16

我正在使用 ZF2 与学说我收到此错误。

在“Subject\Entity\Subject#user”中找不到目标实体 Entity\User。

这是我的代码的片段。

<?php

namespace Subject\Entity;

use Doctrine\ORM\Mapping as ORM;
use Zend\InputFilter\InputFilter;
use Zend\InputFilter\Factory as InputFactory;
use Zend\InputFilter\InputFilterAwareInterface;
use Zend\InputFilter\InputFilterInterface;
/** 

* @ORM\Entity

* @ORM\Table(name="subject")

* @property string $subjectname

* @property int $user_id

* @property int $id

*/
 class Subject implements InputFilterAwareInterface {

  protected $inputFilter;
 /**

 * @ORM\Id

 * @ORM\Column(type="integer");

 * @ORM\GeneratedValue(strategy="AUTO")

 */
protected $id;
/**

 * @ORM\Column(type="string")

 */
protected $subjectname;

/**
 * @ORM\ManyToOne(targetEntity="Entity\User", inversedBy="subjects")
 * @var User|null
 */
private $user;

/** @return User|null */
public function getUser() {
    return $this->user;
}

/** @param User $user */
public function setUser(User $user) {
    if($user === null || $user instanceof User) {
        $this->user = $user;
    } else {
        throw new InvalidArgumentException('$user must be instance of Entity\User or null!');
    }
}}

然后是我的“用户”实体

namespace Subject\Entity;

use Doctrine\ORM\Mapping as ORM;
use Zend\InputFilter\InputFilter;
use Zend\InputFilter\Factory as InputFactory;
use Zend\InputFilter\InputFilterAwareInterface;
use Zend\InputFilter\InputFilterInterface;

/*
* @ORM\Entity

* @ORM\Table(name="users")

* @property string $username

* @property string $password

* @property int $id

*/
class User implements InputFilterAwareInterface {

 protected $_username;
 protected $_password;

 /**
 * @ORM\OneToMany(targetEntity="Entity\Subject", mappedBy="user")
 * @var Collection
 */
private $subjects;

/** @ORM\Id() @ORM\Column(type="integer") @ORM\GeneratedValue(strategy="AUTO") @var   int */
protected $_id;

public function __get($property) {

    return $this->$property;
}

public function __set($property, $value) {

    $this->$property = $value;
}

//Getters and setters

/** @return Collection */
public function getSubjects() {
    return $this->comments;
}

/** @param Comment $comment */
public function addSubject(Subject $comment) {
    $this->comments->add($comment);
    $comment->setUser($this);
}

}

4

2 回答 2

32

您的实体声明不正确:

 * @ORM\ManyToOne(targetEntity="Entity\User", inversedBy="subjects")

这应该是这样的:

 * @ORM\ManyToOne(targetEntity="Subject\Entity\User", inversedBy="subjects")

或者,由于这两个类共享同一个命名空间,你也可以这样使用:

 * @ORM\ManyToOne(targetEntity="User", inversedBy="subjects")

必须是完全限定的targetEntity类名 (FQCN),除非引用同一命名空间中的类,在这种情况下可以使用短名称(根据上面的最后一个示例)。

于 2013-02-05T12:34:41.897 回答
1

在我们的例子中,文件名与类名不同:它只是一个错字。

于 2020-07-23T09:36:00.163 回答