在Symfony 3中创建FOSUserBundle和自定义实体之间的多对多关系

// src/AppBundle/Entity/Role.php

namespace AppBundle\Entity;

use Doctrine\ORM\Mapping as ORM;

/**
 * @ORM\Entity
 * @ORM\Table(name="roles")
 */
class Role
{
    /**
     * @ORM\Id
     * @ORM\GeneratedValue(strategy="AUTO")
     * @ORM\Column(type="integer")
     */
    private $id;

    /**
     * @ORM\Column(type="string", length=255)
     */
    private $name;

    // Getters and setters
}

// src/AppBundle/Entity/User.php

namespace AppBundle\Entity;

use FOS\UserBundle\Model\User as BaseUser;
use Doctrine\ORM\Mapping as ORM;

/**
 * @ORM\Entity
 * @ORM\Table(name="users")
 */
class User extends BaseUser
{
    /**
     * @ORM\Id
     * @ORM\GeneratedValue(strategy="AUTO")
     * @ORM\Column(type="integer")
     */
    protected $id;

    /**
     * @ORM\ManyToMany(targetEntity="AppBundle\Entity\Role")
     * @ORM\JoinTable(name="user_roles",
     *      joinColumns={@ORM\JoinColumn(name="user_id", referencedColumnName="id")},
     *      inverseJoinColumns={@ORM\JoinColumn(name="role_id", referencedColumnName="id")}
     * )
     */
    private $roles;

    public function __construct()
    {
        parent::__construct();
        $this->roles = new ArrayCollection();
    }

    // Getters and setters
}

$ php bin/console doctrine:schema:update --force

// 创建一个新的用户
$user = new AppBundle\Entity\User();
$user->setUsername('username');
$user->setEmail('email@example.com');
$user->setPlainPassword('password');
$user->addRole($role); // 添加角色
// ...

// 获取用户的角色
$roles = $user->getRoles();

// 检查用户是否具有某个角色
if ($user->hasRole('ROLE_ADMIN')) {
    // ...
}