Translations

When configuring a feed for different languages, it may be convenient to use translations from locallang.xlf files. One possible implementation could be:

EXT:your_extension/Classes/Feed/YourFeed.php 
// use TYPO3\CMS\Core\Localization\LanguageService;
// use TYPO3\CMS\Core\Localization\LanguageServiceFactory;

#[Feed('/en/your-feed.atom', FeedFormat::ATOM)]
#[Feed('/de/dein-feed.atom', FeedFormat::ATOM)]
#[Feed('/nl/je-feed.atom', FeedFormat::ATOM)]
final class YourFeed implements FeedInterface, RequestAwareInterface
{
   private ?LanguageService $languageService = null;

   public function __construct(
      private readonly LanguageServiceFactory $languageServiceFactory,
   ) {
   }

   public function getDescription(): string
   {
      // feed.description is defined in your extension's locallang.xlf
      return $this->translate('feed.description');
   }

   public function getTitle(): string
   {
      // feed.title is defined in your extension's locallang.xlf
      return $this->translate('feed.title');
   }

   private function translate(string $key): string
   {
      if ($this->languageService === null) {
         $this->languageService = $this->languageServiceFactory->createFromSiteLanguage(
            $this->request->getAttribute('language')
               ?? $this->request->getAttribute('site')->getDefaultLanguage();
         );
      }

      return $this->languageService->sL(
         'LLL:EXT:your_extension/Resources/Private/Language/locallang.xlf:' . $key
      );
   }

   // ... the other methods from the introduction example are untouched
}
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