DB router

RequestListener.php

// src/AppBundle/EventListener/RequestListener.php
namespace AppBundle\EventListener;

use Symfony\Component\HttpKernel\Event\GetResponseEvent;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\HttpKernel\Exception\HttpExceptionInterface;

class RequestListener
{
    public function onKernelRequest(GetResponseEvent $event)
    {
      // priklad: /vyrobce/produkt
      $url = $event->getRequest()->getPathInfo();
      $urlParts = explode('/', $url);
      $action = $urlParts[2];
      
      switch ($urlParts[1]) {
        case 'vyrobce':
          $controller = 'AppBundle\VyrobceController::' . $action . 'Action';
          break;
        default:
          $controller = 'Default';
      }
      
      $request->attributes->set('_controller', $controller);
    }
}

services.yml

# app/config/services.yml
services:
    app.request_listener:
        class: AppBundle\EventListener\RequestListener
        tags:
            - { name: kernel.event_listener, event: kernel.request, priority: 33 }