<?php
/*
* This file is part of the Silex framework.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Silex\EventListener;
use Silex\CallbackResolver;
use Symfony\Component\HttpKernel\KernelEvents;
use Symfony\Component\HttpKernel\Event\ControllerEvent;
use Symfony\Component\EventDispatcher\EventSubscriberInterface;
use Symfony\Component\Routing\RouteCollection;
/**
* Handles converters.
*
* @author Fabien Potencier <fabien@symfony.com>
*/
class ConverterListener implements EventSubscriberInterface
{
protected $routes;
protected $callbackResolver;
/**
* Constructor.
*
* @param RouteCollection $routes A RouteCollection instance
* @param CallbackResolver $callbackResolver A CallbackResolver instance
*/
public function __construct(RouteCollection $routes, CallbackResolver $callbackResolver)
{
$this->routes = $routes;
$this->callbackResolver = $callbackResolver;
}
/**
* Handles converters.
*
* @param ControllerEvent $event The event to handle
*/
public function onKernelController(ControllerEvent $event)
{
$request = $event->getRequest();
$route = $this->routes->get($request->attributes->get('_route'));
if ($route && $converters = $route->getOption('_converters')) {
foreach ($converters as $name => $callback) {
$callback = $this->callbackResolver->resolveCallback($callback);
$request->attributes->set($name, call_user_func($callback, $request->attributes->get($name), $request));
}
}
}
public static function getSubscribedEvents()
{
return [
KernelEvents::CONTROLLER => 'onKernelController',
];
}
}
