Translating Validation Messages

When working with Symfony2 validator, a common task would be to show localized validation messages.

In order to do that, you will need to register translator and point to translated resources:

$app->register(new Silex\Provider\TranslationServiceProvider(), array(
    'locale' => 'sr_Latn',
    'translator.domains' => array(),
));

$app->before(function () use ($app) {
    $app['translator']->addLoader('xlf', new Symfony\Component\Translation\Loader\XliffFileLoader());
    $app['translator']->addResource('xlf', __DIR__.'/vendor/symfony/src/Symfony/Bundle/FrameworkBundle/Resources/translations/validators.sr_Latn.xlf', 'sr_Latn', 'validators');
});

And that’s all you need to load translations from Symfony2 xlf files.