GroupeController.php

<?php

namespace App\Controller;

use App\Entity\Groupe;
use Doctrine\ORM\EntityManagerInterface;
use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\Routing\Annotation\Route;

class GroupeController extends AbstractController
{
    private $em;

    public function __construct(EntityManagerInterface $em)
    {
        $this->em = $em;
    }

    /**
     * @Route("/groupes", name="liste_groupe")
     */
    public function listeGroupeAction()
    {
        return $this->render('groupe/liste.html.twig', array(
            'groupes' => $this->em->getRepository(Groupe::class)->findBy(array('enabled' => true), array('createdAt' => 'DESC'))
        ));
    }


    /**
     * @Route("/groupe/{slug}", name="show_groupe")
     */
    public function showGroupeAction(Groupe $groupe)
    {
        return $this->render('groupe/show.html.twig', array(
            'groupe' => $groupe
        ));
    }

}