在 Doctrine EventListener 中获取用户 [英] Get User in a Doctrine EventListener

问题描述

当我注册一个新的质粒实体时，我想给他一个自动名称(如:p0001、p0002、p0003)，为此，我需要在数据库中为特定用户选择最后一个质粒实体，获取其autoName，并使用以前的名称定义新名称.

when I register a new Plasmid Entity, I want give him an automatic name (like: p0001, p0002, p0003), to do this, I need to select in the database the last Plasmid entity for a specific User, get its autoName, and use this previous name to define the new one.

但是，当我在侦听器中注入 token_storage 时，令牌为空...在控制器中，我可以拥有用户，它可以工作.

But, when I inject the token_storage in my listener, the token is null... In the controller, I can have the user, it's work.

service.yml

The service.yml

    app.event_listener.plasmid:
    class: AppBundle\EventListener\PlasmidListener
    arguments: ["@security.token_storage"]
    tags:
        - { name: doctrine.event_listener, event: prePersist }

还有 PlasmidListener

And, the PlasmidListener

class PlasmidListener
{
private $user;

public function __construct(TokenStorage $tokenStorage)
{
    $this->user = $tokenStorage->getToken()->getUser();
}

public function prePersist(LifecycleEventArgs $args)
{
    $entity = $args->getEntity();

    // If the entity is not a Plasmid, return
    if (!$entity instanceof Plasmid) {
        return;
    }

    // Else, we have a Plasmid, get the entity manager
    $em = $args->getEntityManager();

    // Get the last plasmid Name
    $lastPlasmid = $em->getRepository('AppBundle:Plasmid')->findLastPlasmid($this->user);

    // Do something with the last plasmid in the database
}
}

如果有人知道为什么我可以在 Doctrine Listener 中获取实际用户?

If someone know why I can get the actual user in the Doctrine Listener ?

谢谢

推荐答案

我认为你应该在你的服务中存储指向 tokenStorage 类的指针而不是用户对象:

I think that you should store pointer to tokenStorage class in your service instead of user object:

class PlasmidListener
 {
    private $tokenStorage;

    public function __construct(TokenStorage $tokenStorage)
    {
        $this->tokenStorage = $tokenStorage;
    }

    public function prePersist(LifecycleEventArgs $args)
    {
        $user = $this->tokenStorage->getToken()->getUser();
        //...
    }
}

这篇关于在 Doctrine EventListener 中获取用户的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！