Doctrine2 + Zend Framework 2 - EntitiesManager as variable in Controller - doctrine-orm

Question

I want to set EntitiesManager instance available on my Controller. I want the Instance available with $this->em on Controller. This is my configuration :
module.config.php
[...]
'doctrine' => array(
'driver' => array(
'application_entities' => array(
'class' =>'Doctrine\ORM\Mapping\Driver\AnnotationDriver',
'cache' => 'array',
'paths' => array(__DIR__ . '/../src/Application/Entity')
),
'orm_default' => array(
'drivers' => array(
'Application\Entity' => 'application_entities'
),
),
),
),
'di' => array(
'instance' => array(
'alias' => array(
'application' => 'Application\Controller\IndexController',
),
'Application\Controller\IndexController' => array(
'parameters' => array(
'em' => 'doctrine_em',
),
),
),
),
IndexController.php
namespace Application\Controller;
use Zend\Mvc\Controller\AbstractActionController;
use Zend\View\Model\ViewModel;
use \Doctrine\ORM\EntityManager;
class IndexController extends AbstractActionController
{
protected $em;
public function setEm(EntityManager $em) {
$this->em = $em;
return $this;
}
public function indexAction() {
$user1 = $this->em->find('\Application\Entity\User', 1);
var_dump($user1->getFullname());
}
I got this error : "Fatal error: Call to a member function find() on a non-object". It seem than EntityManager is not correctly instantiate.
What Am I missing?
Thank you!

Answer 1

You dont need anything in the module config
You edit the Module.php, onbootstrap function
public function onBootstrap(\Zend\EventManager\EventInterface $e) {
$serviceManager = $e->getApplication()->getServiceManager();
$em = $serviceManager;
$controllerLoader = $serviceManager->get('ControllerLoader');
$controllerLoader->addInitializer(function ($controller) use ($em) {
if (method_exists($controller, 'setEm')) {
$controller->setEm($em);
}
});
}
the controller stays as you have it, with the $em field, and the setEm method
//..
protected $em;
public function setEm(EntityManager $em) {
$this->em = $em;
return $this;
}
//..