[TASK] Move LanguageService to EXT:core
[Packages/TYPO3.CMS.git] / typo3 / sysext / backend / Classes / Form / FormDataProvider / TcaColumnsRemoveUnused.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
19 /**
20 * Remove fields from columns not in showitem or palette list or needed otherwise
21 * This is a relatively effective performance improvement preventing other
22 * providers from resolving stuff of fields that are not shown later.
23 * Especially effective for fal related tables.
24 */
25 class TcaColumnsRemoveUnused implements FormDataProviderInterface
26 {
27 /**
28 * Remove unused column fields to speed up further processing.
29 *
30 * @param array $result
31 * @return array
32 */
33 public function addData(array $result)
34 {
35 $columnsToRemove = array_diff(array_keys($result['processedTca']['columns']), $result['columnsToProcess']);
36 foreach ($columnsToRemove as $column) {
37 unset($result['processedTca']['columns'][$column]);
38 }
39
40 return $result;
41 }
42 }