Question

我克隆一个实体并且在我持久化之后调用prePersist函数来设置创建日期和用户，并且当返回时，flush函数为我克隆的实体提供一个Undefined索引

克隆功能是：

public function cloneService($id)
{

    $manager = $this->container->get('doctrine')->getManager();
    $repository = $this->em->getRepository(Article::class);
    $article = $repository->find($id);

    $clonedObject = clone $article;
    $clonedObject->setTitle('[Duplicate]'.$article->getTitle());
    $clonedObject->setEnabled(false);

    $manager->persist($clonedObject);
    $manager->flush();


    return ;
}

和prePersist是

public function prePersist(LifecycleEventArgs $args)
{
    if ($this->tokenStorage->getToken() === null ) {
        return ;
    }
    $user = $this->tokenStorage->getToken()->getUser();
    $object = $args->getEntity();


    if ($this->hasDateTimeTrait($object)) {
        $this->setCreated($user, $object);
        $this->setUpdated($user, $object);
    }
}

，结果是

DoctrineORMEntityManager_0000000041a2ac07000000000bca81cc14d7185c1fc2068ccb74c3ea035ec2eb-＆GT;齐平（）在src / Exozet / AcademyBundle / Service / CloneService.php（第45行） $ clonedObject-＆GT;的setEnabled（假）; $管理器 - ＆GT;坚持（$ clonedObject）; $ manager = $这个 - ＆GT;容器 - ＆GT;获得（ '教义'） - ＆GT; getManager（）; $ repository = $这个 - ＆GT; EM-＆GT; getRepository（文章::类）; $管理器 - ＆GT;冲洗（）;

Answer 1

尝试

...
$clonedObject = clone $article;
$clonedObject->setId(null);
...

实体刷新未定义的索引

1 个答案: