[英]Doctrine2 cascade entity creation
我有两个实体User和UserProfile。 UserProfile primaryKey值不是AUTO_INCREMENT,它是使用User的主键值的一对一关系。 创建新用户时出现错误:
类型为App \\ PublicBundle \\ Entity \\ User \\ UserProfile的实体缺少为“用户”字段分配的ID。 该实体的标识符生成策略要求在调用EntityManager#persist()之前填充ID字段。 如果要自动生成的标识符,则需要相应地调整元数据映射。
问题是如何保存具有下一个数据库和实体结构的实体:
用户DDL:
CREATE TABLE `user` (
`intUserID` int(10) unsigned NOT NULL AUTO_INCREMENT,
PRIMARY KEY (`intUserID`),
)
CREATE TABLE `user_profile` (
`intUserID` int(10) unsigned NOT NULL,
PRIMARY KEY (`intUserID`),
CONSTRAINT `user_profile_ibfk_1` FOREIGN KEY (`intUserID`) REFERENCES `user` (`intUserID`) ON DELETE CASCADE ON UPDATE CASCADE
)
用户实体:
/**
* @ORM\Table(name="user")
* @ORM\Entity
*/
class User
{
/**
* @var integer
*
* @ORM\Id
* @ORM\Column(name="intUserID", type="integer", nullable=false)
* @ORM\GeneratedValue(strategy="IDENTITY")
*/
protected $intuserid;
/**
* @var \App\PublicBundle\Entity\User\UserProfile
*
* @ORM\OneToOne(targetEntity="\App\PublicBundle\Entity\User\UserProfile",
* mappedBy="user",
* cascade={"persist", "remove"}
* )
*/
protected $profile;
}
UserProfile实体:
/**
* @ORM\Table(name="user_profile")
* @ORM\Entity
*/
class UserProfile
{
/**
* @var \App\PublicBundle\Entity\User\User
*
* @ORM\Id
* @ORM\OneToOne(targetEntity="\App\PublicBundle\Entity\User\User",
* inversedBy="profile"
* )
* @ORM\JoinColumns({
* @ORM\JoinColumn(name="intUserID", referencedColumnName="intUserID")
* })
*/
protected $user;
}
注册动作
private function registration(Request $request, $tpl)
{
$user = new User();
$form = $this->$form($user, 'Create');
$form->handleRequest($request);
if ('POST' === $request->getMethod())
{
if ($form->isValid())
{
$em->getConnection()->beginTransaction();
try
{
$em = $this->getManager();
$em->persist($user);
$em->flush();
$this->sendSuccessEmail($user);
$em->getConnection()->commit();
}
catch (\Exception $e)
{
$em->getConnection()->rollback();
throw $e;
}
return $this->redirect($this->generateUrl('app_profile'));
}
}
return $this->render($tpl, array(
'entity' => $user,
'form' => $form->createView()
));
}
正确的方法是,在persist和flush之前将其设置为空配置文件,然后再次调用persist和flush:
注册动作
private function registration(Request $request, $tpl)
{
$user = new User();
$form = $this->$form($user, 'Create');
$form->handleRequest($request);
if ('POST' === $request->getMethod())
{
if ($form->isValid())
{
$em->getConnection()->beginTransaction();
try
{
$user->setProfile(null);
$em = $this->getManager();
$em->persist($user);
$em->flush();
$user->setProfile(new UserProfile);
$user->getProfile()->setUser($user);
$em = $this->getManager();
$em->persist($user);
$em->flush();
$this->sendSuccessEmail($user);
$em->getConnection()->commit();
}
catch (\Exception $e)
{
$em->getConnection()->rollback();
throw $e;
}
return $this->redirect($this->generateUrl('app_profile'));
}
}
return $this->render($tpl, array(
'entity' => $user,
'form' => $form->createView()
));
}
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