CODEWITHSUNDEEP
phpsymfonydoctrinedoctrine-orm
Xardas
Xardas

Reputation: 1855

Calling Doctrine from custom class

/Edited/

I have this class:

namespace Baza\BlogBundle\Form;   
use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\FormBuilderInterface;
use Doctrine\ORM\EntityManager; 

class filterType extends AbstractType
{

  protected $em;
  public function __construct(EntityManager $em)
 {
     $this->em = $em;
 }
public function buildForm(FormBuilderInterface $builder, array $options)
{

   $this->$em->getDoctrine()->getEntityManager();

   /****
   ****/

 }
}

And this is my services yml:

services:
 filterType:
    class: Baza\BlogBundle\Form\filterType
    arguments: [doctrine.orm.entity_manager]

When I run the code I get following exception:

Catchable Fatal Error: Argument 1 passed to Baza\BlogBundle\Form\filterType::__construct() must be an instance of Doctrine\ORM\EntityManager, none given

I'm all out of ideas.

Upvotes: 1

Views: 6711

Answers (2)

flu
flu

Reputation: 14703

I created the FormType myself. This should work:

<?php
// Baza\BlogBundle\Form\filterType.php

namespace Baza\BlogBundle\Form;  

use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\FormBuilderInterface;
use Doctrine\ORM\EntityManager;

class filterType extends AbstractType
{
  protected $em;

  public function __construct(EntityManager $em)
  {
     $this->em = $em;
  }

  public function buildForm(FormBuilderInterface $builder, array $options)
  {
    // Do something with your Entity Manager using "$this->em"
  }

  public function getName()
  {
      return 'filter_type';
  }
}

In your Controller use something like

<?php
// Baza\BlogBundle\Controller\PageController.php

namespace Baza\BlogBundle\Controller;
use Baza\BlogBundle\Form\filterType;
use Symfony\Bundle\FrameworkBundle\Controller\Controller;

class BaseController extends Controller
{
     public function testEntityManager()
     {
         // assign whatever you need
         $enquiry = null;
         // getEntityManager() is depricated. Use getManager() instead.
         $em = $this->getDoctrine()->getManager();

         $this->createForm(
             new filterType($em),
             $enquiry
         );
     } 
}

Never forget to include/use all the classes you are using. Otherwise PHP will assume the class is inside your currently used namespace.

That's why you got the error (on Cerad's post)

Catchable Fatal Error: Argument 1 passed to
Baza\BlogBundle\Form\filterType::__construct()
must be an instance of Baza\BlogBundle\Form\EntityManager [...]

As you didn't include the EntityManager PHP assumes it's a class inside your current namespace which was Baza\BlogBundle\Form.

The funny looking Class EntityManager50ecb6f979a07_546a8d27f194334ee012bfe64f629947b07e4919\__CG__\Doctrin‌​e\ORM\EntityManager is a Doctrine2 proxy class.

Since Symfony 2.1, calling $this->getDoctrine()->getEntityManager() no lonoger results in a Doctrine\ORM\EntityManager but a proxy class which in fact behaves just like the original EntityManager and can be passed without problems.

Upvotes: 3

Cerad
Cerad

Reputation: 48893

The @ symbol is needed to indicate that the argument is a service. However, as you found out, @ trips up the yaml parser. The solution is to use quotes.

services:
    filterType:
        class: Baza\BlogBundle\Form\filterType
        arguments: ['@doctrine.orm.entity_manager']

I remember it taking me a few hours to figure this out as well.

Upvotes: 1

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