Symfony 一个用户多篇文章->；通过创建帖子创建新用户

我在使用Symfony和学说

我有两个实体，User和Pots。 每个登录用户都可以创建任意数量的帖子。 每个帖子都与一个用户关联

这就是工作流程：我与一个用户登录，这个用户创建一个帖子。一个新的帖子保存在数据库中，并在用户创建它时使用foreigkey

问题：当用户创建帖子时，帖子将被创建，但也会创建一个新用户。新帖子与新用户关联，而不是与登录用户关联

用户实体：

    namespace AppBundle\Entity;  
    use Doctrine\ORM\Mapping as ORM;
    use AppBundle\Entity\Post;

    /**
    * @ORM\Entity
    * @ORM\Table(name= "User")
    */

    class User 
    {
       /** 
          * @ORM\Column(type = "integer") 
          * @ORM\Id
          * @ORM\GeneratedValue("AUTO") 
       */ 
       private $id;  
        /**
            * @ORM\Column(type = "string", length = 50) 
        */
        private $account;
        /**
        * @ORM\Column(type = "string", length = 22)
        */
        private $password;
        /**
        * @ORM\Column(type = "string", length = 100)
        */
        private $email;
        /**
        * @ORM\Column(type = "integer", length = 1)
        */
        private $type;

        /**
        *
        * @ORM\OneToMany(targetEntity="Post", mappedBy="user")
        */

        private $posts;

        /**
         * Get id
         *
         * @return integer
         */
        public function getId()
        {
            return $this->id;
        }

        /**
         * Set account
         *
         * @param string $account
         *
         * @return User
         */
        public function setAccount($account)
        {
            $this->account = $account;

            return $this;
        }

        /**
         * Get account
         *
         * @return string
         */
        public function getAccount()
        {
            return $this->account;
        }

        /**
         * Set password
         *
         * @param string $password
         *
         * @return User
         */
        public function setPassword($password)
        {
            $this->password = $password;

            return $this;
        }

        /**
         * Get password
         *
         * @return string
         */
        public function getPassword()
        {
            return $this->password;
        }

        /**
         * Set mail
         *
         * @param string $mail
         *
         * @return User
         */
        public function setEmail($email)
        {
            $this->email = $email;

            return $this;
        }

        /**
         * Get mail
         *
         * @return string
         */
        public function getEmail()
        {
            return $this->email;
        }

        /**
         * Set type
         *
         * @param integer $type
         *
         * @return User
         */
        public function setType($type)
        {
            $this->type = $type;

            return $this;
        }

        /**
         * Get type
         *
         * @return integer
         */
        public function getType()
        {
            return $this->type;
        }

        /**
         * Constructor
         */
        public function __construct()
        {
            $this->posts = new \Doctrine\Common\Collections\ArrayCollection();
        }

        /**
         * Add post
         *
         * @param \AppBundle\Entity\Post $post
         *
         * @return User
         */
        public function addPost(\AppBundle\Entity\Post $post)
        {
            $this->posts[] = $post;

            return $this;
        }

        /**
         * Remove post
         *
         * @param \AppBundle\Entity\Post $post
         */
        public function removePost(\AppBundle\Entity\Post $post)
        {
            $this->posts->removeElement($post);
        }

        /**
         * Get posts
         *
         * @return \Doctrine\Common\Collections\Collection
         */
        public function getPosts()
        {
            return $this->posts;
        }
    }

邮政实体：

    namespace AppBundle\Entity;  
    use Doctrine\ORM\Mapping as ORM;
    use AppBundle\Entity\User;
    use Symfony\Component\HttpFoundation\File\File;
    use Vich\UploaderBundle\Mapping\Annotation as Vich;



    /**
    * @ORM\Entity
    * @ORM\Table(name = "Post")
    * @Vich\Uploadable
    */

    class Post 
    {

        /**
        * @ORM\Column(type = "integer")
        * @ORM\Id
        * @ORM\GeneratedValue("AUTO")
        */

        private $id;

        /**
        * @ORM\Column(type = "string", length = 25)
        */
        private $title;
        /**
        * @ORM\Column(type = "string", length = 255)
        */
        private $text;

        /**
        * @ORM\Column(type= "string", length = 250)
        */

        private $pic;

        /**
        * @Vich\UploadableField(mapping="post_file", fileNameProperty="pic")
        *
        */

        private $picFile;

        /**
        * @ORM\ManyToOne(targetEntity="User", inversedBy="posts", cascade={"persist"})
        * @ORM\JoinColumn(name="user_id", referencedColumnName="id")
        */

        private $user;



    public function getPicFile(){

        return $this->picFile;

    }

    public function setPicFile(File $picFile = null){

        $this->picFile = $picFile;

        return $this;
    }


        /**
         * Set user
         *
         * @param \AppBundle\Entity\User $user
         *
         * @return Coach
         */
        public function setUser(\AppBundle\Entity\User $user = null)
        {
            $this->user = $user;

            return $this;
        }

        /**
         * Get user
         *
         * @return \AppBundle\Entity\User
         */
        public function getUser()
        {
            return $this->user;
        }

        /**
         * Set title
         *
         * @param string $title
         *
         * @return Post
         */
        public function setTitle($title)
        {
            $this->title = $title;

            return $this;
        }

        /**
         * Get title
         *
         * @return string
         */
        public function getTitle()
        {
            return $this->title;
        }

        /**
         * Set text
         *
         * @param string $text
         *
         * @return Post
         */
        public function setText($text)
        {
            $this->text = $text;

            return $this;
        }

        /**
         * Get text
         *
         * @return string
         */
        public function getText()
        {
            return $this->text;
        }

        /**
         * Set pic
         *
         * @param string $pic
         *
         * @return Post
         */
        public function setPic($pic)
        {
            $this->pic = $pic;

            return $this;
        }

        /**
         * Get pic
         *
         * @return string
         */
        public function getPic()
        {
            return $this->pic;
        }

        /**
         * Set id
         *
         * @param integer $id
         *
         * @return Post
         */
        public function setId($id)
        {
            $this->id = $id;

            return $this;
        }

        /**
         * Get id
         *
         * @return integer
         */
        public function getId()
        {
            return $this->id;
        }
    }

控制器： 注意：下面是从会话中获取已登录用户的步骤。这是可行的，我从我使用的用户那里输出id，它是正确的id

public function FrameCoachNewAction(Request $request)
    {
        $session = $request->getSession();
        $session->start();
        $user = $session->get('user');

        $post = new Post();
        $form = $this->createForm(PostType::class, $post);
        $form->handleRequest($request);

        if($form->isSubmitted() && $form->isValid()){

            $post = $form->getData();       
            $post->setUser($user);

            $doct = $this->getDoctrine()->getManager();

            $doct->persist($post);



            $doct->flush();

            //return New Response($post->getUser()->getId());

            return $this->RedirectToRoute('app_frame_coach');
        }else{
            return $this->render('/frame/frame_coach_new.html.twig', array('form' => $form->createView(), 'user' => $user));
        }
    }

---

用户是强大的一方，因此您应该将cascade={“persist”}选项移动到用户，这样用户就可以保存帖子，而不是以其他方式保存帖子。cascade={“persist”}选项似乎正在重写setUser方法。当您使用cascade={“persist”}选项时，该实体将创建targetEntity。

除了@Juan I.Morales Pestana之外

class User 
{
    // ...


     /**
      *
      * @ORM\OneToMany(
      *    targetEntity="Post", 
      *    mappedBy="user", 
      *    cascade={"persist"}
      *    )
      */ 
      private $posts;

      // ...

     /**
      * Constructor
      */
      public function __construct()
      {
          $this->posts = new \Doctrine\Common\Collections\ArrayCollection();
      }

      /**
       * Add post
       *
       * @param \AppBundle\Entity\Post $post
       *
       * @return User
       */
       public function addPost(\AppBundle\Entity\Post $post)
       {
           $this->posts[] = $post;

           $post->setUser($this);

           return $this;
       }

---

我像你说的那样离开了实体，但我把控制器改成了。会话用户对象无法将其与帖子关联。因此，我只是从会话中删除ID，然后再次搜索用户对象，将该ID放入数据库并使用此instade

public function FrameCoachNewAction(Request $request)
{
    $session = $request->getSession();
    $session->start();
    $users = $session->get('user');

    $repo = $this->getDoctrine()->getRepository(User::class);
    $user = $repo->find($users->getId());




    $post = new Post();
    $form = $this->createForm(PostType::class, $post);
    $form->handleRequest($request);

    if($form->isSubmitted() && $form->isValid()){
        $doct = $this->getDoctrine()->getManager();
        $post = $form->getData();       
        $post->setUser($user);

        $doct->persist($post);
        $doct->flush();

        //return New Response($post->getUser()->getId());

        return $this->RedirectToRoute('app_frame_coach');
    }else{
        return $this->render('/frame/frame_coach_new.html.twig', array('form' => $form->createView(), 'user' => $user));
    }
}

---

$session=$request->getSession（）$会话->开始（）$用户=$session->get（'user'）

为什么不

$user=$this->getUser（）

它会返回sf应用程序中连接的当前用户。我在你的代码中没有看到任何错误，除了这个部分尝试在用户的属性帖子上移动你的cascade={“persist”}要让用户登录，你应该使用$this->get（'security.token_storage'）->getToken（）->getUser（）。看：我做了你说的更改，但我发现了这个错误：通过关系“AppBundle\entity\Post\user”找到了一个新实体，该关系未配置为级联实体：AppBundle\entity的持久化操作\User@000000004e4d723a0000000027513b66. 要解决此问题，请对此未知实体显式调用EntityManager#persist（），或在映射中配置cascade persist此关联，例如@manytone（..，cascade={“persist”}）。如果您无法找到导致问题的实体，请执行“AppBundle\entity\User##_-toString（）”以获取线索。仍然收到相同的错误，通过关系“AppBundle\entity\Post#User”找到了一个新实体，该关系未配置为级联实体的持久化操作：AppBundle\entity\User@0000000073015acf0000000046a06425. 要解决此问题，请对此未知实体显式调用EntityManager#persist（），或在映射中配置cascade persist此关联，例如@manytone（..，cascade={“persist”}）。如果您无法找到导致问题的实体，请执行“AppBundle\entity\User##_-toString（）”以获取线索。请尝试清理数据库并从头更新架构。谢谢，我没有使用会话对象解决了此问题。见上文安瑟。