Symfony 2:从存储库创建服务

Question

我正在学习Symfony,我一直在尝试使用存储库创建服务.我已经从generate:entity创建了我的存储库和实体,所以它们应该没问题.

到目前为止,我在services.yml中得到的是:

parameters:
    mytest.entity: TestTestBundle:Brand
    mytest.class:  Test\TestBundle\Entity\Brand
    default_repository.class: Doctrine\ORM\EntityRepository

services:
     myservice:
          class: %default_repository.class%
          factory-service: doctrine.orm.default_entity_manager
          factory-method: getRepository
          arguments:
            - %mytest.entity%

但是当我尝试调用该服务时,我收到此错误:

Catchable Fatal Error: Argument 2 passed to Doctrine\ORM\EntityRepository::__construct() must be an instance of Doctrine\ORM\Mapping\ClassMetadata, none given, called in 

然后我尝试使用实体创建服务.我的services.yml看起来像:

services:
     myservice:
          class: %mytest.class%
          factory-service: doctrine.orm.default_entity_manager
          factory-method: getRepository
          arguments:
            - %mytest.entity%

但为此,我得到:

Error: Call to undefined method 
                Test\TestBundle\Entity\Brand::findAll

有人知道我做错了什么吗？

谢谢

Answer 1

弃权警告:不再factory_service和factory_method.这是你应该怎么做的,因为Symfony 2.6(下面的Symfony 3.3+检查):

parameters:
    entity.my_entity: "AppBundle:MyEntity"

services:
    my_entity_repository:
        class: AppBundle\Repository\MyEntityRepository
        factory: ["@doctrine", getRepository]
        arguments:
            - %entity.my_entity%

新的setFactory()方法是在Symfony 2.6中引入的.有关2.6之前的工厂的语法,请参阅旧版本.

http://symfony.com/doc/2.7/service_container/factories.html

编辑:看起来他们一直在改变这个,所以从Symfony 3.3开始就有了新的语法:

# app/config/services.yml
services:
    # ...

    AppBundle\Email\NewsletterManager:
        # call the static method
        factory: ['AppBundle\Email\NewsletterManagerStaticFactory', createNewsletterManager]

请查看:http://symfony.com/doc/3.3/service_container/factories.html

Answer 2

以下是我们在KnpRadBundle中的使用方法:https://github.com/KnpLabs/KnpRadBundle/blob/develop/DependencyInjection/Definition/DoctrineRepositoryFactory.php#L9

最后它应该是:

my_service:
    class: Doctrine\Common\Persistence\ObjectRepository
    factory_service: doctrine # this is an instance of Registry
    factory_method: getRepository
    arguments: [ %mytest.entity% ]

UPDATE

从2.4开始,doctrine允许覆盖默认的repositor工厂.

以下是在symfony中实现它的可能方法:https://gist.github.com/docteurklein/9778800

Answer 3

您可能使用了错误的YAML-Keys.你的第一个配置对我来说很好用

• factory_service而不是工厂服务
• factory_method而不是工厂方法