使用Symfony 3访问多对一关系上的用户分数

namespace App\Entity;

use Doctrine\ORM\Mapping as ORM;

/**
 * @ORM\Entity
 */
class User
{
    // ...

    /**
     * @ORM\OneToMany(targetEntity="Score", mappedBy="user")
     */
    private $scores;

    // ...

    public function __construct()
    {
        $this->scores = new ArrayCollection();
    }

    // ...
}

namespace App\Entity;

use Doctrine\ORM\Mapping as ORM;

/**
 * @ORM\Entity
 */
class Score
{
    // ...

    /**
     * @ORM\ManyToOne(targetEntity="User", inversedBy="scores")
     * @ORM\JoinColumn(name="user_id", referencedColumnName="id")
     */
    private $user;

    // ...

    public function getUser()
    {
        return $this->user;
    }

    public function setUser(User $user)
    {
        $this->user = $user;
    }

    // ...
}

namespace App\Controller;

use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
use Symfony\Component\Routing\Annotation\Route;
use App\Entity\User;

class UserController extends AbstractController
{
    /**
     * @Route("/user/{id}/scores", name="user_scores")
     */
    public function scores($id)
    {
        $user = $this->getDoctrine()->getRepository(User::class)->find($id);

        if (!$user) {
            throw $this->createNotFoundException('User not found');
        }

        $scores = $user->getScores();

        return $this->render('user/scores.html.twig', [
            'user' => $user,
            'scores' => $scores,
        ]);
    }
}

{# templates/user/scores.html.twig #}

<h1>{{ user.name }}'s Scores</h1>

<ul>
    {% for score in scores %}
        <li>{{ score.value }}</li>
    {% endfor %}
</ul>