Symfony 2: Creating a service from a Repository

Question

I'm learning Symfony and I've been trying to create a service, using a repository. I've created my repositories and entities from generate:entity, so they should be fine.

So far what I got in my services.yml is:

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%

But when I try to call the service, I get this error:

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

Then I tried to create the service just using an entity. My services.yml would look like:

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

But for this, I get:

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

Does anybody know what am I doing wrong?

Thanks

Answer 1

DEPRECATION WARNING: No more factory_service and factory_method. This is how you should do it since Symfony 2.6 (for Symfony 3.3+ check below):

parameters:
    entity.my_entity: "AppBundle:MyEntity"

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

The new setFactory() method was introduced in Symfony 2.6. Refer to older versions for the syntax for factories prior to 2.6.

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

EDIT: Looks like they keep changing this, so since Symfony 3.3 there's a new syntax:

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

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

Check it out: http://symfony.com/doc/3.3/service_container/factories.html

Answer 2

Here is how we did it in KnpRadBundle: https://github.com/KnpLabs/KnpRadBundle/blob/develop/DependencyInjection/Definition/DoctrineRepositoryFactory.php#L9

Finally it should be:

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

UPDATE

Since 2.4, doctrine allows to override the default repositor factory.

Here is a possible way to implement it in symfony: https://gist.github.com/docteurklein/9778800