如何将实体管理器添加到自定义类或服务中？ [英] How can I add the Entity Manager to a custom class or service?

问题描述

在Symfony2中，我如何将Doctrine的实体管理器添加到自定义类或服务中？ $ em = $ this-> get（doctrine.orm.entity_manager）;
和 $ em = $ this-> getDoctrine（） - > getEntityManager（） ;

两个都失败了，这导致我尝试用我的自定义类/服务扩展Controller类，并且死于一个巨大的球

解决方案

您需要将实体管理器服务注入到您的自定义服务中。您的服务定义应如下所示：

  my.service.name：
 class：my\class 
参数：[@ doctrine.orm.default_entity_manager] 
  

确保您的服务的 __构造方法将实体管理器作为参数。

请参阅服务容器一章了解更多信息。

BTW， $ this-> getDoctrine（）是一种快捷方式，只能在扩展的类中运行Symfony\Bundle\FrameworkBundle\Controller\Controller

In Symfony2, how can I go about adding Doctrine's entity manager to a custom class or service?

I have tried $em = $this->get("doctrine.orm.entity_manager"); and $em = $this->getDoctrine()->getEntityManager();

Both failed, which led me to try and extend the Controller class with my custom class/service, and that died in a giant ball of fire.

解决方案

You need to inject the entity manager service into your custom service. Your service definition should look like this:

my.service.name:
  class:     my\class
  arguments: [ @doctrine.orm.default_entity_manager ]

Make sure that your service's __construct method takes the entity manager as an argument.

See the Service Container chapter for more info.

BTW, $this->getDoctrine() is a shortcut method that will only work in a class that extends Symfony\Bundle\FrameworkBundle\Controller\Controller

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