Current File : /home/vacivi36/ava/repository/filesystem/classes/task/cron_task.php
<?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/>.
namespace repository_filesystem\task;
defined('MOODLE_INTERNAL') || die();
/**
* A schedule task for file system repository cron.
*
* @package repository_filesystem
* @copyright 2019 Simey Lameze <simey@moodle.com>
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class cron_task extends \core\task\scheduled_task {
/**
* Get a descriptive name for this task (shown to admins).
*
* @return string
*/
public function get_name() {
return get_string('crontask', 'repository_filesystem');
}
/**
* Run file system repository cron.
*/
public function execute() {
global $CFG;
require_once($CFG->dirroot . '/repository/lib.php');
$fs = get_file_storage();
// Find all generated thumbnails and group them in array by itemid (itemid == repository instance id).
$allfiles = array_merge(
$fs->get_area_files(SYSCONTEXTID, 'repository_filesystem', 'thumb'),
$fs->get_area_files(SYSCONTEXTID, 'repository_filesystem', 'icon')
);
$filesbyitem = array();
foreach ($allfiles as $file) {
if (!isset($filesbyitem[$file->get_itemid()])) {
$filesbyitem[$file->get_itemid()] = array();
}
$filesbyitem[$file->get_itemid()][] = $file;
}
// Find all instances of repository_filesystem.
$instances = \repository::get_instances(array('type' => 'filesystem'));
// Loop through all itemids of generated thumbnails.
foreach ($filesbyitem as $itemid => $files) {
if (!isset($instances[$itemid]) || !($instances[$itemid] instanceof repository_filesystem)) {
// Instance was deleted.
$fs->delete_area_files(SYSCONTEXTID, 'repository_filesystem', 'thumb', $itemid);
$fs->delete_area_files(SYSCONTEXTID, 'repository_filesystem', 'icon', $itemid);
mtrace(" instance $itemid does not exist: deleted all thumbnails");
} else {
// Instance has some generated thumbnails, check that they are not outdated.
$instances[$itemid]->remove_obsolete_thumbnails($files);
}
}
}
}
Mini Shell