table for backup_controllers
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2010042100);
    }
    if ($oldversion < 2010042301) {
        $table = new xmldb_table('course_sections');
        $field = new xmldb_field('name', XMLDB_TYPE_CHAR, '255', null, null, null, null, 'section');
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        upgrade_main_savepoint(true, 2010042301);
    }
    if ($oldversion < 2010042302) {
        // Define table cohort to be created
        $table = new xmldb_table('cohort');
        // Adding fields to table cohort
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('contextid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('name', XMLDB_TYPE_CHAR, '254', null, XMLDB_NOTNULL, null, null);
        $table->add_field('idnumber', XMLDB_TYPE_CHAR, '100', null, null, null, null);
        $table->add_field('description', XMLDB_TYPE_TEXT, 'small', null, null, null, null);
        $table->add_field('descriptionformat', XMLDB_TYPE_INTEGER, '2', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('component', XMLDB_TYPE_CHAR, '100', null, XMLDB_NOTNULL, null, null);
        $table->add_field('timecreated', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('timemodified', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        // Adding keys to table cohort
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->add_key('context', XMLDB_KEY_FOREIGN, array('contextid'), 'context', array('id'));
        // Conditionally launch create table for cohort
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        upgrade_main_savepoint(true, 2010042302);
    }
    if ($oldversion < 2010042303) {
        // Define table cohort_members to be created
        $table = new xmldb_table('cohort_members');
        // Adding fields to table cohort_members
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('cohortid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0');
        $table->add_field('userid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0');
        $table->add_field('timeadded', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0');
        // Adding keys to table cohort_members
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->add_key('cohortid', XMLDB_KEY_FOREIGN, array('cohortid'), 'cohort', array('id'));
        $table->add_key('userid', XMLDB_KEY_FOREIGN, array('userid'), 'user', array('id'));
        // Adding indexes to table cohort_members
        $table->add_index('cohortid-userid', XMLDB_INDEX_UNIQUE, array('cohortid', 'userid'));
        // Conditionally launch create table for cohort_members
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2010042303);
    }
    if ($oldversion < 2010042800) {
        //drop the previously created ratings table
        $table = new xmldb_table('ratings');
        if ($dbman->table_exists($table)) {
            $dbman->drop_table($table);
        }
        //create the rating table (replaces module specific rating implementations)
        $table = new xmldb_table('rating');
        if ($dbman->table_exists($table)) {
            $dbman->drop_table($table);
        }
        /// Adding fields to table rating
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('contextid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('itemid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('scaleid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null);
        $table->add_field('rating', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('userid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('timecreated', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('timemodified', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        /// Adding keys to table rating
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->add_key('contextid', XMLDB_KEY_FOREIGN, array('contextid'), 'context', array('id'));
        $table->add_key('userid', XMLDB_KEY_FOREIGN, array('userid'), 'user', array('id'));
        /// Adding indexes to table rating
        $table->add_index('itemid', XMLDB_INDEX_NOTUNIQUE, array('itemid'));
        /// Create table for ratings
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        upgrade_main_savepoint(true, 2010042800);
    }
    if ($oldversion < 2010042801) {
        // migrating old comments block content
        $DB->execute("UPDATE {comments}\n                         SET contextid = (SELECT parentcontextid\n                                            FROM {block_instances}\n                                           WHERE id = {comments}.itemid AND blockname = 'comments'),\n                             commentarea = 'page_comments',\n                             itemid = 0\n                       WHERE commentarea = 'block_comments'\n                             AND itemid != 0\n                             AND EXISTS (SELECT 'x'\n                                           FROM {block_instances}\n                                          WHERE id = {comments}.itemid\n                                                AND blockname = 'comments')");
        // remove all orphaned record
        $DB->delete_records('comments', array('commentarea' => 'block_comments'));
        upgrade_main_savepoint(true, 2010042801);
    }
    if ($oldversion < 2010042802) {
        // Change backup_controllers->type to varchar10 (recreate dep. index)
        /// Define index typeitem_ix (not unique) to be dropped form backup_controllers
        $table = new xmldb_table('backup_controllers');
        $index = new xmldb_index('typeitem_ix', XMLDB_INDEX_NOTUNIQUE, array('type', 'itemid'));
        /// Conditionally launch drop index typeitem_ix
        if ($dbman->index_exists($table, $index)) {
            $dbman->drop_index($table, $index);
        }
        /// Changing precision of field type on table backup_controllers to (10)
        $table = new xmldb_table('backup_controllers');
        $field = new xmldb_field('type', XMLDB_TYPE_CHAR, '10', null, XMLDB_NOTNULL, null, null, 'backupid');
        /// Launch change of precision for field type
        $dbman->change_field_precision($table, $field);
        /// Define index typeitem_ix (not unique) to be added to backup_controllers
        $table = new xmldb_table('backup_controllers');
        $index = new xmldb_index('typeitem_ix', XMLDB_INDEX_NOTUNIQUE, array('type', 'itemid'));
        /// Conditionally launch add index typeitem_ix
        if (!$dbman->index_exists($table, $index)) {
            $dbman->add_index($table, $index);
        }
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2010042802);
    }
    if ($oldversion < 2010043000) {
        // Adding new course completion feature
        /// Add course completion tables
        /// Define table course_completion_aggr_methd to be created
        $table = new xmldb_table('course_completion_aggr_methd');
        /// Adding fields to table course_completion_aggr_methd
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('course', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0');
        $table->add_field('criteriatype', XMLDB_TYPE_INTEGER, '20', XMLDB_UNSIGNED, null, null, null);
        $table->add_field('method', XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0');
        $table->add_field('value', XMLDB_TYPE_NUMBER, '10, 5', null, null, null, null);
        /// Adding keys to table course_completion_aggr_methd
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        /// Adding indexes to table course_completion_aggr_methd
        $table->add_index('course', XMLDB_INDEX_NOTUNIQUE, array('course'));
        $table->add_index('criteriatype', XMLDB_INDEX_NOTUNIQUE, array('criteriatype'));
        /// Conditionally launch create table for course_completion_aggr_methd
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        /// Define table course_completion_criteria to be created
        $table = new xmldb_table('course_completion_criteria');
        /// Adding fields to table course_completion_criteria
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('course', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0');
        $table->add_field('criteriatype', XMLDB_TYPE_INTEGER, '20', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0');
        $table->add_field('module', XMLDB_TYPE_CHAR, '100', null, null, null, null);
        $table->add_field('moduleinstance', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null);
        $table->add_field('courseinstance', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null);
        $table->add_field('enrolperiod', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null);
        $table->add_field('timeend', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null);
        $table->add_field('gradepass', XMLDB_TYPE_NUMBER, '10, 5', null, null, null, null);
        $table->add_field('role', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null);
        /// Adding keys to table course_completion_criteria
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        /// Adding indexes to table course_completion_criteria
        $table->add_index('course', XMLDB_INDEX_NOTUNIQUE, array('course'));
        /// Conditionally launch create table for course_completion_criteria
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        /// Define table course_completion_crit_compl to be created
        $table = new xmldb_table('course_completion_crit_compl');
        /// Adding fields to table course_completion_crit_compl
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('userid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0');
        $table->add_field('course', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0');
        $table->add_field('criteriaid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0');
        $table->add_field('gradefinal', XMLDB_TYPE_NUMBER, '10, 5', null, null, null, null);
        $table->add_field('unenroled', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null);
        $table->add_field('deleted', XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, null, null, null);
        $table->add_field('timecompleted', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null);
        /// Adding keys to table course_completion_crit_compl
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        /// Adding indexes to table course_completion_crit_compl
        $table->add_index('userid', XMLDB_INDEX_NOTUNIQUE, array('userid'));
        $table->add_index('course', XMLDB_INDEX_NOTUNIQUE, array('course'));
        $table->add_index('criteriaid', XMLDB_INDEX_NOTUNIQUE, array('criteriaid'));
        $table->add_index('timecompleted', XMLDB_INDEX_NOTUNIQUE, array('timecompleted'));
        /// Conditionally launch create table for course_completion_crit_compl
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        /// Define table course_completion_notify to be created
        $table = new xmldb_table('course_completion_notify');
        /// Adding fields to table course_completion_notify
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('course', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0');
        $table->add_field('role', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0');
        $table->add_field('message', XMLDB_TYPE_TEXT, 'small', null, XMLDB_NOTNULL, null, null);
        $table->add_field('timesent', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0');
        /// Adding keys to table course_completion_notify
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        /// Adding indexes to table course_completion_notify
        $table->add_index('course', XMLDB_INDEX_NOTUNIQUE, array('course'));
        /// Conditionally launch create table for course_completion_notify
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        /// Define table course_completions to be created
        $table = new xmldb_table('course_completions');
        /// Adding fields to table course_completions
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('userid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0');
        $table->add_field('course', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0');
        $table->add_field('deleted', XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, null, null, null);
        $table->add_field('timenotified', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null);
        $table->add_field('timeenrolled', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0');
        $table->add_field('timestarted', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0');
        $table->add_field('timecompleted', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null);
        $table->add_field('reaggregate', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0');
        /// Adding keys to table course_completions
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        /// Adding indexes to table course_completions
        $table->add_index('userid', XMLDB_INDEX_NOTUNIQUE, array('userid'));
        $table->add_index('course', XMLDB_INDEX_NOTUNIQUE, array('course'));
        $table->add_index('timecompleted', XMLDB_INDEX_NOTUNIQUE, array('timecompleted'));
        /// Conditionally launch create table for course_completions
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        /// Add cols to course table
        /// Define field enablecompletion to be added to course
        $table = new xmldb_table('course');
        $field = new xmldb_field('enablecompletion', XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0', 'defaultrole');
        /// Conditionally launch add field enablecompletion
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        /// Define field completionstartonenrol to be added to course
        $field = new xmldb_field('completionstartonenrol', XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0', 'enablecompletion');
        /// Conditionally launch add field completionstartonenrol
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        /// Define field completionnotify to be added to course
        $field = new xmldb_field('completionnotify', XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0', 'enablecompletion');
        /// Conditionally launch add field completionnotify
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        upgrade_main_savepoint(true, 2010043000);
    }
    if ($oldversion < 2010043001) {
        /// Define table registration_hubs to be created
        $table = new xmldb_table('registration_hubs');
        /// Adding fields to table registration_hubs
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('token', XMLDB_TYPE_CHAR, '40', null, XMLDB_NOTNULL, null, null);
        $table->add_field('hubname', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null);
        $table->add_field('huburl', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null);
        $table->add_field('confirmed', XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0');
        /// Adding keys to table registration_hubs
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        /// Conditionally launch create table for registration_hubs
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2010043001);
    }
    if ($oldversion < 2010050200) {
        /// Define table backup_logs to be created
        $table = new xmldb_table('backup_logs');
        /// Adding fields to table backup_logs
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('backupid', XMLDB_TYPE_CHAR, '32', null, XMLDB_NOTNULL, null, null);
        $table->add_field('loglevel', XMLDB_TYPE_INTEGER, '4', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('message', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null);
        $table->add_field('timecreated', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        /// Adding keys to table backup_logs
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->add_key('backupid', XMLDB_KEY_FOREIGN, array('backupid'), 'backup_controllers', array('backupid'));
        /// Adding indexes to table backup_logs
        $table->add_index('backupid-id', XMLDB_INDEX_UNIQUE, array('backupid', 'id'));
        /// Conditionally launch create table for backup_logs
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        /// Drop some old backup tables, not used anymore
        /// Define table backup_files to be dropped
        $table = new xmldb_table('backup_files');
        /// Conditionally launch drop table for backup_files
        if ($dbman->table_exists($table)) {
            $dbman->drop_table($table);
        }
        /// Define table backup_ids to be dropped
        $table = new xmldb_table('backup_ids');
        /// Conditionally launch drop table for backup_ids
        if ($dbman->table_exists($table)) {
            $dbman->drop_table($table);
        }
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2010050200);
    }
    if ($oldversion < 2010050403) {
        // my_pages for My Moodle and Public Profile pages
        /// Define table my_pages to be created
        $table = new xmldb_table('my_pages');
        /// Adding fields to table my_pages
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('userid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, 0);
        $table->add_field('name', XMLDB_TYPE_CHAR, '200', null, XMLDB_NOTNULL, null, null);
        $table->add_field('private', XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '1');
        $table->add_field('sortorder', XMLDB_TYPE_INTEGER, '6', null, XMLDB_NOTNULL, null, '0');
        /// Adding keys to table my_pages
        $table->add_key('id', XMLDB_KEY_PRIMARY, array('id'));
        /// Adding indexes to table my_pages
        $table->add_index('useridprivate', XMLDB_INDEX_NOTUNIQUE, array('userid', 'private'));
        /// Conditionally launch create table for my_pages
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        /// Add two lines of data into this new table.  These are the default pages.
        $mypage = new stdClass();
        $mypage->userid = NULL;
        $mypage->name = '__default';
        $mypage->private = 0;
        $mypage->sortorder = 0;
        if (!$DB->record_exists('my_pages', array('userid' => NULL, 'private' => 0))) {
            $DB->insert_record('my_pages', $mypage);
        }
        $mypage->private = 1;
        if (!$DB->record_exists('my_pages', array('userid' => NULL, 'private' => 1))) {
            $DB->insert_record('my_pages', $mypage);
        }
        /// This bit is a "illegal" hack, unfortunately, but there is not a better way to install default
        /// blocks right now, since the upgrade function need to be called after core AND plugins upgrade,
        /// and there is no such hook yet.  Sigh.
        if ($mypage = $DB->get_record('my_pages', array('userid' => NULL, 'private' => 1))) {
            if (!$DB->record_exists('block_instances', array('pagetypepattern' => 'my-index', 'parentcontextid' => SITEID, 'subpagepattern' => $mypage->id))) {
                // No default exist there yet, let's put a few into My Moodle so it's useful.
                $blockinstance = new stdClass();
                $blockinstance->parentcontextid = SYSCONTEXTID;
                $blockinstance->showinsubcontexts = 0;
                $blockinstance->pagetypepattern = 'my-index';
                $blockinstance->subpagepattern = $mypage->id;
                $blockinstance->configdata = '';
                $blockinstance->blockname = 'private_files';
                $blockinstance->defaultregion = 'side-post';
                $blockinstance->defaultweight = 0;
                $blockinstanceid = $DB->insert_record('block_instances', $blockinstance);
                get_context_instance(CONTEXT_BLOCK, $blockinstanceid);
                $blockinstance->blockname = 'online_users';
                $blockinstance->defaultregion = 'side-post';
                $blockinstance->defaultweight = 1;
                $blockinstanceid = $DB->insert_record('block_instances', $blockinstance);
                get_context_instance(CONTEXT_BLOCK, $blockinstanceid);
                $blockinstance->blockname = 'course_overview';
                $blockinstance->defaultregion = 'content';
                $blockinstance->defaultweight = 0;
                $blockinstanceid = $DB->insert_record('block_instances', $blockinstance);
                get_context_instance(CONTEXT_BLOCK, $blockinstanceid);
            }
        }
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2010050403);
    }
    if ($oldversion < 2010051500) {
        /// Fix a bad table name that existed for a few days in HEAD
        $table = new xmldb_table('published_courses');
        if ($dbman->table_exists($table)) {
            $dbman->drop_table($table);
        }
        /// Define table course_published to be created
        $table = new xmldb_table('course_published');
        /// Adding fields to table course_published
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('hubid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('courseid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('timepublished', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('enrollable', XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '1');
        $table->add_field('hubcourseid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        /// Adding keys to table course_published
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        /// Conditionally launch create table for course_published
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2010051500);
    }
    if ($oldversion < 2010051600) {
        /// Delete the blocks completely.  All the contexts, instances etc were cleaned up above in 2009082800
        $DB->delete_records('block', array('name' => 'admin'));
        $DB->delete_records('block', array('name' => 'admin_tree'));
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2010051600);
    }
    if ($oldversion < 2010051800) {
        // switching to userid in config settings because user names are not unique and reliable enough
        if (!empty($CFG->courserequestnotify) and $CFG->courserequestnotify !== '$@NONE@$' and $CFG->courserequestnotify !== '$@ALL@$') {
            list($where, $params) = $DB->get_in_or_equal(explode(',', $CFG->courserequestnotify));
            $params[] = $CFG->mnet_localhost_id;
            $users = $DB->get_fieldset_select('user', 'id', "username {$where} AND mnethostid = ?", $params);
            if ($users) {
                set_config('courserequestnotify', implode(',', $users));
            } else {
                set_config('courserequestnotify', '$@NONE@$');
            }
        }
        upgrade_main_savepoint(true, 2010051800);
    }
    if ($oldversion < 2010051801) {
        // Update the notifyloginfailures setting.
        if ($CFG->notifyloginfailures == 'mainadmin') {
            if ($admins = explode(',', $CFG->siteadmins)) {
                $adminid = reset($admins);
                set_config('notifyloginfailures', $adminid);
            } else {
                unset_config('notifyloginfailures');
                // let them choose
            }
            unset($admins);
        } else {
            if ($CFG->notifyloginfailures == 'alladmins') {
                set_config('notifyloginfailures', '$@ALL@$');
            } else {
                set_config('notifyloginfailures', '$@NONE@$');
            }
        }
        upgrade_main_savepoint(true, 2010051801);
    }
    if ($oldversion < 2010052100) {
        // Switch to html purifier as default cleaning engine - KSES is really very bad
        if (empty($CFG->enablehtmlpurifier)) {
            unset_config('enablehtmlpurifier');
        }
        upgrade_main_savepoint(true, 2010052100);
    }
    if ($oldversion < 2010052200) {
        // Define field legacyfiles to be added to course - just in case we are upgrading from PR1
        $table = new xmldb_table('course');
        $field = new xmldb_field('legacyfiles', XMLDB_TYPE_INTEGER, '4', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0', 'maxbytes');
        // Conditionally launch add field legacyfiles
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
            // enable legacy files in all courses
            $DB->execute("UPDATE {course} SET legacyfiles = 2");
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2010052200);
    }
    if ($oldversion < 2010052401) {
        /// Define field status to be added to course_published
        $table = new xmldb_table('course_published');
        $field = new xmldb_field('status', XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, null, null, '0', 'hubcourseid');
        /// Conditionally launch add field status
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        /// Define field timechecked to be added to course_published
        $table = new xmldb_table('course_published');
        $field = new xmldb_field('timechecked', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, 'status');
        /// Conditionally launch add field timechecked
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2010052401);
    }
    if ($oldversion < 2010052700) {
        /// Define field summaryformat to be added to course sections table
        $table = new xmldb_table('course_sections');
        $field = new xmldb_field('summaryformat', XMLDB_TYPE_INTEGER, '2', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0', 'summary');
        /// Conditionally launch add field summaryformat
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        $DB->set_field('course_sections', 'summaryformat', 1, array());
        // originally treated as HTML
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2010052700);
    }
    if ($oldversion < 2010052800) {
        /// Changes to modinfo mean we need to rebuild course cache
        require_once $CFG->dirroot . '/course/lib.php';
        rebuild_course_cache(0, true);
        upgrade_main_savepoint(true, 2010052800);
    }
    if ($oldversion < 2010052801) {
        /// Define field sortorder to be added to files
        $table = new xmldb_table('files');
        $field = new xmldb_field('sortorder', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0', 'timemodified');
        /// Conditionally launch add field sortorder
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2010052801);
    }
    if ($oldversion < 2010061900.01) {
        // Define table enrol to be created
        $table = new xmldb_table('enrol');
        // Adding fields to table enrol
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('enrol', XMLDB_TYPE_CHAR, '20', null, XMLDB_NOTNULL, null, null);
        $table->add_field('status', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0');
        $table->add_field('courseid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('sortorder', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0');
        $table->add_field('name', XMLDB_TYPE_CHAR, '255', null, null, null, null);
        $table->add_field('enrolperiod', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, '0');
        $table->add_field('enrolstartdate', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, '0');
        $table->add_field('enrolenddate', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, '0');
        $table->add_field('expirynotify', XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, null, null, '0');
        $table->add_field('expirythreshold', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, '0');
        $table->add_field('notifyall', XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, null, null, '0');
        $table->add_field('password', XMLDB_TYPE_CHAR, '50', null, null, null, null);
        $table->add_field('cost', XMLDB_TYPE_CHAR, '20', null, null, null, null);
        $table->add_field('currency', XMLDB_TYPE_CHAR, '3', null, null, null, null);
        $table->add_field('roleid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, '0');
        $table->add_field('customint1', XMLDB_TYPE_INTEGER, '10', null, null, null, null);
        $table->add_field('customint2', XMLDB_TYPE_INTEGER, '10', null, null, null, null);
        $table->add_field('customint3', XMLDB_TYPE_INTEGER, '10', null, null, null, null);
        $table->add_field('customint4', XMLDB_TYPE_INTEGER, '10', null, null, null, null);
        $table->add_field('customchar1', XMLDB_TYPE_CHAR, '255', null, null, null, null);
        $table->add_field('customchar2', XMLDB_TYPE_CHAR, '255', null, null, null, null);
        $table->add_field('customdec1', XMLDB_TYPE_NUMBER, '12, 7', null, null, null, null);
        $table->add_field('customdec2', XMLDB_TYPE_NUMBER, '12, 7', null, null, null, null);
        $table->add_field('customtext1', XMLDB_TYPE_TEXT, 'big', null, null, null, null);
        $table->add_field('customtext2', XMLDB_TYPE_TEXT, 'big', null, null, null, null);
        $table->add_field('timecreated', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0');
        $table->add_field('timemodified', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0');
        // Adding keys to table enrol
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->add_key('courseid', XMLDB_KEY_FOREIGN, array('courseid'), 'course', array('id'));
        // Adding indexes to table enrol
        $table->add_index('enrol', XMLDB_INDEX_NOTUNIQUE, array('enrol'));
        // launch create table for enrol
        $dbman->create_table($table);
        // Main savepoint reached
        upgrade_main_savepoint(true, 2010061900.01);
    }
    if ($oldversion < 2010061900.02) {
        // Define table course_participant to be created
        $table = new xmldb_table('user_enrolments');
        // Adding fields to table course_participant
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('status', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0');
        $table->add_field('enrolid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('userid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('timestart', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0');
        $table->add_field('timeend', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '2147483647');
        $table->add_field('modifierid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0');
        $table->add_field('timecreated', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0');
        $table->add_field('timemodified', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0');
        // Adding keys to table course_participant
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->add_key('enrolid', XMLDB_KEY_FOREIGN, array('enrolid'), 'enrol', array('id'));
        $table->add_key('userid', XMLDB_KEY_FOREIGN, array('userid'), 'user', array('id'));
        $table->add_key('modifierid', XMLDB_KEY_FOREIGN, array('modifierid'), 'user', array('id'));
        // Adding indexes to table user_enrolments
        $table->add_index('enrolid-userid', XMLDB_INDEX_UNIQUE, array('enrolid', 'userid'));
        // Launch create table for course_participant
        $dbman->create_table($table);
        // Main savepoint reached
        upgrade_main_savepoint(true, 2010061900.02);
    }
    if ($oldversion < 2010061900.03) {
        // Define field itemid to be added to role_assignments
        $table = new xmldb_table('role_assignments');
        $field = new xmldb_field('itemid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, 0, 'enrol');
        // Launch add field itemid
        $dbman->add_field($table, $field);
        // The new enrol plugins may assign one role several times in one context,
        // if we did not allow it we would have big problems with roles when unenrolling
        $table = new xmldb_table('role_assignments');
        $index = new xmldb_index('contextid-roleid-userid', XMLDB_INDEX_UNIQUE, array('contextid', 'roleid', 'userid'));
        // Conditionally launch drop index contextid-roleid-userid
        if ($dbman->index_exists($table, $index)) {
            $dbman->drop_index($table, $index);
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2010061900.03);
    }
    if ($oldversion < 2010061900.04) {
        // there is no default course role any more, each enrol plugin has to handle it separately
        if (!empty($CFG->defaultcourseroleid)) {
            $sql = "UPDATE {course} SET defaultrole = :defaultrole WHERE defaultrole = 0";
            $params = array('defaultrole' => $CFG->defaultcourseroleid);
            $DB->execute($sql, $params);
        }
        unset_config('defaultcourseroleid');
        // Main savepoint reached
        upgrade_main_savepoint(true, 2010061900.04);
    }
    if ($oldversion < 2010061900.05) {
        // make sure enrol settings make actually sense and tweak defaults a bit
        $sqlempty = $DB->sql_empty();
        // set course->enrol to default value so that other upgrade code is simpler
        $defaultenrol = empty($CFG->enrol) ? 'manual' : $CFG->enrol;
        $sql = "UPDATE {course} SET enrol = ? WHERE enrol = '{$sqlempty}'";
        $DB->execute($sql, array($defaultenrol));
        unset_config('enrol');
        if (!isset($CFG->enrol_plugins_enabled) or empty($CFG->enrol_plugins_enabled)) {
            set_config('enrol_plugins_enabled', 'manual');
        } else {
            $enabledplugins = explode(',', $CFG->enrol_plugins_enabled);
            $enabledplugins = array_unique($enabledplugins);
            set_config('enrol_plugins_enabled', implode(',', $enabledplugins));
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2010061900.05);
    }
    if ($oldversion < 2010061900.06) {
        $sqlempty = $DB->sql_empty();
        $params = array('siteid' => SITEID);
        // enable manual in all courses
        $sql = "INSERT INTO {enrol} (enrol, status, courseid, sortorder, enrolperiod, expirynotify, expirythreshold, notifyall, roleid, timecreated, timemodified)\n                SELECT 'manual', 0, id, 0, enrolperiod, expirynotify, expirythreshold, notifystudents, defaultrole, timecreated, timemodified\n                  FROM {course}\n                 WHERE id <> :siteid";
        $DB->execute($sql, $params);
        // enable self enrol only when course enrollable
        $sql = "INSERT INTO {enrol} (enrol, status, courseid, sortorder, enrolperiod, enrolstartdate, enrolenddate, expirynotify, expirythreshold,\n                                     notifyall, password, roleid, timecreated, timemodified)\n                SELECT 'self', 0, id, 1, enrolperiod, enrolstartdate, enrolenddate, expirynotify, expirythreshold,\n                       notifystudents, password, defaultrole, timecreated, timemodified\n                  FROM {course}\n                 WHERE enrollable = 1 AND id <> :siteid";
        $DB->execute($sql, $params);
        // enable guest access if previously allowed - separately with or without password
        $sql = "INSERT INTO {enrol} (enrol, status, courseid, sortorder, timecreated, timemodified)\n                SELECT 'guest', 0, id, 2, timecreated, timemodified\n                  FROM {course}\n                 WHERE guest = 1 AND id <> :siteid";
        $DB->execute($sql, $params);
        $sql = "INSERT INTO {enrol} (enrol, status, courseid, sortorder, password, timecreated, timemodified)\n                SELECT 'guest', 0, id, 2, password, timecreated, timemodified\n                  FROM {course}\n                 WHERE guest = 2 and password <> '{$sqlempty}' AND id <> :siteid";
        $DB->execute($sql, $params);
        upgrade_main_savepoint(true, 2010061900.06);
    }
    if ($oldversion < 2010061900.07) {
        // now migrate old style "interactive" enrol plugins - we know them by looking into course.enrol
        $params = array('siteid' => SITEID);
        $enabledplugins = explode(',', $CFG->enrol_plugins_enabled);
        $usedplugins = $DB->get_fieldset_sql("SELECT DISTINCT enrol FROM {course}");
        foreach ($usedplugins as $plugin) {
            if ($plugin === 'manual') {
                continue;
            }
            $enabled = in_array($plugin, $enabledplugins) ? 0 : 1;
            // 0 means active, 1 disabled
            $sql = "INSERT INTO {enrol} (enrol, status, courseid, sortorder, enrolperiod, enrolstartdate, enrolenddate, expirynotify, expirythreshold,\n                                         notifyall, password, cost, currency, roleid, timecreated, timemodified)\n                    SELECT enrol, {$enabled}, id, 4, enrolperiod, enrolstartdate, enrolenddate, expirynotify, expirythreshold,\n                           notifystudents, password, cost, currency, defaultrole, timecreated, timemodified\n                      FROM {course}\n                     WHERE enrol = :plugin AND id <> :siteid";
            $params['plugin'] = $plugin;
            $DB->execute($sql, $params);
        }
        upgrade_main_savepoint(true, 2010061900.07);
    }
    if ($oldversion < 2010061900.08) {
        // now migrate the rest - these plugins are not in course.enrol, instead we just look for suspicious role assignments,
        // unfortunately old enrol plugins were doing sometimes weird role assignments :-(
        // enabled
        $enabledplugins = explode(',', $CFG->enrol_plugins_enabled);
        list($sqlenabled, $params) = $DB->get_in_or_equal($enabledplugins, SQL_PARAMS_NAMED, 'ena');
        $params['siteid'] = SITEID;
        $sql = "INSERT INTO {enrol} (enrol, status, courseid, sortorder, enrolperiod, enrolstartdate, enrolenddate, expirynotify, expirythreshold,\n                                     notifyall, password, cost, currency, roleid, timecreated, timemodified)\n                SELECT DISTINCT ra.enrol, 0, c.id, 5, c.enrolperiod, c.enrolstartdate, c.enrolenddate, c.expirynotify, c.expirythreshold,\n                       c.notifystudents, c.password, c.cost, c.currency, c.defaultrole, c.timecreated, c.timemodified\n                  FROM {course} c\n                  JOIN {context} ctx ON (ctx.instanceid = c.id AND ctx.contextlevel = 50)\n                  JOIN {role_assignments} ra ON (ra.contextid = ctx.id)\n                 WHERE c.id <> :siteid AND ra.enrol {$sqlenabled}";
        $processed = $DB->get_fieldset_sql("SELECT DISTINCT enrol FROM {enrol}");
        if ($processed) {
            list($sqlnotprocessed, $params2) = $DB->get_in_or_equal($processed, SQL_PARAMS_NAMED, 'np', false);
            $params = array_merge($params, $params2);
            $sql = "{$sql} AND ra.enrol {$sqlnotprocessed}";
        }
        $DB->execute($sql, $params);
        // disabled
        $params = array('siteid' => SITEID);
        $sql = "INSERT INTO {enrol} (enrol, status, courseid, sortorder, enrolperiod, enrolstartdate, enrolenddate, expirynotify, expirythreshold,\n                                     notifyall, password, cost, currency, roleid, timecreated, timemodified)\n                SELECT DISTINCT ra.enrol, 1, c.id, 5, c.enrolperiod, c.enrolstartdate, c.enrolenddate, c.expirynotify, c.expirythreshold,\n                       c.notifystudents, c.password, c.cost, c.currency, c.defaultrole, c.timecreated, c.timemodified\n                  FROM {course} c\n                  JOIN {context} ctx ON (ctx.instanceid = c.id AND ctx.contextlevel = 50)\n                  JOIN {role_assignments} ra ON (ra.contextid = ctx.id)\n                 WHERE c.id <> :siteid";
        $processed = $DB->get_fieldset_sql("SELECT DISTINCT enrol FROM {enrol}");
        if ($processed) {
            list($sqlnotprocessed, $params2) = $DB->get_in_or_equal($processed, SQL_PARAMS_NAMED, 'np', false);
            $params = array_merge($params, $params2);
            $sql = "{$sql} AND ra.enrol {$sqlnotprocessed}";
        }
        $DB->execute($sql, $params);
        upgrade_main_savepoint(true, 2010061900.08);
    }
    if ($oldversion < 2010061900.09) {
        // unfortunately there may be still some leftovers
        // after reconfigured, uninstalled or borked enrol plugins,
        // unfortunately this may be a bit slow - but there should not be many of these
        upgrade_set_timeout();
        $sqlempty = $DB->sql_empty();
        $sql = "SELECT DISTINCT c.id AS courseid, ra.enrol, c.timecreated, c.timemodified\n                  FROM {course} c\n                  JOIN {context} ctx ON (ctx.instanceid = c.id AND ctx.contextlevel = 50)\n                  JOIN {role_assignments} ra ON (ra.contextid = ctx.id AND ra.enrol <> '{$sqlempty}')\n             LEFT JOIN {enrol} e ON (e.courseid = c.id AND e.enrol = ra.enrol)\n                 WHERE c.id <> :siteid AND e.id IS NULL";
        $params = array('siteid' => SITEID);
        $rs = $DB->get_recordset_sql($sql, $params);
        foreach ($rs as $enrol) {
            upgrade_set_timeout();
            $enrol->status = 1;
            // better disable them
            $DB->insert_record('enrol', $enrol);
        }
        $rs->close();
        upgrade_main_savepoint(true, 2010061900.09);
    }
    if ($oldversion < 2010061900.1) {
        // migrate existing setup of meta courses, ignore records referencing invalid courses
        $sql = "INSERT INTO {enrol} (enrol, status, courseid, sortorder, customint1)\n                SELECT 'meta', 0, cm.parent_course, 5, cm.child_course\n                  FROM {course_meta} cm\n                  JOIN {course} p ON p.id = cm.parent_course\n                  JOIN {course} c ON c.id = cm.child_course";
        $DB->execute($sql);
        upgrade_main_savepoint(true, 2010061900.1);
    }
    if ($oldversion < 2010061900.11) {
        // nuke any old role assignments+enrolments in previous meta courses, we have to start from scratch
        $select = "SELECT ctx.id\n                     FROM {context} ctx\n                     JOIN {course} c ON (c.id = ctx.instanceid AND ctx.contextlevel = 50 AND c.metacourse = 1)";
        $DB->delete_records_select('role_assignments', "contextid IN ({$select}) AND enrol = 'manual'");
        // course_meta to be dropped - we use enrol_meta plugin instead now
        $table = new xmldb_table('course_meta');
        // Launch drop table for course_meta
        $dbman->drop_table($table);
        // Main savepoint reached
        upgrade_main_savepoint(true, 2010061900.11);
    }
    if ($oldversion < 2010061900.12) {
        // finally remove all obsolete fields from the course table - yay!
        // all the information was migrated to the enrol table
        // Define field guest to be dropped from course
        $table = new xmldb_table('course');
        $field = new xmldb_field('guest');
        // Conditionally launch drop field guest
        if ($dbman->field_exists($table, $field)) {
            $dbman->drop_field($table, $field);
        }
        // Define field password to be dropped from course
        $table = new xmldb_table('course');
        $field = new xmldb_field('password');
        // Conditionally launch drop field password
        if ($dbman->field_exists($table, $field)) {
            $dbman->drop_field($table, $field);
        }
        // Define field enrolperiod to be dropped from course
        $table = new xmldb_table('course');
        $field = new xmldb_field('enrolperiod');
        // Conditionally launch drop field enrolperiod
        if ($dbman->field_exists($table, $field)) {
            $dbman->drop_field($table, $field);
        }
        // Define field cost to be dropped from course
        $table = new xmldb_table('course');
        $field = new xmldb_field('cost');
        // Conditionally launch drop field cost
        if ($dbman->field_exists($table, $field)) {
            $dbman->drop_field($table, $field);
        }
        // Define field currency to be dropped from course
        $table = new xmldb_table('course');
        $field = new xmldb_field('currency');
        // Conditionally launch drop field currency
        if ($dbman->field_exists($table, $field)) {
            $dbman->drop_field($table, $field);
        }
        // Define field metacourse to be dropped from course
        $table = new xmldb_table('course');
        $field = new xmldb_field('metacourse');
        // Conditionally launch drop field metacourse
        if ($dbman->field_exists($table, $field)) {
            $dbman->drop_field($table, $field);
        }
        // Define field expirynotify to be dropped from course
        $table = new xmldb_table('course');
        $field = new xmldb_field('expirynotify');
        // Conditionally launch drop field expirynotify
        if ($dbman->field_exists($table, $field)) {
            $dbman->drop_field($table, $field);
        }
        // Define field expirythreshold to be dropped from course
        $table = new xmldb_table('course');
        $field = new xmldb_field('expirythreshold');
        // Conditionally launch drop field expirythreshold
        if ($dbman->field_exists($table, $field)) {
            $dbman->drop_field($table, $field);
        }
        // Define field notifystudents to be dropped from course
        $table = new xmldb_table('course');
        $field = new xmldb_field('notifystudents');
        // Conditionally launch drop field notifystudents
        if ($dbman->field_exists($table, $field)) {
            $dbman->drop_field($table, $field);
        }
        // Define field enrollable to be dropped from course
        $table = new xmldb_table('course');
        $field = new xmldb_field('enrollable');
        // Conditionally launch drop field enrollable
        if ($dbman->field_exists($table, $field)) {
            $dbman->drop_field($table, $field);
        }
        // Define field enrolstartdate to be dropped from course
        $table = new xmldb_table('course');
        $field = new xmldb_field('enrolstartdate');
        // Conditionally launch drop field enrolstartdate
        if ($dbman->field_exists($table, $field)) {
            $dbman->drop_field($table, $field);
        }
        // Define field enrolenddate to be dropped from course
        $table = new xmldb_table('course');
        $field = new xmldb_field('enrolenddate');
        // Conditionally launch drop field enrolenddate
        if ($dbman->field_exists($table, $field)) {
            $dbman->drop_field($table, $field);
        }
        // Define field enrol to be dropped from course
        $table = new xmldb_table('course');
        $field = new xmldb_field('enrol');
        // Conditionally launch drop field enrol
        if ($dbman->field_exists($table, $field)) {
            $dbman->drop_field($table, $field);
        }
        // Define field defaultrole to be dropped from course
        $table = new xmldb_table('course');
        $field = new xmldb_field('defaultrole');
        // Conditionally launch drop field defaultrole
        if ($dbman->field_exists($table, $field)) {
            $dbman->drop_field($table, $field);
        }
        upgrade_main_savepoint(true, 2010061900.12);
    }
    if ($oldversion < 2010061900.13) {
        // Define field visibleold to be added to course_categories
        $table = new xmldb_table('course_categories');
        $field = new xmldb_field('visibleold', XMLDB_TYPE_INTEGER, '1', null, XMLDB_NOTNULL, null, '1', 'visible');
        // Launch add field visibleold
        $dbman->add_field($table, $field);
        // Main savepoint reached
        upgrade_main_savepoint(true, 2010061900.13);
    }
    if ($oldversion < 2010061900.14) {
        // keep previous visible state
        $DB->execute("UPDATE {course_categories} SET visibleold = visible");
        // make sure all subcategories of hidden categories are hidden too, do not rely on category path yet
        $sql = "SELECT c.id\n                  FROM {course_categories} c\n                  JOIN {course_categories} pc ON (pc.id = c.parent AND pc.visible = 0)\n                 WHERE c.visible = 1";
        while ($categories = $DB->get_records_sql($sql)) {
            foreach ($categories as $cat) {
                upgrade_set_timeout();
                $DB->set_field('course_categories', 'visible', 0, array('id' => $cat->id));
            }
        }
        upgrade_main_savepoint(true, 2010061900.14);
    }
    if ($oldversion < 2010061900.15) {
        // Define field visibleold to be added to course
        $table = new xmldb_table('course');
        $field = new xmldb_field('visibleold', XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '1', 'visible');
        // Launch add field visibleold
        $dbman->add_field($table, $field);
        // Main savepoint reached
        upgrade_main_savepoint(true, 2010061900.15);
    }
    if ($oldversion < 2010061900.16) {
        // keep previous visible state
        $DB->execute("UPDATE {course} SET visibleold = visible");
        // make sure all courses in hidden categories are hidden
        $DB->execute("UPDATE {course} SET visible = 0 WHERE category IN (SELECT id FROM {course_categories} WHERE visible = 0)");
        upgrade_main_savepoint(true, 2010061900.16);
    }
    if ($oldversion < 2010061900.2) {
        // now set up the enrolments - look for roles with course:participate only at course context - the category enrolments are synchronised later by archetype and new capability
        $syscontext = get_context_instance(CONTEXT_SYSTEM);
        $params = array('syscontext' => $syscontext->id, 'participate' => 'moodle/course:participate');
        $roles = $DB->get_fieldset_sql("SELECT DISTINCT roleid FROM {role_capabilities} WHERE contextid = :syscontext AND capability = :participate AND permission = 1", $params);
        if ($roles) {
            list($sqlroles, $params) = $DB->get_in_or_equal($roles, SQL_PARAMS_NAMED, 'r');
            $sql = "INSERT INTO {user_enrolments} (status, enrolid, userid, timestart, timeend, modifierid, timecreated, timemodified)\n\n                    SELECT 0, e.id, ra.userid, MIN(ra.timestart), MIN(ra.timeend), 0, MIN(ra.timemodified), MAX(ra.timemodified)\n                      FROM {role_assignments} ra\n                      JOIN {context} c ON (c.id = ra.contextid AND c.contextlevel = 50)\n                      JOIN {enrol} e ON (e.enrol = ra.enrol AND e.courseid = c.instanceid)\n                      JOIN {user} u ON u.id = ra.userid\n                     WHERE u.deleted = 0 AND ra.roleid {$sqlroles}\n                  GROUP BY e.id, ra.userid";
            $DB->execute($sql, $params);
        }
        upgrade_main_savepoint(true, 2010061900.2);
    }
    if ($oldversion < 2010061900.21) {
        // hidden is completely removed, timestart+timeend are now in the user_enrolments table
        // Define field hidden to be dropped from role_assignments
        $table = new xmldb_table('role_assignments');
        $field = new xmldb_field('hidden');
        // Conditionally launch drop field hidden
        if ($dbman->field_exists($table, $field)) {
            $dbman->drop_field($table, $field);
        }
        // Define field timestart to be dropped from role_assignments
        $table = new xmldb_table('role_assignments');
        $field = new xmldb_field('timestart');
        // Conditionally launch drop field timestart
        if ($dbman->field_exists($table, $field)) {
            $dbman->drop_field($table, $field);
        }
        // Define field timeend to be dropped from role_assignments
        $table = new xmldb_table('role_assignments');
        $field = new xmldb_field('timeend');
        // Conditionally launch drop field timeend
        if ($dbman->field_exists($table, $field)) {
            $dbman->drop_field($table, $field);
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2010061900.21);
    }
    if ($oldversion < 2010061900.22) {
        // Rename field enrol on table role_assignments to component and update content
        $table = new xmldb_table('role_assignments');
        $field = new xmldb_field('enrol', XMLDB_TYPE_CHAR, '20', null, XMLDB_NOTNULL, null, null, 'modifierid');
        // Launch rename field enrol
        $dbman->rename_field($table, $field, 'component');
        // Changing precision of field component on table role_assignments to (100)
        $table = new xmldb_table('role_assignments');
        $field = new xmldb_field('component', XMLDB_TYPE_CHAR, '100', null, XMLDB_NOTNULL, null, null, 'modifierid');
        // Launch change of precision for field component
        $dbman->change_field_precision($table, $field);
        // Manual is a special case - we use empty string instead now
        $params = array('empty' => $DB->sql_empty(), 'manual' => 'manual');
        $sql = "UPDATE {role_assignments}\n                   SET component = :empty\n                 WHERE component = :manual";
        $DB->execute($sql, $params);
        // Now migrate to real enrol component names
        $params = array('empty' => $DB->sql_empty());
        $concat = $DB->sql_concat("'enrol_'", 'component');
        $sql = "UPDATE {role_assignments}\n                   SET component = {$concat}\n                 WHERE component <> :empty\n                       AND contextid IN (\n                           SELECT id\n                             FROM {context}\n                            WHERE contextlevel >= 50)";
        $DB->execute($sql, $params);
        // Now migrate to real auth component names
        $params = array('empty' => $DB->sql_empty());
        $concat = $DB->sql_concat("'auth_'", 'component');
        $sql = "UPDATE {role_assignments}\n                   SET component = {$concat}\n                 WHERE component <> :empty\n                       AND contextid IN (\n                           SELECT id\n                             FROM {context}\n                            WHERE contextlevel < 50)";
        $DB->execute($sql, $params);
        // Main savepoint reached
        upgrade_main_savepoint(true, 2010061900.22);
    }
    if ($oldversion < 2010061900.23) {
        // add proper itemid to role assignments that were added by enrolment plugins
        $sql = "UPDATE {role_assignments}\n                   SET itemid = (SELECT MIN({enrol}.id)\n                                    FROM {enrol}\n                                    JOIN {context} ON ({context}.contextlevel = 50 AND {context}.instanceid = {enrol}.courseid)\n                                   WHERE {role_assignments}.component = " . $DB->sql_concat("'enrol_'", "{enrol}.enrol") . " AND {context}.id = {role_assignments}.contextid)\n                 WHERE component <> 'enrol_manual' AND component LIKE 'enrol_%'";
        $DB->execute($sql);
        // Main savepoint reached
        upgrade_main_savepoint(true, 2010061900.23);
    }
    if ($oldversion < 2010061900.3) {
        // make new list of active enrol plugins - order is important, meta should be always last, manual first
        $enabledplugins = explode(',', $CFG->enrol_plugins_enabled);
        $enabledplugins = array_merge(array('manual', 'guest', 'self', 'cohort'), $enabledplugins);
        if ($DB->record_exists('enrol', array('enrol' => 'meta'))) {
            $enabledplugins[] = 'meta';
        }
        $enabledplugins = array_unique($enabledplugins);
        set_config('enrol_plugins_enabled', implode(',', $enabledplugins));
        // Main savepoint reached
        upgrade_main_savepoint(true, 2010061900.3);
    }
    if ($oldversion < 2010061900.31) {
        // finalise all new enrol settings and cleanup old settings
        // legacy allowunenrol was deprecated in 1.9 already
        unset_config('allwunenroll');
        // obsolete course presets
        unset_config('metacourse', 'moodlecourse');
        unset_config('enrol', 'moodlecourse');
        unset_config('enrollable', 'moodlecourse');
        unset_config('enrolperiod', 'moodlecourse');
        unset_config('expirynotify', 'moodlecourse');
        unset_config('notifystudents', 'moodlecourse');
        unset_config('expirythreshold', 'moodlecourse');
        unset_config('enrolpassword', 'moodlecourse');
        unset_config('guest', 'moodlecourse');
        unset_config('backup_sche_metacourse', 'backup');
        unset_config('lastexpirynotify');
        // hidden course categories now prevent only browsing, courses are accessible if you know the URL and course is visible
        unset_config('allowvisiblecoursesinhiddencategories');
        if (isset($CFG->coursemanager)) {
            set_config('coursecontact', $CFG->coursemanager);
            unset_config('coursemanager');
        }
        // migrate plugin settings - the problem here is we are splitting manual into three different plugins
        if (isset($CFG->enrol_manual_usepasswordpolicy)) {
            set_config('usepasswordpolicy', $CFG->enrol_manual_usepasswordpolicy, 'enrol_guest');
            set_config('usepasswordpolicy', $CFG->enrol_manual_usepasswordpolicy, 'enrol_self');
            set_config('groupenrolmentkeypolicy', $CFG->enrol_manual_usepasswordpolicy);
            unset_config('enrol_manual_usepasswordpolicy');
        }
        if (isset($CFG->enrol_manual_requirekey)) {
            set_config('requirepassword', $CFG->enrol_manual_requirekey, 'enrol_guest');
            set_config('requirepassword', $CFG->enrol_manual_requirekey, 'enrol_self');
            unset_config('enrol_manual_requirekey');
        }
        if (isset($CFG->enrol_manual_showhint)) {
            set_config('showhint', $CFG->enrol_manual_showhint, 'enrol_guest');
            set_config('showhint', $CFG->enrol_manual_showhint, 'enrol_self');
            unset_config('enrol_manual_showhint');
        }
        upgrade_main_savepoint(true, 2010061900.31);
    }
    if ($oldversion < 2010061900.32) {
        // MDL-22797 course completion has to be updated to use new enrol framework, it will not be enabled in final 2.0
        set_config('enableavailability', 0);
        set_config('enablecompletion', 0);
        upgrade_main_savepoint(true, 2010061900.32);
    }
    if ($oldversion < 2010062101) {
        /// Define field huburl to be dropped from course_published
        $table = new xmldb_table('course_published');
        $field = new xmldb_field('hubid');
        /// Conditionally launch drop field huburl
        if ($dbman->field_exists($table, $field)) {
            $dbman->drop_field($table, $field);
        }
        /// Define field huburl to be added to course_published
        $table = new xmldb_table('course_published');
        $field = new xmldb_field('huburl', XMLDB_TYPE_CHAR, '255', null, null, null, null, 'id');
        /// Conditionally launch add field huburl
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2010062101);
    }
    if ($oldversion < 2010070300) {
        //TODO: this is a temporary hack for upgrade from PR3, to be removed later
        // Define field component to be added to files
        $table = new xmldb_table('files');
        $field = new xmldb_field('component', XMLDB_TYPE_CHAR, '100', null, XMLDB_NOTNULL, null, null, 'contextid');
        // Conditionally upgrade from PR3
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
            $index = new xmldb_index('filearea-contextid-itemid', XMLDB_INDEX_NOTUNIQUE, array('filearea', 'contextid', 'itemid'));
            $dbman->drop_index($table, $index);
            $index = new xmldb_index('component-filearea-contextid-itemid', XMLDB_INDEX_NOTUNIQUE, array('component', 'filearea', 'contextid', 'itemid'));
            $dbman->add_index($table, $index);
            // Rename areas as add proper component
            $areas = $DB->get_fieldset_sql("SELECT DISTINCT filearea FROM {files}");
            if ($areas) {
                // fix incorrect itemids
                $DB->execute("UPDATE {files} SET itemid = 0 WHERE filearea = 'category_description'");
                // context identifies instances
                $DB->execute("UPDATE {files} SET itemid = 0 WHERE filearea = 'user_profile'");
                // context identifies instances
                $DB->execute("UPDATE {files} SET itemid = 0 WHERE filearea = 'block_html'");
                // context identifies instances
                foreach ($areas as $area) {
                    // rename areas
                    if ($area === 'course_backup') {
                        $area = 'backup_course';
                    } else {
                        if ($area === 'section_backup') {
                            $area = 'backup_section';
                        } else {
                            if ($area === 'activity_backup') {
                                $area = 'backup_activity';
                            } else {
                                if ($area === 'category_description') {
                                    $area = 'coursecat_description';
                                }
                            }
                        }
                    }
                    if ($area === 'block_html') {
                        $component = 'block_html';
                        $filearea = 'content';
                    } else {
                        list($component, $filearea) = explode('_', $area, 2);
                        // note this is just a hack which guesses plugin from old PRE3 files code, the whole point of adding component is to get rid of this guessing
                        if (file_exists("{$CFG->dirroot}/mod/{$component}/lib.php")) {
                            $component = 'mod_' . $component;
                        }
                    }
                    $DB->execute("UPDATE {files} SET component = :component, filearea = :filearea WHERE filearea = :area", array('component' => $component, 'filearea' => $filearea, 'area' => $area));
                }
                // Update all hashes
                $rs = $DB->get_recordset('files', array());
                foreach ($rs as $file) {
                    upgrade_set_timeout();
                    $pathnamehash = sha1("/{$file->contextid}/{$file->component}/{$file->filearea}/{$file->itemid}" . $file->filepath . $file->filename);
                    $DB->set_field('files', 'pathnamehash', $pathnamehash, array('id' => $file->id));
                }
                $rs->close();
            }
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2010070300);
    }
    if ($oldversion < 2010070500) {
        /// Define field operation to be added to backup_controllers
        $table = new xmldb_table('backup_controllers');
        $field = new xmldb_field('operation', XMLDB_TYPE_CHAR, '20', null, XMLDB_NOTNULL, null, 'backup', 'backupid');
        /// Conditionally launch add field operation
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2010070500);
    }
    if ($oldversion < 2010070501) {
        /// Define field suspended to be added to user
        $table = new xmldb_table('user');
        $field = new xmldb_field('suspended', XMLDB_TYPE_INTEGER, '1', null, XMLDB_NOTNULL, null, '0', 'deleted');
        /// Conditionally launch add field suspended
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2010070501);
    }
    if ($oldversion < 2010070502) {
        /// Define field newitemid to be added to backup_ids_template
        $table = new xmldb_table('backup_ids_template');
        $field = new xmldb_field('newitemid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0', 'itemid');
        /// Conditionally launch add field newitemid
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        /// Define field info to be added to backup_ids_template
        $table = new xmldb_table('backup_ids_template');
        $field = new xmldb_field('info', XMLDB_TYPE_TEXT, 'medium', null, null, null, null, 'parentitemid');
        /// Conditionally launch add field info
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2010070502);
    }
    if ($oldversion < 2010070601) {
        // delete loan calc if not used - it was moved to contrib
        if (!file_exists("{$CFG->dirroot}/blocks/loancalc/version.php")) {
            if (!$DB->record_exists('block_instances', array('blockname' => 'loancalc'))) {
                $DB->delete_records('block', array('name' => 'loancalc'));
            }
        }
        upgrade_main_savepoint(true, 2010070601);
    }
    if ($oldversion < 2010070602) {
        // delete exercise if not used and not installed - now in contrib (do not use adminlib uninstall functions, they may change)
        if (!file_exists("{$CFG->dirroot}/mod/exercise/version.php")) {
            if ($module = $DB->get_record('modules', array('name' => 'exercise'))) {
                if (!$DB->record_exists('course_modules', array('module' => $module->id))) {
                    //purge capabilities
                    $DB->delete_records_select('capabilities', "name LIKE ?", array('mod/exercise:%'));
                    $DB->delete_records_select('role_capabilities', "capability LIKE ?", array('mod/exercise:%'));
                    $tables = array('exercise', 'exercise_submissions', 'exercise_assessments', 'exercise_elements', 'exercise_rubrics', 'exercise_grades');
                    foreach ($tables as $tname) {
                        $table = new xmldb_table($tname);
                        if ($dbman->table_exists($table)) {
                            $dbman->drop_table($table);
                        }
                    }
                    $DB->delete_records('event', array('modulename' => 'exercise'));
                    $DB->delete_records('log', array('module' => 'exercise'));
                    $DB->delete_records('modules', array('name' => 'exercise'));
                }
            }
        }
        upgrade_main_savepoint(true, 2010070602);
    }
    if ($oldversion < 2010070603) {
        // delete journal if not used and not installed - now in contrib (do not use adminlib uninstall functions, they may change)
        if (!file_exists("{$CFG->dirroot}/mod/journal/version.php")) {
            if ($module = $DB->get_record('modules', array('name' => 'journal'))) {
                if (!$DB->record_exists('course_modules', array('module' => $module->id))) {
                    //purge capabilities
                    $DB->delete_records_select('capabilities', "name LIKE ?", array('mod/journal:%'));
                    $DB->delete_records_select('role_capabilities', "capability LIKE ?", array('mod/journal:%'));
                    $tables = array('journal', 'journal_entries');
                    foreach ($tables as $tname) {
                        $table = new xmldb_table($tname);
                        if ($dbman->table_exists($table)) {
                            $dbman->drop_table($table);
                        }
                    }
                    $DB->delete_records('event', array('modulename' => 'journal'));
                    $DB->delete_records('log', array('module' => 'journal'));
                    $DB->delete_records('modules', array('name' => 'journal'));
                    unset_config('journal_initialdisable');
                }
            }
        }
        upgrade_main_savepoint(true, 2010070603);
    }
    if ($oldversion < 2010070604) {
        // delete lams if not used and not installed - now in contrib (do not use adminlib uninstall functions, they may change)
        if (!file_exists("{$CFG->dirroot}/mod/lams/version.php")) {
            if ($module = $DB->get_record('modules', array('name' => 'lams'))) {
                if (!$DB->record_exists('course_modules', array('module' => $module->id))) {
                    //purge capabilities
                    $DB->delete_records_select('capabilities', "name LIKE ?", array('mod/lams:%'));
                    $DB->delete_records_select('role_capabilities', "capability LIKE ?", array('mod/lams:%'));
                    $tables = array('lams', '');
                    foreach ($tables as $tname) {
                        $table = new xmldb_table($tname);
                        if ($dbman->table_exists($table)) {
                            $dbman->drop_table($table);
                        }
                    }
                    $DB->delete_records('event', array('modulename' => 'lams'));
                    $DB->delete_records('log', array('module' => 'lams'));
                    $DB->delete_records('modules', array('name' => 'lams'));
                    unset_config('lams_initialdisable');
                }
            }
        }
        upgrade_main_savepoint(true, 2010070604);
    }
    if ($oldversion < 2010070801) {
        /// Before changing the field, drop dependent indexes
        /// Define index shortname (not unique) to be dropped form course_request
        $table = new xmldb_table('user');
        $index = new xmldb_index('city', XMLDB_INDEX_NOTUNIQUE, array('city'));
        /// Conditionally launch drop index shortname
        if ($dbman->index_exists($table, $index)) {
            $dbman->drop_index($table, $index);
        }
        /// Changing precision of field city on table user to (120)
        $field = new xmldb_field('city', XMLDB_TYPE_CHAR, '120', null, XMLDB_NOTNULL, null, null, 'address');
        /// Launch change of precision for field city
        $dbman->change_field_precision($table, $field);
        /// Conditionally launch add index typeitem_ix
        if (!$dbman->index_exists($table, $index)) {
            $dbman->add_index($table, $index);
        }
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2010070801);
    }
    if ($oldversion < 2010071000) {
        //purge unused editor settings
        unset_config('editorbackgroundcolor');
        unset_config('editorfontfamily');
        unset_config('editorfontsize');
        unset_config('editorkillword');
        unset_config('editorhidebuttons');
        unset_config('editorfontlist');
        upgrade_main_savepoint(true, 2010071000);
    }
    if ($oldversion < 2010071001) {
        // purge obsolete stats settings
        unset_config('statscatdepth');
        upgrade_main_savepoint(true, 2010071001);
    }
    if ($oldversion < 2010071100) {
        // move user icons to file storage pool
        upgrade_migrate_user_icons();
        upgrade_main_savepoint(true, 2010071100);
    }
    if ($oldversion < 2010071101) {
        // move user icons to file storage pool
        upgrade_migrate_group_icons();
        upgrade_main_savepoint(true, 2010071101);
    }
    if ($oldversion < 2010071300) {
        // Define field timecreated to be added to user_enrolments
        $table = new xmldb_table('user_enrolments');
        $field = new xmldb_field('timecreated', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, 0, 'modifierid');
        // Launch add field timecreated
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        // now try to guess the time created
        $sql = "UPDATE {user_enrolments} SET timecreated = timemodified WHERE timecreated = 0";
        $DB->execute($sql);
        $sql = "UPDATE {user_enrolments} SET timecreated = timestart WHERE timestart <> 0 AND timestart < timemodified";
        $DB->execute($sql);
        upgrade_main_savepoint(true, 2010071300);
    }
    if ($oldversion < 2010071700) {
        // Make itemname bigger (160cc) to store component+filearea
        $table = new xmldb_table('backup_ids_template');
        // Define key backupid_itemname_itemid_uk (unique) to be dropped form backup_ids_template
        $key = new xmldb_key('backupid_itemname_itemid_uk', XMLDB_KEY_UNIQUE, array('backupid', 'itemname', 'itemid'));
        // Define index backupid_parentitemid_ix (not unique) to be dropped form backup_ids_template
        $index = new xmldb_index('backupid_parentitemid_ix', XMLDB_INDEX_NOTUNIQUE, array('backupid', 'itemname', 'parentitemid'));
        // Define field itemname to be 160cc
        $field = new xmldb_field('itemname', XMLDB_TYPE_CHAR, '160', null, XMLDB_NOTNULL, null, null, 'backupid');
        // Launch drop key backupid_itemname_itemid_uk
        $dbman->drop_key($table, $key);
        // Conditionally launch drop index backupid_parentitemid_ix
        if ($dbman->index_exists($table, $index)) {
            $dbman->drop_index($table, $index);
        }
        // Changing precision of field itemname on table backup_ids_template to (160)
        $dbman->change_field_precision($table, $field);
        // Launch add key backupid_itemname_itemid_uk
        $dbman->add_key($table, $key);
        // Conditionally launch add index backupid_parentitemid_ix
        if (!$dbman->index_exists($table, $index)) {
            $dbman->add_index($table, $index);
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2010071700);
    }
    if ($oldversion < 2010071701) {
        // Drop legacy core tables that now belongs to mnetservice_enrol plugin
        // Upgrade procedure not needed as the tables are used for caching purposes only
        $tables = array('mnet_enrol_course', 'mnet_enrol_assignments');
        foreach ($tables as $tname) {
            $table = new xmldb_table($tname);
            if ($dbman->table_exists($table)) {
                $dbman->drop_table($table);
            }
        }
        upgrade_main_savepoint(true, 2010071701);
    }
    if ($oldversion < 2010071800) {
        // Define table backup_files_template to be created
        $table = new xmldb_table('backup_files_template');
        // Adding fields to table backup_files_template
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('backupid', XMLDB_TYPE_CHAR, '32', null, XMLDB_NOTNULL, null, null);
        $table->add_field('contextid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('component', XMLDB_TYPE_CHAR, '100', null, XMLDB_NOTNULL, null, null);
        $table->add_field('filearea', XMLDB_TYPE_CHAR, '50', null, XMLDB_NOTNULL, null, null);
        $table->add_field('itemid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('info', XMLDB_TYPE_TEXT, 'medium', null, null, null, null);
        // Adding keys to table backup_files_template
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        // Adding indexes to table backup_files_template
        $table->add_index('backupid_contextid_component_filearea_itemid_ix', XMLDB_INDEX_NOTUNIQUE, array('backupid', 'contextid', 'component', 'filearea', 'itemid'));
        // Conditionally launch create table for backup_files_template
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2010071800);
    }
    if ($oldversion < 2010072300) {
        // Define field capabilities to be added to external_functions
        $table = new xmldb_table('external_functions');
        $field = new xmldb_field('capabilities', XMLDB_TYPE_CHAR, '255', null, null, null, null, 'component');
        // Conditionally launch add field capabilities
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2010072300);
    }
    if ($oldversion < 2010072700) {
        // Define index backupid_itemname_newitemid_ix (not unique) to be added to backup_ids_template
        $table = new xmldb_table('backup_ids_template');
        $index = new xmldb_index('backupid_itemname_newitemid_ix', XMLDB_INDEX_NOTUNIQUE, array('backupid', 'itemname', 'newitemid'));
        // Conditionally launch add index backupid_itemname_newitemid_ix
        if (!$dbman->index_exists($table, $index)) {
            $dbman->add_index($table, $index);
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2010072700);
    }
    if ($oldversion < 2010080303) {
        $rs = $DB->get_recordset_sql('SELECT i.id, i.name, r.type FROM {repository_instances} i, {repository} r WHERE i.typeid = r.id');
        foreach ($rs as $record) {
            upgrade_set_timeout();
            if ($record->name == $record->type) {
                // repository_instances was saving type name as in name field
                // which should be empty, the repository api will try to find
                // instance name from language files
                $DB->set_field('repository_instances', 'name', '');
            }
        }
        $rs->close();
        upgrade_main_savepoint(true, 2010080303);
    }
    if ($oldversion < 2010080305) {
        // first drop all log display actions, we will recreate them automatically later
        $DB->delete_records('log_display', array());
        // Define field component to be added to log_display
        $table = new xmldb_table('log_display');
        $field = new xmldb_field('component', XMLDB_TYPE_CHAR, '100', null, XMLDB_NOTNULL, null, null, 'field');
        // Launch add field component
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2010080305);
    }
    if ($oldversion < 2010080900) {
        /// Define field generalfeedbackformat to be added to question
        $table = new xmldb_table('question');
        $field = new xmldb_field('generalfeedbackformat', XMLDB_TYPE_INTEGER, '2', null, XMLDB_NOTNULL, null, '0', 'generalfeedback');
        /// Conditionally launch add field generalfeedbackformat
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        /// Upgrading the text formats in some question types depends on the
        /// questiontextformat field, but the question type upgrade only runs
        /// after the code below has messed around with the questiontextformat
        /// value. Therefore, we need to create a new column to store the old value.
        /// The column should be dropped in Moodle 2.1.
        /// Define field oldquestiontextformat to be added to question
        $field = new xmldb_field('oldquestiontextformat', XMLDB_TYPE_INTEGER, '2', null, XMLDB_NOTNULL, null, '0', 'generalfeedback');
        /// Conditionally launch add field oldquestiontextformat
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        /// Define field infoformat to be added to question_categories
        $table = new xmldb_table('question_categories');
        $field = new xmldb_field('infoformat', XMLDB_TYPE_INTEGER, '2', null, XMLDB_NOTNULL, null, '0', 'info');
        /// Conditionally launch add field infoformat
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        /// Define field answerformat to be added to question_answers
        $table = new xmldb_table('question_answers');
        $field = new xmldb_field('answerformat', XMLDB_TYPE_INTEGER, '2', null, XMLDB_NOTNULL, null, '0', 'answer');
        /// Conditionally launch add field answerformat
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        /// Define field feedbackformat to be added to question_answers
        $field = new xmldb_field('feedbackformat', XMLDB_TYPE_INTEGER, '2', null, XMLDB_NOTNULL, null, '0', 'feedback');
        /// Conditionally launch add field feedbackformat
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        /// Define field manualcommentformat to be added to question_sessions
        $table = new xmldb_table('question_sessions');
        $field = new xmldb_field('manualcommentformat', XMLDB_TYPE_INTEGER, '2', null, XMLDB_NOTNULL, null, '0', 'manualcomment');
        /// Conditionally launch add field manualcommentformat
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        /// Main savepoint reached
        upgrade_main_savepoint(true, 2010080900);
    }
    /// updating question image
    if ($oldversion < 2010080901) {
        $fs = get_file_storage();
        // Define field image to be dropped from question
        $table = new xmldb_table('question');
        $field = new xmldb_field('image');
        // Conditionally launch drop field image
        if ($dbman->field_exists($table, $field)) {
            $rs = $DB->get_recordset('question');
            $textlib = textlib_get_instance();
            foreach ($rs as $question) {
                // may take awhile
                upgrade_set_timeout();
                if (empty($question->image)) {
                    continue;
                }
                if (!($category = $DB->get_record('question_categories', array('id' => $question->category)))) {
                    continue;
                }
                $categorycontext = get_context_instance_by_id($category->contextid);
                // question files are stored in course level
                // so we have to find course context
                switch ($categorycontext->contextlevel) {
                    case CONTEXT_COURSE:
                        $context = $categorycontext;
                        break;
                    case CONTEXT_MODULE:
                        $courseid = $DB->get_field('course_modules', 'course', array('id' => $categorycontext->instanceid));
                        $context = get_context_instance(CONTEXT_COURSE, $courseid);
                        break;
                    case CONTEXT_COURSECAT:
                    case CONTEXT_SYSTEM:
                        $context = get_system_context();
                        break;
                    default:
                        continue;
                }
                if ($textlib->substr($textlib->strtolower($question->image), 0, 7) == 'http://') {
                    // it is a link, appending to existing question text
                    $question->questiontext .= ' <img src="' . $question->image . '" />';
                    $question->image = '';
                    // update question record
                    $DB->update_record('question', $question);
                } else {
                    $filename = basename($question->image);
                    $filepath = dirname($question->image);
                    if (empty($filepath) or $filepath == '.' or $filepath == '/') {
                        $filepath = '/';
                    } else {
                        // append /
                        $filepath = '/' . trim($filepath, './@#$ ') . '/';
                    }
                    // course files already moved to file pool by previous upgrade block
                    // so we just create copy from course_legacy area
                    if ($image = $fs->get_file($context->id, 'course', 'legacy', 0, $filepath, $filename)) {
                        // move files to file pool
                        $file_record = array('contextid' => $category->contextid, 'component' => 'question', 'filearea' => 'questiontext', 'itemid' => $question->id);
                        $fs->create_file_from_storedfile($file_record, $image);
                        $question->questiontext .= ' <img src="@@PLUGINFILE@@' . $filepath . $filename . '" />';
                        $question->image = '';
                        // update question record
                        $DB->update_record('question', $question);
                    }
                }
            }
            $rs->close();
            $dbman->drop_field($table, $field);
        }
        // Update question_answers.
        // In question_answers.feedback was previously always treated as
        // FORMAT_HTML in calculated, multianswer, multichoice, numerical,
        // shortanswer and truefalse; and
        // FORMAT_MOODLE in essay (despite being edited using the HTML editor)
        // So essay feedback needs to be converted to HTML unless $CFG->texteditors == 'textarea'.
        // For all question types except multichoice,
        // question_answers.answer is FORMAT_PLAIN and does not need to be changed.
        // For multichoice, question_answers.answer is FORMAT_MOODLE, and should
        // stay that way, at least for now.
        $rs = $DB->get_recordset_sql('
                SELECT qa.*, q.qtype
                FROM {question_answers} qa
                JOIN {question} q ON qa.question = q.id');
        foreach ($rs as $record) {
            // may take awhile
            upgrade_set_timeout();
            // Convert question_answers.answer
            if ($record->qtype !== 'multichoice') {
                $record->answerformat = FORMAT_PLAIN;
            } else {
                $record->answerformat = FORMAT_MOODLE;
            }
            // Convert question_answers.feedback
            if ($CFG->texteditors !== 'textarea') {
                if ($record->qtype == 'essay') {
                    $record->feedback = text_to_html($record->feedback, false, false, true);
                }
                $record->feedbackformat = FORMAT_HTML;
            } else {
                $record->feedbackformat = FORMAT_MOODLE;
            }
            $DB->update_record('question_answers', $record);
        }
        $rs->close();
        // In the question table, the code previously used questiontextformat
        // for both question text and general feedback. We need to copy the
        // values into the new column.
        // Then we need to convert FORMAT_MOODLE to FORMAT_HTML (depending on
        // $CFG->texteditors).
        $DB->execute('
                UPDATE {question}
                SET generalfeedbackformat = questiontextformat');
        // Also save the old questiontextformat, so that plugins that need it
        // can access it.
        $DB->execute('
                UPDATE {question}
                SET oldquestiontextformat = questiontextformat');
        // Now covert FORMAT_MOODLE content, if necssary.
        if ($CFG->texteditors !== 'textarea') {
            $rs = $DB->get_recordset('question', array('questiontextformat' => FORMAT_MOODLE));
            foreach ($rs as $record) {
                // may take awhile
                upgrade_set_timeout();
                $record->questiontext = text_to_html($record->questiontext, false, false, true);
                $record->questiontextformat = FORMAT_HTML;
                $record->generalfeedback = text_to_html($record->generalfeedback, false, false, true);
                $record->generalfeedbackformat = FORMAT_HTML;
                $DB->update_record('question', $record);
            }
            $rs->close();
        }
        // In the past, question_sessions.manualcommentformat was always treated
        // as FORMAT_HTML.
        $DB->set_field('question_sessions', 'manualcommentformat', FORMAT_HTML);
        // Main savepoint reached
        upgrade_main_savepoint(true, 2010080901);
    }
    if ($oldversion < 2010082502) {
        // migrate file pool xx/xx/xx directory structure to xx/xx in older 2.0dev installs
        upgrade_simplify_overkill_pool_structure();
        upgrade_main_savepoint(true, 2010082502);
    }
    if ($oldversion < 2010091303) {
        // drop all test tables from old xmldb test suite
        $table = new xmldb_table('testtable');
        if ($dbman->table_exists($table)) {
            $dbman->drop_table($table);
        }
        $table = new xmldb_table('anothertest');
        if ($dbman->table_exists($table)) {
            $dbman->drop_table($table);
        }
        $table = new xmldb_table('newnameforthetable');
        if ($dbman->table_exists($table)) {
            $dbman->drop_table($table);
        }
        upgrade_main_savepoint(true, 2010091303);
    }
    if ($oldversion < 2010091500) {
        // Changing precision of field token on table registration_hubs to (255)
        $table = new xmldb_table('registration_hubs');
        $field = new xmldb_field('token', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, 'id');
        // Launch change of precision for field token
        $dbman->change_field_precision($table, $field);
        // Main savepoint reached
        upgrade_main_savepoint(true, 2010091500);
    }
    if ($oldversion < 2010091501) {
        // This index used to exist in Moodle 1.9 and was never dropped in the upgrade above.
        // Drop it now, or it breaks the following alter column.
        // Define index pagetypepattern (not unique) to be dropped form block_instances
        $table = new xmldb_table('block_instances');
        $index = new xmldb_index('pagetypepattern', XMLDB_INDEX_NOTUNIQUE, array('pagetypepattern'));
        // Conditionally launch drop index pagetypepattern
        if ($dbman->index_exists($table, $index)) {
            $dbman->drop_index($table, $index);
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2010091501);
    }
    if ($oldversion < 2010091502) {
        // Need to drop the index before we can alter the column precision in the next step.
        // Define index parentcontextid-showinsubcontexts-pagetypepattern-subpagepattern (not unique) to be dropped form block_instances
        $table = new xmldb_table('block_instances');
        $index = new xmldb_index('parentcontextid-showinsubcontexts-pagetypepattern-subpagepattern', XMLDB_INDEX_NOTUNIQUE, array('parentcontextid', 'showinsubcontexts', 'pagetypepattern', 'subpagepattern'));
        // Conditionally launch drop index parentcontextid-showinsubcontexts-pagetypepattern-subpagepattern
        if ($dbman->index_exists($table, $index)) {
            $dbman->drop_index($table, $index);
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2010091502);
    }
    if ($oldversion < 2010091503) {
        // Changing precision of field pagetypepattern on table block_instances to (64)
        $table = new xmldb_table('block_instances');
        $field = new xmldb_field('pagetypepattern', XMLDB_TYPE_CHAR, '64', null, XMLDB_NOTNULL, null, null, 'showinsubcontexts');
        // Launch change of precision for field pagetypepattern
        $dbman->change_field_precision($table, $field);
        // Main savepoint reached
        upgrade_main_savepoint(true, 2010091503);
    }
    if ($oldversion < 2010091504) {
        // Now add the index back.
        // Define index parentcontextid-showinsubcontexts-pagetypepattern-subpagepattern (not unique) to be added to block_instances
        $table = new xmldb_table('block_instances');
        $index = new xmldb_index('parentcontextid-showinsubcontexts-pagetypepattern-subpagepattern', XMLDB_INDEX_NOTUNIQUE, array('parentcontextid', 'showinsubcontexts', 'pagetypepattern', 'subpagepattern'));
        // Conditionally launch add index parentcontextid-showinsubcontexts-pagetypepattern-subpagepattern
        if (!$dbman->index_exists($table, $index)) {
            $dbman->add_index($table, $index);
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2010091504);
    }
    if ($oldversion < 2010091505) {
        // drop all events queued from 1.9, unfortunately we can not process them because the serialisation of data changed
        // also the events format was changed....
        $DB->delete_records('events_queue_handlers', array());
        $DB->delete_records('events_queue', array());
        //reset all status fields too
        $DB->set_field('events_handlers', 'status', 0, array());
        upgrade_main_savepoint(true, 2010091505);
    }
    if ($oldversion < 2010091506) {
        // change component string in events_handlers records to new "_" format
        if ($handlers = $DB->get_records('events_handlers')) {
            foreach ($handlers as $handler) {
                $handler->handlermodule = str_replace('/', '_', $handler->handlermodule);
                $DB->update_record('events_handlers', $handler);
            }
        }
        unset($handlers);
        upgrade_main_savepoint(true, 2010091506);
    }
    if ($oldversion < 2010091507) {
        // Define index eventname-handlermodule (unique) to be dropped form events_handlers
        $table = new xmldb_table('events_handlers');
        $index = new xmldb_index('eventname-handlermodule', XMLDB_INDEX_UNIQUE, array('eventname', 'handlermodule'));
        // Conditionally launch drop index eventname-handlermodule
        if ($dbman->index_exists($table, $index)) {
            $dbman->drop_index($table, $index);
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2010091507);
    }
    if ($oldversion < 2010091508) {
        // Rename field handlermodule on table events_handlers to component
        $table = new xmldb_table('events_handlers');
        $field = new xmldb_field('handlermodule', XMLDB_TYPE_CHAR, '166', null, XMLDB_NOTNULL, null, null, 'eventname');
        // Launch rename field handlermodule
        $dbman->rename_field($table, $field, 'component');
        // Main savepoint reached
        upgrade_main_savepoint(true, 2010091508);
    }
    if ($oldversion < 2010091509) {
        // Define index eventname-component (unique) to be added to events_handlers
        $table = new xmldb_table('events_handlers');
        $index = new xmldb_index('eventname-component', XMLDB_INDEX_UNIQUE, array('eventname', 'component'));
        // Conditionally launch add index eventname-component
        if (!$dbman->index_exists($table, $index)) {
            $dbman->add_index($table, $index);
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2010091509);
    }
    if ($oldversion < 2010091510) {
        // Define field internal to be added to events_handlers
        $table = new xmldb_table('events_handlers');
        $field = new xmldb_field('internal', XMLDB_TYPE_INTEGER, '2', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '1', 'status');
        // Conditionally launch add field internal
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2010091510);
    }
    if ($oldversion < 2010091700) {
        // Fix MNet sso_jump_url for Moodle application
        $DB->set_field('mnet_application', 'sso_jump_url', '/auth/mnet/jump.php', array('name' => 'moodle', 'sso_jump_url' => '/auth/mnet/land.php'));
        upgrade_main_savepoint(true, 2010091700);
    }
    if ($oldversion < 2010092000) {
        // drop multiple field again because it was still in install.xml in 2.0dev
        // Define field multiple to be dropped from block
        $table = new xmldb_table('block');
        $field = new xmldb_field('multiple');
        // Conditionally launch drop field multiple
        if ($dbman->field_exists($table, $field)) {
            $dbman->drop_field($table, $field);
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2010092000);
    }
    if ($oldversion < 2010101300) {
        // Fix MDL-24641 : the registered language should not be empty otherwise cron will fail
        $registeredhubs = $DB->get_records('registration_hubs', array('confirmed' => 1));
        if (!empty($registeredhubs)) {
            foreach ($registeredhubs as $hub) {
                $cleanhuburl = clean_param($hub->huburl, PARAM_ALPHANUMEXT);
                $sitelanguage = get_config('hub', 'site_language_' . $cleanhuburl);
                if (empty($sitelanguage)) {
                    set_config('site_language_' . $cleanhuburl, current_language(), 'hub');
                }
            }
        }
        upgrade_main_savepoint(true, 2010101300);
    }
    //MDL-24721 -add hidden column to grade_categories. This was done previously but it wasn't included in
    //install.xml so there are 2.0 sites that are missing it.
    if ($oldversion < 2010101900) {
        $table = new xmldb_table('grade_categories');
        $field = new xmldb_field('hidden', XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, 0, 'timemodified');
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        upgrade_main_savepoint(true, 2010101900);
    }
    // new format of the emoticons setting
    if ($oldversion < 2010102300) {
        unset($CFG->emoticons);
        $DB->delete_records('config', array('name' => 'emoticons'));
        $DB->delete_records('cache_text');
        // changed md5 hash calculation
        upgrade_main_savepoint(true, 2010102300);
    }
    //MDL-24771
    if ($oldversion < 2010102601) {
        $fieldnotification = new xmldb_field('notification', XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, null, null, 0, 'smallmessage');
        $fieldcontexturl = new xmldb_field('contexturl', XMLDB_TYPE_TEXT, 'small', null, null, null, null, 'notification');
        $fieldcontexturlname = new xmldb_field('contexturlname', XMLDB_TYPE_TEXT, 'small', null, null, null, null, 'contexturl');
        $fieldstoadd = array($fieldnotification, $fieldcontexturl, $fieldcontexturlname);
        $tablestomodify = array(new xmldb_table('message'), new xmldb_table('message_read'));
        foreach ($tablestomodify as $table) {
            foreach ($fieldstoadd as $field) {
                if (!$dbman->field_exists($table, $field)) {
                    $dbman->add_field($table, $field);
                }
            }
        }
        upgrade_main_savepoint(true, 2010102601);
    }
    // MDL-24694 needs increasing size of user_preferences.name(varchar[50]) field due to
    // long preferences names for messaging which need components parts within the name
    // eg: 'message_provider_mod_assignment_assignments_loggedin'
    if ($oldversion < 2010102602) {
        // Define index userid-name (unique) to be dropped form user_preferences
        $table = new xmldb_table('user_preferences');
        $index = new xmldb_index('userid-name', XMLDB_INDEX_UNIQUE, array('userid', 'name'));
        // Conditionally launch drop index userid-name
        if ($dbman->index_exists($table, $index)) {
            $dbman->drop_index($table, $index);
        }
        // Changing precision of field name on table user_preferences to (255)
        $field = new xmldb_field('name', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, 'userid');
        // Launch change of precision for field name
        $dbman->change_field_precision($table, $field);
        // Conditionally launch add index userid-name
        if (!$dbman->index_exists($table, $index)) {
            $dbman->add_index($table, $index);
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2010102602);
    }
    if ($oldversion < 2010102700) {
        $table = new xmldb_table('post');
        $field = new xmldb_field('uniquehash', XMLDB_TYPE_CHAR, '128', null, XMLDB_NOTNULL, null, null, 'content');
        // Launch change of precision for field name
        $dbman->change_field_precision($table, $field);
        // Main savepoint reached
        upgrade_main_savepoint(true, 2010102700);
    }
    if ($oldversion < 2010110200) {
        // fix tags itemtype for wiki
        $sql = "UPDATE {tag_instance}\n                SET itemtype = 'wiki_pages'\n                WHERE itemtype = 'wiki_page'";
        $DB->execute($sql);
        echo $OUTPUT->notification('Updating tags itemtype', 'notifysuccess');
        // Main savepoint reached
        upgrade_main_savepoint(true, 2010110200);
    }
    //remove forum_logblocked from config. No longer required after user->emailstop was removed
    if ($oldversion < 2010110500) {
        unset_config('forum_logblocked');
        upgrade_main_savepoint(true, 2010110500);
    }
    if ($oldversion < 2010110800) {
        // convert $CFG->disablecourseajax to $CFG->enablecourseajax
        $disabledcourseajax = get_config('disablecourseajax', 0);
        if ($disabledcourseajax) {
            set_config('enablecourseajax', 0);
        } else {
            set_config('enablecourseajax', 1);
        }
        unset_config('disablecourseajax');
        upgrade_main_savepoint(true, 2010110800);
    }
    if ($oldversion < 2010111000) {
        // Clean up the old scheduled backup settings that are no longer relevant
        update_fix_automated_backup_config();
        upgrade_main_savepoint(true, 2010111000);
    }
    if ($oldversion < 2010111702) {
        // Clean up the old experimental split restore no loger used
        unset_config('experimentalsplitrestore');
        upgrade_main_savepoint(true, 2010111702);
    }
    if ($oldversion < 2010121401) {
        // Define table profiling to be created
        $table = new xmldb_table('profiling');
        // Adding fields to table profiling
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('runid', XMLDB_TYPE_CHAR, '32', null, XMLDB_NOTNULL, null, null);
        $table->add_field('url', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null);
        $table->add_field('data', XMLDB_TYPE_TEXT, 'big', null, XMLDB_NOTNULL, null, null);
        $table->add_field('totalexecutiontime', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('totalcputime', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('totalcalls', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('totalmemory', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('runreference', XMLDB_TYPE_INTEGER, '2', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0');
        $table->add_field('runcomment', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null);
        $table->add_field('timecreated', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        // Adding keys to table profiling
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->add_key('runid_uk', XMLDB_KEY_UNIQUE, array('runid'));
        // Adding indexes to table profiling
        $table->add_index('url_runreference_ix', XMLDB_INDEX_NOTUNIQUE, array('url', 'runreference'));
        $table->add_index('timecreated_runreference_ix', XMLDB_INDEX_NOTUNIQUE, array('timecreated', 'runreference'));
        // Conditionally launch create table for profiling
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2010121401);
    }
    if ($oldversion < 2011011401) {
        $columns = $DB->get_columns('block_instances');
        // Check if we need to fix the default weight column
        if (array_key_exists('defaultweight', $columns) && $columns['defaultweight']->max_length != 10) {
            // Fix discrepancies in the block_instances table after upgrade from 1.9
            $table = new xmldb_table('block_instances');
            // defaultweight is smallint(3) after upgrade should be bigint 10
            // Also fixed in earlier upgrade code
            $field = new xmldb_field('defaultweight', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL, null, null, 'defaultregion');
            if ($dbman->field_exists($table, $field)) {
                $dbman->change_field_type($table, $field);
            }
            // add missing key `blocinst_par_ix` (`parentcontextid`)
            $index = new xmldb_index('parentcontextid', XMLDB_INDEX_NOTUNIQUE, array('parentcontextid'));
            if (!$dbman->index_exists($table, $index)) {
                $dbman->add_index($table, $index);
            }
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2011011401);
    }
    if ($oldversion < 2011011402) {
        // Fix discrepancies in the block_positions table after upgrade from 1.9
        $table = new xmldb_table('block_positions');
        $columns = $DB->get_columns('block_positions');
        // Check if we need to fix the blockinstanceid field
        if (array_key_exists('blockinstanceid', $columns) && empty($columns['blockinstanceid']->unsigned)) {
            // Fix blockinstanceid
            // First remove the indexs on the field
            $indexone = new xmldb_index('blockinstanceid', XMLDB_INDEX_NOTUNIQUE, array('blockinstanceid'));
            $indexall = new xmldb_index('blockinstanceid-contextid-pagetype-subpage', XMLDB_INDEX_UNIQUE, array('blockinstanceid', 'contextid', 'pagetype', 'subpage'));
            if ($dbman->index_exists($table, $indexone)) {
                $dbman->drop_index($table, $indexone);
            }
            if ($dbman->index_exists($table, $indexall)) {
                $dbman->drop_index($table, $indexall);
            }
            // blockinstanceid should be unsigned
            // Also fixed in earlier upgrade code
            $field = new xmldb_field('blockinstanceid', XMLDB_TYPE_INTEGER, 10, XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, 'id');
            if ($dbman->field_exists($table, $field)) {
                $dbman->change_field_unsigned($table, $field);
            }
            // Add the indexs back in
            $dbman->add_index($table, $indexone);
            $dbman->add_index($table, $indexall);
        }
        // Check if the visible field needs fixing.
        if (array_key_exists('visible', $columns) && !empty($columns['visible']->has_default)) {
            // visible shouldn't have a default
            // Also fixed in earlier upgrade code
            $field = new xmldb_field('visible', XMLDB_TYPE_INTEGER, 4, null, XMLDB_NOTNULL, null, null, 'subpage');
            if ($dbman->field_exists($table, $field)) {
                $dbman->change_field_default($table, $field);
            }
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2011011402);
    }
    if ($oldversion < 2011011403) {
        $columns = $DB->get_columns('grade_categories');
        // Check if we need to fix the hidden field
        if (array_key_exists('hidden', $columns) && $columns['hidden']->max_length != 1) {
            // Fix discrepancies in the grade_categories table after upgrade from 1.9
            $table = new xmldb_table('grade_categories');
            // hidden should be tinyint(1)
            // Also fixed in earlier upgrade code
            $field = new xmldb_field('hidden', XMLDB_TYPE_INTEGER, 1, XMLDB_UNSIGNED, XMLDB_NOTNULL, null, 0, 'timemodified');
            if ($dbman->field_exists($table, $field)) {
                $dbman->change_field_precision($table, $field);
            }
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2011011403);
    }
    if ($oldversion < 2011011404) {
        // Fix discrepancies in the message table after upgrade from 1.9
        $columns = $DB->get_columns('message');
        $table = new xmldb_table('message');
        // Check if we need to fix the useridfrom field
        if (array_key_exists('useridfrom', $columns) && empty($columns['useridfrom']->unsigned)) {
            // useridfrom should be unsigned
            $field = new xmldb_field('useridfrom', XMLDB_TYPE_INTEGER, 10, XMLDB_UNSIGNED, XMLDB_NOTNULL, null, 0, 'id');
            $index = new xmldb_index('useridfrom', XMLDB_INDEX_NOTUNIQUE, array('useridfrom'));
            if ($dbman->index_exists($table, $index)) {
                $dbman->drop_index($table, $index);
            }
            if ($dbman->field_exists($table, $field)) {
                $dbman->change_field_unsigned($table, $field);
            }
            $dbman->add_index($table, $index);
        }
        // Check if we need to fix the useridto field
        if (array_key_exists('useridto', $columns) && empty($columns['useridto']->unsigned)) {
            // useridto should be unsigned
            $field = new xmldb_field('useridto', XMLDB_TYPE_INTEGER, 10, XMLDB_UNSIGNED, XMLDB_NOTNULL, null, 0, 'useridfrom');
            $index = new xmldb_index('useridto', XMLDB_INDEX_NOTUNIQUE, array('useridto'));
            if ($dbman->index_exists($table, $index)) {
                $dbman->drop_index($table, $index);
            }
            if ($dbman->field_exists($table, $field)) {
                $dbman->change_field_unsigned($table, $field);
            }
            $dbman->add_index($table, $index);
        }
        // Check if we need to fix the notification field
        if (array_key_exists('notification', $columns) && !empty($columns['notification']->not_null)) {
            // notification should allow null
            // Fixed in earlier upgrade code
            $field = new xmldb_field('notification', XMLDB_TYPE_INTEGER, 1, XMLDB_UNSIGNED, null, null, 0, 'smallmessage');
            if ($dbman->field_exists($table, $field)) {
                $dbman->change_field_notnull($table, $field);
            }
        }
        // Check if we need to fix the contexturl field
        if (array_key_exists('contexturl', $columns) && strpos($columns['contexturl']->type, 'text') === false) {
            // contexturl should be text
            // Fixed in earlier upgrade code
            $field = new xmldb_field('contexturl', XMLDB_TYPE_TEXT, 'small', null, null, null, null, 'notification');
            if ($dbman->field_exists($table, $field)) {
                $dbman->change_field_type($table, $field);
            }
        }
        // Check if we need to fix the contexturl field
        if (array_key_exists('contexturlname', $columns) && strpos($columns['contexturlname']->type, 'text') === false) {
            // contexturlname should be text
            // Fixed in earlier upgrade code
            $field = new xmldb_field('contexturlname', XMLDB_TYPE_TEXT, 'small', null, null, null, null, 'contexturl');
            if ($dbman->field_exists($table, $field)) {
                $dbman->change_field_type($table, $field);
            }
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2011011404);
    }
    if ($oldversion < 2011011405) {
        // Fix discrepancies in the message_read table after upgrade from 1.9
        $columns = $DB->get_columns('message_read');
        $table = new xmldb_table('message_read');
        // Check if we need to fix the useridfrom field
        if (array_key_exists('useridfrom', $columns) && empty($columns['useridfrom']->unsigned)) {
            // useridfrom should be unsigned
            $field = new xmldb_field('useridfrom', XMLDB_TYPE_INTEGER, 10, XMLDB_UNSIGNED, XMLDB_NOTNULL, null, 0, 'id');
            $index = new xmldb_index('useridfrom', XMLDB_INDEX_NOTUNIQUE, array('useridfrom'));
            if ($dbman->index_exists($table, $index)) {
                $dbman->drop_index($table, $index);
            }
            if ($dbman->field_exists($table, $field)) {
                $dbman->change_field_unsigned($table, $field);
            }
            $dbman->add_index($table, $index);
        }
        // Check if we need to fix the useridto field
        if (array_key_exists('useridto', $columns) && empty($columns['useridto']->unsigned)) {
            // useridto should be unsigned
            $field = new xmldb_field('useridto', XMLDB_TYPE_INTEGER, 10, XMLDB_UNSIGNED, XMLDB_NOTNULL, null, 0, 'useridfrom');
            $index = new xmldb_index('useridto', XMLDB_INDEX_NOTUNIQUE, array('useridto'));
            if ($dbman->index_exists($table, $index)) {
                $dbman->drop_index($table, $index);
            }
            if ($dbman->field_exists($table, $field)) {
                $dbman->change_field_unsigned($table, $field);
            }
            $dbman->add_index($table, $index);
        }
        // Check if we need to fix the notification field
        if (array_key_exists('notification', $columns) && !empty($columns['notification']->not_null)) {
            // notification should allow null
            // Fixed in earlier upgrade code
            $field = new xmldb_field('notification', XMLDB_TYPE_INTEGER, 1, XMLDB_UNSIGNED, null, null, 0, 'smallmessage');
            if ($dbman->field_exists($table, $field)) {
                $dbman->change_field_notnull($table, $field);
            }
        }
        // Check if we need to fix the contexturl field
        if (array_key_exists('contexturl', $columns) && strpos($columns['contexturl']->type, 'text') === false) {
            // contexturl should be text
            // Fixed in earlier upgrade code
            $field = new xmldb_field('contexturl', XMLDB_TYPE_TEXT, 'small', null, null, null, null, 'notification');
            if ($dbman->field_exists($table, $field)) {
                $dbman->change_field_type($table, $field);
            }
        }
        // Check if we need to fix the contexturl field
        if (array_key_exists('contexturlname', $columns) && strpos($columns['contexturlname']->type, 'text') === false) {
            // contexturlname should be text
            // Fixed in earlier upgrade code
            $field = new xmldb_field('contexturlname', XMLDB_TYPE_TEXT, 'small', null, null, null, null, 'contexturl');
            if ($dbman->field_exists($table, $field)) {
                $dbman->change_field_type($table, $field);
            }
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2011011405);
    }
    if ($oldversion < 2011011406) {
        // Fix discrepancies in the my_pages table after upgrade from 1.9
        $columns = $DB->get_columns('my_pages');
        $table = new xmldb_table('my_pages');
        // Check if we need to fix the private column
        if (array_key_exists('private', $columns) && $columns['private']->default_value != '1') {
            // private should be default 1
            // Fixed in earlier upgrade code
            $field = new xmldb_field('private', XMLDB_TYPE_INTEGER, 1, XMLDB_UNSIGNED, XMLDB_NOTNULL, null, 1, 'name');
            $index = new xmldb_index('user_idx', XMLDB_INDEX_NOTUNIQUE, array('userid', 'private'));
            if ($dbman->index_exists($table, $index)) {
                $dbman->drop_index($table, $index);
            }
            if ($dbman->field_exists($table, $field)) {
                $dbman->change_field_default($table, $field);
            }
            $dbman->add_index($table, $index);
        }
        // Check if we need to fix the sortorder field
        if (array_key_exists('sortorder', $columns) && !empty($columns['sortorder']->unsigned)) {
            // Sortorder should not be unsigned
            // Fixed in earlier upgrade code
            $field = new xmldb_field('sortorder', XMLDB_TYPE_INTEGER, 6, null, XMLDB_NOTNULL, null, 0, 'private');
            if ($dbman->field_exists($table, $field)) {
                $dbman->change_field_notnull($table, $field);
            }
        }
        upgrade_main_savepoint(true, 2011011406);
    }
    if ($oldversion < 2011011407) {
        // Check if we need to fix post.uniquehash
        $columns = $DB->get_columns('my_pages');
        if (array_key_exists('uniquehash', $columns) && $columns['uniquehash']->max_length != 128) {
            // Fix discrepancies in the post table after upgrade from 1.9
            $table = new xmldb_table('post');
            // Uniquehash should be 128 chars
            // Fixed in earlier upgrade code
            $field = new xmldb_field('uniquehash', XMLDB_TYPE_CHAR, 128, null, XMLDB_NOTNULL, null, null, 'content');
            if ($dbman->field_exists($table, $field)) {
                $dbman->change_field_precision($table, $field);
            }
        }
        upgrade_main_savepoint(true, 2011011407);
    }
    if ($oldversion < 2011011408) {
        // Fix question in the post table after upgrade from 1.9
        $columns = $DB->get_columns('question');
        $table = new xmldb_table('question');
        // Check if we need to fix default grade
        if (array_key_exists('defaultgrade', $columns) && (empty($columns['defaultgrade']->unsigned) || empty($columns['defaultgrade']->not_null) || $columns['defaultgrade']->default_value !== '1.0000000')) {
            // defaultgrade should be unsigned NOT NULL DEFAULT '1.0000000'
            // Fixed in earlier upgrade code
            $field = new xmldb_field('defaultgrade', XMLDB_TYPE_NUMBER, '12, 7', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '1.0000000', 'generalfeedbackformat');
            if ($dbman->field_exists($table, $field)) {
                $dbman->change_field_default($table, $field);
            }
        }
        // Check if we need to fix penalty
        if (array_key_exists('penalty', $columns) && (empty($columns['penalty']->not_null) || $columns['penalty']->default_value !== '0.1000000')) {
            // penalty should be NOT NULL DEFAULT '0.1000000'
            // Fixed in earlier upgrade code
            $field = new xmldb_field('penalty', XMLDB_TYPE_NUMBER, '12, 7', null, XMLDB_NOTNULL, null, '0.1000000', 'defaultgrade');
            if ($dbman->field_exists($table, $field)) {
                $dbman->change_field_default($table, $field);
            }
        }
        upgrade_main_savepoint(true, 2011011408);
    }
    if ($oldversion < 2011011409) {
        // Fix question_answers in the post table after upgrade from 1.9
        $columns = $DB->get_columns('question_answers');
        $table = new xmldb_table('question_answers');
        if (array_key_exists('fraction', $columns) && empty($columns['fraction']->not_null)) {
            // fraction should be NOT NULL DEFAULT '0.0000000',
            // Fixed in earlier upgrade code
            $field = new xmldb_field('fraction', XMLDB_TYPE_NUMBER, '12, 7', null, XMLDB_NOTNULL, null, '0', 'feedback');
            if ($dbman->field_exists($table, $field)) {
                $dbman->change_field_default($table, $field);
            }
        }
        upgrade_main_savepoint(true, 2011011409);
    }
    if ($oldversion < 2011011410) {
        // Fix question_sessions in the post table after upgrade from 1.9
        $columns = $DB->get_columns('question_sessions');
        $table = new xmldb_table('question_sessions');
        // Check if we need to fix sumpenalty
        if (array_key_exists('sumpenalty', $columns) && empty($columns['sumpenalty']->not_null)) {
            // sumpenalty should be NOT NULL DEFAULT '0.0000000',
            // Fixed in earlier upgrade code
            $field = new xmldb_field('sumpenalty', XMLDB_TYPE_NUMBER, '12, 7', null, XMLDB_NOTNULL, null, '0', 'newgraded');
            if ($dbman->field_exists($table, $field)) {
                $dbman->change_field_default($table, $field);
            }
        }
        upgrade_main_savepoint(true, 2011011410);
    }
    if ($oldversion < 2011011411) {
        // Fix question_states in the post table after upgrade from 1.9
        $columns = $DB->get_columns('question_states');
        $table = new xmldb_table('question_states');
        // Check if we need to fix grade
        if (array_key_exists('grade', $columns) && empty($columns['grade']->not_null)) {
            // grade should be NOT NULL DEFAULT '0.0000000',
            // Fixed in earlier upgrade code
            $field = new xmldb_field('grade', XMLDB_TYPE_NUMBER, '12, 7', null, XMLDB_NOTNULL, null, '0', 'event');
            if ($dbman->field_exists($table, $field)) {
                $dbman->change_field_default($table, $field);
            }
        }
        // Check if we need to fix raw_grade
        if (array_key_exists('raw_grade', $columns) && empty($columns['raw_grade']->not_null)) {
            // raw_grade should be NOT NULL DEFAULT '0.0000000',
            // Fixed in earlier upgrade code
            $field = new xmldb_field('raw_grade', XMLDB_TYPE_NUMBER, '12, 7', null, XMLDB_NOTNULL, null, '0', 'grade');
            if ($dbman->field_exists($table, $field)) {
                $dbman->change_field_default($table, $field);
            }
        }
        // Check if we need to fix raw_grade
        if (array_key_exists('penalty', $columns) && empty($columns['penalty']->not_null)) {
            // penalty should be NOT NULL DEFAULT '0.0000000',
            // Fixed in earlier upgrade code
            $field = new xmldb_field('penalty', XMLDB_TYPE_NUMBER, '12, 7', null, XMLDB_NOTNULL, null, '0', 'raw_grade');
            if ($dbman->field_exists($table, $field)) {
                $dbman->change_field_default($table, $field);
            }
        }
        upgrade_main_savepoint(true, 2011011411);
    }
    if ($oldversion < 2011011412) {
        // Fix tag_instance in the post table after upgrade from 1.9
        $columns = $DB->get_columns('tag_instance');
        $table = new xmldb_table('tag_instance');
        // Check if we need to fix tiuserid
        if (array_key_exists('tiuserid', $columns) && !empty($columns['tiuserid']->has_default)) {
            // tiuserid should have no default
            // Fixed in earlier upgrade code
            $field = new xmldb_field('tiuserid', XMLDB_TYPE_INTEGER, 10, XMLDB_UNSIGNED, XMLDB_NOTNULL, null, 0, 'itemid');
            $index = new xmldb_index('itemtype-itemid-tagid-tiuserid', XMLDB_INDEX_UNIQUE, array('itemtype', 'itemid', 'tagid', 'tiuserid'));
            if ($dbman->index_exists($table, $index)) {
                $dbman->drop_index($table, $index);
            }
            if ($dbman->field_exists($table, $field)) {
                $dbman->change_field_default($table, $field);
            }
            $dbman->add_index($table, $index);
        }
        upgrade_main_savepoint(true, 2011011412);
    }
    if ($oldversion < 2011011413) {
        // Fix user_info_field in the post table after upgrade from 1.9
        $table = new xmldb_table('user_info_field');
        // Missing field descriptionformat
        // Fixed in earlier upgrade code
        $field = new xmldb_field('descriptionformat', XMLDB_TYPE_INTEGER, 2, XMLDB_UNSIGNED, XMLDB_NOTNULL, null, 0, 'description');
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        upgrade_main_savepoint(true, 2011011413);
    }
    if ($oldversion < 2011011414) {
        // Drop the adodb_logsql table if it exists... it was never actually used anyway.
        $table = new xmldb_table('adodb_logsql');
        if ($dbman->table_exists($table)) {
            $dbman->drop_table($table);
        }
        upgrade_main_savepoint(true, 2011011414);
    }
    if ($oldversion < 2011011415) {
        //create the rating table indexes if required
        $table = new xmldb_table('rating');
        $index = new xmldb_index('itemid', XMLDB_INDEX_NOTUNIQUE, array('itemid'));
        if (!$dbman->index_exists($table, $index)) {
            $dbman->add_index($table, $index);
            $key = new xmldb_key('contextid', XMLDB_KEY_FOREIGN, array('contextid'), 'context', array('id'));
            $dbman->add_key($table, $key);
            $key = new xmldb_key('userid', XMLDB_KEY_FOREIGN, array('userid'), 'user', array('id'));
            $dbman->add_key($table, $key);
        }
        upgrade_main_savepoint(true, 2011011415);
    }
    if ($oldversion < 2011012400) {
        // Clean up the old progress tracked roles setting, no longer used (replaced by enrolment)
        unset_config('progresstrackedroles');
        upgrade_main_savepoint(true, 2011012400);
    }
    if ($oldversion < 2011012500) {
        $columns = $DB->get_columns('tag_instance');
        $table = new xmldb_table('tag_instance');
        // Drop and recreate index if tiuserid doesn't have default value
        if (array_key_exists('tiuserid', $columns) && empty($columns['tiuserid']->has_default)) {
            // Define index itemtype-itemid-tagid-tiuserid (unique) to be dropped form tag_instance
            $index = new xmldb_index('itemtype-itemid-tagid-tiuserid', XMLDB_INDEX_UNIQUE, array('itemtype', 'itemid', 'tagid', 'tiuserid'));
            // Conditionally launch drop index itemtype-itemid-tagid-tiuserid
            if ($dbman->index_exists($table, $index)) {
                $dbman->drop_index($table, $index);
            }
            // Changing the default of field tiuserid on table tag_instance to 0
            $field = new xmldb_field('tiuserid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0', 'itemid');
            // Launch change of default for field tiuserid
            $dbman->change_field_default($table, $field);
            $index = new xmldb_index('itemtype-itemid-tagid-tiuserid', XMLDB_INDEX_UNIQUE, array('itemtype', 'itemid', 'tagid', 'tiuserid'));
            // Conditionally launch add index itemtype-itemid-tagid-tiuserid
            if (!$dbman->index_exists($table, $index)) {
                $dbman->add_index($table, $index);
            }
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2011012500);
    }
    if ($oldversion < 2011012501) {
        //add the index userfieldidx (not unique) to user_info_data
        $table = new xmldb_table('user_info_data');
        $index = new xmldb_index('userfieldidx', XMLDB_INDEX_NOTUNIQUE, array('userid', 'fieldid'));
        if (!$dbman->index_exists($table, $index)) {
            $dbman->add_index($table, $index);
        }
        upgrade_main_savepoint(true, 2011012501);
    }
    if ($oldversion < 2011020200.01) {
        // Define field targetversion to be added to upgrade_log
        $table = new xmldb_table('upgrade_log');
        $field = new xmldb_field('targetversion', XMLDB_TYPE_CHAR, '100', null, null, null, null, 'version');
        // Conditionally launch add field targetversion
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2011020200.01);
    }
    if ($oldversion < 2011020900.07) {
        $DB->delete_records('course_display', array('display' => 0));
        upgrade_main_savepoint(true, 2011020900.07);
    }
    if ($oldversion < 2011020900.08) {
        // Define field secret to be added to registration_hubs
        $table = new xmldb_table('registration_hubs');
        $field = new xmldb_field('secret', XMLDB_TYPE_CHAR, '255', null, null, null, $CFG->siteidentifier, 'confirmed');
        // Conditionally launch add field secret
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2011020900.08);
    }
    if ($oldversion < 2011022100.01) {
        // hack alert: inject missing version of manual auth_plugin,
        //             we need to do it so that we may use upgrade.php there
        set_config('version', 2011022100, 'auth_manual');
        upgrade_main_savepoint(true, 2011022100.01);
    }
    if ($oldversion < 2011052300.0) {
        $table = new xmldb_table('rating');
        // Add the component field to the ratings table
        upgrade_set_timeout(60 * 20);
        $field = new xmldb_field('component', XMLDB_TYPE_CHAR, '100', null, XMLDB_NOTNULL, null, 'unknown', 'contextid');
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        // Add the ratingarea field to the ratings table
        upgrade_set_timeout(60 * 20);
        $field = new xmldb_field('ratingarea', XMLDB_TYPE_CHAR, '50', null, XMLDB_NOTNULL, null, 'unknown', 'component');
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        upgrade_main_savepoint(true, 2011052300.0);
    }
    if ($oldversion < 2011052300.01) {
        // Define index uniqueuserrating (unique) to be added to rating
        $table = new xmldb_table('rating');
        $index = new xmldb_index('uniqueuserrating', XMLDB_INDEX_NOTUNIQUE, array('component', 'ratingarea', 'contextid', 'itemid'));
        // Conditionally launch add index uniqueuserrating
        if (!$dbman->index_exists($table, $index)) {
            $dbman->add_index($table, $index);
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2011052300.01);
    }
    if ($oldversion < 2011052300.02) {
        // Define index itemid (not unique) to be dropped form rating
        $table = new xmldb_table('rating');
        $index = new xmldb_index('itemid', XMLDB_INDEX_NOTUNIQUE, array('itemid'));
        // Conditionally launch drop index itemid
        if ($dbman->index_exists($table, $index)) {
            $dbman->drop_index($table, $index);
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2011052300.02);
    }
    // Question engine 2 changes (14) start here
    if ($oldversion < 2011060300) {
        // Changing the default of field penalty on table question to 0.3333333
        $table = new xmldb_table('question');
        $field = new xmldb_field('penalty');
        $field->set_attributes(XMLDB_TYPE_NUMBER, '12, 7', null, XMLDB_NOTNULL, null, '0.3333333');
        // Launch change of default for field penalty
        $dbman->change_field_default($table, $field);
        // quiz savepoint reached
        upgrade_main_savepoint(true, 2011060300);
    }
    if ($oldversion < 2011060301) {
        // Rename field defaultgrade on table question to defaultmark
        $table = new xmldb_table('question');
        $field = new xmldb_field('defaultgrade');
        $field->set_attributes(XMLDB_TYPE_NUMBER, '12, 7', null, XMLDB_NOTNULL, null, '1');
        // Launch rename field defaultmark
        if ($dbman->field_exists($table, $field)) {
            $dbman->rename_field($table, $field, 'defaultmark');
        }
        // quiz savepoint reached
        upgrade_main_savepoint(true, 2011060301);
    }
    if ($oldversion < 2011060302) {
        // Rename the question_attempts table to question_usages.
        $table = new xmldb_table('question_attempts');
        if (!$dbman->table_exists('question_usages')) {
            $dbman->rename_table($table, 'question_usages');
        }
        // quiz savepoint reached
        upgrade_main_savepoint(true, 2011060302);
    }
    if ($oldversion < 2011060303) {
        // Rename the modulename field to component ...
        $table = new xmldb_table('question_usages');
        $field = new xmldb_field('modulename');
        $field->set_attributes(XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, 'contextid');
        if ($dbman->field_exists($table, $field)) {
            $dbman->rename_field($table, $field, 'component');
        }
        // ... and update its contents.
        $DB->set_field('question_usages', 'component', 'mod_quiz', array('component' => 'quiz'));
        // Add the contextid field.
        $field = new xmldb_field('contextid');
        $field->set_attributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null, 'id');
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
            // And populate it.
            $quizmoduleid = $DB->get_field('modules', 'id', array('name' => 'quiz'));
            $DB->execute("\n                UPDATE {question_usages} SET contextid = (\n                    SELECT ctx.id\n                    FROM {context} ctx\n                    JOIN {course_modules} cm ON cm.id = ctx.instanceid AND cm.module = {$quizmoduleid}\n                    JOIN {quiz_attempts} quiza ON quiza.quiz = cm.instance\n                    WHERE ctx.contextlevel = " . CONTEXT_MODULE . "\n                    AND quiza.uniqueid = {question_usages}.id\n                )\n            ");
            // It seems that it is possible, in old versions of Moodle, for a
            // quiz_attempt to be deleted while the question_attempt remains.
            // In that situation we still get NULLs left in the table, which
            // causes the upgrade to break at the next step. To avoid breakage,
            // without risking dataloss, we just replace all NULLs with 0 here.
            $DB->set_field_select('question_usages', 'contextid', 0, 'contextid IS NULL');
            // Then make it NOT NULL.
            $field = new xmldb_field('contextid');
            $field->set_attributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, 'id');
            $dbman->change_field_notnull($table, $field);
        }
        // Add the preferredbehaviour column. Populate it with a dummy value
        // for now. We will fill in the appropriate behaviour name when
        // updating all the rest of the attempt data.
        $field = new xmldb_field('preferredbehaviour');
        if (!$dbman->field_exists($table, $field)) {
            $field->set_attributes(XMLDB_TYPE_CHAR, '32', null, XMLDB_NOTNULL, null, 'to_be_set_later', 'component');
            $dbman->add_field($table, $field);
            // Then remove the default value, now the column is populated.
            $field = new xmldb_field('preferredbehaviour');
            $field->set_attributes(XMLDB_TYPE_CHAR, '32', null, XMLDB_NOTNULL, null, null, 'component');
            $dbman->change_field_default($table, $field);
        }
        // quiz savepoint reached
        upgrade_main_savepoint(true, 2011060303);
    }
    if ($oldversion < 2011060304) {
        // Define key contextid (foreign) to be added to question_usages
        $table = new xmldb_table('question_usages');
        $key = new XMLDBKey('contextid');
        $key->set_attributes(XMLDB_KEY_FOREIGN, array('contextid'), 'context', array('id'));
        // Launch add key contextid
        $dbman->add_key($table, $key);
        // quiz savepoint reached
        upgrade_main_savepoint(true, 2011060304);
    }
    if ($oldversion < 2011060305) {
        // Changing precision of field component on table question_usages to (255)
        // This was missed during the upgrade from old versions.
        $table = new xmldb_table('question_usages');
        $field = new xmldb_field('component');
        $field->set_attributes(XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, 'contextid');
        // Launch change of precision for field component
        $dbman->change_field_precision($table, $field);
        // quiz savepoint reached
        upgrade_main_savepoint(true, 2011060305);
    }
    if ($oldversion < 2011060306) {
        // Define table question_attempts to be created
        $table = new xmldb_table('question_attempts');
        if (!$dbman->table_exists($table)) {
            // Adding fields to table question_attempts
            $table->add_field('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
            $table->add_field('questionusageid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
            $table->add_field('slot', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
            $table->add_field('behaviour', XMLDB_TYPE_CHAR, '32', null, XMLDB_NOTNULL, null, null);
            $table->add_field('questionid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
            $table->add_field('maxmark', XMLDB_TYPE_NUMBER, '12, 7', null, XMLDB_NOTNULL, null, null);
            $table->add_field('minfraction', XMLDB_TYPE_NUMBER, '12, 7', null, XMLDB_NOTNULL, null, null);
            $table->add_field('flagged', XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0');
            $table->add_field('questionsummary', XMLDB_TYPE_TEXT, 'small', null, null, null, null);
            $table->add_field('rightanswer', XMLDB_TYPE_TEXT, 'small', null, null, null, null);
            $table->add_field('responsesummary', XMLDB_TYPE_TEXT, 'small', null, null, null, null);
            $table->add_field('timemodified', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
            // Adding keys to table question_attempts
            $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
            $table->add_key('questionid', XMLDB_KEY_FOREIGN, array('questionid'), 'question', array('id'));
            $table->add_key('questionusageid', XMLDB_KEY_FOREIGN, array('questionusageid'), 'question_usages', array('id'));
            // Adding indexes to table question_attempts
            $table->add_index('questionusageid-slot', XMLDB_INDEX_UNIQUE, array('questionusageid', 'slot'));
            // Launch create table for question_attempts
            $dbman->create_table($table);
        }
        // quiz savepoint reached
        upgrade_main_savepoint(true, 2011060306);
    }
    if ($oldversion < 2011060307) {
        // Define table question_attempt_steps to be created
        $table = new xmldb_table('question_attempt_steps');
        if (!$dbman->table_exists($table)) {
            // Adding fields to table question_attempt_steps
            $table->add_field('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
            $table->add_field('questionattemptid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
            $table->add_field('sequencenumber', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
            $table->add_field('state', XMLDB_TYPE_CHAR, '13', null, XMLDB_NOTNULL, null, null);
            $table->add_field('fraction', XMLDB_TYPE_NUMBER, '12, 7', null, null, null, null);
            $table->add_field('timecreated', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
            $table->add_field('userid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null);
            // Adding keys to table question_attempt_steps
            $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
            $table->add_key('questionattemptid', XMLDB_KEY_FOREIGN, array('questionattemptid'), 'question_attempts_new', array('id'));
            $table->add_key('userid', XMLDB_KEY_FOREIGN, array('userid'), 'user', array('id'));
            // Adding indexes to table question_attempt_steps
            $table->add_index('questionattemptid-sequencenumber', XMLDB_INDEX_UNIQUE, array('questionattemptid', 'sequencenumber'));
            // Launch create table for question_attempt_steps
            $dbman->create_table($table);
        }
        // quiz savepoint reached
        upgrade_main_savepoint(true, 2011060307);
    }
    if ($oldversion < 2011060308) {
        // Define table question_attempt_step_data to be created
        $table = new xmldb_table('question_attempt_step_data');
        if (!$dbman->table_exists($table)) {
            // Adding fields to table question_attempt_step_data
            $table->add_field('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
            $table->add_field('attemptstepid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
            $table->add_field('name', XMLDB_TYPE_CHAR, '32', null, XMLDB_NOTNULL, null, null);
            $table->add_field('value', XMLDB_TYPE_TEXT, 'small', null, null, null, null);
            // Adding keys to table question_attempt_step_data
            $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
            $table->add_key('attemptstepid', XMLDB_KEY_FOREIGN, array('attemptstepid'), 'question_attempt_steps', array('id'));
            // Adding indexes to table question_attempt_step_data
            $table->add_index('attemptstepid-name', XMLDB_INDEX_UNIQUE, array('attemptstepid', 'name'));
            // Launch create table for question_attempt_step_data
            $dbman->create_table($table);
        }
        // quiz savepoint reached
        upgrade_main_savepoint(true, 2011060308);
    }
    if ($oldversion < 2011060309) {
        // Define table question_hints to be created
        $table = new xmldb_table('question_hints');
        // Adding fields to table question_hints
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('questionid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('hint', XMLDB_TYPE_TEXT, 'small', null, XMLDB_NOTNULL, null, null);
        $table->add_field('hintformat', XMLDB_TYPE_INTEGER, '4', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0');
        $table->add_field('shownumcorrect', XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, null, null, null);
        $table->add_field('clearwrong', XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, null, null, null);
        $table->add_field('options', XMLDB_TYPE_CHAR, '255', null, null, null, null);
        // Adding keys to table question_hints
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->add_key('questionid', XMLDB_KEY_FOREIGN, array('questionid'), 'question', array('id'));
        // Conditionally launch create table for question_hints
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        // quiz savepoint reached
        upgrade_main_savepoint(true, 2011060309);
    }
    if ($oldversion < 2011060310) {
        // In the past, question_answer fractions were stored with rather
        // sloppy rounding. Now update them to the new standard of 7 d.p.
        $changes = array('-0.66666' => '-0.6666667', '-0.33333' => '-0.3333333', '-0.16666' => '-0.1666667', '-0.142857' => '-0.1428571', '0.11111' => '0.1111111', '0.142857' => '0.1428571', '0.16666' => '0.1666667', '0.33333' => '0.3333333', '0.333333' => '0.3333333', '0.66666' => '0.6666667');
        foreach ($changes as $from => $to) {
            $DB->set_field('question_answers', 'fraction', $to, array('fraction' => $from));
        }
        // quiz savepoint reached
        upgrade_main_savepoint(true, 2011060310);
    }
    if ($oldversion < 2011060311) {
        // In the past, question penalties were stored with rather
        // sloppy rounding. Now update them to the new standard of 7 d.p.
        $DB->set_field('question', 'penalty', 0.3333333, array('penalty' => 33.3));
        $DB->set_field_select('question', 'penalty', 0.3333333, 'penalty >= 0.33 AND penalty <= 0.34');
        $DB->set_field_select('question', 'penalty', 0.6666666999999999, 'penalty >= 0.66 AND penalty <= 0.67');
        $DB->set_field_select('question', 'penalty', 1, 'penalty > 1');
        // quiz savepoint reached
        upgrade_main_savepoint(true, 2011060311);
    }
    if ($oldversion < 2011060312) {
        // Define field hintformat to be added to question_hints table.
        $table = new xmldb_table('question_hints');
        $field = new xmldb_field('hintformat', XMLDB_TYPE_INTEGER, '4', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0');
        // Conditionally launch add field partiallycorrectfeedbackformat
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        upgrade_main_savepoint(true, 2011060312);
    }
    if ($oldversion < 2011060313) {
        // Define field variant to be added to question_attempts
        $table = new xmldb_table('question_attempts');
        $field = new xmldb_field('variant', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, 1, 'questionid');
        // Launch add field component
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2011060313);
    }
    // Question engine 2 changes (14) end here
    if ($oldversion < 2011060500) {
        // Define index uniqueuserrating (not unique) to be dropped from rating
        $table = new xmldb_table('rating');
        $index = new xmldb_index('uniqueuserrating', XMLDB_INDEX_NOTUNIQUE, array('component', 'ratingarea', 'contextid', 'itemid'));
        // Drop dependent index before changing fields specs
        if ($dbman->index_exists($table, $index)) {
            $dbman->drop_index($table, $index);
        }
        // Changing the default of field component on table rating to drop it
        $field = new xmldb_field('component', XMLDB_TYPE_CHAR, '100', null, XMLDB_NOTNULL, null, null, 'contextid');
        // Launch change of default for field component
        $dbman->change_field_default($table, $field);
        // Changing the default of field ratingarea on table rating to drop it
        $field = new xmldb_field('ratingarea', XMLDB_TYPE_CHAR, '50', null, XMLDB_NOTNULL, null, null, 'component');
        // Launch change of default for field ratingarea
        $dbman->change_field_default($table, $field);
        // Add dependent index back
        if (!$dbman->index_exists($table, $index)) {
            $dbman->add_index($table, $index);
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2011060500);
    }
    if ($oldversion < 2011060800) {
        // Add enabled field to message_processors
        $table = new xmldb_table('message_processors');
        $field = new xmldb_field('enabled');
        $field->set_attributes(XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '1', 'name');
        // Launch add field addition
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        // Populate default messaging settings
        upgrade_populate_default_messaging_prefs();
        upgrade_main_savepoint(true, 2011060800);
    }
    if ($oldversion < 2011060800.01) {
        //TODO: put the right latest version
        // Define field shortname to be added to external_services
        $table = new xmldb_table('external_services');
        $field = new xmldb_field('shortname', XMLDB_TYPE_CHAR, '255', null, null, null, null, 'timemodified');
        // Conditionally launch add field shortname
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        // Main savepoint reached
        upgrade_main_savepoint(true, 2011060800.01);
    }
    if ($oldversion < 2011062000.01) {
        // Changing sign of field minfraction on table question_attempts to signed
        $table = new xmldb_table('question_attempts');
        $field = new xmldb_field('minfraction', XMLDB_TYPE_NUMBER, '12, 7', null, XMLDB_NOTNULL, null, null, 'maxmark');
        // Launch change of sign for field minfraction
        $dbman->change_field_unsigned($table, $field);
        // Main savepoint reached
        upgrade_main_savepoint(true, 2011062000.01);
    }
    // Signed fixes - MDL-28032
    if ($oldversion < 2011062400.02) {
        // Changing sign of field defaultmark on table question to unsigned
        $table = new xmldb_table('question');
        $field = new xmldb_field('defaultmark', XMLDB_TYPE_NUMBER, '12, 7', null, XMLDB_NOTNULL, null, '1', 'generalfeedbackformat');
        // Launch change of sign for field defaultmark
        $dbman->change_field_unsigned($table, $field);
        // Main savepoint reached
        upgrade_main_savepoint(true, 2011062400.02);
    }
    if ($oldversion < 2011062400.03) {
        // Completion system has issue in which possible duplicate rows are
        // added to the course_modules_completion table. This change deletes
        // the older version of duplicate rows and replaces an index with a
        // unique one so it won't happen again.
        // This would have been a single query but because MySQL is a PoS
        // and can't do subqueries in DELETE, I have made it into two. The
        // system is unlikely to run out of memory as only IDs are stored in
        // the array.
        // Find all rows cmc1 where there is another row cmc2 with the
        // same user id and the same coursemoduleid, but a higher id (=> newer,
        // meaning that cmc1 is an older row).
        $rs = $DB->get_recordset_sql("\nSELECT DISTINCT\n    cmc1.id\nFROM\n    {course_modules_completion} cmc1\n    JOIN {course_modules_completion} cmc2\n        ON cmc2.userid = cmc1.userid\n        AND cmc2.coursemoduleid = cmc1.coursemoduleid\n        AND cmc2.id > cmc1.id");
        $deleteids = array();
        foreach ($rs as $row) {
            $deleteids[] = $row->id;
        }
        $rs->close();
        // Note: SELECT part performance tested on table with ~7m
        // rows of which ~15k match, only took 30 seconds so probably okay.
        // Delete all those rows
        $DB->delete_records_list('course_modules_completion', 'id', $deleteids);
        // Define index userid (not unique) to be dropped form course_modules_completion
        $table = new xmldb_table('course_modules_completion');
        $index = new xmldb_index('userid', XMLDB_INDEX_NOTUNIQUE, array('userid'));
        // Conditionally launch drop index userid
        if ($dbman->index_exists($table, $index)) {
            $dbman->drop_index($table, $index);
        }
        // Define index userid-coursemoduleid (unique) to be added to course_modules_completion
        $index = new xmldb_index('userid-coursemoduleid', XMLDB_INDEX_UNIQUE, array('userid', 'coursemoduleid'));
        // Conditionally launch add index userid-coursemoduleid
        if (!$dbman->index_exists($table, $index)) {
            $dbman->add_index($table, $index);
        }
        upgrade_main_savepoint(true, 2011062400.03);
    }
    // Moodle v2.1.0 release upgrade line
    // Put any upgrade step following this
    return true;
}
Exemplo n.º 20
0
/**
 * Update all grades in gradebook.
 */
function quiz_upgrade_grades() {
    global $DB;

    $sql = "SELECT COUNT('x')
              FROM {quiz} a, {course_modules} cm, {modules} m
             WHERE m.name='quiz' AND m.id=cm.module AND cm.instance=a.id";
    $count = $DB->count_records_sql($sql);

    $sql = "SELECT a.*, cm.idnumber AS cmidnumber, a.course AS courseid
              FROM {quiz} a, {course_modules} cm, {modules} m
             WHERE m.name='quiz' AND m.id=cm.module AND cm.instance=a.id";
    $rs = $DB->get_recordset_sql($sql);
    if ($rs->valid()) {
        $pbar = new progress_bar('quizupgradegrades', 500, true);
        $i=0;
        foreach ($rs as $quiz) {
            $i++;
            upgrade_set_timeout(60*5); // Set up timeout, may also abort execution.
            quiz_update_grades($quiz, 0, false);
            $pbar->update($i, $count, "Updating Quiz grades ($i/$count).");
        }
    }
    $rs->close();
}
Exemplo n.º 21
0
/**
 * @global moodle_database $DB
 * @param int $oldversion
 * @return bool
 */
function xmldb_scorm_upgrade($oldversion)
{
    global $CFG, $DB;
    $dbman = $DB->get_manager();
    // Moodle v2.2.0 release upgrade line
    // Put any upgrade step following this
    if ($oldversion < 2012032100) {
        unset_config('updatetime', 'scorm');
        upgrade_mod_savepoint(true, 2012032100, 'scorm');
    }
    // Adding completion fields to scorm table
    if ($oldversion < 2012032101) {
        $table = new xmldb_table('scorm');
        $field = new xmldb_field('completionstatusrequired', XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, null, null, null, 'timemodified');
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        $field = new xmldb_field('completionscorerequired', XMLDB_TYPE_INTEGER, '2', XMLDB_UNSIGNED, null, null, null, 'completionstatusrequired');
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        upgrade_mod_savepoint(true, 2012032101, 'scorm');
    }
    // Moodle v2.3.0 release upgrade line
    // Put any upgrade step following this
    //rename config var from maxattempts to maxattempt
    if ($oldversion < 2012061701) {
        $maxattempts = get_config('scorm', 'maxattempts');
        $maxattempts_adv = get_config('scorm', 'maxattempts_adv');
        set_config('maxattempt', $maxattempts, 'scorm');
        set_config('maxattempt_adv', $maxattempts_adv, 'scorm');
        unset_config('maxattempts', 'scorm');
        //remove old setting.
        unset_config('maxattempts_adv', 'scorm');
        //remove old setting.
        upgrade_mod_savepoint(true, 2012061701, 'scorm');
    }
    // Moodle v2.4.0 release upgrade line
    // Put any upgrade step following this.
    // Moodle v2.5.0 release upgrade line.
    // Put any upgrade step following this.
    // Remove old imsrepository type - convert any existing records to external type to help prevent major errors.
    if ($oldversion < 2013081301) {
        require_once $CFG->dirroot . '/mod/scorm/lib.php';
        $scorms = $DB->get_recordset('scorm', array('scormtype' => 'imsrepository'));
        foreach ($scorms as $scorm) {
            $scorm->scormtype = SCORM_TYPE_EXTERNAL;
            if (!empty($CFG->repository)) {
                // Fix path to imsmanifest if $CFG->repository is set.
                $scorm->reference = $CFG->repository . substr($scorm->reference, 1) . '/imsmanifest.xml';
                $scorm->sha1hash = sha1($scorm->reference);
            }
            $scorm->revision++;
            $DB->update_record('scorm', $scorm);
        }
        upgrade_mod_savepoint(true, 2013081301, 'scorm');
    }
    // Fix AICC parent/child relationships (MDL-37394).
    if ($oldversion < 2013081302) {
        // Get all AICC packages.
        $aiccpackages = $DB->get_recordset('scorm', array('version' => 'AICC'), '', 'id');
        foreach ($aiccpackages as $aicc) {
            $sql = "UPDATE {scorm_scoes}\n                       SET parent = organization\n                     WHERE scorm = ?\n                       AND " . $DB->sql_isempty('scorm_scoes', 'manifest', false, false) . "\n                       AND " . $DB->sql_isnotempty('scorm_scoes', 'organization', false, false) . "\n                       AND parent = '/'";
            $DB->execute($sql, array($aicc->id));
        }
        $aiccpackages->close();
        upgrade_mod_savepoint(true, 2013081302, 'scorm');
    }
    if ($oldversion < 2013081303) {
        // Define field sortorder to be added to scorm_scoes.
        $table = new xmldb_table('scorm_scoes');
        $field = new xmldb_field('sortorder', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0', 'title');
        // Conditionally launch add field sortorder.
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        // Scorm savepoint reached.
        upgrade_mod_savepoint(true, 2013081303, 'scorm');
    }
    if ($oldversion < 2013090100) {
        global $CFG;
        $table = new xmldb_table('scorm');
        $field = new xmldb_field('nav', XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, true, null, 1, 'hidetoc');
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        $field = new xmldb_field('navpositionleft', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, -100, 'nav');
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        $field = new xmldb_field('navpositiontop', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, -100, 'navpositionleft');
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        $field = new xmldb_field('hidenav');
        if ($dbman->field_exists($table, $field)) {
            // Update nav setting to show floating navigation buttons under TOC.
            $DB->set_field('scorm', 'nav', 2, array('hidenav' => 0));
            $DB->set_field('scorm', 'navpositionleft', 215, array('hidenav' => 2));
            $DB->set_field('scorm', 'navpositiontop', 300, array('hidenav' => 2));
            // Update nav setting to disable navigation buttons.
            $DB->set_field('scorm', 'nav', 0, array('hidenav' => 1));
            // Drop hidenav field.
            $dbman->drop_field($table, $field);
        }
        $hide = get_config('scorm', 'hidenav');
        unset_config('hidenav', 'scorm');
        if (!empty($hide)) {
            require_once $CFG->dirroot . '/mod/scorm/lib.php';
            set_config('nav', SCORM_NAV_DISABLED, 'scorm');
        }
        $hideadv = get_config('scorm', 'hidenav_adv');
        unset_config('hidenav_adv', 'scorm');
        set_config('nav_adv', $hideadv, 'scorm');
        upgrade_mod_savepoint(true, 2013090100, 'scorm');
    }
    // Moodle v2.6.0 release upgrade line.
    // Put any upgrade step following this.
    if ($oldversion < 2013110501) {
        // Fix invalid $scorm->launch records.
        // Get all scorms that have a launch value that references a sco from a different scorm.
        $sql = "SELECT s.*\n                 FROM {scorm} s\n            LEFT JOIN {scorm_scoes} c ON s.launch = c.id\n                WHERE c.id IS null OR s.id <> c.scorm";
        $scorms = $DB->get_recordset_sql($sql);
        foreach ($scorms as $scorm) {
            // Find the first launchable sco for this SCORM.
            // This scorm has an invalid launch param - we need to calculate it and get the first launchable sco.
            $sqlselect = 'scorm = ? AND ' . $DB->sql_isnotempty('scorm_scoes', 'launch', false, true);
            // We use get_records here as we need to pass a limit in the query that works cross db.
            $scoes = $DB->get_records_select('scorm_scoes', $sqlselect, array($scorm->id), 'sortorder', 'id', 0, 1);
            if (!empty($scoes)) {
                $sco = reset($scoes);
                // We only care about the first record - the above query only returns one.
                $scorm->launch = $sco->id;
                $DB->update_record('scorm', $scorm);
            }
        }
        $scorms->close();
        upgrade_mod_savepoint(true, 2013110501, 'scorm');
    }
    if ($oldversion < 2014031700) {
        // Define field displayactivityname to be added to scorm.
        $table = new xmldb_table('scorm');
        $field = new xmldb_field('displayactivityname', XMLDB_TYPE_INTEGER, '4', null, XMLDB_NOTNULL, null, '1', 'completionscorerequired');
        // Conditionally launch add field displayactivityname.
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        // Scorm savepoint reached.
        upgrade_mod_savepoint(true, 2014031700, 'scorm');
    }
    if ($oldversion < 2014040200) {
        // Fix invalid $scorm->launch records that launch an org sco instead of a real sco.
        $sql = "SELECT s.*, c.identifier\n                 FROM {scorm} s\n            LEFT JOIN {scorm_scoes} c ON s.launch = c.id\n                WHERE " . $DB->sql_isempty('scorm_scoes', 'c.launch', false, true);
        $scorms = $DB->get_recordset_sql($sql);
        foreach ($scorms as $scorm) {
            upgrade_set_timeout(60);
            // Increase execution time just in case. (60 sec is minimum but prob excessive here).
            $originallaunch = $scorm->launch;
            // Find the first sco using the current identifier as it's parent
            // we use get records here as we need to pass a limit in the query that works cross db.
            $firstsco = $DB->get_records('scorm_scoes', array('scorm' => $scorm->id, 'parent' => $scorm->identifier), 'sortorder', '*', 0, 1);
            if (!empty($firstsco)) {
                $firstsco = reset($firstsco);
            }
            if (!empty($firstsco->launch)) {
                // Usual behavior - this is a valid sco with a launch param so use it.
                $scorm->launch = $firstsco->id;
            } else {
                // The firstsco found is not launchable - find the first launchable sco after this sco.
                $sqlselect = 'scorm = ? AND sortorder > ? AND ' . $DB->sql_isnotempty('scorm_scoes', 'launch', false, true);
                // We use get_records here as we need to pass a limit in the query that works cross db.
                $scoes = $DB->get_records_select('scorm_scoes', $sqlselect, array($scorm->id, $firstsco->sortorder), 'sortorder', 'id', 0, 1);
                if (!empty($scoes)) {
                    $sco = reset($scoes);
                    // We only care about the first record - the above query only returns one.
                    $scorm->launch = $sco->id;
                } else {
                    // This is an invalid package - it has a default org that doesn't contain a launchable sco.
                    // Check for any valid sco with a launch param.
                    $sqlselect = 'scorm = ? AND ' . $DB->sql_isnotempty('scorm_scoes', 'launch', false, true);
                    // We use get_records here as we need to pass a limit in the query that works cross db.
                    $scoes = $DB->get_records_select('scorm_scoes', $sqlselect, array($scorm->id), 'sortorder', 'id', 0, 1);
                    if (!empty($scoes)) {
                        $sco = reset($scoes);
                        // We only care about the first record - the above query only returns one.
                        $scorm->launch = $sco->id;
                    }
                }
            }
            if ($originallaunch != $scorm->launch) {
                $DB->update_record('scorm', $scorm);
            }
        }
        $scorms->close();
        upgrade_mod_savepoint(true, 2014040200, 'scorm');
    }
    // Moodle v2.7.0 release upgrade line.
    // Put any upgrade step following this.
    if ($oldversion < 2014072500) {
        // Define field autocommit to be added to scorm.
        $table = new xmldb_table('scorm');
        $field = new xmldb_field('autocommit', XMLDB_TYPE_INTEGER, '1', null, XMLDB_NOTNULL, null, '0', 'displayactivityname');
        // Conditionally launch add field autocommit.
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        // Scorm savepoint reached.
        upgrade_mod_savepoint(true, 2014072500, 'scorm');
    }
    // Moodle v2.8.0 release upgrade line.
    // Put any upgrade step following this.
    if ($oldversion < 2015031800) {
        // Check to see if this site has any AICC packages - if so set the aiccuserid to pass the username
        // so that the data remains consistent with existing packages.
        $alreadyset = $DB->record_exists('config_plugins', array('plugin' => 'scorm', 'name' => 'aiccuserid'));
        if (!$alreadyset) {
            $hasaicc = $DB->record_exists('scorm', array('version' => 'AICC'));
            if ($hasaicc) {
                set_config('aiccuserid', 0, 'scorm');
            } else {
                // We set the config value to hide this from upgrades as most users will not know what AICC is anyway.
                set_config('aiccuserid', 1, 'scorm');
            }
        }
        // Scorm savepoint reached.
        upgrade_mod_savepoint(true, 2015031800, 'scorm');
    }
    // Moodle v2.9.0 release upgrade line.
    // Put any upgrade step following this.
    if ($oldversion < 2015051102) {
        $table = new xmldb_table('scorm');
        // Changing the default of field forcecompleted on table scorm to 0.
        $field = new xmldb_field('forcecompleted', XMLDB_TYPE_INTEGER, '1', null, XMLDB_NOTNULL, null, '0', 'maxattempt');
        // Launch change of default for field forcecompleted.
        $dbman->change_field_default($table, $field);
        // Changing the default of field displaycoursestructure on table scorm to 0.
        $field = new xmldb_field('displaycoursestructure', XMLDB_TYPE_INTEGER, '1', null, XMLDB_NOTNULL, null, '0', 'displayattemptstatus');
        // Launch change of default for field displaycoursestructure.
        $dbman->change_field_default($table, $field);
        // Scorm savepoint reached.
        upgrade_mod_savepoint(true, 2015051102, 'scorm');
    }
    return true;
}
Exemplo n.º 22
0
function xmldb_glossary_upgrade($oldversion) {
    global $CFG, $DB, $OUTPUT;

    $dbman = $DB->get_manager();

//===== 1.9.0 upgrade line ======//

    if ($oldversion < 2008081900) {

        /////////////////////////////////////
        /// new file storage upgrade code ///
        /////////////////////////////////////

        $fs = get_file_storage();

        $empty = $DB->sql_empty(); // silly oracle empty string handling workaround

        $sqlfrom = "FROM {glossary_entries} ge
                    JOIN {glossary} g ON g.id = ge.glossaryid
                    JOIN {modules} m ON m.name = 'glossary'
                    JOIN {course_modules} cm ON (cm.module = m.id AND cm.instance = g.id)
                   WHERE ge.attachment <> '$empty' AND ge.attachment <> '1'";

        $count = $DB->count_records_sql("SELECT COUNT('x') $sqlfrom");

        $rs = $DB->get_recordset_sql("SELECT ge.id, ge.userid, ge.attachment, ge.glossaryid, ge.sourceglossaryid, g.course, cm.id AS cmid $sqlfrom ORDER BY g.course, g.id");
        if ($rs->valid()) {

            $pbar = new progress_bar('migrateglossaryfiles', 500, true);

            $i = 0;
            foreach ($rs as $entry) {
                $i++;
                upgrade_set_timeout(60); // set up timeout, may also abort execution
                $pbar->update($i, $count, "Migrating glossary entries - $i/$count.");

                $filepath = "$CFG->dataroot/$entry->course/$CFG->moddata/glossary/$entry->glossaryid/$entry->id/$entry->attachment";
                if ($entry->sourceglossaryid and !is_readable($filepath)) {
                    //eh - try the second possible location
                    $filepath = "$CFG->dataroot/$entry->course/$CFG->moddata/glossary/$entry->sourceglossaryid/$entry->id/$entry->attachment";

                }
                if (!is_readable($filepath)) {
                    //file missing??
                    echo $OUTPUT->notification("File not readable, skipping: $filepath");
                    $entry->attachment = '';
                    $DB->update_record('glossary_entries', $entry);
                    continue;
                }
                $context = get_context_instance(CONTEXT_MODULE, $entry->cmid);

                $filearea = 'attachment';
                $filename = clean_param($entry->attachment, PARAM_FILE);
                if ($filename === '') {
                    echo $OUTPUT->notification("Unsupported entry filename, skipping: ".$filepath);
                    $entry->attachment = '';
                    $DB->update_record('glossary_entries', $entry);
                    continue;
                }
                if (!$fs->file_exists($context->id, 'mod_glossary', $filearea, $entry->id, '/', $filename)) {
                    $file_record = array('contextid'=>$context->id, 'component'=>'mod_glossary', 'filearea'=>$filearea, 'itemid'=>$entry->id, 'filepath'=>'/', 'filename'=>$filename, 'userid'=>$entry->userid);
                    if ($fs->create_file_from_pathname($file_record, $filepath)) {
                        $entry->attachment = '1';
                        $DB->update_record('glossary_entries', $entry);
                        unlink($filepath);
                    }
                }

                // remove dirs if empty
                @rmdir("$CFG->dataroot/$entry->course/$CFG->moddata/glossary/$entry->glossaryid/$entry->id");
                @rmdir("$CFG->dataroot/$entry->course/$CFG->moddata/glossary/$entry->glossaryid");
                @rmdir("$CFG->dataroot/$entry->course/$CFG->moddata/glossary");
            }
        }
        $rs->close();

        upgrade_mod_savepoint(true, 2008081900, 'glossary');
    }

    if ($oldversion < 2009042000) {

    /// Rename field definitionformat on table glossary_entries to definitionformat
        $table = new xmldb_table('glossary_entries');
        $field = new xmldb_field('format', XMLDB_TYPE_INTEGER, '2', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0', 'definition');

    /// Launch rename field definitionformat
        $dbman->rename_field($table, $field, 'definitionformat');

    /// glossary savepoint reached
        upgrade_mod_savepoint(true, 2009042000, 'glossary');
    }

    if ($oldversion < 2009042001) {

    /// Define field definitiontrust to be added to glossary_entries
        $table = new xmldb_table('glossary_entries');
        $field = new xmldb_field('definitiontrust', XMLDB_TYPE_INTEGER, '2', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0', 'definitionformat');

    /// Launch add field definitiontrust
        $dbman->add_field($table, $field);

    /// glossary savepoint reached
        upgrade_mod_savepoint(true, 2009042001, 'glossary');
    }

    if ($oldversion < 2009042002) {

    /// Rename field format on table glossary_comments to NEWNAMEGOESHERE
        $table = new xmldb_table('glossary_comments');
        $field = new xmldb_field('format', XMLDB_TYPE_INTEGER, '2', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0', 'entrycomment');

    /// Launch rename field format
        $dbman->rename_field($table, $field, 'entrycommentformat');

    /// glossary savepoint reached
        upgrade_mod_savepoint(true, 2009042002, 'glossary');
    }

    if ($oldversion < 2009042003) {

    /// Define field entrycommenttrust to be added to glossary_comments
        $table = new xmldb_table('glossary_comments');
        $field = new xmldb_field('entrycommenttrust', XMLDB_TYPE_INTEGER, '2', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0', 'entrycommentformat');

    /// Conditionally launch add field entrycommenttrust
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }

    /// glossary savepoint reached
        upgrade_mod_savepoint(true, 2009042003, 'glossary');
    }

    if ($oldversion < 2009042004) {
        $trustmark = '#####TRUSTTEXT#####';
        $rs = $DB->get_recordset_sql("SELECT * FROM {glossary_entries} WHERE definition LIKE ?", array($trustmark.'%'));
        foreach ($rs as $entry) {
            if (strpos($entry->definition, $trustmark) !== 0) {
                // probably lowercase in some DBs
                continue;
            }
            $entry->definition      = str_replace($trustmark, '', $entry->definition);
            $entry->definitiontrust = 1;
            $DB->update_record('glossary_entries', $entry);
        }
        $rs->close();

    /// glossary savepoint reached
        upgrade_mod_savepoint(true, 2009042004, 'glossary');
    }

    if ($oldversion < 2009042005) {
        $trustmark = '#####TRUSTTEXT#####';
        $rs = $DB->get_recordset_sql("SELECT * FROM {glossary_comments} WHERE entrycomment LIKE ?", array($trustmark.'%'));
        foreach ($rs as $comment) {
            if (strpos($comment->entrycomment, $trustmark) !== 0) {
                // probably lowercase in some DBs
                continue;
            }
            $comment->entrycomment      = str_replace($trustmark, '', $comment->entrycomment);
            $comment->entrycommenttrust = 1;
            $DB->update_record('glossary_comments', $comment);
        }
        $rs->close();

    /// glossary savepoint reached
        upgrade_mod_savepoint(true, 2009042005, 'glossary');
    }

    if ($oldversion < 2009042006) {

    /// Define field introformat to be added to glossary
        $table = new xmldb_table('glossary');
        $field = new xmldb_field('introformat', XMLDB_TYPE_INTEGER, '4', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0', 'intro');

    /// Conditionally launch add field introformat
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }

        // conditionally migrate to html format in intro
        if ($CFG->texteditors !== 'textarea') {
            $rs = $DB->get_recordset('glossary', array('introformat'=>FORMAT_MOODLE), '', 'id,intro,introformat');
            foreach ($rs as $g) {
                $g->intro       = text_to_html($g->intro, false, false, true);
                $g->introformat = FORMAT_HTML;
                $DB->update_record('glossary', $g);
                upgrade_set_timeout();
            }
            $rs->close();
        }

    /// glossary savepoint reached
        upgrade_mod_savepoint(true, 2009042006, 'glossary');
    }
    if ($oldversion < 2009110800) {
        require_once($CFG->dirroot . '/comment/lib.php');
        upgrade_set_timeout(60*20);

    /// Define table glossary_comments to be dropped
        $table = new xmldb_table('glossary_comments');

    /// Conditionally launch drop table for glossary_comments
        if ($dbman->table_exists($table)) {
            $sql = "SELECT e.glossaryid AS glossaryid,
                           g.course AS courseid,
                           c.userid,
                           e.id AS itemid,
                           c.id AS old_id,
                           c.entrycomment AS commentcontent,
                           c.entrycommentformat AS format,
                           c.entrycommenttrust AS trust,
                           c.timemodified AS timemodified
                      FROM {glossary_comments} c, {glossary_entries} e, {glossary} g
                     WHERE c.entryid=e.id AND e.glossaryid=g.id
                  ORDER BY glossaryid, courseid";
            $lastglossaryid = null;
            $lastcourseid   = null;
            $modcontext     = null;

        /// move glossary comments to comments table
            $rs = $DB->get_recordset_sql($sql);
            foreach($rs as $res) {
                if ($res->glossaryid != $lastglossaryid || $res->courseid != $lastcourseid) {
                    $cm = get_coursemodule_from_instance('glossary', $res->glossaryid, $res->courseid);
                    if ($cm) {
                        $modcontext = get_context_instance(CONTEXT_MODULE, $cm->id);
                    }
                    $lastglossaryid = $res->glossaryid;
                    $lastcourseid   = $res->courseid;
                }
                $cmt = new stdClass();
                $cmt->contextid     = $modcontext->id;
                $cmt->commentarea   = 'glossary_entry';
                $cmt->itemid        = $res->itemid;
                $cmt->content       = $res->commentcontent;
                $cmt->format        = $res->format;
                $cmt->userid        = $res->userid;
                $cmt->timecreated    = $res->timemodified;
                $cmt_id = $DB->insert_record('comments', $cmt);
                if (!empty($cmt_id)) {
                    $DB->delete_records('glossary_comments', array('id'=>$res->old_id));
                }
            }
            $rs->close();
            $dbman->drop_table($table);
        }

    /// glossary savepoint reached
        upgrade_mod_savepoint(true, 2009110800, 'glossary');
    }

    if ($oldversion < 2010042800) {
        //migrate glossary_ratings to the central rating table
        $table = new xmldb_table('glossary_ratings');
        if ($dbman->table_exists($table)) {
            //glossary ratings only have a single time column so use it for both time created and modified
            $sql = "INSERT INTO {rating} (contextid, scaleid, itemid, rating, userid, timecreated, timemodified)

                    SELECT cxt.id, g.scale, r.entryid AS itemid, r.rating, r.userid, r.time AS timecreated, r.time AS timemodified
                      FROM {glossary_ratings} r
                      JOIN {glossary_entries} ge ON ge.id=r.entryid
                      JOIN {glossary} g ON g.id=ge.glossaryid
                      JOIN {course_modules} cm ON cm.instance=g.id
                      JOIN {context} cxt ON cxt.instanceid=cm.id
                      JOIN {modules} m ON m.id=cm.module
                     WHERE m.name = :modname AND cxt.contextlevel = :contextlevel";

            $params['modname'] = 'glossary';
            $params['contextlevel'] = CONTEXT_MODULE;

            $DB->execute($sql, $params);

            //now drop glossary_ratings
            $dbman->drop_table($table);
        }

        upgrade_mod_savepoint(true, 2010042800, 'glossary');
    }

    if ($oldversion < 2010111500) {
        // Delete orphaned glossary_entries not belonging to any glossary (MDL-25227)
        $sql = "DELETE FROM {glossary_entries}
                WHERE NOT EXISTS (
                    SELECT 'x' FROM {glossary} g
                    WHERE g.id = glossaryid)";
        $DB->execute($sql);

        upgrade_mod_savepoint(true, 2010111500, 'glossary');
    }

    if ($oldversion < 2010111501) {

        // Define field completionentries to be added to glossary
        $table = new xmldb_table('glossary');
        $field = new xmldb_field('completionentries', XMLDB_TYPE_INTEGER, '9', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0', 'timemodified');

        // Conditionally launch add field completionentries
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }

        // glossary savepoint reached
        upgrade_mod_savepoint(true, 2010111501, 'glossary');
    }

    if ($oldversion < 2011052300) {
        // rating.component and rating.ratingarea have now been added as mandatory fields.
        // Presently you can only rate data entries so component = 'mod_glossary' and ratingarea = 'entry'
        // for all ratings with a glossary context.
        // We want to update all ratings that belong to a glossary context and don't already have a
        // component set.
        // This could take a while reset upgrade timeout to 5 min
        upgrade_set_timeout(60 * 20);
        $sql = "UPDATE {rating}
                SET component = 'mod_glossary', ratingarea = 'entry'
                WHERE contextid IN (
                    SELECT ctx.id
                      FROM {context} ctx
                      JOIN {course_modules} cm ON cm.id = ctx.instanceid
                      JOIN {modules} m ON m.id = cm.module
                     WHERE ctx.contextlevel = 70 AND
                           m.name = 'glossary'
                ) AND component = 'unknown'";
        $DB->execute($sql);

        upgrade_mod_savepoint(true, 2011052300, 'glossary');
    }

    // Moodle v2.1.0 release upgrade line
    // Put any upgrade step following this

    // Moodle v2.2.0 release upgrade line
    // Put any upgrade step following this

    return true;
}
Exemplo n.º 23
0
/**
 * This function will fix the status of the localhost/all records in the mnet_host table
 * checking they exist and adding them if missing + redefine CFG->mnet_localhost_id  and
 * CFG->mnet_all_hosts_id if needed + update all the users having non-existent mnethostid
 * to correct CFG->mnet_localhost_id
 *
 * Implemented because, at some point, specially in old installations upgraded along
 * multiple versions, sometimes the stuff above has ended being inconsistent, causing
 * problems here and there (noticeablely in backup/restore). MDL-16879
 */
function upgrade_fix_incorrect_mnethostids()
{
    global $CFG, $DB;
    /// Get current $CFG/mnet_host records
    $old_mnet_localhost_id = !empty($CFG->mnet_localhost_id) ? $CFG->mnet_localhost_id : 0;
    $old_mnet_all_hosts_id = !empty($CFG->mnet_all_hosts_id) ? $CFG->mnet_all_hosts_id : 0;
    $current_mnet_localhost_host = $DB->get_record('mnet_host', array('wwwroot' => $CFG->wwwroot));
    /// By wwwroot
    $current_mnet_all_hosts_host = $DB->get_record_select('mnet_host', $DB->sql_isempty('mnet_host', 'wwwroot', false, false));
    /// By empty wwwroot
    /// Create localhost_host if necessary (pretty improbable but better to be 100% in the safe side)
    /// Code stolen from mnet_environment->init
    if (!$current_mnet_localhost_host) {
        $current_mnet_localhost_host = new stdClass();
        $current_mnet_localhost_host->wwwroot = $CFG->wwwroot;
        $current_mnet_localhost_host->ip_address = '';
        $current_mnet_localhost_host->public_key = '';
        $current_mnet_localhost_host->public_key_expires = 0;
        $current_mnet_localhost_host->last_connect_time = 0;
        $current_mnet_localhost_host->last_log_id = 0;
        $current_mnet_localhost_host->deleted = 0;
        $current_mnet_localhost_host->name = '';
        /// Get the ip of the server
        if (empty($_SERVER['SERVER_ADDR'])) {
            /// SERVER_ADDR is only returned by Apache-like webservers
            $count = preg_match("@^(?:http[s]?://)?([A-Z0-9\\-\\.]+).*@i", $current_mnet_localhost_host->wwwroot, $matches);
            $my_hostname = $count > 0 ? $matches[1] : false;
            $my_ip = gethostbyname($my_hostname);
            // Returns unmodified hostname on failure. DOH!
            if ($my_ip == $my_hostname) {
                $current_mnet_localhost_host->ip_address = 'UNKNOWN';
            } else {
                $current_mnet_localhost_host->ip_address = $my_ip;
            }
        } else {
            $current_mnet_localhost_host->ip_address = $_SERVER['SERVER_ADDR'];
        }
        $current_mnet_localhost_host->id = $DB->insert_record('mnet_host', $current_mnet_localhost_host, true);
    }
    /// Create all_hosts_host if necessary (pretty improbable but better to be 100% in the safe side)
    /// Code stolen from mnet_environment->init
    if (!$current_mnet_all_hosts_host) {
        $current_mnet_all_hosts_host = new stdClass();
        $current_mnet_all_hosts_host->wwwroot = '';
        $current_mnet_all_hosts_host->ip_address = '';
        $current_mnet_all_hosts_host->public_key = '';
        $current_mnet_all_hosts_host->public_key_expires = 0;
        $current_mnet_all_hosts_host->last_connect_time = 0;
        $current_mnet_all_hosts_host->last_log_id = 0;
        $current_mnet_all_hosts_host->deleted = 0;
        $current_mnet_all_hosts_host->name = 'All Hosts';
        $current_mnet_all_hosts_host->id = $DB->insert_record('mnet_host', $current_mnet_all_hosts_host, true);
    }
    /// Compare old_mnet_localhost_id and current_mnet_localhost_host
    if ($old_mnet_localhost_id != $current_mnet_localhost_host->id) {
        /// Different = problems
        /// Update $CFG->mnet_localhost_id to correct value
        set_config('mnet_localhost_id', $current_mnet_localhost_host->id);
        /// Delete $old_mnet_localhost_id if exists (users will be assigned to new one below)
        $DB->delete_records('mnet_host', array('id' => $old_mnet_localhost_id));
    }
    /// Compare old_mnet_all_hosts_id and current_mnet_all_hosts_host
    if ($old_mnet_all_hosts_id != $current_mnet_all_hosts_host->id) {
        /// Different = problems
        /// Update $CFG->mnet_localhost_id to correct value
        set_config('mnet_all_hosts_id', $current_mnet_all_hosts_host->id);
        /// Delete $old_mnet_all_hosts_id if exists
        $DB->delete_records('mnet_host', array('id' => $old_mnet_all_hosts_id));
    }
    /// Finally, update all the incorrect user->mnethostid to the correct CFG->mnet_localhost_id, preventing UIX dupes
    $hosts = $DB->get_records_menu('mnet_host', null, '', 'id, id AS id2');
    list($in_sql, $in_params) = $DB->get_in_or_equal($hosts, SQL_PARAMS_QM, null, false);
    $sql = "SELECT id\n            FROM {$CFG->prefix}user u1\n            WHERE u1.mnethostid {$in_sql}\n              AND NOT EXISTS (\n                  SELECT 'x'\n                    FROM {$CFG->prefix}user u2\n                   WHERE u2.username = u1.username\n                     AND u2.mnethostid = ?)";
    $params = array_merge($in_params, array($current_mnet_localhost_host->id));
    if ($rs = $DB->get_recordset_sql($sql, $params)) {
        foreach ($rs as $rec) {
            $DB->set_field('user', 'mnethostid', $current_mnet_localhost_host->id, array('id' => $rec->id));
            upgrade_set_timeout(60);
            /// Give upgrade at least 60 more seconds
        }
        $rs->close();
    }
}
Exemplo n.º 24
0
/**
 * Book module upgrade task
 *
 * @param int $oldversion the version we are upgrading from
 * @return bool always true
 */
function xmldb_book_upgrade($oldversion) {
    global $CFG, $DB;

    $dbman = $DB->get_manager();

    // Moodle v2.2.0 release upgrade line
    // Put any upgrade step following this

    // Moodle v2.3.0 release upgrade line
    // Put any upgrade step following this

    // Note: The next steps (up to 2012090408 included, are a "replay" of old upgrade steps,
    // because some sites updated to Moodle 2.3 didn't have the latest contrib mod_book
    // installed, so some required changes were missing.
    //
    // All the steps are run conditionally so sites upgraded from latest contrib mod_book or
    // new (2.3 and upwards) sites won't get affected.
    //
    // Warn: It will be safe to delete these steps once Moodle 2.5 (not 2.4!) is declared as minimum
    // requirement (environment.xml) in some future Moodle 2.x version. Never, never, before!
    //
    // See MDL-35297 and commit msg for more information.

    if ($oldversion < 2012090401) {
        // Rename field summary on table book to intro
        $table = new xmldb_table('book');
        $field = new xmldb_field('summary', XMLDB_TYPE_TEXT, null, null, null, null, null, 'name');

        // Launch rename field summary
        if ($dbman->field_exists($table, $field)) {
            $dbman->rename_field($table, $field, 'intro');
        }

        // book savepoint reached
        upgrade_mod_savepoint(true, 2012090401, 'book');
    }

    if ($oldversion < 2012090402) {
        // Define field introformat to be added to book
        $table = new xmldb_table('book');
        $field = new xmldb_field('introformat', XMLDB_TYPE_INTEGER, '4', null, XMLDB_NOTNULL, null, '0', 'intro');

        // Launch add field introformat
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
            // Conditionally migrate to html format in intro
            // Si está activo el htmleditor!!!!!
            if ($CFG->texteditors !== 'textarea') {
                $rs = $DB->get_recordset('book', array('introformat'=>FORMAT_MOODLE), '', 'id,intro,introformat');
                foreach ($rs as $b) {
                    $b->intro       = text_to_html($b->intro, false, false, true);
                    $b->introformat = FORMAT_HTML;
                    $DB->update_record('book', $b);
                    upgrade_set_timeout();
                }
                unset($b);
                $rs->close();
            }
        }

        // book savepoint reached
        upgrade_mod_savepoint(true, 2012090402, 'book');
    }

    if ($oldversion < 2012090403) {
        // Define field introformat to be added to book
        $table = new xmldb_table('book_chapters');
        $field = new xmldb_field('contentformat', XMLDB_TYPE_INTEGER, '4', null, XMLDB_NOTNULL, null, '0', 'content');

        // Launch add field introformat
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);

            $DB->set_field('book_chapters', 'contentformat', FORMAT_HTML, array());
        }

        // book savepoint reached
        upgrade_mod_savepoint(true, 2012090403, 'book');
    }

    if ($oldversion < 2012090404) {
        require_once("$CFG->dirroot/mod/book/db/upgradelib.php");

        $sqlfrom = "FROM {book} b
                    JOIN {modules} m ON m.name = 'book'
                    JOIN {course_modules} cm ON (cm.module = m.id AND cm.instance = b.id)";

        $count = $DB->count_records_sql("SELECT COUNT('x') $sqlfrom");

        if ($rs = $DB->get_recordset_sql("SELECT b.id, b.course, cm.id AS cmid $sqlfrom ORDER BY b.course, b.id")) {

            $pbar = new progress_bar('migratebookfiles', 500, true);

            $i = 0;
            foreach ($rs as $book) {
                $i++;
                upgrade_set_timeout(360); // set up timeout, may also abort execution
                $pbar->update($i, $count, "Migrating book files - $i/$count.");

                $context = context_module::instance($book->cmid);

                mod_book_migrate_moddata_dir_to_legacy($book, $context, '/');

                // remove dirs if empty
                @rmdir("$CFG->dataroot/$book->course/$CFG->moddata/book/$book->id/");
                @rmdir("$CFG->dataroot/$book->course/$CFG->moddata/book/");
                @rmdir("$CFG->dataroot/$book->course/$CFG->moddata/");
                @rmdir("$CFG->dataroot/$book->course/");
            }
            $rs->close();
        }

        // book savepoint reached
        upgrade_mod_savepoint(true, 2012090404, 'book');
    }

    if ($oldversion < 2012090405) {
        // Define field disableprinting to be dropped from book
        $table = new xmldb_table('book');
        $field = new xmldb_field('disableprinting');

        // Conditionally launch drop field disableprinting
        if ($dbman->field_exists($table, $field)) {
            $dbman->drop_field($table, $field);
        }

        // book savepoint reached
        upgrade_mod_savepoint(true, 2012090405, 'book');
    }

    if ($oldversion < 2012090406) {
        unset_config('book_tocwidth');

        // book savepoint reached
        upgrade_mod_savepoint(true, 2012090406, 'book');
    }

    if ($oldversion < 2012090407) {
        require_once("$CFG->dirroot/mod/book/db/upgradelib.php");

        mod_book_migrate_all_areas();

        upgrade_mod_savepoint(true, 2012090407, 'book');
    }

    if ($oldversion < 2012090408) {

        // Define field revision to be added to book
        $table = new xmldb_table('book');
        $field = new xmldb_field('revision', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0', 'customtitles');

        // Conditionally launch add field revision
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }

        // book savepoint reached
        upgrade_mod_savepoint(true, 2012090408, 'book');
    }
    // End of MDL-35297 "replayed" steps.

    // Moodle v2.4.0 release upgrade line
    // Put any upgrade step following this


    return true;
}
Exemplo n.º 25
0
function xmldb_data_upgrade($oldversion) {
    global $CFG, $DB, $OUTPUT;

    $dbman = $DB->get_manager();

//===== 1.9.0 upgrade line ======//

    if ($oldversion < 2007101512) {
    /// Launch add field asearchtemplate again if does not exists yet - reported on several sites

        $table = new xmldb_table('data');
        $field = new xmldb_field('asearchtemplate', XMLDB_TYPE_TEXT, 'small', null, null, null, null, 'jstemplate');

        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        upgrade_mod_savepoint(true, 2007101512, 'data');
    }

    if ($oldversion < 2007101513) {
        // Upgrade all the data->notification currently being
        // NULL to 0
        $sql = "UPDATE {data} SET notification=0 WHERE notification IS NULL";
        $DB->execute($sql);

        $table = new xmldb_table('data');
        $field = new xmldb_field('notification', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0', 'editany');
        // First step, Set NOT NULL
        $dbman->change_field_notnull($table, $field);
        // Second step, Set default to 0
        $dbman->change_field_default($table, $field);
        upgrade_mod_savepoint(true, 2007101513, 'data');
    }

    if ($oldversion < 2008081400) {
        $pattern = '/\#\#delete\#\#(\s+)\#\#approve\#\#/';
        $replacement = '##delete##$1##approve##$1##export##';
        $rs = $DB->get_recordset('data');
        foreach ($rs as $data) {
            $data->listtemplate = preg_replace($pattern, $replacement, $data->listtemplate);
            $data->singletemplate = preg_replace($pattern, $replacement, $data->singletemplate);
            $DB->update_record('data', $data);
        }
        $rs->close();

        upgrade_mod_savepoint(true, 2008081400, 'data');
    }

    if ($oldversion < 2008091400) {

        /////////////////////////////////////
        /// new file storage upgrade code ///
        /////////////////////////////////////

        $fs = get_file_storage();

        $empty = $DB->sql_empty(); // silly oracle empty string handling workaround

        $sqlfrom = "FROM {data_content} c
                    JOIN {data_fields} f     ON f.id = c.fieldid
                    JOIN {data_records} r    ON r.id = c.recordid
                    JOIN {data} d            ON d.id = r.dataid
                    JOIN {modules} m         ON m.name = 'data'
                    JOIN {course_modules} cm ON (cm.module = m.id AND cm.instance = d.id)
                   WHERE ".$DB->sql_compare_text('c.content', 2)." <> '$empty' AND c.content IS NOT NULL
                         AND (f.type = 'file' OR f.type = 'picture')";

        $count = $DB->count_records_sql("SELECT COUNT('x') $sqlfrom");

        $rs = $DB->get_recordset_sql("SELECT c.id, f.type, r.dataid, c.recordid, f.id AS fieldid, r.userid, c.content, c.content1, d.course, r.userid, cm.id AS cmid $sqlfrom ORDER BY d.course, d.id");

        if ($rs->valid()) {
            $pbar = new progress_bar('migratedatafiles', 500, true);

            $i = 0;
            foreach ($rs as $content) {
                $i++;
                upgrade_set_timeout(60); // set up timeout, may also abort execution
                $pbar->update($i, $count, "Migrating data entries - $i/$count.");

                $filepath = "$CFG->dataroot/$content->course/$CFG->moddata/data/$content->dataid/$content->fieldid/$content->recordid/$content->content";
                $context = get_context_instance(CONTEXT_MODULE, $content->cmid);

                if (!file_exists($filepath)) {
                    continue;
                }

                $filearea = 'content';
                $oldfilename = $content->content;
                $filename    = clean_param($oldfilename, PARAM_FILE);
                if ($filename === '') {
                    continue;
                }
                if (!$fs->file_exists($context->id, 'mod_data', $filearea, $content->id, '/', $filename)) {
                    $file_record = array('contextid'=>$context->id, 'component'=>'mod_data', 'filearea'=>$filearea, 'itemid'=>$content->id, 'filepath'=>'/', 'filename'=>$filename, 'userid'=>$content->userid);
                    if ($fs->create_file_from_pathname($file_record, $filepath)) {
                        unlink($filepath);
                        if ($oldfilename !== $filename) {
                            // update filename if needed
                            $DB->set_field('data_content', 'content', $filename, array('id'=>$content->id));
                        }
                        if ($content->type == 'picture') {
                            // migrate thumb
                            $filepath = "$CFG->dataroot/$content->course/$CFG->moddata/data/$content->dataid/$content->fieldid/$content->recordid/thumb/$content->content";
                            if (file_exists($filepath)) {
                                if (!$fs->file_exists($context->id, 'mod_data', $filearea, $content->id, '/', 'thumb_'.$filename)) {
                                    $file_record['filename'] = 'thumb_'.$file_record['filename'];
                                    $fs->create_file_from_pathname($file_record, $filepath);
                                }
                                unlink($filepath);
                            }
                        }
                    }
                }

                // remove dirs if empty
                @rmdir("$CFG->dataroot/$content->course/$CFG->moddata/data/$content->dataid/$content->fieldid/$content->recordid/thumb");
                @rmdir("$CFG->dataroot/$content->course/$CFG->moddata/data/$content->dataid/$content->fieldid/$content->recordid");
                @rmdir("$CFG->dataroot/$content->course/$CFG->moddata/data/$content->dataid/$content->fieldid");
                @rmdir("$CFG->dataroot/$content->course/$CFG->moddata/data/$content->dataid");
                @rmdir("$CFG->dataroot/$content->course/$CFG->moddata/data");
                @rmdir("$CFG->dataroot/$content->course/$CFG->moddata");
            }
        }
        $rs->close();

        upgrade_mod_savepoint(true, 2008091400, 'data');
    }

    if ($oldversion < 2008112700) {
        if (!get_config('data', 'requiredentriesfixflag')) {
            $databases = $DB->get_records_sql("SELECT d.*, c.fullname
                                                 FROM {data} d, {course} c
                                                WHERE d.course = c.id
                                                      AND (d.requiredentries > 0 OR d.requiredentriestoview > 0)
                                             ORDER BY c.fullname, d.name");
            if (!empty($databases)) {
                $a = new stdClass();
                $a->text = '';
                foreach($databases as $database) {
                    $a->text .= $database->fullname." - " .$database->name. " (course id: ".$database->course." - database id: ".$database->id.")<br/>";
                }
                //TODO: MDL-17427 send this info to "upgrade log" which will be implemented in 2.0
                echo $OUTPUT->notification(get_string('requiredentrieschanged', 'admin', $a));
            }
        }
        unset_config('requiredentriesfixflag', 'data'); // remove old flag
        upgrade_mod_savepoint(true, 2008112700, 'data');
    }

    if ($oldversion < 2009042000) {

    /// Define field introformat to be added to data
        $table = new xmldb_table('data');
        $field = new xmldb_field('introformat', XMLDB_TYPE_INTEGER, '4', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0', 'intro');

    /// Launch add field introformat
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }

        // conditionally migrate to html format in intro
        if ($CFG->texteditors !== 'textarea') {
            $rs = $DB->get_recordset('data', array('introformat'=>FORMAT_MOODLE), '', 'id,intro,introformat');
            foreach ($rs as $d) {
                $d->intro       = text_to_html($d->intro, false, false, true);
                $d->introformat = FORMAT_HTML;
                $DB->update_record('data', $d);
                upgrade_set_timeout();
            }
            $rs->close();
        }

    /// data savepoint reached
        upgrade_mod_savepoint(true, 2009042000, 'data');
    }

    if ($oldversion < 2009111701) {
        upgrade_set_timeout(60*20);

    /// Define table data_comments to be dropped
        $table = new xmldb_table('data_comments');

    /// Conditionally launch drop table for data_comments
        if ($dbman->table_exists($table)) {
            $sql = "SELECT d.id AS dataid,
                           d.course AS courseid,
                           c.userid,
                           r.id AS itemid,
                           c.id AS commentid,
                           c.content AS commentcontent,
                           c.format AS format,
                           c.created AS timecreated
                      FROM {data_comments} c, {data_records} r, {data} d
                     WHERE c.recordid=r.id AND r.dataid=d.id
                  ORDER BY dataid, courseid";
            /// move data comments to comments table
            $lastdataid = null;
            $lastcourseid = null;
            $modcontext = null;
            $rs = $DB->get_recordset_sql($sql);
            foreach($rs as $res) {
                if ($res->dataid != $lastdataid || $res->courseid != $lastcourseid) {
                    $cm = get_coursemodule_from_instance('data', $res->dataid, $res->courseid);
                    if ($cm) {
                        $modcontext = get_context_instance(CONTEXT_MODULE, $cm->id);
                    }
                    $lastdataid = $res->dataid;
                    $lastcourseid = $res->courseid;
                }
                $cmt = new stdClass();
                $cmt->contextid   = $modcontext->id;
                $cmt->commentarea = 'database_entry';
                $cmt->itemid      = $res->itemid;
                $cmt->content     = $res->commentcontent;
                $cmt->format      = $res->format;
                $cmt->userid      = $res->userid;
                $cmt->timecreated = $res->timecreated;
                // comments class will throw an exception if error occurs
                $cmt_id = $DB->insert_record('comments', $cmt);
                if (!empty($cmt_id)) {
                    $DB->delete_records('data_comments', array('id'=>$res->commentid));
                }
            }
            $rs->close();
            // the default exception handler will stop the script if error occurs before
            $dbman->drop_table($table);
        }

    /// data savepoint reached
        upgrade_mod_savepoint(true, 2009111701, 'data');
    }

    if ($oldversion < 2010031602) {
        //add assesstimestart and assesstimefinish columns to data
        $table = new xmldb_table('data');

        $field = new xmldb_field('assesstimestart');
        if (!$dbman->field_exists($table, $field)) {
            $field->set_attributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, 0, 'assessed');
            $dbman->add_field($table, $field);
        }

        $field = new xmldb_field('assesstimefinish');
        if (!$dbman->field_exists($table, $field)) {
            $field->set_attributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, 0, 'assesstimestart');
            $dbman->add_field($table, $field);
        }

        upgrade_mod_savepoint(true, 2010031602, 'data');
    }

    if ($oldversion < 2010042800) {
        //migrate data ratings to the central rating table
        $table = new xmldb_table('data_ratings');
        if ($dbman->table_exists($table)) {
            //data ratings didnt store time created and modified so Im using the times from the record the rating was attached to
            $sql = "INSERT INTO {rating} (contextid, scaleid, itemid, rating, userid, timecreated, timemodified)

                    SELECT cxt.id, d.scale, r.recordid AS itemid, r.rating, r.userid, re.timecreated AS timecreated, re.timemodified AS timemodified
                      FROM {data_ratings} r
                      JOIN {data_records} re ON r.recordid=re.id
                      JOIN {data} d ON d.id=re.dataid
                      JOIN {course_modules} cm ON cm.instance=d.id
                      JOIN {context} cxt ON cxt.instanceid=cm.id
                      JOIN {modules} m ON m.id=cm.module
                     WHERE m.name = :modname AND cxt.contextlevel = :contextlevel";
            $params['modname'] = 'data';
            $params['contextlevel'] = CONTEXT_MODULE;

            $DB->execute($sql, $params);

            //now drop data_ratings
            $dbman->drop_table($table);
        }

        upgrade_mod_savepoint(true, 2010042800, 'data');
    }

    //rerun the upgrade see MDL-24470
    if ($oldversion < 2010100101) {
        // Upgrade all the data->notification currently being
        // NULL to 0
        $sql = "UPDATE {data} SET notification=0 WHERE notification IS NULL";
        $DB->execute($sql);

        $table = new xmldb_table('data');
        $field = new xmldb_field('notification', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0', 'editany');
        // First step, Set NOT NULL
        $dbman->change_field_notnull($table, $field);
        // Second step, Set default to 0
        $dbman->change_field_default($table, $field);
        upgrade_mod_savepoint(true, 2010100101, 'data');
    }

    if ($oldversion < 2011052300) {
        // rating.component and rating.ratingarea have now been added as mandatory fields.
        // Presently you can only rate data entries so component = 'mod_data' and ratingarea = 'entry'
        // for all ratings with a data context.
        // We want to update all ratings that belong to a data context and don't already have a
        // component set.
        // This could take a while reset upgrade timeout to 5 min
        upgrade_set_timeout(60 * 20);
        $sql = "UPDATE {rating}
                SET component = 'mod_data', ratingarea = 'entry'
                WHERE contextid IN (
                    SELECT ctx.id
                      FROM {context} ctx
                      JOIN {course_modules} cm ON cm.id = ctx.instanceid
                      JOIN {modules} m ON m.id = cm.module
                     WHERE ctx.contextlevel = 70 AND
                           m.name = 'data'
                ) AND component = 'unknown'";
        $DB->execute($sql);

        upgrade_mod_savepoint(true, 2011052300, 'data');
    }

    // Moodle v2.1.0 release upgrade line
    // Put any upgrade step following this

    // Moodle v2.2.0 release upgrade line
    // Put any upgrade step following this

    return true;
}
Exemplo n.º 26
0
/**
 * Migrate all text and binary columns to big size - mysql only.
 */
function upgrade_mysql_fix_lob_columns()
{
    // we are not using standard API for changes of column intentionally
    global $DB;
    if ($DB->get_dbfamily() !== 'mysql') {
        return;
    }
    $pbar = new progress_bar('mysqlconvertlobs', 500, true);
    $prefix = $DB->get_prefix();
    $tables = $DB->get_tables();
    asort($tables);
    $tablecount = count($tables);
    $i = 0;
    foreach ($tables as $table) {
        $i++;
        // set appropriate timeout - 1 minute per thousand of records should be enough, min 60 minutes just in case
        $count = $DB->count_records($table, array());
        $timeout = $count / 1000 * 60;
        $timeout = $timeout < 60 * 60 ? 60 * 60 : (int) $timeout;
        $sql = "SHOW COLUMNS FROM `{{$table}}`";
        $rs = $DB->get_recordset_sql($sql);
        foreach ($rs as $column) {
            upgrade_set_timeout($timeout);
            $column = (object) array_change_key_case((array) $column, CASE_LOWER);
            if ($column->type === 'tinytext' or $column->type === 'mediumtext' or $column->type === 'text') {
                $notnull = $column->null === 'NO' ? 'NOT NULL' : 'NULL';
                $default = (!is_null($column->default) and $column->default !== '') ? "DEFAULT '{$column->default}'" : '';
                // primary, unique and inc are not supported for texts
                $sql = "ALTER TABLE `{$prefix}{$table}` MODIFY COLUMN `{$column->field}` LONGTEXT {$notnull} {$default}";
                $DB->change_database_structure($sql);
            }
            if ($column->type === 'tinyblob' or $column->type === 'mediumblob' or $column->type === 'blob') {
                $notnull = $column->null === 'NO' ? 'NOT NULL' : 'NULL';
                $default = (!is_null($column->default) and $column->default !== '') ? "DEFAULT '{$column->default}'" : '';
                // primary, unique and inc are not supported for blobs
                $sql = "ALTER TABLE `{$prefix}{$table}` MODIFY COLUMN `{$column->field}` LONGBLOB {$notnull} {$default}";
                $DB->change_database_structure($sql);
            }
        }
        $rs->close();
        $pbar->update($i, $tablecount, "Converted LOB columns in MySQL database - {$i}/{$tablecount}.");
    }
}
Exemplo n.º 27
0
/**
 * Main upgrade tasks to be executed on Moodle version bump
 *
 * This function is automatically executed after one bump in the Moodle core
 * version is detected. It's in charge of performing the required tasks
 * to raise core from the previous version to the next one.
 *
 * It's a collection of ordered blocks of code, named "upgrade steps",
 * each one performing one isolated (from the rest of steps) task. Usually
 * tasks involve creating new DB objects or performing manipulation of the
 * information for cleanup/fixup purposes.
 *
 * Each upgrade step has a fixed structure, that can be summarised as follows:
 *
 * if ($oldversion < XXXXXXXXXX.XX) {
 *     // Explanation of the update step, linking to issue in the Tracker if necessary
 *     upgrade_set_timeout(XX); // Optional for big tasks
 *     // Code to execute goes here, usually the XMLDB Editor will
 *     // help you here. See {@link http://docs.moodle.org/dev/XMLDB_editor}.
 *     upgrade_main_savepoint(true, XXXXXXXXXX.XX);
 * }
 *
 * All plugins within Moodle (modules, blocks, reports...) support the existence of
 * their own upgrade.php file, using the "Frankenstyle" component name as
 * defined at {@link http://docs.moodle.org/dev/Frankenstyle}, for example:
 *     - {@link xmldb_page_upgrade($oldversion)}. (modules don't require the plugintype ("mod_") to be used.
 *     - {@link xmldb_auth_manual_upgrade($oldversion)}.
 *     - {@link xmldb_workshopform_accumulative_upgrade($oldversion)}.
 *     - ....
 *
 * In order to keep the contents of this file reduced, it's allowed to create some helper
 * functions to be used here in the {@link upgradelib.php} file at the same directory. Note
 * that such a file must be manually included from upgrade.php, and there are some restrictions
 * about what can be used within it.
 *
 * For more information, take a look to the documentation available:
 *     - Data definition API: {@link http://docs.moodle.org/dev/Data_definition_API}
 *     - Upgrade API: {@link http://docs.moodle.org/dev/Upgrade_API}
 *
 * @param int $oldversion
 * @return bool always true
 */
function xmldb_main_upgrade($oldversion)
{
    global $CFG, $DB;
    require_once $CFG->libdir . '/db/upgradelib.php';
    // Core Upgrade-related functions.
    $dbman = $DB->get_manager();
    // Loads ddl manager and xmldb classes.
    // Always keep this upgrade step with version being the minimum
    // allowed version to upgrade from (v2.7.0 right now).
    if ($oldversion < 2014051200) {
        // Just in case somebody hacks upgrade scripts or env, we really can not continue.
        echo "You need to upgrade to 2.7.x or higher first!\n";
        exit(1);
        // Note this savepoint is 100% unreachable, but needed to pass the upgrade checks.
        upgrade_main_savepoint(true, 2014051200);
    }
    // MDL-32543 Make sure that the log table has correct length for action and url fields.
    if ($oldversion < 2014051200.02) {
        $table = new xmldb_table('log');
        $columns = $DB->get_columns('log');
        if ($columns['action']->max_length < 40) {
            $index1 = new xmldb_index('course-module-action', XMLDB_INDEX_NOTUNIQUE, array('course', 'module', 'action'));
            if ($dbman->index_exists($table, $index1)) {
                $dbman->drop_index($table, $index1);
            }
            $index2 = new xmldb_index('action', XMLDB_INDEX_NOTUNIQUE, array('action'));
            if ($dbman->index_exists($table, $index2)) {
                $dbman->drop_index($table, $index2);
            }
            $field = new xmldb_field('action', XMLDB_TYPE_CHAR, '40', null, XMLDB_NOTNULL, null, null, 'cmid');
            $dbman->change_field_precision($table, $field);
            $dbman->add_index($table, $index1);
            $dbman->add_index($table, $index2);
        }
        if ($columns['url']->max_length < 100) {
            $field = new xmldb_field('url', XMLDB_TYPE_CHAR, '100', null, XMLDB_NOTNULL, null, null, 'action');
            $dbman->change_field_precision($table, $field);
        }
        upgrade_main_savepoint(true, 2014051200.02);
    }
    if ($oldversion < 2014060300.0) {
        $gspath = get_config('assignfeedback_editpdf', 'gspath');
        if ($gspath !== false) {
            set_config('pathtogs', $gspath);
            unset_config('gspath', 'assignfeedback_editpdf');
        }
        upgrade_main_savepoint(true, 2014060300.0);
    }
    if ($oldversion < 2014061000.0) {
        // Fixing possible wrong MIME type for Publisher files.
        $filetypes = array('%.pub' => 'application/x-mspublisher');
        upgrade_mimetypes($filetypes);
        upgrade_main_savepoint(true, 2014061000.0);
    }
    if ($oldversion < 2014062600.01) {
        // We only want to delete DragMath if the directory no longer exists. If the directory
        // is present then it means it has been restored, so do not perform the uninstall.
        if (!check_dir_exists($CFG->libdir . '/editor/tinymce/plugins/dragmath', false)) {
            // Purge DragMath plugin which is incompatible with GNU GPL license.
            unset_all_config_for_plugin('tinymce_dragmath');
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2014062600.01);
    }
    // Switch the order of the fields in the files_reference index, to improve the performance of search_references.
    if ($oldversion < 2014070100.0) {
        $table = new xmldb_table('files_reference');
        $index = new xmldb_index('uq_external_file', XMLDB_INDEX_UNIQUE, array('repositoryid', 'referencehash'));
        if ($dbman->index_exists($table, $index)) {
            $dbman->drop_index($table, $index);
        }
        upgrade_main_savepoint(true, 2014070100.0);
    }
    if ($oldversion < 2014070101.0) {
        $table = new xmldb_table('files_reference');
        $index = new xmldb_index('uq_external_file', XMLDB_INDEX_UNIQUE, array('referencehash', 'repositoryid'));
        if (!$dbman->index_exists($table, $index)) {
            $dbman->add_index($table, $index);
        }
        upgrade_main_savepoint(true, 2014070101.0);
    }
    if ($oldversion < 2014072400.01) {
        $table = new xmldb_table('user_devices');
        $oldindex = new xmldb_index('pushid-platform', XMLDB_KEY_UNIQUE, array('pushid', 'platform'));
        if ($dbman->index_exists($table, $oldindex)) {
            $key = new xmldb_key('pushid-platform', XMLDB_KEY_UNIQUE, array('pushid', 'platform'));
            $dbman->drop_key($table, $key);
        }
        upgrade_main_savepoint(true, 2014072400.01);
    }
    if ($oldversion < 2014080801.0) {
        // Define index behaviour (not unique) to be added to question_attempts.
        $table = new xmldb_table('question_attempts');
        $index = new xmldb_index('behaviour', XMLDB_INDEX_NOTUNIQUE, array('behaviour'));
        // Conditionally launch add index behaviour.
        if (!$dbman->index_exists($table, $index)) {
            $dbman->add_index($table, $index);
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2014080801.0);
    }
    if ($oldversion < 2014082900.01) {
        // Fixing possible wrong MIME type for 7-zip and Rar files.
        $filetypes = array('%.7z' => 'application/x-7z-compressed', '%.rar' => 'application/x-rar-compressed');
        upgrade_mimetypes($filetypes);
        upgrade_main_savepoint(true, 2014082900.01);
    }
    if ($oldversion < 2014082900.02) {
        // Replace groupmembersonly usage with new availability system.
        $transaction = $DB->start_delegated_transaction();
        if ($CFG->enablegroupmembersonly) {
            // If it isn't already enabled, we need to enable availability.
            if (!$CFG->enableavailability) {
                set_config('enableavailability', 1);
            }
            // Count all course-modules with groupmembersonly set (for progress
            // bar).
            $total = $DB->count_records('course_modules', array('groupmembersonly' => 1));
            $pbar = new progress_bar('upgradegroupmembersonly', 500, true);
            // Get all these course-modules, one at a time.
            $rs = $DB->get_recordset('course_modules', array('groupmembersonly' => 1), 'course, id');
            $i = 0;
            foreach ($rs as $cm) {
                // Calculate and set new availability value.
                $availability = upgrade_group_members_only($cm->groupingid, $cm->availability);
                $DB->set_field('course_modules', 'availability', $availability, array('id' => $cm->id));
                // Update progress.
                $i++;
                $pbar->update($i, $total, "Upgrading groupmembersonly settings - {$i}/{$total}.");
            }
            $rs->close();
        }
        // Define field groupmembersonly to be dropped from course_modules.
        $table = new xmldb_table('course_modules');
        $field = new xmldb_field('groupmembersonly');
        // Conditionally launch drop field groupmembersonly.
        if ($dbman->field_exists($table, $field)) {
            $dbman->drop_field($table, $field);
        }
        // Unset old config variable.
        unset_config('enablegroupmembersonly');
        $transaction->allow_commit();
        upgrade_main_savepoint(true, 2014082900.02);
    }
    if ($oldversion < 2014100100.0) {
        // Define table messageinbound_handlers to be created.
        $table = new xmldb_table('messageinbound_handlers');
        // Adding fields to table messageinbound_handlers.
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('component', XMLDB_TYPE_CHAR, '100', null, XMLDB_NOTNULL, null, null);
        $table->add_field('classname', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null);
        $table->add_field('defaultexpiration', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '86400');
        $table->add_field('validateaddress', XMLDB_TYPE_INTEGER, '1', null, XMLDB_NOTNULL, null, '1');
        $table->add_field('enabled', XMLDB_TYPE_INTEGER, '1', null, XMLDB_NOTNULL, null, '0');
        // Adding keys to table messageinbound_handlers.
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->add_key('classname', XMLDB_KEY_UNIQUE, array('classname'));
        // Conditionally launch create table for messageinbound_handlers.
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        // Define table messageinbound_datakeys to be created.
        $table = new xmldb_table('messageinbound_datakeys');
        // Adding fields to table messageinbound_datakeys.
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('handler', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null);
        $table->add_field('datavalue', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null);
        $table->add_field('datakey', XMLDB_TYPE_CHAR, '64', null, null, null, null);
        $table->add_field('timecreated', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null);
        $table->add_field('expires', XMLDB_TYPE_INTEGER, '10', null, null, null, null);
        // Adding keys to table messageinbound_datakeys.
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->add_key('handler_datavalue', XMLDB_KEY_UNIQUE, array('handler', 'datavalue'));
        $table->add_key('handler', XMLDB_KEY_FOREIGN, array('handler'), 'messageinbound_handlers', array('id'));
        // Conditionally launch create table for messageinbound_datakeys.
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2014100100.0);
    }
    if ($oldversion < 2014100600.01) {
        // Define field aggregationstatus to be added to grade_grades.
        $table = new xmldb_table('grade_grades');
        $field = new xmldb_field('aggregationstatus', XMLDB_TYPE_CHAR, '10', null, XMLDB_NOTNULL, null, 'unknown', 'timemodified');
        // Conditionally launch add field aggregationstatus.
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        $field = new xmldb_field('aggregationweight', XMLDB_TYPE_NUMBER, '10, 5', null, null, null, null, 'aggregationstatus');
        // Conditionally launch add field aggregationweight.
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        // Define field aggregationcoef2 to be added to grade_items.
        $table = new xmldb_table('grade_items');
        $field = new xmldb_field('aggregationcoef2', XMLDB_TYPE_NUMBER, '10, 5', null, XMLDB_NOTNULL, null, '0', 'aggregationcoef');
        // Conditionally launch add field aggregationcoef2.
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        $field = new xmldb_field('weightoverride', XMLDB_TYPE_INTEGER, '1', null, XMLDB_NOTNULL, null, '0', 'needsupdate');
        // Conditionally launch add field weightoverride.
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2014100600.01);
    }
    if ($oldversion < 2014100600.02) {
        // Define field aggregationcoef2 to be added to grade_items_history.
        $table = new xmldb_table('grade_items_history');
        $field = new xmldb_field('aggregationcoef2', XMLDB_TYPE_NUMBER, '10, 5', null, XMLDB_NOTNULL, null, '0', 'aggregationcoef');
        // Conditionally launch add field aggregationcoef2.
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2014100600.02);
    }
    if ($oldversion < 2014100600.03) {
        // Define field weightoverride to be added to grade_items_history.
        $table = new xmldb_table('grade_items_history');
        $field = new xmldb_field('weightoverride', XMLDB_TYPE_INTEGER, '1', null, XMLDB_NOTNULL, null, '0', 'decimals');
        // Conditionally launch add field weightoverride.
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2014100600.03);
    }
    if ($oldversion < 2014100600.04) {
        // Set flags so we can display a notice on all courses that might
        // be affected by the uprade to natural aggregation.
        if (!get_config('grades_sumofgrades_upgrade_flagged', 'core')) {
            // 13 == SUM_OF_GRADES.
            $sql = 'SELECT DISTINCT courseid
                      FROM {grade_categories}
                     WHERE aggregation = ?';
            $courses = $DB->get_records_sql($sql, array(13));
            foreach ($courses as $course) {
                set_config('show_sumofgrades_upgrade_' . $course->courseid, 1);
                // Set each of the grade items to needing an update so that when the user visits the grade reports the
                // figures will be updated.
                $DB->set_field('grade_items', 'needsupdate', 1, array('courseid' => $course->courseid));
            }
            set_config('grades_sumofgrades_upgrade_flagged', 1);
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2014100600.04);
    }
    if ($oldversion < 2014100700.0) {
        // Define table messageinbound_messagelist to be created.
        $table = new xmldb_table('messageinbound_messagelist');
        // Adding fields to table messageinbound_messagelist.
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('messageid', XMLDB_TYPE_TEXT, null, null, XMLDB_NOTNULL, null, null);
        $table->add_field('userid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null);
        $table->add_field('address', XMLDB_TYPE_TEXT, null, null, XMLDB_NOTNULL, null, null);
        $table->add_field('timecreated', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null);
        // Adding keys to table messageinbound_messagelist.
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->add_key('userid', XMLDB_KEY_FOREIGN, array('userid'), 'user', array('id'));
        // Conditionally launch create table for messageinbound_messagelist.
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2014100700.0);
    }
    if ($oldversion < 2014100700.01) {
        // Define field visible to be added to cohort.
        $table = new xmldb_table('cohort');
        $field = new xmldb_field('visible', XMLDB_TYPE_INTEGER, '1', null, XMLDB_NOTNULL, null, '1', 'descriptionformat');
        // Conditionally launch add field visible.
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2014100700.01);
    }
    if ($oldversion < 2014100800.0) {
        // Remove qformat_learnwise (unless it has manually been added back).
        if (!file_exists($CFG->dirroot . '/question/format/learnwise/format.php')) {
            unset_all_config_for_plugin('qformat_learnwise');
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2014100800.0);
    }
    if ($oldversion < 2014101001.0) {
        // Some blocks added themselves to the my/ home page, but they did not declare the
        // subpage of the default my home page. While the upgrade script has been fixed, this
        // upgrade script will fix the data that was wrongly added.
        // We only proceed if we can find the right entry from my_pages. Private => 1 refers to
        // the constant value MY_PAGE_PRIVATE.
        if ($systempage = $DB->get_record('my_pages', array('userid' => null, 'private' => 1))) {
            // Select the blocks there could have been automatically added. showinsubcontexts is hardcoded to 0
            // because it is possible for administrators to have forced it on the my/ page by adding it to the
            // system directly rather than updating the default my/ page.
            $blocks = array('course_overview', 'private_files', 'online_users', 'badges', 'calendar_month', 'calendar_upcoming');
            list($blocksql, $blockparams) = $DB->get_in_or_equal($blocks, SQL_PARAMS_NAMED);
            $select = "parentcontextid = :contextid\n                    AND pagetypepattern = :page\n                    AND showinsubcontexts = 0\n                    AND subpagepattern IS NULL\n                    AND blockname {$blocksql}";
            $params = array('contextid' => context_system::instance()->id, 'page' => 'my-index');
            $params = array_merge($params, $blockparams);
            $DB->set_field_select('block_instances', 'subpagepattern', $systempage->id, $select, $params);
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2014101001.0);
    }
    if ($oldversion < 2014102000.0) {
        // Define field aggregatesubcats to be dropped from grade_categories.
        $table = new xmldb_table('grade_categories');
        $field = new xmldb_field('aggregatesubcats');
        // Conditionally launch drop field aggregatesubcats.
        if ($dbman->field_exists($table, $field)) {
            $sql = 'SELECT DISTINCT courseid
                      FROM {grade_categories}
                     WHERE aggregatesubcats = ?';
            $courses = $DB->get_records_sql($sql, array(1));
            foreach ($courses as $course) {
                set_config('show_aggregatesubcats_upgrade_' . $course->courseid, 1);
                // Set each of the grade items to needing an update so that when the user visits the grade reports the
                // figures will be updated.
                $DB->set_field('grade_items', 'needsupdate', 1, array('courseid' => $course->courseid));
            }
            $dbman->drop_field($table, $field);
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2014102000.0);
    }
    if ($oldversion < 2014110300.0) {
        // Run script restoring missing folder records for draft file areas.
        upgrade_fix_missing_root_folders_draft();
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2014110300.0);
    }
    // Moodle v2.8.0 release upgrade line.
    // Put any upgrade step following this.
    if ($oldversion < 2014111000.0) {
        // Coming from 2.7 or older, we need to flag the step minmaxgrade to be ignored.
        set_config('upgrade_minmaxgradestepignored', 1);
        // Coming from 2.7 or older, we need to flag the step for changing calculated grades to be regraded.
        set_config('upgrade_calculatedgradeitemsonlyregrade', 1);
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2014111000.0);
    }
    if ($oldversion < 2014120100.0) {
        // Define field sslverification to be added to mnet_host.
        $table = new xmldb_table('mnet_host');
        $field = new xmldb_field('sslverification', XMLDB_TYPE_INTEGER, '1', null, XMLDB_NOTNULL, null, '0', 'applicationid');
        // Conditionally launch add field sslverification.
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2014120100.0);
    }
    if ($oldversion < 2014120101.0) {
        // Define field component to be added to comments.
        $table = new xmldb_table('comments');
        $field = new xmldb_field('component', XMLDB_TYPE_CHAR, '255', null, null, null, null, 'contextid');
        // Conditionally launch add field component.
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2014120101.0);
    }
    if ($oldversion < 2014120102.0) {
        // Define table user_password_history to be created.
        $table = new xmldb_table('user_password_history');
        // Adding fields to table user_password_history.
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('userid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null);
        $table->add_field('hash', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null);
        $table->add_field('timecreated', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null);
        // Adding keys to table user_password_history.
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->add_key('userid', XMLDB_KEY_FOREIGN, array('userid'), 'user', array('id'));
        // Conditionally launch create table for user_password_history.
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2014120102.0);
    }
    if ($oldversion < 2015010800.01) {
        // Make sure the private files handler is not set to expire.
        $DB->set_field('messageinbound_handlers', 'defaultexpiration', 0, array('classname' => '\\core\\message\\inbound\\private_files_handler'));
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2015010800.01);
    }
    if ($oldversion < 2015012600.0) {
        // If the site is using internal and external storage, or just external
        // storage, and the external path specified is empty we change the setting
        // to internal only. That is how the backup code is handling this
        // misconfiguration.
        $storage = (int) get_config('backup', 'backup_auto_storage');
        $folder = get_config('backup', 'backup_auto_destination');
        if ($storage !== 0 && empty($folder)) {
            set_config('backup_auto_storage', 0, 'backup');
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2015012600.0);
    }
    if ($oldversion < 2015012600.01) {
        // Convert calendar_lookahead to nearest new value.
        $value = $DB->get_field('config', 'value', array('name' => 'calendar_lookahead'));
        if ($value > 90) {
            set_config('calendar_lookahead', '120');
        } else {
            if ($value > 60 and $value < 90) {
                set_config('calendar_lookahead', '90');
            } else {
                if ($value > 30 and $value < 60) {
                    set_config('calendar_lookahead', '60');
                } else {
                    if ($value > 21 and $value < 30) {
                        set_config('calendar_lookahead', '30');
                    } else {
                        if ($value > 14 and $value < 21) {
                            set_config('calendar_lookahead', '21');
                        } else {
                            if ($value > 7 and $value < 14) {
                                set_config('calendar_lookahead', '14');
                            }
                        }
                    }
                }
            }
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2015012600.01);
    }
    if ($oldversion < 2015021100.0) {
        // Define field timemodified to be added to registration_hubs.
        $table = new xmldb_table('registration_hubs');
        $field = new xmldb_field('timemodified', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0', 'secret');
        // Conditionally launch add field timemodified.
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2015021100.0);
    }
    if ($oldversion < 2015022401.0) {
        // Define index useridfromto (not unique) to be added to message.
        $table = new xmldb_table('message');
        $index = new xmldb_index('useridfromto', XMLDB_INDEX_NOTUNIQUE, array('useridfrom', 'useridto'));
        // Conditionally launch add index useridfromto.
        if (!$dbman->index_exists($table, $index)) {
            $dbman->add_index($table, $index);
        }
        // Define index useridfromto (not unique) to be added to message_read.
        $table = new xmldb_table('message_read');
        $index = new xmldb_index('useridfromto', XMLDB_INDEX_NOTUNIQUE, array('useridfrom', 'useridto'));
        // Conditionally launch add index useridfromto.
        if (!$dbman->index_exists($table, $index)) {
            $dbman->add_index($table, $index);
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2015022401.0);
    }
    if ($oldversion < 2015022500.0) {
        $table = new xmldb_table('user_devices');
        $index = new xmldb_index('uuid-userid', XMLDB_INDEX_NOTUNIQUE, array('uuid', 'userid'));
        if (!$dbman->index_exists($table, $index)) {
            $dbman->add_index($table, $index);
        }
        upgrade_main_savepoint(true, 2015022500.0);
    }
    if ($oldversion < 2015030400.0) {
        // We have long since switched to storing timemodified per hub rather than a single 'registered' timestamp.
        unset_config('registered');
        upgrade_main_savepoint(true, 2015030400.0);
    }
    if ($oldversion < 2015031100.0) {
        // Unset old config variable.
        unset_config('enabletgzbackups');
        upgrade_main_savepoint(true, 2015031100.0);
    }
    if ($oldversion < 2015031400.0) {
        // Define index useridfrom (not unique) to be dropped form message.
        $table = new xmldb_table('message');
        $index = new xmldb_index('useridfrom', XMLDB_INDEX_NOTUNIQUE, array('useridfrom'));
        // Conditionally launch drop index useridfrom.
        if ($dbman->index_exists($table, $index)) {
            $dbman->drop_index($table, $index);
        }
        // Define index useridfrom (not unique) to be dropped form message_read.
        $table = new xmldb_table('message_read');
        $index = new xmldb_index('useridfrom', XMLDB_INDEX_NOTUNIQUE, array('useridfrom'));
        // Conditionally launch drop index useridfrom.
        if ($dbman->index_exists($table, $index)) {
            $dbman->drop_index($table, $index);
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2015031400.0);
    }
    if ($oldversion < 2015031900.01) {
        unset_config('crontime', 'registration');
        upgrade_main_savepoint(true, 2015031900.01);
    }
    if ($oldversion < 2015032000.0) {
        $table = new xmldb_table('badge_criteria');
        $field = new xmldb_field('description', XMLDB_TYPE_TEXT, null, null, null, null, null);
        // Conditionally add description field to the badge_criteria table.
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        $field = new xmldb_field('descriptionformat', XMLDB_TYPE_INTEGER, 2, null, XMLDB_NOTNULL, null, 0);
        // Conditionally add description format field to the badge_criteria table.
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        upgrade_main_savepoint(true, 2015032000.0);
    }
    if ($oldversion < 2015040200.01) {
        // Force uninstall of deleted tool.
        if (!file_exists("{$CFG->dirroot}/{$CFG->admin}/tool/timezoneimport")) {
            // Remove capabilities.
            capabilities_cleanup('tool_timezoneimport');
            // Remove all other associated config.
            unset_all_config_for_plugin('tool_timezoneimport');
        }
        upgrade_main_savepoint(true, 2015040200.01);
    }
    if ($oldversion < 2015040200.02) {
        // Define table timezone to be dropped.
        $table = new xmldb_table('timezone');
        // Conditionally launch drop table for timezone.
        if ($dbman->table_exists($table)) {
            $dbman->drop_table($table);
        }
        upgrade_main_savepoint(true, 2015040200.02);
    }
    if ($oldversion < 2015040200.03) {
        if (isset($CFG->timezone) and $CFG->timezone == 99) {
            // Migrate to real server timezone.
            unset_config('timezone');
        }
        upgrade_main_savepoint(true, 2015040200.03);
    }
    if ($oldversion < 2015040700.01) {
        $DB->delete_records('config_plugins', array('name' => 'requiremodintro'));
        upgrade_main_savepoint(true, 2015040700.01);
    }
    if ($oldversion < 2015040900.01) {
        // Add "My grades" to the user menu.
        $oldconfig = get_config('core', 'customusermenuitems');
        if (strpos("mygrades,grades|/grade/report/mygrades.php|grades", $oldconfig) === false) {
            $newconfig = "mygrades,grades|/grade/report/mygrades.php|grades\n" . $oldconfig;
            set_config('customusermenuitems', $newconfig);
        }
        upgrade_main_savepoint(true, 2015040900.01);
    }
    if ($oldversion < 2015040900.02) {
        // Update the default user menu (add preferences, remove my files and my badges).
        $oldconfig = get_config('core', 'customusermenuitems');
        // Add "My preferences" at the end.
        if (strpos($oldconfig, "mypreferences,moodle|/user/preference.php|preferences") === false) {
            $newconfig = $oldconfig . "\nmypreferences,moodle|/user/preferences.php|preferences";
        } else {
            $newconfig = $oldconfig;
        }
        // Remove my files.
        $newconfig = str_replace("myfiles,moodle|/user/files.php|download", "", $newconfig);
        // Remove my badges.
        $newconfig = str_replace("mybadges,badges|/badges/mybadges.php|award", "", $newconfig);
        // Remove holes.
        $newconfig = preg_replace('/\\n+/', "\n", $newconfig);
        $newconfig = preg_replace('/(\\r\\n)+/', "\n", $newconfig);
        set_config('customusermenuitems', $newconfig);
        upgrade_main_savepoint(true, 2015040900.02);
    }
    if ($oldversion < 2015050400.0) {
        $config = get_config('core', 'customusermenuitems');
        // Change "My preferences" in the user menu to "Preferences".
        $config = str_replace("mypreferences,moodle|/user/preferences.php|preferences", "preferences,moodle|/user/preferences.php|preferences", $config);
        // Change "My grades" in the user menu to "Grades".
        $config = str_replace("mygrades,grades|/grade/report/mygrades.php|grades", "grades,grades|/grade/report/mygrades.php|grades", $config);
        set_config('customusermenuitems', $config);
        upgrade_main_savepoint(true, 2015050400.0);
    }
    if ($oldversion < 2015050401.0) {
        // Make sure we have messages in the user menu because it's no longer in the nav tree.
        $oldconfig = get_config('core', 'customusermenuitems');
        $messagesconfig = "messages,message|/message/index.php|message";
        $preferencesconfig = "preferences,moodle|/user/preferences.php|preferences";
        // See if it exists.
        if (strpos($oldconfig, $messagesconfig) === false) {
            // See if preferences exists.
            if (strpos($oldconfig, "preferences,moodle|/user/preferences.php|preferences") !== false) {
                // Insert it before preferences.
                $newconfig = str_replace($preferencesconfig, $messagesconfig . "\n" . $preferencesconfig, $oldconfig);
            } else {
                // Custom config - we can only insert it at the end.
                $newconfig = $oldconfig . "\n" . $messagesconfig;
            }
            set_config('customusermenuitems', $newconfig);
        }
        upgrade_main_savepoint(true, 2015050401.0);
    }
    // Moodle v2.9.0 release upgrade line.
    // Put any upgrade step following this.
    if ($oldversion < 2015060400.02) {
        // Sites that were upgrading from 2.7 and older will ignore this step.
        if (empty($CFG->upgrade_minmaxgradestepignored)) {
            upgrade_minmaxgrade();
            // Flags this upgrade step as already run to prevent it from running multiple times.
            set_config('upgrade_minmaxgradestepignored', 1);
        }
        upgrade_main_savepoint(true, 2015060400.02);
    }
    if ($oldversion < 2015061900.0) {
        // MDL-49257. Changed the algorithm of calculating automatic weights of extra credit items.
        // Before the change, in case when grade category (in "Natural" agg. method) had items with
        // overridden weights, the automatic weight of extra credit items was illogical.
        // In order to prevent grades changes after the upgrade we need to freeze gradebook calculation
        // for the affected courses.
        // This script in included in each major version upgrade process so make sure we don't run it twice.
        if (empty($CFG->upgrade_extracreditweightsstepignored)) {
            upgrade_extra_credit_weightoverride();
            // To skip running the same script on the upgrade to the next major release.
            set_config('upgrade_extracreditweightsstepignored', 1);
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2015061900.0);
    }
    if ($oldversion < 2015062500.01) {
        // MDL-48239. Changed calculated grade items so that the maximum and minimum grade can be set.
        // If the changes are accepted and a regrade is done on the gradebook then some grades may change significantly.
        // This is here to freeze the gradebook in affected courses.
        // This script is included in each major version upgrade process so make sure we don't run it twice.
        if (empty($CFG->upgrade_calculatedgradeitemsignored)) {
            upgrade_calculated_grade_items();
            // To skip running the same script on the upgrade to the next major release.
            set_config('upgrade_calculatedgradeitemsignored', 1);
            // This config value is never used again.
            unset_config('upgrade_calculatedgradeitemsonlyregrade');
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2015062500.01);
    }
    if ($oldversion < 2015081300.01) {
        // Define field importtype to be added to grade_import_values.
        $table = new xmldb_table('grade_import_values');
        $field = new xmldb_field('importonlyfeedback', XMLDB_TYPE_INTEGER, '1', null, null, null, '0', 'importer');
        // Conditionally launch add field importtype.
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2015081300.01);
    }
    if ($oldversion < 2015082400.0) {
        // Define table webdav_locks to be dropped.
        $table = new xmldb_table('webdav_locks');
        // Conditionally launch drop table for webdav_locks.
        if ($dbman->table_exists($table)) {
            $dbman->drop_table($table);
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2015082400.0);
    }
    if ($oldversion < 2015090200.0) {
        $table = new xmldb_table('message');
        // Define the deleted fields to be added to the message tables.
        $field1 = new xmldb_field('timeuserfromdeleted', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0', 'timecreated');
        $field2 = new xmldb_field('timeusertodeleted', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0', 'timecreated');
        $oldindex = new xmldb_index('useridfromto', XMLDB_INDEX_NOTUNIQUE, array('useridfrom', 'useridto'));
        $newindex = new xmldb_index('useridfromtodeleted', XMLDB_INDEX_NOTUNIQUE, array('useridfrom', 'useridto', 'timeuserfromdeleted', 'timeusertodeleted'));
        // Conditionally launch add field timeuserfromdeleted.
        if (!$dbman->field_exists($table, $field1)) {
            $dbman->add_field($table, $field1);
        }
        // Conditionally launch add field timeusertodeleted.
        if (!$dbman->field_exists($table, $field2)) {
            $dbman->add_field($table, $field2);
        }
        // Conditionally launch drop index useridfromto.
        if ($dbman->index_exists($table, $oldindex)) {
            $dbman->drop_index($table, $oldindex);
        }
        // Conditionally launch add index useridfromtodeleted.
        if (!$dbman->index_exists($table, $newindex)) {
            $dbman->add_index($table, $newindex);
        }
        // Now add them to the message_read table.
        $table = new xmldb_table('message_read');
        // Conditionally launch add field timeuserfromdeleted.
        if (!$dbman->field_exists($table, $field1)) {
            $dbman->add_field($table, $field1);
        }
        // Conditionally launch add field timeusertodeleted.
        if (!$dbman->field_exists($table, $field2)) {
            $dbman->add_field($table, $field2);
        }
        // Conditionally launch drop index useridfromto.
        if ($dbman->index_exists($table, $oldindex)) {
            $dbman->drop_index($table, $oldindex);
        }
        // Conditionally launch add index useridfromtodeleted.
        if (!$dbman->index_exists($table, $newindex)) {
            $dbman->add_index($table, $newindex);
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2015090200.0);
    }
    if ($oldversion < 2015090801.0) {
        // This upgrade script merges all tag instances pointing to the same course tag.
        // User id is no longer used for those tag instances.
        upgrade_course_tags();
        // If configuration variable "Show course tags" is set, disable the block
        // 'tags' because it can not be used for tagging courses any more.
        if (!empty($CFG->block_tags_showcoursetags)) {
            if ($record = $DB->get_record('block', array('name' => 'tags'), 'id, visible')) {
                if ($record->visible) {
                    $DB->update_record('block', array('id' => $record->id, 'visible' => 0));
                }
            }
        }
        // Define index idname (unique) to be dropped form tag (it's really weird).
        $table = new xmldb_table('tag');
        $index = new xmldb_index('idname', XMLDB_INDEX_UNIQUE, array('id', 'name'));
        // Conditionally launch drop index idname.
        if ($dbman->index_exists($table, $index)) {
            $dbman->drop_index($table, $index);
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2015090801.0);
    }
    if ($oldversion < 2015092200.0) {
        // Define index qtype (not unique) to be added to question.
        $table = new xmldb_table('question');
        $index = new xmldb_index('qtype', XMLDB_INDEX_NOTUNIQUE, array('qtype'));
        // Conditionally launch add index qtype.
        if (!$dbman->index_exists($table, $index)) {
            $dbman->add_index($table, $index);
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2015092200.0);
    }
    if ($oldversion < 2015092900.0) {
        // Rename backup_auto_keep setting to backup_auto_max_kept.
        $keep = get_config('backup', 'backup_auto_keep');
        if ($keep !== false) {
            set_config('backup_auto_max_kept', $keep, 'backup');
            unset_config('backup_auto_keep', 'backup');
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2015092900.0);
    }
    if ($oldversion < 2015100600.0) {
        // Define index notification (not unique) to be added to message_read.
        $table = new xmldb_table('message_read');
        $index = new xmldb_index('notificationtimeread', XMLDB_INDEX_NOTUNIQUE, array('notification', 'timeread'));
        // Conditionally launch add index notification.
        if (!$dbman->index_exists($table, $index)) {
            $dbman->add_index($table, $index);
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2015100600.0);
    }
    if ($oldversion < 2015100800.01) {
        // The only flag for preventing all plugins installation features is
        // now $CFG->disableupdateautodeploy in config.php.
        unset_config('updateautodeploy');
        upgrade_main_savepoint(true, 2015100800.01);
    }
    // Moodle v3.0.0 release upgrade line.
    // Put any upgrade step following this.
    if ($oldversion < 2016011300.01) {
        // This is a big upgrade script. We create new table tag_coll and the field
        // tag.tagcollid pointing to it.
        // Define table tag_coll to be created.
        $table = new xmldb_table('tag_coll');
        // Adding fields to table tagcloud.
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('name', XMLDB_TYPE_CHAR, '255', null, null, null, null);
        $table->add_field('isdefault', XMLDB_TYPE_INTEGER, '2', null, XMLDB_NOTNULL, null, '0');
        $table->add_field('component', XMLDB_TYPE_CHAR, '100', null, null, null, null);
        $table->add_field('sortorder', XMLDB_TYPE_INTEGER, '5', null, XMLDB_NOTNULL, null, '0');
        $table->add_field('searchable', XMLDB_TYPE_INTEGER, '2', null, XMLDB_NOTNULL, null, '1');
        $table->add_field('customurl', XMLDB_TYPE_CHAR, '255', null, null, null, null);
        // Adding keys to table tagcloud.
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        // Conditionally launch create table for tagcloud.
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        // Table {tag}.
        // Define index name (unique) to be dropped form tag - we will replace it with index on (tagcollid,name) later.
        $table = new xmldb_table('tag');
        $index = new xmldb_index('name', XMLDB_INDEX_UNIQUE, array('name'));
        // Conditionally launch drop index name.
        if ($dbman->index_exists($table, $index)) {
            $dbman->drop_index($table, $index);
        }
        // Define field tagcollid to be added to tag, we create it as null first and will change to notnull later.
        $table = new xmldb_table('tag');
        $field = new xmldb_field('tagcollid', XMLDB_TYPE_INTEGER, '10', null, null, null, null, 'userid');
        // Conditionally launch add field tagcloudid.
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2016011300.01);
    }
    if ($oldversion < 2016011300.02) {
        // Create a default tag collection if not exists and update the field tag.tagcollid to point to it.
        if (!($tcid = $DB->get_field_sql('SELECT id FROM {tag_coll} ORDER BY isdefault DESC, sortorder, id', null, IGNORE_MULTIPLE))) {
            $tcid = $DB->insert_record('tag_coll', array('isdefault' => 1, 'sortorder' => 0));
        }
        $DB->execute('UPDATE {tag} SET tagcollid = ? WHERE tagcollid IS NULL', array($tcid));
        // Define index tagcollname (unique) to be added to tag.
        $table = new xmldb_table('tag');
        $index = new xmldb_index('tagcollname', XMLDB_INDEX_UNIQUE, array('tagcollid', 'name'));
        $field = new xmldb_field('tagcollid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null, 'userid');
        // Conditionally launch add index tagcollname.
        if (!$dbman->index_exists($table, $index)) {
            // Launch change of nullability for field tagcollid.
            $dbman->change_field_notnull($table, $field);
            $dbman->add_index($table, $index);
        }
        // Define key tagcollid (foreign) to be added to tag.
        $table = new xmldb_table('tag');
        $key = new xmldb_key('tagcollid', XMLDB_KEY_FOREIGN, array('tagcollid'), 'tag_coll', array('id'));
        // Launch add key tagcloudid.
        $dbman->add_key($table, $key);
        // Define index tagcolltype (not unique) to be added to tag.
        $table = new xmldb_table('tag');
        $index = new xmldb_index('tagcolltype', XMLDB_INDEX_NOTUNIQUE, array('tagcollid', 'tagtype'));
        // Conditionally launch add index tagcolltype.
        if (!$dbman->index_exists($table, $index)) {
            $dbman->add_index($table, $index);
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2016011300.02);
    }
    if ($oldversion < 2016011300.03) {
        // Define table tag_area to be created.
        $table = new xmldb_table('tag_area');
        // Adding fields to table tag_area.
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('component', XMLDB_TYPE_CHAR, '100', null, XMLDB_NOTNULL, null, null);
        $table->add_field('itemtype', XMLDB_TYPE_CHAR, '100', null, XMLDB_NOTNULL, null, null);
        $table->add_field('enabled', XMLDB_TYPE_INTEGER, '2', null, XMLDB_NOTNULL, null, '1');
        $table->add_field('tagcollid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null);
        $table->add_field('callback', XMLDB_TYPE_CHAR, '100', null, null, null, null);
        $table->add_field('callbackfile', XMLDB_TYPE_CHAR, '100', null, null, null, null);
        // Adding keys to table tag_area.
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        $table->add_key('tagcollid', XMLDB_KEY_FOREIGN, array('tagcollid'), 'tag_coll', array('id'));
        // Adding indexes to table tag_area.
        $table->add_index('compitemtype', XMLDB_INDEX_UNIQUE, array('component', 'itemtype'));
        // Conditionally launch create table for tag_area.
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2016011300.03);
    }
    if ($oldversion < 2016011300.04) {
        // Define index itemtype-itemid-tagid-tiuserid (unique) to be dropped form tag_instance.
        $table = new xmldb_table('tag_instance');
        $index = new xmldb_index('itemtype-itemid-tagid-tiuserid', XMLDB_INDEX_UNIQUE, array('itemtype', 'itemid', 'tagid', 'tiuserid'));
        // Conditionally launch drop index itemtype-itemid-tagid-tiuserid.
        if ($dbman->index_exists($table, $index)) {
            $dbman->drop_index($table, $index);
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2016011300.04);
    }
    if ($oldversion < 2016011300.05) {
        $DB->execute("UPDATE {tag_instance} SET component = ? WHERE component IS NULL", array(''));
        // Changing nullability of field component on table tag_instance to not null.
        $table = new xmldb_table('tag_instance');
        $field = new xmldb_field('component', XMLDB_TYPE_CHAR, '100', null, XMLDB_NOTNULL, null, null, 'tagid');
        // Launch change of nullability for field component.
        $dbman->change_field_notnull($table, $field);
        // Changing type of field itemtype on table tag_instance to char.
        $table = new xmldb_table('tag_instance');
        $field = new xmldb_field('itemtype', XMLDB_TYPE_CHAR, '100', null, XMLDB_NOTNULL, null, null, 'component');
        // Launch change of type for field itemtype.
        $dbman->change_field_type($table, $field);
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2016011300.05);
    }
    if ($oldversion < 2016011300.06) {
        // Define index taggeditem (unique) to be added to tag_instance.
        $table = new xmldb_table('tag_instance');
        $index = new xmldb_index('taggeditem', XMLDB_INDEX_UNIQUE, array('component', 'itemtype', 'itemid', 'tiuserid', 'tagid'));
        // Conditionally launch add index taggeditem.
        if (!$dbman->index_exists($table, $index)) {
            $dbman->add_index($table, $index);
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2016011300.06);
    }
    if ($oldversion < 2016011300.07) {
        // Define index taglookup (not unique) to be added to tag_instance.
        $table = new xmldb_table('tag_instance');
        $index = new xmldb_index('taglookup', XMLDB_INDEX_NOTUNIQUE, array('itemtype', 'component', 'tagid', 'contextid'));
        // Conditionally launch add index taglookup.
        if (!$dbman->index_exists($table, $index)) {
            $dbman->add_index($table, $index);
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2016011300.07);
    }
    if ($oldversion < 2016011301.0) {
        // Force uninstall of deleted tool.
        if (!file_exists("{$CFG->dirroot}/webservice/amf")) {
            // Remove capabilities.
            capabilities_cleanup('webservice_amf');
            // Remove all other associated config.
            unset_all_config_for_plugin('webservice_amf');
        }
        upgrade_main_savepoint(true, 2016011301.0);
    }
    if ($oldversion < 2016011901.0) {
        // Convert calendar_lookahead to nearest new value.
        $transaction = $DB->start_delegated_transaction();
        // Count all users who curretly have that preference set (for progress bar).
        $total = $DB->count_records_select('user_preferences', "name = 'calendar_lookahead' AND value != '0'");
        $pbar = new progress_bar('upgradecalendarlookahead', 500, true);
        // Get all these users, one at a time.
        $rs = $DB->get_recordset_select('user_preferences', "name = 'calendar_lookahead' AND value != '0'");
        $i = 0;
        foreach ($rs as $userpref) {
            // Calculate and set new lookahead value.
            if ($userpref->value > 90) {
                $newvalue = 120;
            } else {
                if ($userpref->value > 60 and $userpref->value < 90) {
                    $newvalue = 90;
                } else {
                    if ($userpref->value > 30 and $userpref->value < 60) {
                        $newvalue = 60;
                    } else {
                        if ($userpref->value > 21 and $userpref->value < 30) {
                            $newvalue = 30;
                        } else {
                            if ($userpref->value > 14 and $userpref->value < 21) {
                                $newvalue = 21;
                            } else {
                                if ($userpref->value > 7 and $userpref->value < 14) {
                                    $newvalue = 14;
                                } else {
                                    $newvalue = $userpref->value;
                                }
                            }
                        }
                    }
                }
            }
            $DB->set_field('user_preferences', 'value', $newvalue, array('id' => $userpref->id));
            // Update progress.
            $i++;
            $pbar->update($i, $total, "Upgrading user preference settings - {$i}/{$total}.");
        }
        $rs->close();
        $transaction->allow_commit();
        upgrade_main_savepoint(true, 2016011901.0);
    }
    if ($oldversion < 2016020200.0) {
        // Define field isstandard to be added to tag.
        $table = new xmldb_table('tag');
        $field = new xmldb_field('isstandard', XMLDB_TYPE_INTEGER, '1', null, XMLDB_NOTNULL, null, '0', 'rawname');
        // Conditionally launch add field isstandard.
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        // Define index tagcolltype (not unique) to be dropped form tag.
        $index = new xmldb_index('tagcolltype', XMLDB_INDEX_NOTUNIQUE, array('tagcollid', 'tagtype'));
        // Conditionally launch drop index tagcolltype.
        if ($dbman->index_exists($table, $index)) {
            $dbman->drop_index($table, $index);
        }
        // Define index tagcolltype (not unique) to be added to tag.
        $index = new xmldb_index('tagcolltype', XMLDB_INDEX_NOTUNIQUE, array('tagcollid', 'isstandard'));
        // Conditionally launch add index tagcolltype.
        if (!$dbman->index_exists($table, $index)) {
            $dbman->add_index($table, $index);
        }
        // Define field tagtype to be dropped from tag.
        $field = new xmldb_field('tagtype');
        // Conditionally launch drop field tagtype and update isstandard.
        if ($dbman->field_exists($table, $field)) {
            $DB->execute("UPDATE {tag} SET isstandard=(CASE WHEN (tagtype = ?) THEN 1 ELSE 0 END)", array('official'));
            $dbman->drop_field($table, $field);
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2016020200.0);
    }
    if ($oldversion < 2016020201.0) {
        // Define field showstandard to be added to tag_area.
        $table = new xmldb_table('tag_area');
        $field = new xmldb_field('showstandard', XMLDB_TYPE_INTEGER, '1', null, XMLDB_NOTNULL, null, '0', 'callbackfile');
        // Conditionally launch add field showstandard.
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        // By default set user area to hide standard tags. 2 = core_tag_tag::HIDE_STANDARD (can not use constant here).
        $DB->execute("UPDATE {tag_area} SET showstandard = ? WHERE itemtype = ? AND component = ?", array(2, 'user', 'core'));
        // Changing precision of field enabled on table tag_area to (1).
        $table = new xmldb_table('tag_area');
        $field = new xmldb_field('enabled', XMLDB_TYPE_INTEGER, '1', null, XMLDB_NOTNULL, null, '1', 'itemtype');
        // Launch change of precision for field enabled.
        $dbman->change_field_precision($table, $field);
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2016020201.0);
    }
    if ($oldversion < 2016021500.0) {
        $root = $CFG->tempdir . '/download';
        if (is_dir($root)) {
            // Fetch each repository type - include all repos, not just enabled.
            $repositories = $DB->get_records('repository', array(), '', 'type');
            foreach ($repositories as $id => $repository) {
                $directory = $root . '/repository_' . $repository->type;
                if (is_dir($directory)) {
                    fulldelete($directory);
                }
            }
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2016021500.0);
    }
    if ($oldversion < 2016021501.0) {
        // This could take a long time. Unfortunately, no way to know how long, and no way to do progress, so setting for 1 hour.
        upgrade_set_timeout(3600);
        // Define index userid-itemid (not unique) to be added to grade_grades_history.
        $table = new xmldb_table('grade_grades_history');
        $index = new xmldb_index('userid-itemid-timemodified', XMLDB_INDEX_NOTUNIQUE, array('userid', 'itemid', 'timemodified'));
        // Conditionally launch add index userid-itemid.
        if (!$dbman->index_exists($table, $index)) {
            $dbman->add_index($table, $index);
        }
        // Main savepoint reached.
        upgrade_main_savepoint(true, 2016021501.0);
    }
    return true;
}
Exemplo n.º 28
0
/**
 * Upgrade code for the essay question type.
 * @param int $oldversion the version we are upgrading from.
 */
function xmldb_qtype_essay_upgrade($oldversion) {
    global $CFG, $DB;

    $dbman = $DB->get_manager();

    // Moodle v2.2.0 release upgrade line
    // Put any upgrade step following this.

    if ($oldversion < 2011102701) {
        $sql = "
                  FROM {question} q
                  JOIN {question_answers} qa ON qa.question = q.id

                 WHERE q.qtype = 'essay'
                   AND " . $DB->sql_isnotempty('question_answers', 'feedback', false, true);
        // In Moodle <= 2.0 essay had both question.generalfeedback and question_answers.feedback
        // This was silly, and in Moodel >= 2.1 only question.generalfeedback. To avoid
        // dataloss, we concatenate question_answers.feedback onto the end of question.generalfeedback.
        $count = $DB->count_records_sql("
                SELECT COUNT(1) $sql");
        if ($count) {
            $progressbar = new progress_bar('essay23', 500, true);
            $done = 0;

            $toupdate = $DB->get_recordset_sql("
                    SELECT q.id,
                           q.generalfeedback,
                           q.generalfeedbackformat,
                           qa.feedback,
                           qa.feedbackformat
                    $sql");

            foreach ($toupdate as $data) {
                $progressbar->update($done, $count, "Updating essay feedback ($done/$count).");
                upgrade_set_timeout(60);
                if ($data->generalfeedbackformat == $data->feedbackformat) {
                    $DB->set_field('question', 'generalfeedback',
                            $data->generalfeedback . $data->feedback,
                            array('id' => $data->id));

                } else {
                    $newdata = new stdClass();
                    $newdata->id = $data->id;
                    $newdata->generalfeedback =
                            qtype_essay_convert_to_html($data->generalfeedback, $data->generalfeedbackformat) .
                            qtype_essay_convert_to_html($data->feedback,        $data->feedbackformat);
                    $newdata->generalfeedbackformat = FORMAT_HTML;
                    $DB->update_record('question', $newdata);
                }
            }

            $progressbar->update($count, $count, "Updating essay feedback complete!");
            $toupdate->close();
        }

        // Essay savepoint reached.
        upgrade_plugin_savepoint(true, 2011102701, 'qtype', 'essay');
    }

    if ($oldversion < 2011102702) {
        // Then we delete the old question_answers rows for essay questions.
        $DB->delete_records_select('question_answers',
                "question IN (SELECT id FROM {question} WHERE qtype = 'essay')");

        // Essay savepoint reached.
        upgrade_plugin_savepoint(true, 2011102702, 'qtype', 'essay');
    }

    // Moodle v2.3.0 release upgrade line
    // Put any upgrade step following this.

    // Moodle v2.4.0 release upgrade line
    // Put any upgrade step following this.

    if ($oldversion < 2013011800) {
        // Then we delete the old question_answers rows for essay questions.
        $DB->delete_records_select('qtype_essay_options', "NOT EXISTS (
                SELECT 1 FROM {question} WHERE qtype = 'essay' AND
                    {question}.id = {qtype_essay_options}.questionid)");

        // Essay savepoint reached.
        upgrade_plugin_savepoint(true, 2013011800, 'qtype', 'essay');
    }

    if ($oldversion < 2013021700) {
        // Create new fields responsetemplate and responsetemplateformat in qtyep_essay_options table.
        $table = new xmldb_table('qtype_essay_options');
        $field = new xmldb_field('responsetemplate', XMLDB_TYPE_TEXT, null, null,
                    null, null, null, 'graderinfoformat');
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }

        $field = new xmldb_field('responsetemplateformat', XMLDB_TYPE_INTEGER, '4',
                null, XMLDB_NOTNULL, null, '0', 'responsetemplate');
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }

        $DB->execute("UPDATE {qtype_essay_options} SET responsetemplate = '',
                responsetemplateformat = " . FORMAT_HTML . " WHERE responsetemplate IS NULL");

        // Essay savepoint reached.
        upgrade_plugin_savepoint(true, 2013021700, 'qtype', 'essay');
    }

    // Moodle v2.5.0 release upgrade line.
    // Put any upgrade step following this.


    return true;
}
Exemplo n.º 29
0
/**
 * Quiz module upgrade function.
 * @param string $oldversion the version we are upgrading from.
 */
function xmldb_quiz_upgrade($oldversion) {
    global $CFG, $DB;

    $dbman = $DB->get_manager();

    // Moodle v2.2.0 release upgrade line.
    // Put any upgrade step following this.

    if ($oldversion < 2011120700) {

        // Define field lastcron to be dropped from quiz_reports.
        $table = new xmldb_table('quiz_reports');
        $field = new xmldb_field('lastcron');

        // Conditionally launch drop field lastcron.
        if ($dbman->field_exists($table, $field)) {
            $dbman->drop_field($table, $field);
        }

        // Quiz savepoint reached.
        upgrade_mod_savepoint(true, 2011120700, 'quiz');
    }

    if ($oldversion < 2011120701) {

        // Define field cron to be dropped from quiz_reports.
        $table = new xmldb_table('quiz_reports');
        $field = new xmldb_field('cron');

        // Conditionally launch drop field cron.
        if ($dbman->field_exists($table, $field)) {
            $dbman->drop_field($table, $field);
        }

        // Quiz savepoint reached.
        upgrade_mod_savepoint(true, 2011120701, 'quiz');
    }

    if ($oldversion < 2011120703) {
        // Track page of quiz attempts.
        $table = new xmldb_table('quiz_attempts');

        $field = new xmldb_field('currentpage', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, 0);

        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        upgrade_mod_savepoint(true, 2011120703, 'quiz');
    }

    if ($oldversion < 2012030901) {
        // Configuration option for navigation method.
        $table = new xmldb_table('quiz');

        $field = new xmldb_field('navmethod', XMLDB_TYPE_CHAR, '16', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, 'free');

        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        upgrade_mod_savepoint(true, 2012030901, 'quiz');
    }

    if ($oldversion < 2012040198) {
        // This step was added later. In MDL-32727, it was found that adding the
        // unique index on quiz-userid-attempt sometimes failed because of
        // duplicate entries {quizid}-{userid}-{attempt}. We do two things to
        // prevent these problems. First, here, we delete all preview attempts.

        // This code is an approximate copy-and-paste from
        // question_engine_data_mapper::delete_questions_usage_by_activities
        // Note that, for simplicity, the MySQL performance hack has been removed.
        // Since this code is for upgrade only, performance in not so critical,
        // where as simplicity of testing the code is.

        // Note that there is a limit to how far I am prepared to go in eliminating
        // all calls to library functions in this upgrade code. The only library
        // function still being used in question_engine::get_all_response_file_areas();
        // I think it is pretty safe not to inline it here.

        // Get a list of response variables that have files.
        require_once($CFG->dirroot . '/question/type/questiontypebase.php');
        $variables = array();
        foreach (core_component::get_plugin_list('qtype') as $qtypename => $path) {
            $file = $path . '/questiontype.php';
            if (!is_readable($file)) {
                continue;
            }
            include_once($file);
            $class = 'qtype_' . $qtypename;
            if (!class_exists($class)) {
                continue;
            }
            $qtype = new $class();
            if (!method_exists($qtype, 'response_file_areas')) {
                continue;
            }
            $variables += $qtype->response_file_areas();
        }

        // Conver that to a list of actual file area names.
        $fileareas = array();
        foreach (array_unique($variables) as $variable) {
            $fileareas[] = 'response_' . $variable;
        }
        // No point checking if this is empty as an optimisation, because essay
        // has response file areas, so the array will never be empty.

        // Get all the contexts where there are previews.
        $contextids = $DB->get_records_sql_menu("
                SELECT DISTINCT qu.contextid, 1
                  FROM {question_usages} qu
                  JOIN {quiz_attempts} quiza ON quiza.uniqueid = qu.id
                 WHERE quiza.preview = 1");

        // Loop over contexts and files areas, deleting all files.
        $fs = get_file_storage();
        foreach ($contextids as $contextid => $notused) {
            foreach ($fileareas as $filearea) {
                upgrade_set_timeout(300);
                $fs->delete_area_files_select($contextid, 'question', $filearea,
                        "IN (SELECT qas.id
                               FROM {question_attempt_steps} qas
                               JOIN {question_attempts} qa ON qa.id = qas.questionattemptid
                               JOIN {quiz_attempts} quiza ON quiza.uniqueid = qa.questionusageid
                              WHERE quiza.preview = 1)");
            }
        }

        // Now delete the question data associated with the previews.
        $DB->delete_records_select('question_attempt_step_data', "attemptstepid IN (
                SELECT qas.id
                  FROM {question_attempt_steps} qas
                  JOIN {question_attempts} qa ON qa.id = qas.questionattemptid
                  JOIN {quiz_attempts} quiza ON quiza.uniqueid = qa.questionusageid
                 WHERE quiza.preview = 1)");

        $DB->delete_records_select('question_attempt_steps', "questionattemptid IN (
                SELECT qa.id
                  FROM {question_attempts} qa
                  JOIN {quiz_attempts} quiza ON quiza.uniqueid = qa.questionusageid
                 WHERE quiza.preview = 1)");

        $DB->delete_records_select('question_attempts', "{question_attempts}.questionusageid IN (
                SELECT uniqueid FROM {quiz_attempts} WHERE preview = 1)");

        $DB->delete_records_select('question_usages', "{question_usages}.id IN (
                SELECT uniqueid FROM {quiz_attempts} WHERE preview = 1)");

        // Finally delete the previews.
        $DB->delete_records('quiz_attempts', array('preview' => 1));

        // Quiz savepoint reached.
        upgrade_mod_savepoint(true, 2012040198, 'quiz');
    }

    if ($oldversion < 2012040199) {
        // This step was added later. In MDL-32727, it was found that adding the
        // unique index on quiz-userid-attempt sometimes failed because of
        // duplicate entries {quizid}-{userid}-{attempt}.
        // Here, if there are still duplicate entires, we renumber the values in
        // the attempt column.

        // Load all the problem quiz attempts.
        $problems = $DB->get_recordset_sql('
                SELECT qa.id, qa.quiz, qa.userid, qa.attempt
                  FROM {quiz_attempts} qa
                  JOIN (
                          SELECT DISTINCT quiz, userid
                            FROM {quiz_attempts}
                        GROUP BY quiz, userid, attempt
                          HAVING COUNT(1) > 1
                       ) problems_view ON problems_view.quiz = qa.quiz AND
                                          problems_view.userid = qa.userid
              ORDER BY qa.quiz, qa.userid, qa.attempt, qa.id');

        // Renumber them.
        $currentquiz = null;
        $currentuserid = null;
        $attempt = 1;
        foreach ($problems as $problem) {
            if ($problem->quiz !== $currentquiz || $problem->userid !== $currentuserid) {
                $currentquiz = $problem->quiz;
                $currentuserid = $problem->userid;
                $attempt = 1;
            }
            if ($attempt != $problem->attempt) {
                $DB->set_field('quiz_attempts', 'attempt', $attempt, array('id' => $problem->id));
            }
            $attempt += 1;
        }

        $problems->close();

        // Quiz savepoint reached.
        upgrade_mod_savepoint(true, 2012040199, 'quiz');
    }

    if ($oldversion < 2012040200) {
        // Define index userid to be dropped form quiz_attempts
        $table = new xmldb_table('quiz_attempts');
        $index = new xmldb_index('userid', XMLDB_INDEX_NOTUNIQUE, array('userid'));

        // Conditionally launch drop index quiz-userid-attempt.
        if ($dbman->index_exists($table, $index)) {
            $dbman->drop_index($table, $index);
        }

        // Quiz savepoint reached.
        upgrade_mod_savepoint(true, 2012040200, 'quiz');
    }

    if ($oldversion < 2012040201) {

        // Define key userid (foreign) to be added to quiz_attempts.
        $table = new xmldb_table('quiz_attempts');
        $key = new xmldb_key('userid', XMLDB_KEY_FOREIGN, array('userid'), 'user', array('id'));

        // Launch add key userid.
        $dbman->add_key($table, $key);

        // Quiz savepoint reached.
        upgrade_mod_savepoint(true, 2012040201, 'quiz');
    }

    if ($oldversion < 2012040202) {

        // Define index quiz-userid-attempt (unique) to be added to quiz_attempts.
        $table = new xmldb_table('quiz_attempts');
        $index = new xmldb_index('quiz-userid-attempt', XMLDB_INDEX_UNIQUE, array('quiz', 'userid', 'attempt'));

        // Conditionally launch add index quiz-userid-attempt.
        if (!$dbman->index_exists($table, $index)) {
            $dbman->add_index($table, $index);
        }

        // Quiz savepoint reached.
        upgrade_mod_savepoint(true, 2012040202, 'quiz');
    }

    if ($oldversion < 2012040203) {

        // Define field state to be added to quiz_attempts.
        $table = new xmldb_table('quiz_attempts');
        $field = new xmldb_field('state', XMLDB_TYPE_CHAR, '16', null, XMLDB_NOTNULL, null, 'inprogress', 'preview');

        // Conditionally launch add field state.
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }

        // Quiz savepoint reached.
        upgrade_mod_savepoint(true, 2012040203, 'quiz');
    }

    if ($oldversion < 2012040204) {

        // Update quiz_attempts.state for finished attempts.
        $DB->set_field_select('quiz_attempts', 'state', 'finished', 'timefinish > 0');

        // Other, more complex transitions (basically abandoned attempts), will
        // be handled by cron later.

        // Quiz savepoint reached.
        upgrade_mod_savepoint(true, 2012040204, 'quiz');
    }

    if ($oldversion < 2012040205) {

        // Define field overduehandling to be added to quiz.
        $table = new xmldb_table('quiz');
        $field = new xmldb_field('overduehandling', XMLDB_TYPE_CHAR, '16', null, XMLDB_NOTNULL, null, 'autoabandon', 'timelimit');

        // Conditionally launch add field overduehandling.
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }

        // Quiz savepoint reached.
        upgrade_mod_savepoint(true, 2012040205, 'quiz');
    }

    if ($oldversion < 2012040206) {

        // Define field graceperiod to be added to quiz.
        $table = new xmldb_table('quiz');
        $field = new xmldb_field('graceperiod', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0', 'overduehandling');

        // Conditionally launch add field graceperiod.
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }

        // Quiz savepoint reached.
        upgrade_mod_savepoint(true, 2012040206, 'quiz');
    }

    // Moodle v2.3.0 release upgrade line
    // Put any upgrade step following this

    if ($oldversion < 2012061702) {

        // MDL-32791 somebody reported having nonsense rows in their
        // quiz_question_instances which caused various problems. These rows
        // are meaningless, hence this upgrade step to clean them up.
        $DB->delete_records('quiz_question_instances', array('question' => 0));

        // Quiz savepoint reached.
        upgrade_mod_savepoint(true, 2012061702, 'quiz');
    }

    if ($oldversion < 2012061703) {

        // MDL-34702 the questiondecimalpoints column was created with default -2
        // when it should have been -1, and no-one has noticed in the last 2+ years!

        // Changing the default of field questiondecimalpoints on table quiz to -1.
        $table = new xmldb_table('quiz');
        $field = new xmldb_field('questiondecimalpoints', XMLDB_TYPE_INTEGER, '4', null, XMLDB_NOTNULL, null, '-1', 'decimalpoints');

        // Launch change of default for field questiondecimalpoints.
        $dbman->change_field_default($table, $field);

        // Correct any wrong values.
        $DB->set_field('quiz', 'questiondecimalpoints', -1, array('questiondecimalpoints' => -2));

        // Quiz savepoint reached.
        upgrade_mod_savepoint(true, 2012061703, 'quiz');
    }

    if ($oldversion < 2012100801) {

        // Define field timecheckstate to be added to quiz_attempts
        $table = new xmldb_table('quiz_attempts');
        $field = new xmldb_field('timecheckstate', XMLDB_TYPE_INTEGER, '10', null, null, null, '0', 'timemodified');

        // Conditionally launch add field timecheckstate
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }

        // Define index state-timecheckstate (not unique) to be added to quiz_attempts
        $table = new xmldb_table('quiz_attempts');
        $index = new xmldb_index('state-timecheckstate', XMLDB_INDEX_NOTUNIQUE, array('state', 'timecheckstate'));

        // Conditionally launch add index state-timecheckstate
        if (!$dbman->index_exists($table, $index)) {
            $dbman->add_index($table, $index);
        }

        // Overdue cron no longer needs these
        unset_config('overduelastrun', 'quiz');
        unset_config('overduedoneto', 'quiz');

        // Update timecheckstate on all open attempts
        require_once($CFG->dirroot . '/mod/quiz/locallib.php');
        quiz_update_open_attempts(array());

        // quiz savepoint reached
        upgrade_mod_savepoint(true, 2012100801, 'quiz');
    }

    // Moodle v2.4.0 release upgrade line
    // Put any upgrade step following this

    if ($oldversion < 2013031900) {
        // Quiz manual grading UI should be controlled by mod/quiz:grade, not :viewreports.
        $DB->set_field('quiz_reports', 'capability', 'mod/quiz:grade', array('name' => 'grading'));

        // Mod quiz savepoint reached.
        upgrade_mod_savepoint(true, 2013031900, 'quiz');
    }

    // Moodle v2.5.0 release upgrade line.
    // Put any upgrade step following this.


    // Moodle v2.6.0 release upgrade line.
    // Put any upgrade step following this.

    if ($oldversion < 2014011300) {

        // Define key quiz (foreign) to be dropped form quiz_question_instances.
        $table = new xmldb_table('quiz_question_instances');
        $key = new xmldb_key('quiz', XMLDB_KEY_FOREIGN, array('quiz'), 'quiz', array('id'));

        // Launch drop key quiz.
        $dbman->drop_key($table, $key);

        // Quiz savepoint reached.
        upgrade_mod_savepoint(true, 2014011300, 'quiz');
    }

    if ($oldversion < 2014011301) {

        // Rename field quiz on table quiz_question_instances to quizid.
        $table = new xmldb_table('quiz_question_instances');
        $field = new xmldb_field('quiz', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0', 'id');

        // Launch rename field quiz.
        $dbman->rename_field($table, $field, 'quizid');

        // Quiz savepoint reached.
        upgrade_mod_savepoint(true, 2014011301, 'quiz');
    }

    if ($oldversion < 2014011302) {

        // Define key quizid (foreign) to be added to quiz_question_instances.
        $table = new xmldb_table('quiz_question_instances');
        $key = new xmldb_key('quizid', XMLDB_KEY_FOREIGN, array('quizid'), 'quiz', array('id'));

        // Launch add key quizid.
        $dbman->add_key($table, $key);

        // Quiz savepoint reached.
        upgrade_mod_savepoint(true, 2014011302, 'quiz');
    }

    if ($oldversion < 2014011303) {

        // Define key question (foreign) to be dropped form quiz_question_instances.
        $table = new xmldb_table('quiz_question_instances');
        $key = new xmldb_key('question', XMLDB_KEY_FOREIGN, array('question'), 'question', array('id'));

        // Launch drop key question.
        $dbman->drop_key($table, $key);

        // Quiz savepoint reached.
        upgrade_mod_savepoint(true, 2014011303, 'quiz');
    }

    if ($oldversion < 2014011304) {

        // Rename field question on table quiz_question_instances to questionid.
        $table = new xmldb_table('quiz_question_instances');
        $field = new xmldb_field('question', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0', 'quiz');

        // Launch rename field question.
        $dbman->rename_field($table, $field, 'questionid');

        // Quiz savepoint reached.
        upgrade_mod_savepoint(true, 2014011304, 'quiz');
    }

    if ($oldversion < 2014011305) {

        // Define key questionid (foreign) to be added to quiz_question_instances.
        $table = new xmldb_table('quiz_question_instances');
        $key = new xmldb_key('questionid', XMLDB_KEY_FOREIGN, array('questionid'), 'question', array('id'));

        // Launch add key questionid.
        $dbman->add_key($table, $key);

        // Quiz savepoint reached.
        upgrade_mod_savepoint(true, 2014011305, 'quiz');
    }

    if ($oldversion < 2014011306) {

        // Rename field grade on table quiz_question_instances to maxmark.
        $table = new xmldb_table('quiz_question_instances');
        $field = new xmldb_field('grade', XMLDB_TYPE_NUMBER, '12, 7', null, XMLDB_NOTNULL, null, '0', 'question');

        // Launch rename field grade.
        $dbman->rename_field($table, $field, 'maxmark');

        // Quiz savepoint reached.
        upgrade_mod_savepoint(true, 2014011306, 'quiz');
    }

    return true;
}
Exemplo n.º 30
0
/**
 * Upgrade moodle core
 * @param float $version target version
 * @param bool $verbose
 * @return void, may throw exception
 */
function upgrade_core($version, $verbose) {
    global $CFG, $SITE, $DB, $COURSE;

    raise_memory_limit(MEMORY_EXTRA);

    require_once($CFG->libdir.'/db/upgrade.php');    // Defines upgrades

    try {
        // Reset caches before any output.
        cache_helper::purge_all(true);
        purge_all_caches();

        // Upgrade current language pack if we can
        upgrade_language_pack();

        print_upgrade_part_start('moodle', false, $verbose);

        // Pre-upgrade scripts for local hack workarounds.
        $preupgradefile = "$CFG->dirroot/local/preupgrade.php";
        if (file_exists($preupgradefile)) {
            core_php_time_limit::raise();
            require($preupgradefile);
            // Reset upgrade timeout to default.
            upgrade_set_timeout();
        }

        $result = xmldb_main_upgrade($CFG->version);
        if ($version > $CFG->version) {
            // store version if not already there
            upgrade_main_savepoint($result, $version, false);
        }

        // In case structure of 'course' table has been changed and we forgot to update $SITE, re-read it from db.
        $SITE = $DB->get_record('course', array('id' => $SITE->id));
        $COURSE = clone($SITE);

        // perform all other component upgrade routines
        update_capabilities('moodle');
        log_update_descriptions('moodle');
        external_update_descriptions('moodle');
        events_update_definition('moodle');
        \core\task\manager::reset_scheduled_tasks_for_component('moodle');
        message_update_providers('moodle');
        \core\message\inbound\manager::update_handlers_for_component('moodle');
        // Update core definitions.
        cache_helper::update_definitions(true);

        // Purge caches again, just to be sure we arn't holding onto old stuff now.
        cache_helper::purge_all(true);
        purge_all_caches();

        // Clean up contexts - more and more stuff depends on existence of paths and contexts
        context_helper::cleanup_instances();
        context_helper::create_instances(null, false);
        context_helper::build_all_paths(false);
        $syscontext = context_system::instance();
        $syscontext->mark_dirty();

        print_upgrade_part_end('moodle', false, $verbose);
    } catch (Exception $ex) {
        upgrade_handle_exception($ex);
    }
}