diff --git a/cookbook/session/locale_sticky_session.rst b/cookbook/session/locale_sticky_session.rst
index 2aa61eed497..44a323d6b80 100644
--- a/cookbook/session/locale_sticky_session.rst
+++ b/cookbook/session/locale_sticky_session.rst
@@ -106,3 +106,112 @@ method::
{
$locale = $request->getLocale();
}
+
+Setting the Locale Based on the User's Preferences
+--------------------------------------------------
+
+You might want to improve this technique even further and define the locale based on
+the user entity of the logged in user. However, since the ``LocaleListener`` is called
+before the ``FirewallListener``, which is responsible for handling authentication and
+is setting the user token into the ``TokenStorage``, you have no access to the user
+which is logged in.
+
+Let's pretend you have defined a property "locale" in your user entity which you
+want to be used as the locale for the given user. In order to achieve the wanted locale
+configuration, you can set the locale which is defined for the user to the session right
+after the login. Fortunately, you can hook into the login process and update the user's
+session before the redirect to the first page. For this you need an event listener for the
+``security.interactive_login`` event:
+
+.. code-block:: php
+
+ // src/AppBundle/EventListener/UserLocaleListener.php
+ namespace AppBundle\EventListener;
+
+ use Symfony\Component\HttpFoundation\Session\Session;
+ use Symfony\Component\Security\Http\Event\InteractiveLoginEvent;
+
+ /**
+ * Stores the locale of the user in the session after the
+ * login. This can be used by the LocaleListener afterwards.
+ */
+ class UserLocaleListener
+ {
+ /**
+ * @var Session
+ */
+ private $session;
+
+ public function __construct(Session $session)
+ {
+ $this->session = $session;
+ }
+
+ /**
+ * @param InteractiveLoginEvent $event
+ */
+ public function onInteractiveLogin(InteractiveLoginEvent $event)
+ {
+ $user = $event->getAuthenticationToken()->getUser();
+
+ if (null !== $user->getLocale()) {
+ $this->session->set('_locale', $user->getLocale());
+ }
+ }
+ }
+
+Then register the listener:
+
+.. configuration-block::
+
+ .. code-block:: yaml
+
+ # app/config/services.yml
+ services:
+ app.user_locale_listener:
+ class: AppBundle\EventListener\UserLocaleListener
+ arguments: [@session]
+ tags:
+ - { name: kernel.event_listener, event: security.interactive_login, method: onInteractiveLogin }
+
+ .. code-block:: xml
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ .. code-block:: php
+
+ // app/config/services.php
+ $container
+ ->register('app.user_locale_listener', 'AppBundle\EventListener\UserLocaleListener')
+ ->addArgument('session')
+ ->addTag(
+ 'kernel.event_listener',
+ array('event' => 'security.interactive_login', 'method' => 'onInteractiveLogin'
+ );
+
+.. caution::
+
+ With this configuration you are all set for having the locale based on the user's
+ locale. If however the locale changes during the session, it would not be updated
+ since with the current implementation the user locale will only be stored to the
+ session on login. In order to update the language immediately after a user has
+ changed their language, you need to update the session after an update to
+ the user entity.
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