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46 lines
1.8 KiB
46 lines
1.8 KiB
2 years ago
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<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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/**
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* This file contains datbase upgrade code that is called from lib/db/upgrade.php,
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* and also check methods that can be used for pre-install checks via
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* admin/environment.php and lib/environmentlib.php.
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*
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* @package moodlecore
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* @subpackage questionbank
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* @copyright 2007 The Open University
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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defined('MOODLE_INTERNAL') || die();
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/**
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* In Moodle, all random questions should have question.parent set to be the same
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* as question.id. One effect of MDL-5482 is that this will not be true for questions that
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* were backed up then restored. The probably does not cause many problems, except occasionally,
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* if the bogus question.parent happens to point to a multianswer question type, or when you
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* try to do a subsequent backup. Anyway, these question.parent values should be fixed, and
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* that is what this update does.
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*/
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function question_fix_random_question_parents() {
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global $CFG, $DB;
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$DB->execute("UPDATE {question} SET parent = id WHERE qtype = 'random' AND parent <> id");
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return true;
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}
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