Symfony2 Custom Error Exception Listener - Rendering templates or passing to a controller

Question

I\'m trying to work out the best way of handling custom error pages within Symfony2.This includes 500 and 404\'s etc.

I can create my own custom templates (error404

Answer 1

The way I did to solve similar issue is: I dont know if it can help you out.

const GENERIC_CODE = 550;
public function onKernelException(GetResponseForExceptionEvent $event)
{
    $exception = $event->getException();
    if ($exception instanceof RedirectableException) {
        $request = $event->getRequest();
        $url = $exception->getUrl($this->_authentication['base']['url']);
        $response = new Response();
        $response->setStatusCode(self::GENERIC_CODE, AuthenticationException::GENERIC_MESSAGE);
        $response->setContent($url);
        $event->setResponse($response);
   }
}

Answer 2

You should add into yours Listener

/**
 *
 * @var ContainerInterface
 */
private $container;

function __construct($container) {
    $this->container = $container;
}

How do you register your Listener? You should register Listener like Service

Like that

core.exceptlistener:
  class: %core.exceptlistener.class%
  arguments: [@service_container]
  tags:
        - { name: kernel.event_listener, event: kernel.exception, method: onKernelException, priority: 200 }

The best way is don't use service_container. The best way is register only necessary services.

Like that

/**
 *
 * @var Twig_Environment
 */
private $twig;

function __construct($twig) {
    $this->twig = $twig;
}