9.5/_database_row_default_values_8php_source.html

<?php

namespace ‪TYPO3\CMS\Backend\Form\FormDataProvider;


/*

 * This file is part of the TYPO3 CMS project.

 *

 * It is free software; you can redistribute it and/or modify it under

 * the terms of the GNU General Public License, either version 2

 * of the License, or any later version.

 *

 * For the full copyright and license information, please read the

 * LICENSE.txt file that was distributed with this source code.

 *

 * The TYPO3 project - inspiring people to share!

 */


use ‪TYPO3\CMS\Backend\Form\FormDataProviderInterface;

use ‪TYPO3\CMS\Core\Utility\GeneralUtility;


class ‪DatabaseRowDefaultValues implements ‪FormDataProviderInterface

{

    public function ‪addData(array $result)

    {

        $databaseRow = $result['databaseRow'];


        $newRow = $databaseRow;

        foreach ($result['processedTca']['columns'] as $fieldName => $fieldConfig) {

            // Keep current value if it can be resolved to "there is something" directly

            if (isset($databaseRow[$fieldName])) {

                $newRow[$fieldName] = $databaseRow[$fieldName];

                continue;

            }


            // Special handling for eval null

            if (!empty($fieldConfig['config']['eval']) && GeneralUtility::inList($fieldConfig['config']['eval'], 'null')) {

                if (// Field exists and is set to NULL

                    array_key_exists($fieldName, $databaseRow)

                    // Default NULL is set, and this is a new record!

                    || (array_key_exists('default', $fieldConfig['config']) && $fieldConfig['config']['default'] === null)

                ) {

                    $newRow[$fieldName] = null;

                } else {

                    $newRow[$fieldName] = (string)$fieldConfig['config']['default'];

                }

            } else {

                // Fun part: This forces empty string for any field even if no default is set. This is

                // a useful side effect in flex form section containers where a new field is added to an existing

                // value array because it was added to a data structure.

                $newRow[$fieldName] = (string)$fieldConfig['config']['default'];

            }

        }


        $result['databaseRow'] = $newRow;


        return $result;

    }

}