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cookbook/using-a-custom-route-repository.rst

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+Using a custom route repository with Dynmaic Router
+===================================================
+
+The Dynamic Router allows you to customize the route Repository (i.e. the class responsible for retrieving routes from the database), and by extension, the Route objects.
+
+Creating the route repository
+-----------------------------
+
+The route repository must implement the `RouteRepositoryInterface` and in addition should return objects which extend the Symfony Route class. The following class provides a simple solution which uses an ODM Repository, but you can equally imagine an ORM repository or indeed anything you like, as long as it implements the interface.
+
+.. code-block:: php
+
+    <?php
+
+    namespace MyVendor\Bundle\MyBundle\Repository;
+    use Doctrine\ODM\PHPCR\DocumentRepository;
+    use Symfony\Cmf\Component\Routing\RouteRepositoryInterface;
+    use Symfony\Component\Routing\RouteCollection;
+
+    class RouteRepository extends DocumentRepository implements RouteRepositoryInterface
+
+    {
+        public function findManyByUrl($url)
+        {
+            $route = $this->findOneBy(array(
+                'path' => $url,
+            ));
+            $collection = new RouteCollection(array($route));
+
+            return $collection;
+        }
+
+        public function getRouteByName($name, $params = array())
+        {
+            $route = $this->findOneBy(array(
+                'name' => $name,
+            ));
+
+            return $route;
+        }
+    }
+
+The route class
+---------------
+
+As noted above, the route classes provided by the route repository must  *extend* `Symfony\Component\Routing\Route` and provide whatever other parameters required by the storage engine, the following is an example ODM object:
+
+
+.. code-block:: php
+
+    <?php
+
+    namespace MyVendor\Bundle\MyBundle\Document;
+    use Doctrine\ODM\PHPCR\Mapping\Annotations as PHPCR;
+    use DCMS\Bundle\CoreBundle\Validation\Constraints as RoutingValidation;
+    use Symfony\Component\Routing\Route as BaseRoute;
+
+    /**
+     * @PHPCR\Document(repositoryClass="MyVendor\Bundle\MyBundle\Repository\RouteRepository")
+     */
+    class Route extends BaseRoute
+    {
+        // @todo: Fill this out
+    }
+
+Replacing the default CMF repository
+------------------------------------
+
+The final step is to replace the default CMF routing repository service with your own. This is easily accomplished using the application configuration:
+
+.. code-block:: yaml
+
+    # app/config/config.yml
+    symfony_cmf_routing_extra:
+        dynamic:
+            enabled: true
+            route_repository_service_id: my_bundle.repository.endpoint
+
+Where `my_bundle.repository.endpoint` is the service ID of your repository. See `Creating and configuring services in the container <http://symfony.com/doc/current/book/service_container.html#creating-configuring-services-in-the-container/>`_ for information on creating custom services.