what I am trying to do is to have custom error page, not only will they be extending the base layout but also I want extra up selling content in those pages too so changing templates only is not an option
regardless of the reason (404 Not Found or just missing variable) I would like to show my template and my content instead
I have spent hours trying to get this going with no luck
app/console --version
Symfony version 2.5.6 - app/dev/debug
I tried some resources, but couldn't get it working. The name a few:
http://symfony.com/doc/current/reference/configuration/twig.html http://symfony.com/doc/current/cookbook/controller/error_pages.html
I'm running in dev with no debug, see app_dev.php
below:
$kernel = new AppKernel('dev', false);
following the tutorials i got these extra bits
app/config/config.yml
twig:
exception_controller: SomethingAppBundle:Exception:show
in my bundle
<?php
namespace Something\AppBundle\Controller;
use Symfony\Component\HttpKernel\Log\DebugLoggerInterface;
use Symfony\Component\HttpKernel\Exception\FlattenException;
use Symfony\Bundle\FrameworkBundle\Controller\Controller;
class ExceptionController extends Controller
{
public function showAction( FlattenException $error, DebugLoggerInterface $debug)
{
print_r($error);
}
}
but my error controller does not get executed,
I am on purpose causing error by trying to echo undefined variable in different controller, since it should handle error from entire application
At the beginning you need to create action in the controller:
<?php
namespace AppBundle\Controller;
use Symfony\Bundle\FrameworkBundle\Controller\Controller;
class ErrorController extends Controller
{
public function notFoundAction()
{
return $this->render('error/404.html.twig');
}
}
Then you need to create a Listener:
<?php
namespace AppBundle\EventListener;
use Symfony\Component\HttpKernel\Event\GetResponseForExceptionEvent;
use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
use Symfony\Component\HttpKernel\HttpKernelInterface;
class NotFoundHttpExceptionListener
{
private $controller_resolver;
private $request_stack;
private $http_kernel;
public function __construct($controller_resolver, $request_stack, $http_kernel)
{
$this->controller_resolver = $controller_resolver;
$this->request_stack = $request_stack;
$this->http_kernel = $http_kernel;
}
public function onKernelException(GetResponseForExceptionEvent $event)
{
if ($event->getException() instanceof NotFoundHttpException) {
$request = new \Symfony\Component\HttpFoundation\Request();
$request->attributes->set('_controller', 'AppBundle:Error:notFound');
$controller = $this->controller_resolver->getController($request);
$path['_controller'] = $controller;
$subRequest = $this->request_stack->getCurrentRequest()->duplicate(array(), null, $path);
$event->setResponse($this->http_kernel->handle($subRequest, HttpKernelInterface::MASTER_REQUEST)); // Simulating "forward" in order to preserve the "Not Found URL"
}
}
}
Now register the service:
#AppBundle/Resources/config/services.yml
services:
kernel.listener.notFoundHttpException:
class: AppBundle\EventListener\NotFoundHttpExceptionListener
tags:
- { name: kernel.event_listener, event: kernel.exception, method: onKernelException, priority: -10 }
arguments: [ @controller_resolver, @request_stack, @http_kernel ]
Not tested this, but rather it should work;)
Tested, it works. On the rendered page, you have a session, so you have access to app.user, his cart, and other matters related to the session.
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