Symfony2 Use Doctrine in Service Container

Question

How do I use Doctrine in a service container?

The Code just causes an error message "Fatal error: Call to undefined method ...::get()".

<?php  namespace ...\Service;  use Doctrine\ORM\EntityManager; use ...\Entity\Header;  class dsdsf {      protected $em;      public function __construct(EntityManager $em)     {         $this->em = $em;     }      public function create()     {         $id = 10;         $em = $this->get('doctrine')->getEntityManager();         $em->getRepository('...')->find($id);     } } 

services.yml

service:     site:         class: ...\Service\Site 

Answer 1

According to your code, you already have an EntityManager injected. You don't need to call $em = $this->get('doctrine')->getEntityManager() — just use $this->em.

If you don't inject an EntityManager already, read this.

UPDATE:

You need to make the container inject an EntityManager into your service. Here's an example of doing it in config.yml:

services:     your.service:         class: YourVendor\YourBundle\Service\YourService         arguments: [ @doctrine.orm.entity_manager ] 

I prefer to define bundles' services in their own services.yml files, but that's a bit more advanced, so using config.yml is good enough to get started.

Answer 2

For easily accessing the Entitymanager use the following one:

//services.yml   your service here:     class: yourclasshere     arguments: [@doctrine.orm.entity_manager] 

And in the class itself:

class foo {   protected $em;      public function __construct(\Doctrine\ORM\EntityManager $em)   {     $this->em = $em;   }    public function bar()   {       //Do the Database stuff       $query = $this->em->createQueryBuilder();        //Your Query goes here        $result = $query->getResult();   } } 

This is my first answer so any comments are appreciated :)