1<?php
2
3/**
4 * Kolab storage cache class for file objects
5 *
6 * @author Thomas Bruederli <bruederli@kolabsys.com>
7 *
8 * Copyright (C) 2013, Kolab Systems AG <contact@kolabsys.com>
9 *
10 * This program is free software: you can redistribute it and/or modify
11 * it under the terms of the GNU Affero General Public License as
12 * published by the Free Software Foundation, either version 3 of the
13 * License, or (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU Affero General Public License for more details.
19 *
20 * You should have received a copy of the GNU Affero General Public License
21 * along with this program. If not, see <http://www.gnu.org/licenses/>.
22 */
23
24class kolab_storage_cache_file extends kolab_storage_cache
25{
26    protected $extra_cols = array('filename');
27    protected $data_props = array('type', 'size', 'filename', 'fileid');
28
29    /**
30     * Helper method to convert the given Kolab object into a dataset to be written to cache
31     *
32     * @override
33     */
34    protected function _serialize($object)
35    {
36        if (!empty($object['_attachments'])) {
37            reset($object['_attachments']);
38
39            $file = $object['_attachments'][key($object['_attachments'])];
40
41            $object['type']   = $file['mimetype'];
42            $object['size']   = $file['size'];
43            $object['fileid'] = $file['id'];
44        }
45
46        $sql_data = parent::_serialize($object);
47
48        if (!empty($file)) {
49            $sql_data['filename'] = $file['name'];
50        }
51
52        return $sql_data;
53    }
54
55    /**
56     * Helper method to turn stored cache data into a valid storage object
57     *
58     * @override
59     */
60    protected function _unserialize($sql_arr)
61    {
62        $object = parent::_unserialize($sql_arr);
63
64        if ($object && !empty($object['_attachments'])) {
65            $file = $object['_attachments'][key($object['_attachments'])];
66
67            $object['type']   = $file['mimetype'];
68            $object['size']   = $file['size'];
69            $object['fileid'] = $file['id'];
70        }
71
72        return $object;
73    }
74}
75