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111951d861
The versioning changes will require some major changes in the backup and restore of question bank and its elements. This change introduces those changes to make it compatible with the new world of versioning in question bank. This commit also removes quiz_slots fields and quiz_slot_tags table. This commit will also introduce the versioning db structure and some major changes to the quiz and quiz attempts for the question, random question and the view. This commit implements the behat changes for versioning in core question and associated locations.
108 lines
5.0 KiB
PHP
108 lines
5.0 KiB
PHP
<?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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* @package moodlecore
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* @subpackage backup-dbops
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* @copyright 2010 onwards Eloy Lafuente (stronk7) {@link http://stronk7.com}
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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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/**
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* Non instantiable helper class providing DB support to the questions backup stuff
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*
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* This class contains various static methods available for all the DB operations
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* performed by questions stuff
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*
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* TODO: Finish phpdocs
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*/
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abstract class backup_question_dbops extends backup_dbops {
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/**
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* Calculates all the question_categories to be included
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* in backup, based in a given context (course/module) and
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* the already annotated questions present in backup_ids_temp
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*/
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public static function calculate_question_categories($backupid, $contextid) {
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global $DB;
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// First step, annotate all the categories for the given context (course/module)
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// i.e. the whole context questions bank
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$DB->execute("INSERT INTO {backup_ids_temp} (backupid, itemname, itemid)
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SELECT ?, 'question_category', id
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FROM {question_categories}
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WHERE contextid = ?", array($backupid, $contextid));
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// Now, based in the annotated questions, annotate all the categories they
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// belong to (whole context question banks too)
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// First, get all the contexts we are going to save their question bank (no matter
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// where they are in the contexts hierarchy, transversals... whatever)
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$contexts = $DB->get_fieldset_sql("SELECT DISTINCT qc2.contextid
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FROM {question_categories} qc2
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JOIN {question_bank_entries} qbe ON qbe.questioncategoryid = qc2.id
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JOIN {question_versions} qv ON qv.questionbankentryid = qbe.id
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JOIN {question} q ON q.id = qv.questionid
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JOIN {backup_ids_temp} bi ON bi.itemid = q.id
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WHERE bi.backupid = ?
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AND bi.itemname = 'question'
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AND qc2.contextid != ?", array($backupid, $contextid));
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// Calculate and get the set reference records.
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$setreferencecontexts = $DB->get_fieldset_sql("
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SELECT DISTINCT qc.contextid
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FROM {question_categories} qc
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JOIN {question_set_references} qsr ON qsr.questionscontextid = qc.contextid
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WHERE qsr.usingcontextid = ?", [$contextid]);
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foreach ($setreferencecontexts as $setreferencecontext) {
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if (!in_array($setreferencecontext, $contexts) && (int)$setreferencecontext !== $contextid) {
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$contexts [] = $setreferencecontext;
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}
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}
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// Calculate the get the reference records.
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$referencecontexts = $DB->get_fieldset_sql("
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SELECT DISTINCT qc.contextid
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FROM {question_categories} qc
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JOIN {question_bank_entries} qbe ON qbe.questioncategoryid = qc.id
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JOIN {question_references} qr ON qr.questionbankentryid = qbe.id
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WHERE qr.usingcontextid =?", [$contextid]);
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foreach ($referencecontexts as $referencecontext) {
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if (!in_array($referencecontext, $contexts) && (int)$referencecontext !== $contextid) {
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$contexts [] = $referencecontext;
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}
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}
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// And now, simply insert all the question categories (complete question bank)
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// for those contexts if we have found any
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if ($contexts) {
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list($contextssql, $contextparams) = $DB->get_in_or_equal($contexts);
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$params = array_merge(array($backupid), $contextparams);
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$DB->execute("INSERT INTO {backup_ids_temp} (backupid, itemname, itemid)
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SELECT ?, 'question_category', id
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FROM {question_categories}
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WHERE contextid $contextssql", $params);
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}
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}
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/**
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* Delete all the annotated questions present in backup_ids_temp
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*/
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public static function delete_temp_questions($backupid) {
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global $DB;
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$DB->delete_records('backup_ids_temp', array('backupid' => $backupid, 'itemname' => 'question'));
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}
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}
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