[!!!][TASK] Improve flex and TCA handling in FormEngine
[Packages/TYPO3.CMS.git] / typo3 / sysext / backend / Classes / Form / FormDataProvider / DatabaseUniqueUidNewRow.php
1 <?php
2 namespace TYPO3\CMS\Backend\Form\FormDataProvider;
3
4 /*
5 * This file is part of the TYPO3 CMS project.
6 *
7 * It is free software; you can redistribute it and/or modify it under
8 * the terms of the GNU General Public License, either version 2
9 * of the License, or any later version.
10 *
11 * For the full copyright and license information, please read the
12 * LICENSE.txt file that was distributed with this source code.
13 *
14 * The TYPO3 project - inspiring people to share!
15 */
16
17 use TYPO3\CMS\Backend\Form\FormDataProviderInterface;
18 use TYPO3\CMS\Core\Utility\StringUtility;
19
20 /**
21 * On "new" command, initialize uid with an unqique uid
22 */
23 class DatabaseUniqueUidNewRow implements FormDataProviderInterface
24 {
25 /**
26 * Initialize new row with unique uid
27 *
28 * @param array $result
29 * @return array
30 * @throws \InvalidArgumentException
31 */
32 public function addData(array $result)
33 {
34 if ($result['command'] !== 'new') {
35 return $result;
36 }
37 // Throw exception if uid is already set and does not start with NEW.
38 // In some situations a new record needs to be created again so the initialization of default
39 // values is triggered, but the "ID" of the new record is already known: This is the case if a
40 // new section container element is added by FormFlexAjaxController to a not yet persisted record.
41 // In this case, command "new" is given to the data compiler, but the "NEW1234" id has been calculated
42 // by the former compiler when opening the record already. The ajax controller then hands in the
43 // "new" command together with the id calculated by the first call.
44 if (isset($result['databaseRow']['uid']) && strpos($result['databaseRow']['uid'], 'NEW') !== 0) {
45 throw new \InvalidArgumentException(
46 'uid is already set to ' . $result['databaseRow']['uid'] . ' and does not start with NEW for a "new" command',
47 1437991120
48 );
49 }
50 if (!isset($result['databaseRow']['uid'])) {
51 $result['databaseRow']['uid'] = StringUtility::getUniqueId('NEW');
52 }
53
54 return $result;
55 }
56 }