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See Release Notes
Long Term Support Release

  • Bug fixes for general core bugs in 3.9.x will end* 10 May 2021 (12 months).
  • Bug fixes for security issues in 3.9.x will end* 8 May 2023 (36 months).
  • PHP version: minimum PHP 7.2.0 Note: minimum PHP version has increased since Moodle 3.8. PHP 7.3.x and 7.4.x are supported too.
<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.

/**
 * Quiz overview report upgrade script.
 *
 * @package   quiz_overview
 * @copyright 2008 Jamie Pratt
 * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */

defined('MOODLE_INTERNAL') || die();

/**
 * Quiz overview report upgrade function.
 * @param number $oldversion
 */
function xmldb_quiz_overview_upgrade($oldversion) {
    global $DB;

< $dbman = $DB->get_manager(); < < // Automatically generated Moodle v3.5.0 release upgrade line.
> // Automatically generated Moodle v3.9.0 release upgrade line.
// Put any upgrade step following this.
< // Upgrade 2018021800 (now removed) incorrectly added this key < // with a unique constraint, which breaks things because those < // columns are not, in fact, unique. So drop (if it exists) then recreate. < if ($oldversion < 2018061800) { < < // Define key questionusageid-slot (foreign) to be dropped form quiz_overview_regrades. < $table = new xmldb_table('quiz_overview_regrades'); < < // There is no key_exists, so test the equivalent index. < $oldindex = new xmldb_index('questionusageid-slot', XMLDB_KEY_UNIQUE, array('questionusageid', 'slot')); < < // Launch drop key questionusageid-slot. < if ($dbman->index_exists($table, $oldindex)) { < $key = new xmldb_key('questionusageid-slot', XMLDB_KEY_FOREIGN, array('questionusageid', 'slot'), 'question_attempts', array('questionusageid', 'slot')); < $dbman->drop_key($table, $key); < } < < // Overview savepoint reached. < upgrade_plugin_savepoint(true, 2018061800, 'quiz', 'overview'); < } < < if ($oldversion < 2018061801) { < < // Define key questionusageid-slot (foreign) to be added to quiz_overview_regrades. < $table = new xmldb_table('quiz_overview_regrades'); < $key = new xmldb_key('questionusageid-slot', XMLDB_KEY_FOREIGN, array('questionusageid', 'slot'), 'question_attempts', array('questionusageid', 'slot')); < < // Launch add key questionusageid-slot. < $dbman->add_key($table, $key); < < // Overview savepoint reached. < upgrade_plugin_savepoint(true, 2018061801, 'quiz', 'overview'); < } < < // Automatically generated Moodle v3.6.0 release upgrade line.
> // Automatically generated Moodle v4.0.0 release upgrade line.
// Put any upgrade step following this.
< // Automatically generated Moodle v3.7.0 release upgrade line.
> // Automatically generated Moodle v4.1.0 release upgrade line.
// Put any upgrade step following this.
< // Automatically generated Moodle v3.8.0 release upgrade line.
> // Automatically generated Moodle v4.2.0 release upgrade line.
// Put any upgrade step following this.
< // Automatically generated Moodle v3.9.0 release upgrade line.
> // Automatically generated Moodle v4.3.0 release upgrade line.
// Put any upgrade step following this. return true; }