69 lines
2.5 KiB
PHP
69 lines
2.5 KiB
PHP
<?php
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/*
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* This file is part of the TYPO3 CMS project.
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*
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* It is free software; you can redistribute it and/or modify it under
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* the terms of the GNU General Public License, either version 2
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* of the License, or any later version.
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*
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* For the full copyright and license information, please read the
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* LICENSE.txt file that was distributed with this source code.
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*
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* The TYPO3 project - inspiring people to share!
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*/
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namespace TYPO3\CMS\Backend\Form\FormDataProvider;
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use TYPO3\CMS\Backend\Form\FormDataProviderInterface;
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/**
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* Handle TCA default values on row. This affects existing rows as well as new rows.
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*
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* Hint: Even after this class it is NOT safe no rely that *all* fields from
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* columns are set in databaseRow.
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*/
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class DatabaseRowDefaultValues implements FormDataProviderInterface
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{
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/**
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* Initialize new row with default values from various sources
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*
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* @return array
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*/
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public function addData(array $result)
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{
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$databaseRow = $result['databaseRow'];
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$newRow = $databaseRow;
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foreach ($result['processedTca']['columns'] as $fieldName => $fieldConfig) {
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// Keep current value if it can be resolved to "there is something" directly
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if (isset($databaseRow[$fieldName])) {
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$newRow[$fieldName] = $databaseRow[$fieldName];
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continue;
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}
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// Special handling for nullable fields
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if ($fieldConfig['config']['nullable'] ?? false) {
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if (// Field exists and is set to NULL
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array_key_exists($fieldName, $databaseRow)
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// Default NULL is set, and this is a new record!
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|| (array_key_exists('default', $fieldConfig['config']) && $fieldConfig['config']['default'] === null)
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) {
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$newRow[$fieldName] = null;
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} else {
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$newRow[$fieldName] = (string)($fieldConfig['config']['default'] ?? '');
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}
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} else {
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// Fun part: This forces empty string for any field even if no default is set. This is
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// a useful side effect in flex form section containers where a new field is added to an existing
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// value array because it was added to a data structure.
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$newRow[$fieldName] = (string)($fieldConfig['config']['default'] ?? '');
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}
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}
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$result['databaseRow'] = $newRow;
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return $result;
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}
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}
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