added a way to register translations when the domain is not the default one (closes #185)

doc/providers/translation.rst

@@ -10,6 +10,8 @@ Parameters
 * **translator.messages**: A mapping of locales to message arrays. This
   parameter contains the translation data in all languages.
 
+* **translator.domains**: Same as above but stored by domains.
+
 * **locale** (optional): The locale for the translator. You will most likely
   want to set this based on some request parameter. Defaults to ``en``.
 
@@ -93,6 +95,33 @@ The above example will result in following routes:
 
 * ``/it/hello/igor`` will return ``Hello igor`` (because of the fallback).
 
+The messages defined with ``translator.messages`` are automatically stored in
+the default domain. When you need to explicitly set the translation domain
+(for the validation error messages for instance), use the
+``translator.domains`` parameter instead::
+
+    $app['translator.domains'] = array(
+        'messages' => array(
+            'en' => array(
+                'hello'     => 'Hello %name%',
+                'goodbye'   => 'Goodbye %name%',
+            ),
+            'de' => array(
+                'hello'     => 'Hallo %name%',
+                'goodbye'   => 'Tschüss %name%',
+            ),
+            'fr' => array(
+                'hello'     => 'Bonjour %name%',
+                'goodbye'   => 'Au revoir %name%',
+            ),
+        ),
+        'validators' => array(
+            'fr' => array(
+                'This value should be a valid number.' => 'Cette valeur doit être un nombre.',
+            ),
+        ),
+    );
+
 Recipes
 -------
 

doc/providers/validator.rst

@@ -102,5 +102,19 @@ getters::
 You will have to handle the display of these violations yourself. You can
 however use the *FormServiceProvider* which can make use of the *ValidatorServiceProvider*.
 
+Translation
+~~~~~~~~~~~
+
+To be able to translate the error messages, you can use the translator
+provider and register the messages under the ``validators`` domain::
+
+    $app['translator.domains'] = array(
+        'validators' => array(
+            'fr' => array(
+                'This value should be a valid number.' => 'Cette valeur doit être un nombre.',
+            ),
+        ),
+    );
+
 For more information, consult the `Symfony2 Validation documentation
 <http://symfony.com/doc/2.0/book/validation.html>`_.

src/Silex/Provider/TranslationServiceProvider.php

@@ -39,6 +39,12 @@ class TranslationServiceProvider implements ServiceProviderInterface
                 $translator->addResource('array', $messages, $locale);
             }
 
+            foreach ($app['translator.domains'] as $domain => $data) {
+                foreach ($data as $locale => $messages) {
+                    $translator->addResource('array', $messages, $locale, $domain);
+                }
+            }
+
             return $translator;
         });