TYPO3 v15 dev-main snapshot ()

2026-08-10 22:31:00 +02:00
commit f9941541b7
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+<?php
+
+/*
+ * 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!
+ */
+
+namespace TYPO3\CMS\Backend\Form\FormDataProvider;
+
+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\Type\ContextualFeedbackSeverity;
+
+/**
+ * Fill the "systemLanguageRows" part of the result array
+ */
+readonly class DatabaseSystemLanguageRows implements FormDataProviderInterface
+{
+    public function __construct(
+        private FlashMessageService $flashMessageService
+    ) {}
+
+    /**
+     * Fetch available system languages and resolve iso code if necessary.
+     *
+     * @return array
+     * @throws \LogicException
+     */
+    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->getLocale()->getLanguageCode();
+            } 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->getLocale()->getLanguageCode(),
+                    $languageId
+                );
+                $flashMessage = new FlashMessage(
+                    $message,
+                    '',
+                    ContextualFeedbackSeverity::ERROR
+                );
+                $defaultFlashMessageQueue = $this->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'];
+    }
+}