Symfony2：FOSUserBundle 删除操作错误

Posted 2023-04-12

【中文标题】Symfony2：FOSUserBundle 删除操作错误

【英文标题】：Symfony2: FOSUserBundle Delete Action Error

【发布时间】：2015-02-10 04:12:55

【问题描述】：

对 Symfony2 相当陌生；我现在使用 FOSUserBundle 作为我的用户提供程序。由于它不提供删除操作的控制器，所以我自己编写了：

    /**
         * Delete user
         *
         * @param integer $id
         *
         * @Route("/delete/id")
         *
         * @return RedirectResponse
         */

        public function deleteAction($id)
        
            $em = $this->getDoctrine()->getManager();
            $um = $this->get('fos_user.user_manager');

            $user = $um->findUserBy(array(
                'id' => $id
                )
            );

            $em->remove($user);
            $em->flush();

           return new RedirectResponse("star9988_user_user_index");
        

并从我的模板中添加了指向路径的链接：

    <a href=" path('star9988_user_user_delete', 'id': user.id) ">

我最初尝试传入 ObjectManager，通过 ID 查询 User 对象，然后使用 deleteUser 方法将其删除，但由于某种原因，它不允许我使用通常的构造函数注入方法获取 ObjectManager。

因此，我求助于调用 EntityManager，并在我的 $user 对象上调用它的 remove() 方法。

结果很奇怪：当我用 SequelPro 检查我的数据库时，我注意到指定的用户对象确实被删除了。但是，浏览器返回此错误：

EntityManager#remove() 期望参数 1 是一个实体对象， 给定 NULL。

任何帮助将不胜感激。

编辑：

I have changed my code to the following:

    /**
     * Delete user
     *
     * @param integer $id
     *
     * @Route("/delete/id")
     *
     * @return RedirectResponse
     */

    public function deleteAction($id)
    
        $em = $this->getDoctrine()->getManager();

        /** @var \Star9988\ModelBundle\Entity\User $user */
        $user = $this->getDoctrine()->getRepository('ModelBundle:User')->find($id);

        $em->remove($user);
        $em->flush();

       return new RedirectResponse("star9988_user_user_index");
    

奇怪的是，我得到了相同的结果：实体已从数据库中删除。

看来我的路由由于某种原因没有传递参数。

调试 - 选择 t0.username AS username1, t0.username_canonical AS username_canonical2, t0.email AS email3, t0.email_canonical AS email_canonical4, t0.enabled AS enabled5, t0.salt AS salt6, t0.password AS password7, t0.last_login AS last_login8, t0.locked AS locked9, t0.expired AS expired10, t0.expires_at AS expires_at11, t0.confirmation_token 作为confirmation_token12， t0.password_requested_at AS password_requested_at13, t0.roles AS 角色14，t0.credentials_expired AS credentials_expired15， t0.credentials_expire_at AS credentials_expire_at16, t0.id AS id17, t0.FirstName AS FirstName18, t0.LastName AS LastName19, t0.creditLimit AS creditLimit20, t0.creditAvailable AS creditAvailable21, t0.accountBalance AS accountBalance22, t0.rebate AS rebate23, t0.parent AS parent24 FROM StarUsers t0 WHERE t0.id = ?限制 1 个

【问题讨论】：

FOSUserBundle 带有一个用户管理器github.com/FriendsOfSymfony/FOSUserBundle/blob/master/Doctrine/…，它允许您执行所有这些操作：github.com/FriendsOfSymfony/FOSUserBundle/blob/master/Resources/…

【参考方案1】：

尝试将 id 设置为必需参数，如this example：

/**
 * @Route("
 *    path          = "/delete/article/id", 
 *    name          = "blog_admin_delete_article"
 *    requirements  =  "id" = "\d+" ,
 *    methods       =  "GET" 
 * )
 */
public function deleteArticleAction($id)  /* ... */ 

您还可以签入加载用户的代码：

    /** @var \Star9988\ModelBundle\Entity\User $user */
    $user = $this->getDoctrine()->getRepository('ModelBundle:User')->find($id);
    if (!$user instanceof User) 
        throw new NotFoundHttpException('User not found for id ' . $id);
    

希望对你有帮助。

【参考方案2】：

当你得到用户管理器时

$um = $this->container->get('fos_user.user_manager')

您可以在获得这样的用户操作后使用删除：

$um->deleteUser($user);

但你需要在之前检查用户是否为空。