9.5/_database_system_language_rows_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\Authentication\BackendUserAuthentication;

use ‪TYPO3\CMS\Core\Localization\LanguageService;

use ‪TYPO3\CMS\Core\Messaging\FlashMessage;

use ‪TYPO3\CMS\Core\Messaging\FlashMessageService;

use ‪TYPO3\CMS\Core\Site\Entity\SiteInterface;

use ‪TYPO3\CMS\Core\Utility\GeneralUtility;


class ‪DatabaseSystemLanguageRows implements ‪FormDataProviderInterface

{

    public function ‪addData(array $result)

    {

        $site = $result['site'] ?? null;

        if (!$site instanceof ‪SiteInterface) {

            throw new \LogicException(

                'No valid site object found in $result[\'site\']',

                1534952559

            );

        }

        $pageIdDefaultLanguage = $result['defaultLanguagePageRow']['uid'] ?? $result['effectivePid'];

        $languages = $site->getAvailableLanguages($this->‪getBackendUser(), true, $pageIdDefaultLanguage);


        $languageRows = [];

        foreach ($languages as $language) {

            $languageId = $language->getLanguageId();

            if ($languageId > 0) {

                $iso = $language->getTwoLetterIsoCode();

            } else {

                $iso = 'DEF';

            }

            $languageRows[$languageId] = [

                'uid' => $languageId,

                'title' => $language->getTitle(),

                'iso' => $iso,

                'flagIconIdentifier' => $language->getFlagIdentifier()

            ];


            if (empty($iso)) {

                // No iso code could be found. This is currently possible in the system but discouraged.

                // So, code within FormEngine has to be suited to work with an empty iso code. However,

                // it may impact certain multi language scenarios, so we add a flash message hinting for

                // incomplete configuration here.

                // It might be possible to convert this to a non-catchable exception later if

                // it iso code is enforced on a different layer of the system (tca required + migration wizard).

                // @todo: This could be relaxed again if flex form language handling is extracted,

                // @todo: since the rest of the FormEngine code does not rely on iso code?

                $message = sprintf(

                    $this->‪getLanguageService()->sL('LLL:EXT:core/Resources/Private/Language/locallang_core.xlf:error.missingLanguageIsocode'),

                    $language->getTwoLetterIsoCode(),

                    $languageId

                );

                $flashMessage = GeneralUtility::makeInstance(

                    FlashMessage::class,

                    $message,

                    '',

                    ‪FlashMessage::ERROR

                );

                $flashMessageService = GeneralUtility::makeInstance(FlashMessageService::class);

                $defaultFlashMessageQueue = $flashMessageService->getMessageQueueByIdentifier();

                $defaultFlashMessageQueue->enqueue($flashMessage);

            }

        }

        $result['systemLanguageRows'] = $languageRows;

        return $result;

    }


    protected function ‪getLanguageService(): ‪LanguageService

    {

        return ‪$GLOBALS['LANG'];

    }


    protected function ‪getBackendUser(): ‪BackendUserAuthentication

    {

        return ‪$GLOBALS['BE_USER'];

    }

}