Manage locale in URL

composer.json

@@ -47,6 +47,7 @@
         "symfonycasts/verify-email-bundle": "^1.17",
         "twbs/bootstrap":           "^5.3",
         "twig/extra-bundle":        "^3.0",
+        "twig/string-extra":        "^3.10",
         "twig/twig":                "^3.0"
     },
     "config":        {

config/packages/translation.yaml

@@ -1,5 +1,5 @@
 framework:
-    default_locale: en
+    default_locale: '%locale.default%'
     translator:
         default_path: '%kernel.project_dir%/translations'
         fallbacks:

config/routes.yaml

@@ -1,5 +1,10 @@
+core_root_redirect:
+    path: /
+    controller: App\Controller\CoreController::root_redirect
+
 controllers:
     resource:
         path: ../src/Controller/
         namespace: App\Controller
     type: attribute
+    prefix: /{_locale<%locale.all%>}

config/services.yaml

@@ -7,6 +7,9 @@ parameters:
     mailer.email: '%env(MAILER_EMAIL)%'
     mailer.name: '%env(MAILER_NAME)%'
 
+    locale.all: 'en|fr'
+    locale.default: 'en'
+
 services:
     # default configuration for services in *this* file
     _defaults:

src/Controller/CoreController.php

@@ -3,6 +3,7 @@
 namespace App\Controller;
 
 use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
+use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\Response;
 use Symfony\Component\Routing\Attribute\Route;
 
@@ -10,6 +11,19 @@ use Symfony\Component\Routing\Attribute\Route;
  * Controller for core page : home, etc.
  */
 class CoreController extends AbstractController {
+    /**
+     * Redirection for root URL (without locale)
+     *
+     * @param Request $request The request
+     *
+     * @return Response The response
+     */
+    public function root_redirect (Request $request): Response {
+        return $this->redirectToRoute('core_main', [
+            '_locale' => $request->getPreferredLanguage(explode('|', $this->getParameter('locale.all'))),
+        ]);
+    }
+
     /**
      * Home page
      *