Poniendo el menu como servicio

src/SFM/WebsiteBundle/DependencyInjection/SFMWebsiteExtension.php

@@ -22,7 +22,7 @@ public function load(array $configs, ContainerBuilder $container)
         $configuration = new Configuration();
         $config = $this->processConfiguration($configuration, $configs);
 
-        $loader = new Loader\XmlFileLoader($container, new FileLocator(__DIR__.'/../Resources/config'));
-        $loader->load('services.xml');
+        $loader = new Loader\YamlFileLoader($container, new FileLocator(__DIR__.'/../Resources/config'));
+        $loader->load('services.yml');
     }
 }

src/SFM/WebsiteBundle/Menu/MenuBuilder.php

@@ -0,0 +1,33 @@
+<?php
+
+namespace SFM\WebsiteBundle\Menu;
+
+use Knp\Menu\FactoryInterface;
+use Symfony\Component\HttpFoundation\Request;
+
+class MenuBuilder
+{
+    private $factory;
+
+    /**
+     * @param FactoryInterface $factory
+     */
+    public function __construct(FactoryInterface $factory)
+    {
+        $this->factory = $factory;
+    }
+
+    public function createMenuPrincipal(Request $request)
+    {
+        $menu = $this->factory->createItem('root');
+        $menu->setCurrentUri($request->getRequestUri());
+
+		    $menu->addChild('Inicio', array('route' => 'inicio'));
+        $menu->addChild('Blog', array('route' => 'blog'));
+        $menu->addChild('Proyectos', array('route' => 'proyectos'));
+        $menu->addChild('Personas', array('route' => 'personas'));
+
+
+        return $menu;
+    }
+}

src/SFM/WebsiteBundle/Resources/config/services.yml

@@ -0,0 +1,13 @@
+services:
+    sfm_website.menu_builder:
+        class: SFM\WebsiteBundle\Menu\MenuBuilder
+        arguments: ["@knp_menu.factory"]
+
+    sfm_website.menu.principal:
+        class: Knp\Menu\MenuItem # the service definition requires setting the class
+        factory_service: sfm_website.menu_builder
+        factory_method: createMenuPrincipal
+        arguments: ["@request"]
+        scope: request # needed as we have the request as a dependency here
+        tags:
+            - { name: knp_menu.menu, alias: principal } # The alias is what is used to retrieve the menu

src/SFM/WebsiteBundle/Resources/views/layout.html.twig

@@ -33,7 +33,7 @@
 					</section>
 					<!--start menu-->
 					<nav>
-            {{ knp_menu_render('SFMWebsiteBundle:Builder:menuPrincipal') }}
+            {{ knp_menu_render('principal') }}
 					</nav>
 					<!--end menu-->
 				</header>