Adding a new compiler pass to notify that the session is required

Author: weaverryan

DependencyInjection/Compiler/CheckForSessionPass.php

@@ -0,0 +1,40 @@
+<?php
+
+/*
+ * This file is part of the FOSUserBundle package.
+ *
+ * (c) FriendsOfSymfony <http://friendsofsymfony.github.com/>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace FOS\UserBundle\DependencyInjection\Compiler;
+
+use Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface;
+use Symfony\Component\DependencyInjection\ContainerBuilder;
+use Symfony\Flex\Recipe;
+
+/**
+ * Checks to see if the session service exists.
+ *
+ * @author Ryan Weaver <ryan@knpuniversity.com>
+ */
+class CheckForSessionPass implements CompilerPassInterface
+{
+    /**
+     * {@inheritdoc}
+     */
+    public function process(ContainerBuilder $container)
+    {
+        if (!$container->has('session')) {
+            $message = 'FOSUserBundle requires the "session" service to be available.';
+
+            if (class_exists(Recipe::class)) {
+                $message .= ' Uncomment the "session" section in "config/packages/framework.yaml" to activate it.';
+            }
+
+            throw new \LogicException($message);
+        }
+    }
+}

FOSUserBundle.php

@@ -14,6 +14,7 @@
 use Doctrine\Bundle\CouchDBBundle\DependencyInjection\Compiler\DoctrineCouchDBMappingsPass;
 use Doctrine\Bundle\DoctrineBundle\DependencyInjection\Compiler\DoctrineOrmMappingsPass;
 use Doctrine\Bundle\MongoDBBundle\DependencyInjection\Compiler\DoctrineMongoDBMappingsPass;
+use FOS\UserBundle\DependencyInjection\Compiler\CheckForSessionPass;
 use FOS\UserBundle\DependencyInjection\Compiler\InjectRememberMeServicesPass;
 use FOS\UserBundle\DependencyInjection\Compiler\InjectUserCheckerPass;
 use FOS\UserBundle\DependencyInjection\Compiler\ValidationPass;
@@ -35,6 +36,7 @@ public function build(ContainerBuilder $container)
         $container->addCompilerPass(new ValidationPass());
         $container->addCompilerPass(new InjectUserCheckerPass());
         $container->addCompilerPass(new InjectRememberMeServicesPass());
+        $container->addCompilerPass(new CheckForSessionPass());
 
         $this->addRegisterMappingsPass($container);
     }