Locale management was moved from the Session class to the Request class.

[pawaclawczyk]

• Locale management was moved from the Session class to the Request class.

  Configuring the default locale

  Before:

  framework:
    session:
        default_locale: fr

  After:

  framework:
    default_locale: fr

  Retrieving the locale from a Twig template

  Before: {{ app.request.session.locale }} or {{ app.session.locale }}

  After: {{ app.request.locale }}

  Retrieving the locale from a PHP template

  Before: $view['session']->getLocale()

  After: $view['request']->getLocale()

  Retrieving the locale from PHP code

  Before: $session->getLocale()

  After: $request->getLocale()

  Simulate old behavior

  You can simulate that the locale for the user is still stored in the session by registering a listener that looks like the following if the parameter which handles the locale value in the request is _locale:

  namespace XXX;
  
  use Symfony\Component\HttpKernel\Event\GetResponseEvent;
  use Symfony\Component\HttpKernel\KernelEvents;
  use Symfony\Component\EventDispatcher\EventSubscriberInterface;
  
  class LocaleListener implements EventSubscriberInterface
  {
   private $defaultLocale;
  
   public function __construct($defaultLocale = 'en')
   {
       $this->defaultLocale = $defaultLocale;
   }
  
   public function onKernelRequest(GetResponseEvent $event)
   {
       $request = $event->getRequest();
       if (!$request->hasPreviousSession()) {
           return;
       }
  
       if ($locale = $request->attributes->get('_locale')) {
           $request->getSession()->set('_locale', $locale);
       } else {
           $request->setLocale($request->getSession()->get('_locale', $this->defaultLocale));
       }
   }
  
   static public function getSubscribedEvents()
   {
       return array(
           // must be registered before the default Locale listener
           KernelEvents::REQUEST => array(array('onKernelRequest', 17)),
       );
   }
  }

[pawaclawczyk]

Yaml configuration - SessionConfigurationFixer detects occurance of default_locale: pl, probably it is fixable.

Twig templates - SessionLocaleTwigFixer replaces occurances of completa path, and add info about calls to locale method. So I think it's done.

PHP templates - Not implemented.

getLocale() method calls - SessionLocalePhpFixer adds info about existing calls like getLocale(). Needs more discussion.