示例#1
0
function xmldb_hotpot_upgrade($oldversion)
{
    global $CFG, $DB;
    $dbman = $DB->get_manager();
    $result = true;
    //===== 1.9.0 upgrade line ======//
    // update hotpot grades from sites earlier than Moodle 1.9, 27th March 2008
    if ($result && $oldversion < 2007101511) {
        // ensure "hotpot_upgrade_grades" function is available
        require_once $CFG->dirroot . '/mod/hotpot/lib.php';
        hotpot_upgrade_grades();
        upgrade_mod_savepoint(true, 2007101511, 'hotpot');
    }
    if ($result && $oldversion < 2008011200) {
        // remove not used setting
        unset_config('hotpot_initialdisable');
        upgrade_mod_savepoint(true, 2008011200, 'hotpot');
    }
    return $result;
}
示例#2
0
/**
 * xmldb_hotpot_upgrade
 *
 * @param xxx $oldversion
 * @return xxx
 */
function xmldb_hotpot_upgrade($oldversion)
{
    global $CFG, $DB;
    // this flag will be set to true if any upgrade needs to empty the HotPot cache
    $empty_cache = false;
    $dbman = $DB->get_manager();
    //===== 1.9.0 upgrade line ======//
    // update hotpot grades from sites earlier than Moodle 1.9, 27th March 2008
    $newversion = 2007101511;
    if ($oldversion < $newversion) {
        // ensure "hotpot_upgrade_grades" function is available
        require_once $CFG->dirroot . '/mod/hotpot/lib.php';
        hotpot_upgrade_grades();
        upgrade_mod_savepoint(true, "{$newversion}", 'hotpot');
    }
    $newversion = 2008011200;
    if ($oldversion < $newversion) {
        // remove unused config setting
        unset_config('hotpot_initialdisable');
        upgrade_mod_savepoint(true, "{$newversion}", 'hotpot');
    }
    $newversion = 2010080301;
    if ($oldversion < $newversion) {
        // remove unused config settings
        unset_config('hotpot_showtimes');
        unset_config('hotpot_excelencodings');
        // modify table: hotpot
        $table = new xmldb_table('hotpot');
        // expected structure of hotpot table when we start this upgrade:
        // (i.e. this is how things were at the end of Moodle 1.9)
        //   id, course, name, summary, timeopen, timeclose, location, reference,
        //   outputformat, navigation, studentfeedback, studentfeedbackurl,
        //   forceplugins, shownextquiz, review, grade, grademethod, attempts,
        //   password, subnet, clickreporting, timecreated, timemodified
        // convert, move and rename fields ($newname => $oldfield)
        $fields = array('outputformat' => new xmldb_field('outputformat', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL), 'timeopen' => new xmldb_field('timeopen', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0', 'studentfeedbackurl'), 'timeclose' => new xmldb_field('timeclose', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0', 'timeopen'), 'grademethod' => new xmldb_field('grademethod', XMLDB_TYPE_INTEGER, '4', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0', 'grade'), 'sourcefile' => new xmldb_field('reference', XMLDB_TYPE_CHAR, '255', null, null, null, null, 'name'), 'sourcelocation' => new xmldb_field('location', XMLDB_TYPE_INTEGER, '4', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0', 'sourcefile'), 'entrytext' => new xmldb_field('summary', XMLDB_TYPE_TEXT, 'small', null, null, null, null, 'sourcelocation'), 'reviewoptions' => new xmldb_field('review', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0'), 'attemptlimit' => new xmldb_field('attempts', XMLDB_TYPE_INTEGER, '6', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0', 'reviewoptions'), 'gradeweighting' => new xmldb_field('grade', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0', 'attemptlimit'));
        foreach ($fields as $newname => $field) {
            if ($dbman->field_exists($table, $field)) {
                xmldb_hotpot_fix_previous_field($dbman, $table, $field);
                $dbman->change_field_type($table, $field);
                if ($field->getName() != $newname) {
                    $dbman->rename_field($table, $field, $newname);
                }
            }
        }
        // add fields
        $fields = array(new xmldb_field('sourcefile', XMLDB_TYPE_CHAR, '255', null, null, null, null, 'name'), new xmldb_field('sourcetype', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, 'sourcefile'), new xmldb_field('sourceitemid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0', 'sourcetype'), new xmldb_field('sourcelocation', XMLDB_TYPE_INTEGER, '4', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0', 'sourceitemid'), new xmldb_field('configfile', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, 'sourcelocation'), new xmldb_field('configitemid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0', 'configfile'), new xmldb_field('configlocation', XMLDB_TYPE_INTEGER, '4', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0', 'configitemid'), new xmldb_field('entrycm', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0', 'configlocation'), new xmldb_field('entrygrade', XMLDB_TYPE_INTEGER, '6', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '100', 'entrycm'), new xmldb_field('entrypage', XMLDB_TYPE_INTEGER, '2', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0', 'entrygrade'), new xmldb_field('entrytext', XMLDB_TYPE_TEXT, 'small', null, null, null, null, 'entrypage'), new xmldb_field('entryformat', XMLDB_TYPE_INTEGER, '4', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0', 'entrytext'), new xmldb_field('entryoptions', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0', 'entryformat'), new xmldb_field('exitpage', XMLDB_TYPE_INTEGER, '2', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0', 'entryoptions'), new xmldb_field('exittext', XMLDB_TYPE_TEXT, 'small', null, null, null, null, 'exitpage'), new xmldb_field('exitformat', XMLDB_TYPE_INTEGER, '4', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0', 'exittext'), new xmldb_field('exitoptions', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0', 'exitformat'), new xmldb_field('exitcm', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0', 'exitoptions'), new xmldb_field('title', XMLDB_TYPE_INTEGER, '6', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '3', 'navigation'), new xmldb_field('stopbutton', XMLDB_TYPE_INTEGER, '2', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0', 'title'), new xmldb_field('stoptext', XMLDB_TYPE_CHAR, '255', null, null, null, null, 'stopbutton'), new xmldb_field('usefilters', XMLDB_TYPE_INTEGER, '2', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0', 'stoptext'), new xmldb_field('useglossary', XMLDB_TYPE_INTEGER, '2', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0', 'usefilters'), new xmldb_field('usemediafilter', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, 'useglossary'), new xmldb_field('timelimit', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0', 'timeclose'), new xmldb_field('delay1', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0', 'timelimit'), new xmldb_field('delay2', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0', 'delay1'), new xmldb_field('delay3', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '2', 'delay2'), new xmldb_field('discarddetails', XMLDB_TYPE_INTEGER, '2', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0', 'clickreporting'));
        foreach ($fields as $field) {
            if (!$dbman->field_exists($table, $field)) {
                xmldb_hotpot_fix_previous_field($dbman, $table, $field);
                $dbman->add_field($table, $field);
            }
        }
        // remove field: forceplugins (replaced by "usemediafilter")
        $field = new xmldb_field('forceplugins', XMLDB_TYPE_INTEGER, '4', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0');
        if ($dbman->field_exists($table, $field)) {
            $DB->execute('UPDATE {hotpot} SET ' . "usemediafilter='moodle'" . ' WHERE forceplugins=1');
            $dbman->drop_field($table, $field);
        }
        // remove field: shownextquiz (replaced by "exitcm")
        $field = new xmldb_field('shownextquiz', XMLDB_TYPE_INTEGER, '4', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0');
        if ($dbman->field_exists($table, $field)) {
            // set exitcm to show next HotPot: -4 = hotpot::ACTIVITY_SECTION_HOTPOT
            $DB->execute('UPDATE {hotpot} SET exitcm=-4 WHERE shownextquiz=1');
            $dbman->drop_field($table, $field);
        }
        // append "id" to fields that are foreign keys in other hotpot tables
        $fields = array('hotpot_attempts' => array('hotpot'), 'hotpot_details' => array('attempt'), 'hotpot_questions' => array('hotpot'), 'hotpot_responses' => array('attempt', 'question'));
        foreach ($fields as $tablename => $fieldnames) {
            $table = new xmldb_table($tablename);
            foreach ($fieldnames as $fieldname) {
                $field = new xmldb_field($fieldname, XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0');
                if ($dbman->field_exists($table, $field)) {
                    // maybe we should remove all indexes and keys
                    // using this $fieldname before we rename the field
                    $dbman->rename_field($table, $field, $fieldname . 'id');
                }
            }
        }
        // create new table: hotpot_cache
        $table = new xmldb_table('hotpot_cache');
        if (!$dbman->table_exists($table)) {
            $table->add_field('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
            $table->add_field('hotpotid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0');
            $table->add_field('slasharguments', XMLDB_TYPE_CHAR, '1', null, XMLDB_NOTNULL);
            $table->add_field('hotpot_enableobfuscate', XMLDB_TYPE_CHAR, '1', null, XMLDB_NOTNULL);
            $table->add_field('hotpot_enableswf', XMLDB_TYPE_CHAR, '1', null, XMLDB_NOTNULL);
            $table->add_field('name', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL);
            $table->add_field('sourcefile', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL);
            $table->add_field('sourcetype', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL);
            $table->add_field('sourcelocation', XMLDB_TYPE_INTEGER, '2', XMLDB_UNSIGNED, XMLDB_NOTNULL);
            $table->add_field('sourcelastmodified', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL);
            $table->add_field('sourceetag', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL);
            $table->add_field('configfile', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL);
            $table->add_field('configlocation', XMLDB_TYPE_INTEGER, '2', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0');
            $table->add_field('configlastmodified', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL);
            $table->add_field('configetag', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL);
            $table->add_field('navigation', XMLDB_TYPE_INTEGER, '4', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0');
            $table->add_field('title', XMLDB_TYPE_INTEGER, '6', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0');
            $table->add_field('stopbutton', XMLDB_TYPE_INTEGER, '2', XMLDB_UNSIGNED, null, null, '0');
            $table->add_field('stoptext', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL);
            $table->add_field('usefilters', XMLDB_TYPE_INTEGER, '4', XMLDB_UNSIGNED, null, null, '0');
            $table->add_field('useglossary', XMLDB_TYPE_INTEGER, '4', XMLDB_UNSIGNED, null, null, '0');
            $table->add_field('usemediafilter', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, '0');
            $table->add_field('studentfeedback', XMLDB_TYPE_INTEGER, '4', null, XMLDB_NOTNULL, null, '0');
            $table->add_field('studentfeedbackurl', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL);
            $table->add_field('timelimit', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0');
            $table->add_field('delay3', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '-1');
            $table->add_field('clickreporting', XMLDB_TYPE_INTEGER, '2', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0');
            $table->add_field('content', XMLDB_TYPE_TEXT, 'medium', null, XMLDB_NOTNULL);
            $table->add_field('timemodified', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL);
            $table->add_field('md5key', XMLDB_TYPE_CHAR, '32', null, XMLDB_NOTNULL);
            // Add keys to table hotpot_cache
            $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
            $table->add_key('hotpotid', XMLDB_KEY_FOREIGN, array('hotpotid'), 'hotpot', array('id'));
            // Add indexes to table hotpot_cache
            $table->add_index('hotpotid-md5key', XMLDB_INDEX_NOTUNIQUE, array('hotpotid', 'md5key'));
            $dbman->create_table($table);
        }
        // add new logging actions
        log_update_descriptions('mod/hotpot');
        // hotpot savepoint reached
        upgrade_mod_savepoint(true, "{$newversion}", 'hotpot');
    }
    $newversion = 2010080302;
    if ($oldversion < $newversion) {
        // navigation setting of "none" is now "0" (was "6")
        $DB->execute('UPDATE {hotpot} SET navigation=0 WHERE navigation=6');
        // navigation's "give up" button, is replaced by the "stopbutton" field
        $DB->execute('UPDATE {hotpot} SET stopbutton=0 WHERE navigation=5');
        $DB->execute('UPDATE {hotpot} SET navigation=0 WHERE navigation=5');
        upgrade_mod_savepoint(true, "{$newversion}", 'hotpot');
    }
    $newversion = 2010080303;
    if ($oldversion < $newversion) {
        // modify table: hotpot_attempts
        $table = new xmldb_table('hotpot_attempts');
        // add field: timemodified
        $field = new xmldb_field('timemodified', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0');
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
            $DB->execute('UPDATE {hotpot_attempts} SET timemodified = timefinish WHERE timemodified=0');
            $DB->execute('UPDATE {hotpot_attempts} SET timemodified = timestart  WHERE timemodified=0');
        }
        upgrade_mod_savepoint(true, "{$newversion}", 'hotpot');
    }
    $newversion = 2010080305;
    if ($oldversion < $newversion) {
        // modify table: hotpot
        $table = new xmldb_table('hotpot');
        // change fields
        //  - entrycm         (-> signed)
        //  - outputformat    (-> varchar)
        //  - timelimit       (-> signed)
        //  - delay3          (-> signed)
        //  - attemptlimit    (-> unsigned)
        //  - gradeweighting  (-> unsigned)
        //  - grademethod     (-> unsigned)
        $fields = array(new xmldb_field('entrycm', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0'), new xmldb_field('outputformat', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL), new xmldb_field('timelimit', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0'), new xmldb_field('delay3', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '2'), new xmldb_field('attemptlimit', XMLDB_TYPE_INTEGER, '6', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0'), new xmldb_field('gradeweighting', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0'), new xmldb_field('grademethod', XMLDB_TYPE_INTEGER, '4', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0'));
        foreach ($fields as $field) {
            if ($dbman->field_exists($table, $field)) {
                xmldb_hotpot_fix_previous_field($dbman, $table, $field);
                $dbman->change_field_type($table, $field);
            }
        }
        upgrade_mod_savepoint(true, "{$newversion}", 'hotpot');
    }
    $newversion = 2010080306;
    if ($oldversion < $newversion) {
        // modify table: hotpot
        $table = new xmldb_table('hotpot');
        // rename field: gradelimit -> gradeweighting
        $field = new xmldb_field('gradelimit', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0');
        if ($dbman->field_exists($table, $field)) {
            $dbman->rename_field($table, $field, 'gradeweighting');
        }
        upgrade_mod_savepoint(true, "{$newversion}", 'hotpot');
    }
    $newversion = 2010080308;
    if ($oldversion < $newversion) {
        // add display fields to hotpot
        // (these fields were missing from access.xml so won't be on new sites)
        $tables = array('hotpot' => array(new xmldb_field('title', XMLDB_TYPE_INTEGER, '6', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '3', 'navigation'), new xmldb_field('stopbutton', XMLDB_TYPE_INTEGER, '2', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0', 'title'), new xmldb_field('stoptext', XMLDB_TYPE_CHAR, '255', null, null, null, null, 'stopbutton'), new xmldb_field('usefilters', XMLDB_TYPE_INTEGER, '2', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0', 'stoptext'), new xmldb_field('useglossary', XMLDB_TYPE_INTEGER, '2', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0', 'usefilters'), new xmldb_field('usemediafilter', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, 'useglossary')));
        foreach ($tables as $tablename => $fields) {
            $table = new xmldb_table($tablename);
            foreach ($fields as $field) {
                xmldb_hotpot_fix_previous_field($dbman, $table, $field);
                if ($dbman->field_exists($table, $field)) {
                    $dbman->change_field_type($table, $field);
                } else {
                    $dbman->add_field($table, $field);
                }
            }
        }
        $table = new xmldb_table('hotpot');
        $field = new xmldb_field('forceplugins', XMLDB_TYPE_INTEGER, '4', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0');
        if ($dbman->field_exists($table, $field)) {
            $DB->execute('UPDATE {hotpot} SET ' . "usemediafilter='moodle'" . ' WHERE forceplugins=1');
            $dbman->drop_field($table, $field);
        }
        // force certain fields to be not null
        $tables = array('hotpot' => array(new xmldb_field('entrygrade', XMLDB_TYPE_INTEGER, '6', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '100')), 'hotpot_cache' => array(new xmldb_field('stopbutton', XMLDB_TYPE_INTEGER, '2', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0'), new xmldb_field('usefilters', XMLDB_TYPE_INTEGER, '2', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0'), new xmldb_field('useglossary', XMLDB_TYPE_INTEGER, '2', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0'), new xmldb_field('studentfeedback', XMLDB_TYPE_INTEGER, '4', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0')));
        foreach ($tables as $tablename => $fields) {
            $table = new xmldb_table($tablename);
            foreach ($fields as $field) {
                if ($dbman->field_exists($table, $field)) {
                    $dbman->change_field_type($table, $field);
                }
            }
        }
        upgrade_mod_savepoint(true, "{$newversion}", 'hotpot');
    }
    $newversion = 2010080309;
    if ($oldversion < $newversion) {
        // force certain text fields to be not null
        $tables = array('hotpot' => array(new xmldb_field('sourcefile', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL), new xmldb_field('entrytext', XMLDB_TYPE_TEXT, 'small', null, XMLDB_NOTNULL), new xmldb_field('exittext', XMLDB_TYPE_TEXT, 'small', null, XMLDB_NOTNULL), new xmldb_field('stoptext', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL)));
        foreach ($tables as $tablename => $fields) {
            $table = new xmldb_table($tablename);
            foreach ($fields as $field) {
                if ($dbman->field_exists($table, $field)) {
                    $fieldname = $field->getName();
                    $DB->set_field_select($tablename, $fieldname, '', "{$fieldname} IS NULL");
                    $dbman->change_field_type($table, $field);
                }
            }
        }
        upgrade_mod_savepoint(true, "{$newversion}", 'hotpot');
    }
    $newversion = 2010080311;
    if ($oldversion < $newversion) {
        require_once $CFG->dirroot . '/mod/hotpot/locallib.php';
        /////////////////////////////////////
        /// new file storage migrate code ///
        /////////////////////////////////////
        // set up sql strings to select HotPots with Moodle 1.x file paths (i.e. no leading slash)
        $strupdating = get_string('migratingfiles', 'hotpot');
        $select = 'h.*, cm.id AS cmid';
        $from = '{hotpot} h, {course_modules} cm, {modules} m';
        $where = 'm.name=? AND m.id=cm.module AND cm.instance=h.id AND h.sourcefile<>?' . ' AND ' . $DB->sql_like('h.sourcefile', '?', false, false, true);
        // NOT LIKE
        $params = array('hotpot', '', '/%', 0);
        $orderby = 'h.course, h.id';
        // get HotPot records that need to be updated
        if ($count = $DB->count_records_sql("SELECT COUNT('x') FROM {$from} WHERE {$where}", $params)) {
            $rs = $DB->get_recordset_sql("SELECT {$select} FROM {$from} WHERE {$where} ORDER BY {$orderby}", $params);
        } else {
            $rs = false;
        }
        if ($rs) {
            $i = 0;
            $bar = new progress_bar('hotpotmigratefiles', 500, true);
            // get file storage object
            $fs = get_file_storage();
            if (class_exists('context_course')) {
                $sitecontext = context_course::instance(SITEID);
            } else {
                $sitecontext = get_context_instance(CONTEXT_COURSE, SITEID);
            }
            $coursecontext = null;
            $modulecontext = null;
            foreach ($rs as $hotpot) {
                // apply for more script execution time (3 mins)
                upgrade_set_timeout();
                // get course context for this $hotpot
                if ($coursecontext === null || $coursecontext->instanceid != $hotpot->course) {
                    if (class_exists('context_course')) {
                        $coursecontext = context_course::instance($hotpot->course);
                    } else {
                        $coursecontext = get_context_instance(CONTEXT_COURSE, $hotpot->course);
                    }
                }
                // get module context for this $hotpot/$task
                if ($modulecontext === null || $modulecontext->instanceid != $hotpot->cmid) {
                    if (class_exists('context_module')) {
                        $modulecontext = context_module::instance($hotpot->cmid);
                    } else {
                        $modulecontext = get_context_instance(CONTEXT_MODULE, $hotpot->cmid);
                    }
                }
                // actually there shouldn't be any urls in HotPot activities,
                // but this code will also be used to convert QuizPort to TaskChain
                if (preg_match('/^https?:\\/\\//i', $hotpot->sourcefile)) {
                    $url = $hotpot->sourcefile;
                    $path = parse_url($url, PHP_URL_PATH);
                } else {
                    $url = '';
                    $path = $hotpot->sourcefile;
                }
                $path = clean_param($path, PARAM_PATH);
                // this information should be enough to access the file
                // if it has been migrated into Moodle 2.0 file system
                $old_filename = basename($path);
                $old_filepath = dirname($path);
                if ($old_filepath == '.' || $old_filepath == '') {
                    $old_filepath = '/';
                } else {
                    $old_filepath = '/' . ltrim($old_filepath, '/');
                    // require leading slash
                    $old_filepath = rtrim($old_filepath, '/') . '/';
                    // require trailing slash
                }
                // update $hotpot->sourcefile, if necessary
                if ($hotpot->sourcefile != $old_filepath . $old_filename) {
                    $hotpot->sourcefile = $old_filepath . $old_filename;
                    $DB->set_field('hotpot', 'sourcefile', $hotpot->sourcefile, array('id' => $hotpot->id));
                }
                // set $courseid and $contextid from $task->$location
                // of where we expect to find the $file
                //   0 : HOTPOT_LOCATION_COURSEFILES
                //   1 : HOTPOT_LOCATION_SITEFILES
                //   2 : HOTPOT_LOCATION_WWW (not used)
                if ($hotpot->sourcelocation) {
                    $courseid = SITEID;
                    $contextid = $sitecontext->id;
                } else {
                    $courseid = $hotpot->course;
                    $contextid = $coursecontext->id;
                }
                // we expect to need the $filehash to get a file that has been migrated
                $filehash = sha1('/' . $contextid . '/course/legacy/0' . $old_filepath . $old_filename);
                // we might also need the old file path, if the file has not been migrated
                $oldfilepath = $CFG->dataroot . '/' . $courseid . $old_filepath . $old_filename;
                // set parameters used to add file to filearea
                // (sortorder=1 siginifies the "mainfile" in this filearea)
                $file_record = array('contextid' => $modulecontext->id, 'component' => 'mod_hotpot', 'filearea' => 'sourcefile', 'sortorder' => 1, 'itemid' => 0, 'filepath' => $old_filepath, 'filename' => $old_filename);
                // initialize sourcefile settings
                $hotpot->sourcefile = $old_filepath . $old_filename;
                $hotpot->sourcetype = '';
                $hotpot->sourceitemid = 0;
                if ($file = $fs->get_file($modulecontext->id, 'mod_hotpot', 'sourcefile', 0, $old_filepath, $old_filename)) {
                    // file already exists for this context - shouldn't happen !!
                    // maybe an earlier upgrade failed for some reason ?
                    // anyway we must do this check, so that create_file_from_xxx() does not abort
                } else {
                    if ($url) {
                        // file is on an external url - unusual ?!
                        $file = false;
                        // $fs->create_file_from_url($file_record, $url);
                    } else {
                        if ($file = $fs->get_file_by_hash($filehash)) {
                            // $file has already been migrated to Moodle's file system
                            // this is the route we expect most people to come :-)
                            $file = $fs->create_file_from_storedfile($file_record, $file);
                        } else {
                            if (file_exists($oldfilepath)) {
                                // $file still exists on server's filesystem - unusual ?!
                                $file = $fs->create_file_from_pathname($file_record, $oldfilepath);
                            } else {
                                // file was not migrated and is not on server's filesystem
                                $file = false;
                            }
                        }
                    }
                }
                // if source file did not exist, notify user of the problem
                if (empty($file)) {
                    if ($url) {
                        $msg = "course_modules.id={$hotpot->cmid}, url={$url}";
                    } else {
                        $msg = "course_modules.id={$hotpot->cmid}, path={$path}";
                    }
                    $params = array('update' => $hotpot->cmid, 'onclick' => 'this.target="_blank"');
                    $msg = html_writer::link(new moodle_url('/course/modedit.php', $params), $msg);
                    $msg = get_string('sourcefilenotfound', 'hotpot', $msg);
                    echo html_writer::tag('div', $msg, array('class' => 'notifyproblem'));
                }
                // set $hotpot->sourcetype
                if ($pos = strrpos($hotpot->sourcefile, '.')) {
                    $filetype = substr($hotpot->sourcefile, $pos + 1);
                    switch ($filetype) {
                        case 'jcl':
                            $hotpot->sourcetype = 'hp_6_jcloze_xml';
                            break;
                        case 'jcw':
                            $hotpot->sourcetype = 'hp_6_jcross_xml';
                            break;
                        case 'jmt':
                            $hotpot->sourcetype = 'hp_6_jmatch_xml';
                            break;
                        case 'jmx':
                            $hotpot->sourcetype = 'hp_6_jmix_xml';
                            break;
                        case 'jqz':
                            $hotpot->sourcetype = 'hp_6_jquiz_xml';
                            break;
                        case 'rhb':
                            $hotpot->sourcetype = 'hp_6_rhubarb_xml';
                            break;
                        case 'sqt':
                            $hotpot->sourcetype = 'hp_6_sequitur_xml';
                            break;
                        case 'htm':
                        case 'html':
                        default:
                            if ($file) {
                                $pathnamehash = $fs->get_pathname_hash($modulecontext->id, 'mod_hotpot', 'sourcefile', 0, $old_filepath, $old_filename);
                                if ($contenthash = $DB->get_field('files', 'contenthash', array('pathnamehash' => $pathnamehash))) {
                                    $l1 = $contenthash[0] . $contenthash[1];
                                    $l2 = $contenthash[2] . $contenthash[3];
                                    if (file_exists("{$CFG->dataroot}/filedir/{$l1}/{$l2}/{$contenthash}")) {
                                        $hotpot->sourcetype = hotpot::get_sourcetype($file);
                                    } else {
                                        $msg = html_writer::link(new moodle_url('/course/modedit.php', array('update' => $hotpot->cmid)), "course_modules.id={$hotpot->cmid}, path={$path}");
                                        $msg .= html_writer::empty_tag('br');
                                        $msg .= "filedir path={$l1}/{$l2}/{$contenthash}";
                                        $msg = get_string('sourcefilenotfound', 'hotpot', $msg);
                                        echo html_writer::tag('div', $msg, array('class' => 'notifyproblem'));
                                    }
                                }
                            }
                    }
                }
                // JMatch has 2 output formats
                //     14 : v6  : drop down menus : hp_6_jmatch_xml_v6
                //     15 : v6+ : drag-and-drop   : hp_6_jmatch_xml_v6_plus
                // JMix has 2 output formats
                //     14 : v6  : links           : hp_6_jmix_xml_v6
                //     15 : v6+ : drag-and-drop   : hp_6_jmix_xml_v6_plus
                // since drag-and-drop is the "best" outputformat for both types of quiz,
                // we only need to worry about HotPots whose outputformat was 14 (="v6")
                // set $hotpot->outputformat
                if ($hotpot->outputformat == 14 && ($hotpot->sourcetype == 'hp_6_jmatch_xml' || $hotpot->sourcetype == 'hp_6_jmix_xml')) {
                    $hotpot->outputformat = $hotpot->sourcetype . '_v6';
                } else {
                    $hotpot->outputformat = '';
                    //  = "best" output format
                }
                $DB->update_record('hotpot', $hotpot);
                // update progress bar
                $i++;
                $bar->update($i, $count, $strupdating . ": ({$i}/{$count})");
            }
            $rs->close();
        }
        upgrade_mod_savepoint(true, "{$newversion}", 'hotpot');
    }
    $newversion = 2010080316;
    if ($oldversion < $newversion) {
        // because the HotPot activities were probably hidden until now
        // we need to reset the course caches (using "course/lib.php")
        require_once $CFG->dirroot . '/course/lib.php';
        $courseids = array();
        if ($hotpots = $DB->get_records('hotpot', null, '', 'id,course')) {
            foreach ($hotpots as $hotpot) {
                $courseids[$hotpot->course] = true;
            }
            $courseids = array_keys($courseids);
        }
        unset($hotpots, $hotpot);
        foreach ($courseids as $courseid) {
            rebuild_course_cache($courseid, true);
        }
        unset($courseids, $courseid);
        // reset theme cache to force inclusion of new hotpot css
        theme_reset_all_caches();
        upgrade_mod_savepoint(true, "{$newversion}", 'hotpot');
    }
    $newversion = 2010080325;
    if ($oldversion < $newversion) {
        $table = new xmldb_table('hotpot');
        $fieldnames = array('sourceitemid', 'configitemid');
        foreach ($fieldnames as $fieldname) {
            $field = new xmldb_field($fieldname);
            if ($dbman->field_exists($table, $field)) {
                $dbman->drop_field($table, $field);
            }
        }
        upgrade_mod_savepoint(true, "{$newversion}", 'hotpot');
    }
    $newversion = 2010080330;
    if ($oldversion < $newversion) {
        require_once $CFG->dirroot . '/mod/hotpot/lib.php';
        hotpot_refresh_events();
    }
    $newversion = 2010080333;
    if ($oldversion < $newversion) {
        update_capabilities('mod/hotpot');
        upgrade_mod_savepoint(true, "{$newversion}", 'hotpot');
    }
    $newversion = 2010080339;
    if ($oldversion < $newversion) {
        $table = new xmldb_table('hotpot');
        $field = new xmldb_field('exitgrade', XMLDB_TYPE_INTEGER, '6', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0', 'exitcm');
        xmldb_hotpot_fix_previous_field($dbman, $table, $field);
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        upgrade_mod_savepoint(true, "{$newversion}", 'hotpot');
    }
    $newversion = 2010080340;
    if ($oldversion < $newversion) {
        // force all text fields to be long text, the default for Moodle 2.3 and later
        $tables = array('hotpot' => array(new xmldb_field('entrytext', XMLDB_TYPE_TEXT, 'long', null, XMLDB_NOTNULL), new xmldb_field('exittext', XMLDB_TYPE_TEXT, 'long', null, XMLDB_NOTNULL)), 'hotpot_cache' => array(new xmldb_field('content', XMLDB_TYPE_TEXT, 'long', null, XMLDB_NOTNULL)), 'hotpot_details' => array(new xmldb_field('details', XMLDB_TYPE_TEXT, 'long', null, XMLDB_NOTNULL)), 'hotpot_questions' => array(new xmldb_field('name', XMLDB_TYPE_TEXT, 'long', null, XMLDB_NOTNULL)), 'hotpot_strings' => array(new xmldb_field('string', XMLDB_TYPE_TEXT, 'long', null, XMLDB_NOTNULL)));
        foreach ($tables as $tablename => $fields) {
            $table = new xmldb_table($tablename);
            foreach ($fields as $field) {
                if ($dbman->field_exists($table, $field)) {
                    $fieldname = $field->getName();
                    $DB->set_field_select($tablename, $fieldname, '', "{$fieldname} IS NULL");
                    $dbman->change_field_type($table, $field);
                }
            }
        }
        upgrade_mod_savepoint(true, "{$newversion}", 'hotpot');
    }
    $newversion = 2010080342;
    if ($oldversion < $newversion) {
        // force all MySQL integer fields to be signed, the default for Moodle 2.3 and later
        if ($DB->get_dbfamily() == 'mysql') {
            $prefix = $DB->get_prefix();
            $tables = $DB->get_tables();
            foreach ($tables as $table) {
                if (substr($table, 0, 6) == 'hotpot') {
                    $rs = $DB->get_recordset_sql("SHOW COLUMNS FROM {$CFG->prefix}{$table} WHERE type LIKE '%unsigned%'");
                    foreach ($rs as $column) {
                        // copied from as "lib/db/upgradelib.php"
                        $type = preg_replace('/\\s*unsigned/i', 'signed', $column->type);
                        $notnull = $column->null === 'NO' ? 'NOT NULL' : 'NULL';
                        $default = is_null($column->default) || $column->default === '' ? '' : "DEFAULT '{$column->default}'";
                        $autoinc = stripos($column->extra, 'auto_increment') === false ? '' : 'AUTO_INCREMENT';
                        $sql = "ALTER TABLE `{$prefix}{$table}` MODIFY COLUMN `{$column->field}` {$type} {$notnull} {$default} {$autoinc}";
                        $DB->change_database_structure($sql);
                    }
                }
            }
        }
        upgrade_mod_savepoint(true, "{$newversion}", 'hotpot');
    }
    $newversion = 2010080353;
    if ($oldversion < $newversion) {
        // remove any unwanted "course_files" folders that may have been created
        // when restoring Moodle 1.9 HotPot activities to a Moodle 2.x site
        // select all HotPot activities which have a "course_files" folder
        // but whose "sourcefile" path does not require such a folder
        $select = 'f.*,' . 'h.id AS hotpotid,' . 'h.sourcefile AS sourcefile';
        $from = '{hotpot} h,' . '{course_modules} cm,' . '{context} c,' . '{files} f';
        $where = $DB->sql_like('h.sourcefile', '?', false, false, true) . ' AND h.id=cm.instance' . ' AND cm.id=c.instanceid' . ' AND c.id=f.contextid' . ' AND f.component=?' . ' AND f.filearea=?' . ' AND f.filepath=?' . ' AND f.filename=?';
        $params = array('/course_files/%', 'mod_hotpot', 'sourcefile', '/course_files/', '.');
        if ($filerecords = $DB->get_records_sql("SELECT {$select} FROM {$from} WHERE {$where}", $params)) {
            $fs = get_file_storage();
            foreach ($filerecords as $filerecord) {
                $file = $fs->get_file_instance($filerecord);
                xmldb_hotpot_move_file($file, '/');
            }
        }
        upgrade_mod_savepoint(true, "{$newversion}", 'hotpot');
    }
    $newversion = 2010080366;
    if ($oldversion < $newversion) {
        if ($hotpots = $DB->get_records_select('hotpot', $DB->sql_like('sourcefile', '?'), array('%http://localhost/19/99/%'))) {
            foreach ($hotpots as $hotpot) {
                $sourcefile = str_replace('http://localhost/19/99/', '', $hotpot->sourcefile);
                $DB->set_field('hotpot', 'sourcefile', $sourcefile, array('id' => $hotpot->id));
            }
        }
        upgrade_mod_savepoint(true, "{$newversion}", 'hotpot');
    }
    $newversion = 2010080370;
    if ($oldversion < $newversion) {
        require_once $CFG->dirroot . '/mod/hotpot/locallib.php';
        $reviewoptions = 0;
        list($times, $items) = hotpot::reviewoptions_times_items();
        foreach ($times as $timename => $timevalue) {
            foreach ($items as $itemname => $itemvalue) {
                $reviewoptions += $timevalue & $itemvalue;
            }
        }
        // $reviewoptions should now be set to 62415
        $DB->set_field('hotpot', 'reviewoptions', $reviewoptions);
        upgrade_mod_savepoint(true, "{$newversion}", 'hotpot');
    }
    $newversion = 2013111685;
    if ($oldversion < $newversion) {
        $tables = array('hotpot' => array(new xmldb_field('allowpaste', XMLDB_TYPE_INTEGER, '2', null, XMLDB_NOTNULL, null, '0', 'stoptext')), 'hotpot_cache' => array(new xmldb_field('hotpot_bodystyles', XMLDB_TYPE_CHAR, '8', null, XMLDB_NOTNULL, null, null, 'slasharguments'), new xmldb_field('sourcerepositoryid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0', 'sourcelocation'), new xmldb_field('configrepositoryid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0', 'configlocation'), new xmldb_field('allowpaste', XMLDB_TYPE_INTEGER, '2', null, XMLDB_NOTNULL, null, '0', 'stoptext')));
        foreach ($tables as $table => $fields) {
            $table = new xmldb_table($table);
            foreach ($fields as $field) {
                xmldb_hotpot_fix_previous_field($dbman, $table, $field);
                if ($dbman->field_exists($table, $field)) {
                    $dbman->change_field_type($table, $field);
                } else {
                    $dbman->add_field($table, $field);
                }
            }
        }
        upgrade_mod_savepoint(true, "{$newversion}", 'hotpot');
    }
    $newversion = 2014011694;
    if ($oldversion < $newversion) {
        require_once $CFG->dirroot . '/mod/hotpot/lib.php';
        hotpot_update_grades();
        upgrade_mod_savepoint(true, "{$newversion}", 'hotpot');
    }
    $newversion = 2014042111;
    if ($oldversion < $newversion) {
        $empty_cache = true;
        upgrade_mod_savepoint(true, "{$newversion}", 'hotpot');
    }
    if ($empty_cache) {
        $DB->delete_records('hotpot_cache');
    }
    return true;
}