README.MD

Customization of allowed file extensions for individual DB fields

With the following code you are able to remove file extensions from the list of allowed file extensions in field tx_news_domain_model_news.fal_media. Just edit the array $removeFileExtensionsArray and copy the code into file: EXT:<your_sitepackage>/Configuration/TCA/Overrides/tx_news_domain_model_news.php of your sitepackage.

tx_news_domain_model_news.php

<?php

defined('TYPO3') or die('Access denied.');

/*
 * With the following code you are able to remove file extensions from the list
 * of allowed file extensions in `field tx_news_domain_model_news`.`fal_media`.
 * Just edit the array $removeFileExtensionsArray and copy the code into file:
 * EXT:<your_sitepackage>/Configuration/TCA/Overrides/tx_news_domain_model_news.php
 * of your sitepackage.
 */

call_user_func(static function () {
    /*
     * Array of file extensions that should be removed from the default file extensions list
     */
    $removeFileExtensionsArray = [
        'mp3',
        'wav',
        'mp4',
        'ogg',
        'flac',
        'opus',
        'webm',
        'youtube',
        'vimeo'
    ];

    /*
     * Convert list of default file extensions to array
     */
    $allowedFileExtensionsArray = explode(
        ',',
        $GLOBALS['TYPO3_CONF_VARS']['SYS']['mediafile_ext']
    );

    /*
     * Remove file extensions from default file extensions
     */
    $allowedFileExtensionsArray = array_diff(
        $allowedFileExtensionsArray,
        $removeFileExtensionsArray
    );

    /*
     * Convert array of allowed file extensions back to comma separated list
     */
    $allowedFileExtensions = implode(
        ',',
        $allowedFileExtensionsArray
    );

    /*
     * Apply new list of allowed file extensions to TCA
     */
    \TYPO3\CMS\Core\Utility\ArrayUtility::mergeRecursiveWithOverrule(
        $GLOBALS['TCA']['tx_news_domain_model_news']['columns']['fal_media']['config'],
        [
            'overrideChildTca' => [
                'columns' => [
                    'uid_local' => [
                        'config' => [
                            'appearance' => [
                                'elementBrowserAllowed' => $allowedFileExtensions
                            ]
                        ]
                    ]
                ]
            ],
            'filter' => [
                [
                    'parameters' => [
                        'allowedFileExtensions' => $allowedFileExtensions
                    ]
                ]
            ]
        ]
    );
});