不调用具有抽象基类的Doctrine 2 LifecycleCallbacks

Question

我有这种情况:

抽象类:

abstract class AbstractBase
{
    /**
     * @ORM\Id
     * @ORM\GeneratedValue
     * @ORM\Column(type="integer")
     * @var integer
     */
    protected $id;

    /**
     * @ORM\Column(type="datetime", name="updated_at")
     * @var \DateTime $updatedAt
     */
    protected $updatedAt;

    /**
     * @ORM\PreUpdate
     */
    public function setUpdatedAt()
    {
        die('THIS POINT IS NEVER REACHED');
        $this->updatedAt = new \DateTime();
    }
}

具体类:

/**
 * @ORM\Entity(repositoryClass="Entity\Repository\UserRepository")
 * @ORM\Table(name="users")
 * @ORM\HasLifecycleCallbacks
 */
class User extends AbstractBase
{
    // some fields, relations and setters/getters defined here, these all work as expected.
}

然后我在我的控制器中调用它,如下所示:

$user = $this->em->find('Entity\User', 1);
// i call some setters here like $user->setName('asd');
$this->em->flush();
die('end');

一切都按预期工作,所以抽象类的id字段为User实体创建,我可以访问它等等.问题是,从未达到"死('这个点永远不会达到')"这一行.(注意@ORM\PreUpdate)这意味着不会在继承的对象上调用lifecycleCallbacks.这是一个错误,还是有原因的？

Answer 1

您的抽象基类必须被添加为Mapped Superclasses并包含HasLifecycleCallbacks -Annotation.

更多信息:Doctrine文档中的继承映射.

/**
 * @ORM\MappedSuperclass
 * @ORM\HasLifecycleCallbacks
 */
abstract class AbstractBase
{
    [...]

    /**
     * @ORM\PreUpdate
     */
    public function setUpdatedAt()
    {
        $this->updatedAt = new \DateTime();
    }
}

/**
 * @ORM\Entity(repositoryClass="Entity\Repository\UserRepository")
 * @ORM\Table(name="users")
 */
class User extends AbstractBase
{
    // some fields, relations and setters/getters defined here, these all work as expected.
}