php - 选择时找不到 Symfony3 Doctrine 多对多列

Question

我是 Symfony 和 Doctrine 的初学者，我对多对多关系有疑问。我有接下来的两个实体，与多对多相关。

AppBundle/Entity/User.php

/**
* @ORM\ManyToMany(targetEntity="Team", mappedBy="user", cascade={"all"})
*
*/
private $team;

public function __construct()
{
    parent::__construct();

    $this->team = new \Doctrine\Common\Collections\ArrayCollection();
}

/**
 * Add team
 *
 * @param \AppBundle\Entity\Team $team
 *
 * @return User
 */
public function addTeam(\AppBundle\Entity\Team $team)
{
    $this->team[] = $team;

    return $this;
}

/**
 * Remove team
 *
 * @param \AppBundle\Entity\Team $team
 */
public function removeTeam(\AppBundle\Entity\Team $team)
{
    $this->team->removeElement($team);
}

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

AppBundle/Entity/Team.php

/**
* @ORM\ManyToMany(targetEntity="User", inversedBy="team", cascade={"persist"})
* @ORM\JoinTable(name="user_team")
*/
private $user;

public function __construct()
{

    $this->user = new \Doctrine\Common\Collections\ArrayCollection();
}

/**
 * Add user
 *
 * @param \AppBundle\Entity\User $user
 *
 * @return Team
 */
public function addUser(\AppBundle\Entity\User $user)
{
    $this->user[] = $user;

    return $this;
}

/**
 * Remove user
 *
 * @param \AppBundle\Entity\User $user
 */
public function removeUser(\AppBundle\Entity\User $user)
{
    $this->user->removeElement($user);
}

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

在我的 Controller 中，我有以下代码:

AppBundle/Controller/DefaultController.php

$em = $this->getDoctrine()->getManager();        
$em->getRepository('AppBundle:Team')->findBy(array('user'=>$usr));

我有下一个错误:

An exception occurred while executing 'SELECT t0.id AS id_1, t0.name AS name_2, t0.description AS description_3, t0.active AS active_4, t0.date_add AS date_add_5, t0.date_modified AS date_modified_6 FROM team t0 WHERE user_team.user_id = ?' with params [2]:

SQLSTATE[42S22]: Column not found: 1054 Unknown column 'user_team.user_id' in 'where clause' 500 Internal Server Error - InvalidFieldNameException

我做错了什么？

关系？ Controller ？也许一切？

谢谢你:)

Answer 1

嗯，看来你忘了在这里运行 doctrine:schema:update 命令。

此外，尝试修复此注释:

/**
* @ORM\ManyToMany(targetEntity="User", inversedBy="team", cascade={"persist"})
* @ORM\JoinTable(name="user_team")
*/

类似于

/**
 * @ManyToMany(targetEntity="User")
 * @JoinTable(name="User_Team",
 *      joinColumns={@JoinColumn(name="user_id", referencedColumnName="id")},
 *      inverseJoinColumns={@JoinColumn(name="team_id", referencedColumnName="id")}
 * )
 */