How to configure dependency injection for repository class in symfony 3

Question

Symfony generator generated the following class of repository:

namespace AppBundle\\Repository;
use AppBundle\\Entity\\GroupEntity;

/**
 * GroupEntityReposi         


        

Answer 1

Recommended as of Symfony 3.3:

As of Symfony 3.3 it is recommended to use the actual class name as service id (read this and this).

AppBundle\Repository\GroupEntityRepository:
    factory: 'Doctrine\ORM\EntityManagerInterface:getRepository'
    arguments:
        - AppBundle\Entity\GroupEntity

Original answer:

You can configure your repository service like this:

group_entity_repository:
    class: AppBundle\Repository\GroupEntityRepository
    factory: ["@doctrine.orm.entity_manager", getRepository]
    arguments:
        - AppBundle\Entity\GroupEntity

You will probably never want to invoke the repository constructor yourself. Therefore this approach just uses the entity_manager to get the repository. The service container bascially uses this code to get the repository:

$container->get('doctrine.orm.entity_manager')->getRepository('AppBundle\Entity\GroupEntity');