Symfony2 SQLSTATE [42S22]：未找到列：1054未知列

Question

我正嘗試創建待辦事項列表類應用程序。目前，我只是試圖根據用戶實例化用戶標識輸出所有任務。我在使用$user->getId()作爲user_id的參數編寫查詢時遇到了一些麻煩。

這是我有：

public function indexAction() 
    { 
     $user = $this->getUser(); 
     //var_dump($user); 

     $em = $this->getDoctrine()->getManager(); 
     $query = $em->createQuery(
      'SELECT p 
      FROM TaskBundle:Task p 
      WHERE p.user_id = :user_id' 
     )->setParameter('user_id', $user->getId()); 

     $tasks = $query->getResult(); 

     return $this->render('Default/index.html.twig', array(
       'tasks' => $tasks, 
     )); 
    } 

我試過的QueryBuilder和DQL，我得到同樣的錯誤。

An exception occurred while executing 'SELECT t0_.id AS id0, t0_.name AS name1, t0_.done AS done2, t0_.created AS created3, t0_.updated AS updated4, t0_.user_id_id AS user_id_id5 FROM tasks t0_ WHERE t0_.user_id_id = ?' with params [1]: 

SQLSTATE[42S22]: Column not found: 1054 Unknown column 't0_.user_id_id' in 'field list' 

Answer 1

用戶和任務之間的關係，創建了一個名爲user_id在我的數據庫列。因此，我必須將任務實體中的列名從user更改爲user_id。但是，我不必這樣做，所以我恢復了更改，現在查詢正在工作。

實體/ Task.php

/** 
    * @ORM\ManyToOne(targetEntity="Todo\UserBundle\Entity\User", inversedBy="") 
    * @ORM\JoinColumn() 
    */ 
    private $user; 

實體/ user.php的

/** 
    * @ORM\Id 
    * @ORM\Column(type="integer") 
    * @ORM\GeneratedValue(strategy="AUTO") 
    * @ORM\OneToMany(targetEntity="Todo\UserBundle\Entity\Task", mappedBy="user") 
    */ 
    protected $id; 

查詢：

$em = $this->getDoctrine()->getManager(); 
      $query = $em->createQuery(
       'SELECT p 
      FROM TaskBundle:Task p 
      WHERE p.user = :user' 
      )->setParameter('user', $user->getId()); 

      $tasks = $query->getResult(); 

      return $this->render('Default/index.html.twig', array(
       'tasks' => $tasks, 
      )); 

Answer 2

你的實體應該是這樣的：

Task{ 
private $user; 
..... 
} 

User{ 
....`enter code here` 
} 

你可以試試：

$query = $em->createQuery(
      'SELECT p 
      FROM TaskBundle:Task p 
      WHERE p.user = :user' 
     )->setParameter('user', $user);