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MDL-65050 core: add question_stats_cleanup_task scheduled task

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This commit also removes orphaned question/engine/statisticslib.php
This commit is contained in:
Simey Lameze 2019-03-28 16:32:21 +08:00
parent 10810f421b
commit 9c164d26fc
4 changed files with 75 additions and 51 deletions
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51
question/engine/statisticslib.php
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@ -1,51 +0,0 @@
<?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/>.
/**
* Functions common to the question usage statistics code.
*
* @package moodlecore
* @subpackage questionbank
* @copyright 2013 The Open University
* @author Jamie Pratt <me@jamiep.org>
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
defined('MOODLE_INTERNAL') || die();
/**
* Question statistics cron code. Deletes cached stats more than a certain age.
*/
function question_usage_statistics_cron() {
global $DB;
$expiretime = time() - 5 * HOURSECS;
mtrace("\n Cleaning up old question statistics cache records...", '');
$DB->delete_records_select('question_statistics', 'timemodified < ?', array($expiretime));
$responseanlysisids = $DB->get_records_select_menu('question_response_analysis',
'timemodified < ?',
array($expiretime),
'id',
'id, id AS id2');
$DB->delete_records_list('question_response_analysis', 'id', $responseanlysisids);
$DB->delete_records_list('question_response_count', 'analysisid', $responseanlysisids);
mtrace('done.');
return true;
}