关联实体未合并

本文介绍了关联实体未合并的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

我有两个这样的关联实体：

I have 2 associated entities like this:

class Solicitation {
    <some fields>
    /**
     * @var \User
     *
     * @ORM\ManyToOne(targetEntity="User", fetch="EAGER", inversedBy="solicitation")
     * @ORM\JoinColumns({
     *   @ORM\JoinColumn(name="id_user", referencedColumnName="id_user", nullable=false)
     * })
     * @OrderBy({"nome" = "ASC"})
     */
    private $user;
    <more fields>
}

我不想级联操作。问题是当我尝试在持续征集之前合并现有的用户，如下所示：

I don't want to cascade operations. The problem is when I try to merge an existing User before persisting Solicitation, like this:

$em = $this->getDoctrine()->getManager();
if (!(\Doctrine\ORM\UnitOfWork::STATE_MANAGED === $em->getUnitOfWork()->getEntityState($solicitation->getUser()))) {
    $em->merge($solicitation->getUser());
}
$em->persist($solicitation);

...不会将User UnitOfWork状态更改为MANAGED。我还是分离，我收到和保存错误。

...it won't change User UnitOfWork state to "MANAGED". I`ts still "DETACHED" and I receive and error on saving.

推荐答案

我花了一整天找到

$em->merge($solicitation->getUser())

不会更改原始实体，它返回一个被盗的实体。所以正确的是：

doesn't change the original entity, it returns a menaged entity. So the correct is:

$solicitation->setUser($em->merge($solicitation->getUser()));

然后持续征求意见。做这个问题，以防其他人需要这个。

then persist solicitation. Made this question in case someone else needs this.

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unitOfWork