php 如何从链接实体中获取第一个实体
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How to get the first entity from linked entity
提问by Mirage
I have the
我有
Class User {
@OneToMany
private $profiles
}
Now I have the $user entity in my controller but I also want the first or last profile based on date. How can I achieve this?
现在我的控制器中有 $user 实体，但我还想要基于日期的第一个或最后一个配置文件。我怎样才能做到这一点？
I have the method getProfiles()but I think that will return the array collection.
我有方法，getProfiles()但我认为这将返回数组集合。
回答by Lusitanian
$user->getProfiles()->first()
will do it, as long as you are declaring the $profilesproperty as a
会这样做，只要您将$profiles财产声明为
\Doctrine\Common\Collections\ArrayCollection
in the constructor of your class.
在你的类的构造函数中。
回答by user1097795
You can easily get the first one like that :
您可以轻松获得第一个这样的：
$first = $this->get('doctrine.manager')->getRepository(MyEntity::class)->findOneBy([]);
