EntityRouter

EntityRouter.php

<?php

use Symfony\Component\Routing\RouterInterface;
use Symfony\Component\Routing\RequestContext;
use Symfony\Component\Routing\RouteCollection;
use Symfony\Component\Routing\Exception\RouteNotFoundException;
use Symfony\Component\Routing\Exception\ResourceNotFoundException;
use Symfony\Component\Routing\Exception\MethodNotAllowedException;
use Symfony\Component\Routing\Route;
use Symfony\Component\Routing\Generator\UrlGenerator;

class EntityRouter implements RouterInterface
{
    const NAME = 'entity';
    protected $context;
    protected $service;
    protected $route;
    protected $collection;
    protected $generator;

    public function __construct(ServiceInterface $service, RequestContext $context)
    {
        $this->service = $service;
        $this->context = $context;
        $this->route = new Route('/{slug}', array('_controller' => '<put a default here>'),array('slug' => '.+'));
        $this->collection = new RouteCollection();
        $this->collection->add(self::NAME, $this->route);
        $this->generator = new UrlGenerator($this->collection, $this->context);
    }

    public function setContext(RequestContext $context)
    {
        $this->context = $context;
        $this->generator->setContext($context);
    }

    public function getContext()
    {
        return $this->context;
    }

    public function getRouteCollection()
    {
        return $this->collection;
    }

    public function generate($name, $parameters = array(), $absolute = false)
    {
        return $this->generator->generate($name, $parameters, $absolute);
    }

    public function match($pathinfo)
    {
        $slug = substr($pathinfo, 1);
        $entity = $this->service->getEntityBySlug($slug);
        if (null === $entity) {
            throw new ResourceNotFoundException("No entity for slug $slug found");
        }

        return array_merge($this->route->getDefaults(), array('_route' => self::NAME, 'entity' => $entity));
    }
}

Really nice work. I think I could use that! Thanks.