Create a table form from Doctrine entities - forms

Question

I have a list of Doctrine entities (called "Circuit") and would like to generate a form listing them within a <table> and add a way to tick them for mass deletion (kind of what Sonata Admin does, without the need for an admin class).
I've looked everywhere but I can't figure out for the life of me what to do. There is just one layer to this class (plain old object), and every time I try to add a collection type to my form builder I get the following error:
Neither the property "circuits" nor one of the methods "getCircuits()", "circuits()", "isCircuits()", "hasCircuits()", "__get()", "__call()" exist and have public access in class "NetDev\CoreBundle\Entity\Circuit".
Am I supposed to create a "proxy" class to create a collection of circuits ? Did I miss something ?
All the howtos I found so far are using a "master" class like "Article" and a collection of child classes like "Categories" which doesn't apply to my present issue.
Here is my CircuitsController.php (I use the "addAction" for the tests, eventually everything will be located in indexAction):
<?php
namespace NetDev\WebManagerBundle\Controller;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Bundle\FrameworkBundle\Controller\Controller;
use NetDev\CoreBundle\Form\CircuitType;
use NetDev\CoreBundle\Entity\Circuit;
class CircuitsController extends Controller {
public function indexAction($page = 1) {
$listCircuits = $this->getDoctrine()->getManager()->getRepository('NetDevCoreBundle:Circuit')->findAll();
$content = $this->get('templating')->render('NetDevWebManagerBundle:Circuits:index.html.twig',
array('listCircuits' => $listCircuits));
return new Response($content);
}
public function addAction(Request $request) {
$circuit = new Circuit();
$form = $this->createForm(new CircuitType(), $circuit);
if ($request->isMethod('POST') && $form->handleRequest($request)->isValid()) {
/* some action that is not actually relevant */
}
return new Response($this->get('templating')->render('NetDevWebManagerBundle:Circuits:add.html.twig',
array('circuit' => $circuit,
'form' => $form->createView())));
}
The CircuitType.php file:
<?php
namespace NetDev\CoreBundle\Form;
use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\FormBuilderInterface;
use Symfony\Component\OptionsResolver\OptionsResolverInterface;
class CircuitType extends AbstractType
{
/**
* #param FormBuilderInterface $builder
* #param array $options
*/
public function buildForm(FormBuilderInterface $builder, array $options)
{
$builder
->add('circuits', 'collection', array('type' => 'entity', 'allow_add' => true,
'allow_delete' => true, 'by_reference' => false,
'label' => false,
'options' => array('class' => 'NetDevCoreBundle:Circuit',
'label' => false, 'multiple' => true,
'expanded' => true)
))
/* ->add('vlanId', 'integer', array('required' => true, 'label' => 'VLAN ID')) */
/* ->add('popOut', 'text', array('required' => true, 'label' => 'Injecting PoP', */
/* 'max_length' => 3)) */
/* ->add('popsIn', 'textarea', array('required' => true, 'label' => 'Listening PoP')) */
/* ->add('bandwidth', 'integer', array('label' => 'Bandwidth')) */
/* ->add('xconnectId', 'text', array('label' => 'Cross-connect ID')) */
/* ->add('Create', 'submit') */
;
}
/**
* #return string
*/
public function getName()
{
return 'netdev_corebundle_circuit';
}
}
And finally, the Circuit.php entity file:
<?php
namespace NetDev\CoreBundle\Entity;
use Doctrine\ORM\Mapping as ORM;
use Symfony\Component\Validator\Constraints as Assert;
/**
* Circuit
*
* #ORM\Table()
* #ORM\Entity(repositoryClass="NetDev\CoreBundle\Entity\CircuitRepository")
*/
class Circuit
{
/**
* #var integer
*
* #ORM\Column(name="id", type="integer")
* #ORM\Id
* #ORM\GeneratedValue(strategy="AUTO")
*/
private $id;
/**
* #var integer
*
* #ORM\Column(name="vlan_id", type="integer")
* #Assert\Type(type="int")
* #Assert\Range(min="1", max="4096")
*/
private $vlanId;
/**
* #var array
*
* #ORM\Column(name="pop_out", type="array")
* #Assert\NotBlank()
* #Assert\Length(max=3)
*/
private $popOut;
/**
* #var array
*
* #ORM\Column(name="pops_in", type="array")
* #Assert\NotBlank()
*/
private $popsIn;
/**
* #var integer
*
* #ORM\Column(name="bandwidth", type="integer")
* #Assert\Type(type="int")
*/
private $bandwidth;
/**
* #var string
*
* #ORM\Column(name="xconnect_id", type="string", length=255)
* #Assert\NotBlank()
* #Assert\Length(max="255")
*/
private $xconnectId;
/* Getters and Setters stripped for clarity's sake */
public function __toString() {
return "{$this->vlanId}-{$this->popOut}";
}
}
If you need the twig template tell me, I haven't added it because I am not even close to having something outputted aside from that Exception.

Answer 1

As said by #Cerad, the answer here was to pass the result of
$listCircuits = $this->getDoctrine()->getManager()->getRepository('NetDevCoreBundle:Circuit')->findAll();
directly to the collection. Everything worked nicely afterwards.