/
ParamConverterListener.php
76 lines (66 loc) · 2.19 KB
/
ParamConverterListener.php
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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien.potencier@symfony-project.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Bundle\FrameworkBundle\Controller;
use Symfony\Bundle\FrameworkBundle\Request\ParamConverter\ConverterManager;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
use Symfony\Component\DependencyInjection\ContainerInterface;
use Symfony\Component\EventDispatcher\EventInterface;
/**
* Converts \ReflectionParameters for Controller actions into Objects if the \ReflectionParameter have a class
* (Typehinted).
*
* The filterController method must be connected to the core.controller event.
*
* @author Fabien Potencier <fabien.potencier@symfony-project.org>
* @author Henrik Bjornskov <hb@peytz.dk>
*/
class ParamConverterListener
{
/**
* @var ConverterManager
*/
protected $manager;
/**
* @param ConverterManager $manager
*/
public function __construct(ConverterManager $manager)
{
$this->manager = $manager;
}
/**
* @param EventInterface $event
* @param mixed $controller
*
* @return mixed
*
* @throws NotFoundHttpException
*/
public function filterController(EventInterface $event, $controller)
{
if (!is_array($controller)) {
return $controller;
}
$request = $event->get('request');
$method = new \ReflectionMethod($controller[0], $controller[1]);
foreach ($method->getParameters() as $param) {
if (null !== $param->getClass() && false === $request->attributes->has($param->getName())) {
try {
$this->manager->apply($request, $param);
} catch (\InvalidArgumentException $e) {
if (false === $param->isOptional()) {
throw new NotFoundHttpException(sprintf('Unable to convert parameter "%s".', $param->getName()), $e);
}
}
}
}
return $controller;
}
}