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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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* A scheduled task.
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*
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* @package core
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* @copyright 2013 onwards Martin Dougiamas http://dougiamas.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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namespace core\task;
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defined('MOODLE_INTERNAL') || die();
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require_once($CFG->dirroot . '/backup/util/includes/backup_includes.php');
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/**
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* Simple task to delete old backup records.
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*/
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class backup_cleanup_task extends scheduled_task {
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/**
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* Get a descriptive name for this task (shown to admins).
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*
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* @return string
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*/
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public function get_name() {
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return get_string('taskbackupcleanup', 'admin');
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}
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/**
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* Do the job.
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* Throw exceptions on errors (the job will be retried).
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*/
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public function execute() {
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global $DB;
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$sql = 'SELECT * FROM {backup_controllers} WHERE purpose = ? AND status <> ?';
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$params = [\backup::MODE_COPY, \backup::STATUS_FINISHED_OK];
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$copyrecords = $DB->get_records_sql($sql, $params);
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\copy_helper::cleanup_orphaned_copy_controllers($copyrecords);
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$loglifetime = get_config('backup', 'loglifetime');
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if (empty($loglifetime)) {
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mtrace('The \'loglifetime\' config is not set. Can\'t proceed and delete old backup records.');
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return;
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}
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// First, get the list of all backupids older than loglifetime.
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$timecreated = time() - ($loglifetime * DAYSECS);
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$records = $DB->get_records_select('backup_controllers', 'timecreated < ?', array($timecreated), 'id', 'id, backupid');
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foreach ($records as $record) {
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// Check if there is no incomplete adhoc task relying on the given backupid.
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$params = array('%' . $record->backupid . '%');
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$select = $DB->sql_like('customdata', '?', false);
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$count = $DB->count_records_select('task_adhoc', $select, $params);
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if ($count === 0) {
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// Looks like there is no adhoc task, so we can delete logs and controllers for this backupid.
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$DB->delete_records('backup_logs', array('backupid' => $record->backupid));
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$DB->delete_records('backup_controllers', array('backupid' => $record->backupid));
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}
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}
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// Delete files and dirs older than 1 week.
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\backup_helper::delete_old_backup_dirs(strtotime('-1 week'));
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}
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}
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