| 1 |
efrain |
1 |
<?php
|
|
|
2 |
// This file is part of Moodle - http://moodle.org/
|
|
|
3 |
//
|
|
|
4 |
// Moodle is free software: you can redistribute it and/or modify
|
|
|
5 |
// it under the terms of the GNU General Public License as published by
|
|
|
6 |
// the Free Software Foundation, either version 3 of the License, or
|
|
|
7 |
// (at your option) any later version.
|
|
|
8 |
//
|
|
|
9 |
// Moodle is distributed in the hope that it will be useful,
|
|
|
10 |
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
11 |
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
|
12 |
// GNU General Public License for more details.
|
|
|
13 |
//
|
|
|
14 |
// You should have received a copy of the GNU General Public License
|
|
|
15 |
// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
|
|
|
16 |
|
|
|
17 |
namespace repository_filesystem\task;
|
|
|
18 |
defined('MOODLE_INTERNAL') || die();
|
|
|
19 |
|
|
|
20 |
/**
|
|
|
21 |
* A schedule task for file system repository cron.
|
|
|
22 |
*
|
|
|
23 |
* @package repository_filesystem
|
|
|
24 |
* @copyright 2019 Simey Lameze <simey@moodle.com>
|
|
|
25 |
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
|
|
|
26 |
*/
|
|
|
27 |
class cron_task extends \core\task\scheduled_task {
|
|
|
28 |
/**
|
|
|
29 |
* Get a descriptive name for this task (shown to admins).
|
|
|
30 |
*
|
|
|
31 |
* @return string
|
|
|
32 |
*/
|
|
|
33 |
public function get_name() {
|
|
|
34 |
return get_string('crontask', 'repository_filesystem');
|
|
|
35 |
}
|
|
|
36 |
|
|
|
37 |
/**
|
|
|
38 |
* Run file system repository cron.
|
|
|
39 |
*/
|
|
|
40 |
public function execute() {
|
|
|
41 |
global $CFG;
|
|
|
42 |
require_once($CFG->dirroot . '/repository/lib.php');
|
|
|
43 |
|
|
|
44 |
$fs = get_file_storage();
|
|
|
45 |
// Find all generated thumbnails and group them in array by itemid (itemid == repository instance id).
|
|
|
46 |
$allfiles = array_merge(
|
|
|
47 |
$fs->get_area_files(SYSCONTEXTID, 'repository_filesystem', 'thumb'),
|
|
|
48 |
$fs->get_area_files(SYSCONTEXTID, 'repository_filesystem', 'icon')
|
|
|
49 |
);
|
|
|
50 |
$filesbyitem = array();
|
|
|
51 |
foreach ($allfiles as $file) {
|
|
|
52 |
if (!isset($filesbyitem[$file->get_itemid()])) {
|
|
|
53 |
$filesbyitem[$file->get_itemid()] = array();
|
|
|
54 |
}
|
|
|
55 |
$filesbyitem[$file->get_itemid()][] = $file;
|
|
|
56 |
}
|
|
|
57 |
// Find all instances of repository_filesystem.
|
|
|
58 |
$instances = \repository::get_instances(array('type' => 'filesystem'));
|
|
|
59 |
// Loop through all itemids of generated thumbnails.
|
|
|
60 |
foreach ($filesbyitem as $itemid => $files) {
|
|
|
61 |
if (!isset($instances[$itemid]) || !($instances[$itemid] instanceof repository_filesystem)) {
|
|
|
62 |
// Instance was deleted.
|
|
|
63 |
$fs->delete_area_files(SYSCONTEXTID, 'repository_filesystem', 'thumb', $itemid);
|
|
|
64 |
$fs->delete_area_files(SYSCONTEXTID, 'repository_filesystem', 'icon', $itemid);
|
|
|
65 |
mtrace(" instance $itemid does not exist: deleted all thumbnails");
|
|
|
66 |
} else {
|
|
|
67 |
// Instance has some generated thumbnails, check that they are not outdated.
|
|
|
68 |
$instances[$itemid]->remove_obsolete_thumbnails($files);
|
|
|
69 |
}
|
|
|
70 |
}
|
|
|
71 |
}
|
|
|
72 |
}
|