Symfony2, Doctrine, getDoctrine() without __construct() method - symfony

Question

We have service as
services:
service_name:
class: One\SomeBundle\Controller\OurController
What need we add, to make $this->getDoctrine() works in our "OurController" ?
I tried in "OurController"
$this->countainer->get('doctrine')
// and
$this->getDoctrine()
but nothing happens, just errors.
I want that this controller use native methods such as $this->getDoctrine(). As I know we can give arguments to controller(arguments in services.yml), and then apply it, but can we set it as default? Without
function __construct($em)
{
$this->em = $em;
}
and other additional stuff. All i need is to make $this->getDocrine() works.

Answer 1

i think the doctrine is avaiable in all controllers like this
$em = $this->getDoctrine()->getEntityManager();
if you want the doctrine available in your service then use something like this
services:
your.service:
class: YourVendor\YourBundle\Service\YourService
arguments: [ #doctrine.orm.entity_manager ]

Answer 2

When you define a service, you have to pass parameters as arguments as follow (since a service doesn't have access to the main container by default):
<services>
<service id="myservice" class="path/to/my/class">
<argument type="service" id="doctrine" />
...
</service>
</services>
This is configured in xml but I'll let you convert it in yml if you like.
Then in your service class you just need to set your constructor as so:
class MyServiceClass
{
protected $doctrine;
public function __construct(\Doctrine $doctrine, ...)
{
$this->doctrine = $doctrine;
....
}
}
Now the doctrine service will be available in your own service Class.

Answer 3

And your can usage JMSDiExtra for set services to properties in Controller:
Controller code:
<?php
namespace Acme\DemoBundle\Controller;
use Symfony\Bundle\FrameworkBundle\Controller\Controller;
use JMS\DiExtraBundle\Annotation as DI;
/**
* Controller class
*/
class MyController extends Controller
{
/**
* #DI\Inject
*/
protected $request;
/**
* #DI\Inject("doctrine.orm.entity_manager")
*/
protected $em;
// .....
/**
* Action
*/
public function myAction()
{
// ....
$this->em->persist($myObject);
// ....
}
}
More documentation with JMSDiExtra - http://jmsyst.com/bundles/JMSDiExtraBundle
This bundle is a default in Symfony2 Framework