Set Silex 2 application locale in a service controller from route - silex

Question

How can I get the locale from the route and use it in the service controller?
Here is my service controller:
$app['clients.controller'] = function() use ($app) {
$clientTranslator = new ClientTranslator;
$translations = $clientTranslator->getTranslations();
foreach ($translations as $domain => $data) {
foreach ($data as $locale => $messages) {
$app['translator']->addResource('array', $messages, $locale, $domain);
}
}
$app['translator']->setLocale($app['locale']);
return new ClientController($app, $app['clients.model'], $app['clients.validator']);
};
Notice that I am trying to set the translator locale from the app locale.
And here are the routes calling this service controller:
$app->mount ( '/en', function ($client) use ($app) {
$app ['locale'] = "en";
$client->match ( '/{id}/edit', 'clients.controller:editAction')
->assert ( 'id', '\d+' )
->method ( 'GET|POST' );
$client->match ( '/add', 'clients.controller:addAction')
->method ( 'GET|POST' );
$client->match ( '/{id}', 'clients.controller:deleteAction' )
->assert ( 'id', '\d+' )
->method ( 'DELETE' );
$client->get('/', "clients.controller:indexAction");
});
$app->mount('/fr', function ($client) use ($app) {
$app['locale'] = "fr";
$client->match ( '/{id}/edit', 'clients.controller:editAction')
->assert ( 'id', '\d+' )
->method ( 'GET|POST' );
$client->match ( '/add', 'clients.controller:addAction' )
->method ( 'GET|POST' );
$client->match ( '/{id}', 'clients.controller:deleteAction' )
->assert ( 'id', '\d+' )
->method ( 'DELETE' );
$client->get ( '/', "clients.controller:indexAction" );
} );
What is happening now is that the app locale is always French. I understand now that the statements in the mount section are executed even if that route is not called.
What would be the right way to achieve what I want?
Thanks

Answer 1

The right way for the routes in this case is as follows
$app->mount ( '{_locale}/', function ($client) use ($app) {
$client->match ( '/{id}/edit', 'clients.controller:editAction')
->assert ( 'id', '\d+' )
->method ( 'GET|POST' );
$client->match ( '/add', 'clients.controller:addAction')
->method ( 'GET|POST' );
$client->match ( '/{id}', 'clients.controller:deleteAction' )
->assert ( 'id', '\d+' )
->method ( 'DELETE' );
$client->get('/', "clients.controller:indexAction");
});
This way the locale is automatically set.