ORM自引用实体未正确持久保存到数据库中

时间:2012-08-22 06:37:37

标签: database orm symfony doctrine fosuserbundle

我一直想把这个弄清楚2个小时,我似乎无法理解出了什么问题。

我正在使用Symfony2和FOSUserBundle。

我创建了一个扩展FOSUserBundle的BaseUser类的User实体。在这个用户实体中,我有3个变量,id,my_mentors和my_mentees。更多详情如下:

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

/**
 * @ORM\ManyToMany(targetEntity="User", mappedBy="my_mentees")
 */
protected $my_mentors;

/**
 * @ORM\ManyToMany(targetEntity="User", inversedBy="my_mentors")
 * @ORM\JoinTable(name="mentor_and_mentee_relationship",
 *      joinColumns={@ORM\JoinColumn(name="user_id", referencedColumnName="id")},
 *      inverseJoinColumns={@ORM\JoinColumn(name="mentors_or_mentees_user_id", referencedColumnName="id")}
 *      )
 */
protected $my_mentees;

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

public function __toString()
{
    return $this->getUsername();
}

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

/**
 * Add my_mentors
 *
 * @param Fitness\FitBundle\Entity\User $myMentors
 */
public function addUser(\Fitness\FitBundle\Entity\User $myMentors)
{
    $this->my_mentors[] = $myMentors;
}

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

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

我创建了自引用,因为Mentee(用户)将订阅Mentor(也是用户)。我尝试使用以下函数执行此操作:

public function subscribeAction($menteeID, $mentorID)
{                
    $em = $this->getDoctrine()
               ->getEntityManager();

    $mentor = $em->getRepository('TestBundle:User')
                ->find($mentorID);
    $mentee = $em->getRepository('TestBundle:User')
                ->find($menteeID);                

    $currentMentors = $mentee->getMyMentors();
    if ($currentMentors->contains($mentor))
        $this->get('session')->setFlash('subscribe-notice', 'You have already signed up to this mentor!');
    else
    {
        $mentee->setIsMentor(false);
        $mentee->addUser($mentor);
        $mentor->addUser($mentee);
        $em->persist($mentee);
        $em->persist($mentor);
        $em->flush();            
        $this->get('session')->setFlash('subscribe-notice', 'Subscription succesful!');
    }

    return $this->redirect($this->generateUrl('TestBundle_testpage', array('id' => $mentor->getMentorProfile()->getId()) ));
}

这里的问题是,当我检查数据库时,它不会保留数据。导师 - 被指导者关系信息不存储在注释声明的“mentor_and_mentee_relationship”表中。

我坚持让$导师和$ mentee试图让它发挥作用,但显然它没有。

我的ORM注释是否可能被错误地声明?

1 个答案:

答案 0 :(得分:0)

您正在使用相同的功能(addUser)添加指导者并添加受指导者。这是错的。首先,您需要在实体中使用两个不同的setter(我更改了addUser的名称以使其清晰)

/**
 * Add my_mentors
 *
 * @param Fitness\FitBundle\Entity\User $myMentors
 */
public function addMentor(\Fitness\FitBundle\Entity\User $myMentors)
{
    $this->my_mentors[] = $myMentors;
}

/**
 * Add my_mentees
 *
 * @param Fitness\FitBundle\Entity\User $myMentees
 */
public function addMentee(\Fitness\FitBundle\Entity\User $myMentees)
{
    $this->my_mentees[] = $myMentees;
}

然后在你的控制器中执行:

        $mentee->addMentor($mentor);
        $mentor->addMentee($mentee);