Symfony2: Change rendered view with a listener

Question

I would like to render different views in different context in my Symfony2 project. I'm using multiple routes for the same actions and I would like to render a different page (view) but with the same controller. For example I have: ``` @Route("/articles/show", name="articles_show") @Route("/mobile/articles/show", name="mobile_articles_show") ``` Both routes are using the same action : ArticlesController:showAction(), but should render 2 differents templates (for mobile users and regulars ones). ``` show.html.twig mobile.show.html.twig ``` I do not want to use a if statement or whatever in my controller, so I created a listener (similar to a preExecute function) Here is a part or my config.yml that defines my listener ``` services: controller.pre_execute_listener: class: MyProject\MyBundle\Listener\ControllerListener arguments: ["@security.context", "@doctrine", "@router", "@session"] tags:- { name: kernel.event_listener, event: kernel.controller, method: preExecute } ``` I was thinkin…

Accepted Answer

Here is the solution:

First I have to listen to kernel.view, not kernel.controller.

Then I use the "@templating" service (Thanks Marko Jovanovic for the hint)

So here is my new config.yml:

```
services:
    controller.pre_execute_listener:
        class: MyProject\MyBundle\Listener\ControllerListener
        arguments: ["@templating"]
        tags:
                - { name: kernel.event_listener, event: kernel.view, method: preExecute }
```

Finally here is my listener preExecute function

```
public function preExecute(\Symfony\Component\HttpKernel\Event\GetResponseForControllerResultEvent $event){
    //result returned by the controller
    $data = $event->getControllerResult();

/* @var $request  \Symfony\Component\HttpFoundation\Request */
    $request =  $event->getRequest();       
    $template = $request->get('_template');
    $route = $request->get('_route');

if(substr($route,0,7) == 'mobile_'){
        $newTemplate = str_replace('html.twig','mobile.html.twig',$template);

//Overwrite original template with the mobile one
        $response = $this->templating->renderResponse($newTemplate, $data);
        $event->setResponse($response);
    }
}
```

Hope this helps!

J.

Symfony2: Change rendered view with a listener

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