Symfony 2 combining multiple entities in one form - forms

Question

I have the following relations:
[entity]SesiuneUtilitati-|one_to_one|->[entity]UtilitatiElectricitateCoeficient-|one_to_many|->[entity]UtilitatiElectricitate
I want to create a form that includes all 3 entities
And the code:
<?php
namespace Mnv\CoreBundle\Entity;
use Doctrine\ORM\Mapping as ORM;
use Doctrine\Common\Collections\ArrayCollection;
/**
* UtilitatiElectricitateCoeficient
*
* #ORM\Table(name="utilitati_electricitate_coeficient")
* #ORM\Entity(repositoryClass="Mnv\CoreBundle\Entity\Repository\UtilitatiElectricitateCoeficientRepository")
* #ORM\HasLifecycleCallbacks()
*/
class UtilitatiElectricitateCoeficient
{
/**
* #var integer
*
* #ORM\Column(name="id", type="integer")
* #ORM\Id
* #ORM\GeneratedValue(strategy="AUTO")
*/
private $id;
/**
* #var decimal
*
* #ORM\Column(name="kwh", type="decimal", precision=20, scale=2, nullable=true)
*/
private $kwh;
/**
* #var decimal
*
* #ORM\Column(name="lei", type="decimal", precision=20, scale=2, nullable=true)
*/
private $lei;
/**
* #var decimal
*
* #ORM\Column(name="leikw", type="decimal", precision=20, scale=2, nullable=true)
*/
private $leikw;
/**
* #var decimal
*
* #ORM\Column(name="coeficient", type="decimal", precision=20, scale=2, nullable=true)
*/
private $coeficient;
/**
* #var string
*
* #ORM\Column(name="data_modificat", type="datetime", nullable=true)
*/
private $dataModificat;
/**
* #var string
*
* #ORM\Column(name="editat_de", type="string", length=50, nullable=true)
*/
private $editatDe;
/**
* #ORM\OneToOne(targetEntity="SesiuneUtilitati", inversedBy="utilitatiElectricitateCoeficient")
* #ORM\JoinColumn(name="id_sesiune", referencedColumnName="id_sesiune", onDelete="CASCADE")
*/
protected $sesiuneUtilitati;
/**
* #ORM\ManyToOne(targetEntity="Clienti", inversedBy="utilitatiElectricitateCoeficient")
* #ORM\JoinColumn(name="id_client", referencedColumnName="id_client")
*/
protected $clienti;
/**
* #ORM\OneToMany(targetEntity="UtilitatiElectricitate", mappedBy="utilitatiElectricitateCoeficient", cascade={"persist", "remove"}, orphanRemoval=true)
*/
private $utilitatiElectricitate;
public function __construct() {
$this->utilitatiElectricitate = new ArrayCollection();
}
...
}
<?php
namespace Mnv\CoreBundle\Entity;
use Doctrine\ORM\Mapping as ORM;
use Doctrine\Common\Collections\ArrayCollection;
/**
* UtilitatiElectricitate
*
* #ORM\Table(name="utilitati_electricitate")
* #ORM\Entity(repositoryClass="Mnv\CoreBundle\Entity\Repository\UtilitatiElectricitateRepository")
* #ORM\HasLifecycleCallbacks()
*/
class UtilitatiElectricitate
{
/**
* #var integer
*
* #ORM\Column(name="id", type="integer")
* #ORM\Id
* #ORM\GeneratedValue(strategy="AUTO")
*/
private $id;
/**
* #var decimal
*
* #ORM\Column(name="kwh", type="decimal", precision=20, scale=2, nullable=true)
*/
private $kwh;
/**
* #var decimal
*
* #ORM\Column(name="pret", type="decimal", precision=20, scale=2, nullable=true)
*/
private $pret;
/**
* #var decimal
*
* #ORM\Column(name="total", type="decimal", precision=20, scale=2, nullable=true)
*/
private $total;
/**
* #var string
*
* #ORM\Column(name="data_modificat", type="datetime", nullable=true)
*/
private $dataModificat;
/**
* #var string
*
* #ORM\Column(name="editat_de", type="string", length=50, nullable=true)
*/
private $editatDe;
/**
* #ORM\ManyToOne(targetEntity="UtilitatiElectricitateCoeficient", inversedBy="utilitatiElectricitate")
* #ORM\JoinColumn(name="id_coeficient", referencedColumnName="id")
*/
protected $utilitatiElectricitateCoeficient;
/**
* #ORM\ManyToOne(targetEntity="dateClienti", inversedBy="utilitatiElectricitate")
* #ORM\JoinColumn(name="id_contract", referencedColumnName="id")
*/
protected $dateClienti;
...
}
<?php
namespace Mnv\CoreBundle\Form;
use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\FormBuilderInterface;
use Symfony\Component\OptionsResolver\OptionsResolverInterface;
class UtilitatiElectricitateCoeficientType extends AbstractType
{
public function buildForm(FormBuilderInterface $builder, array $options)
{
$builder->add('lei','text', array('required' => false));
$builder->add('coeficient','text', array('required' => false));
$builder->add('kwh','text', array('required' => false));
$builder->add('leikw','text', array('required' => false));
$builder->add('utilitatiElectricitate', 'collection', array(
'type' => new UtilitatiElectricitateType(),
'allow_add' => true,
'prototype' => false,
'by_reference' => false
));
}
public function setDefaultOptions(OptionsResolverInterface $resolver)
{
$resolver->setDefaults(array(
'data_class' => 'Mnv\CoreBundle\Entity\UtilitatiElectricitateCoeficient',
'cascade_validation' => true,
));
}
public function getName()
{
return 'utilitati_electricitate_coeficient';
}
}
<?php
namespace Mnv\CoreBundle\Form;
use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\FormBuilderInterface;
use Symfony\Component\OptionsResolver\OptionsResolverInterface;
class UtilitatiElectricitateType extends AbstractType
{
public function buildForm(FormBuilderInterface $builder, array $options)
{
$builder->add('kwh','text', array('required' => false));
$builder->add('pret','text', array('required' => false));
$builder->add('total','text', array('required' => false));
}
public function setDefaultOptions(OptionsResolverInterface $resolver)
{
$resolver->setDefaults(array(
'data_class' => 'Mnv\CoreBundle\Entity\UtilitatiElectricitate',
'cascade_validation' => true,
));
}
public function getName()
{
return 'utilitati_electricitate';
}
}
public function indexAction(Request $request, $idSocietate)
{
$societate = $this->getSocietate($idSocietate);
$clienti = $this->getClienti($idSocietate);
$sesiuneUtilitati = new SesiuneUtilitati();
$dateClienti = new DateClienti();
$utilitatiElectricitateCoeficient = new UtilitatiElectricitateCoeficient();
$utilitatiElectricitate = new UtilitatiElectricitate();
$utilitatiElectricitateCoeficient->getUtilitatiElectricitate()->add($utilitatiElectricitate);
...
$form = $this->createForm(new SesiuneUtilitatiType(), $sesiuneUtilitati);
$request = $this->get('request');
if ($request->getMethod() == 'POST') {
$form->bind($request);
if ($form->isValid()) {
// Persist objects to database
$usr = $this->get('security.context')->getToken()->getUser();
$now = new \DateTime();
$date = $now->format("d-m-Y");
$dt = explode('-', $date);
$em = $this->getDoctrine()->getManager();
$sesiuneUtilitati->setSocietati($societate);
$sesiuneUtilitati->setAdaugataDe($usr->getUsername());
$sesiuneUtilitati->setZiua($dt[0]);
$sesiuneUtilitati->setLuna($dt[1]);
$sesiuneUtilitati->setAnul($dt[2]);
$em->persist($sesiuneUtilitati);
$em->flush();
$this->get('session')->getFlashBag()->set('tabel-util-notice', 'Datele au fost salvate cu succes.');
// Redirect - This is important to prevent users re-posting
// the form if they refresh the page
return $this->redirect($this->generateUrl('tabel_utilitati',array('idSocietate' => $idSocietate)));
}
}
return $this->render('MnvCoreBundle:Page:utilitati.html.twig', array(
'societate' => $societate,
'form' => $form->createView(),
'clienti' => $clienti,
));
}
What am i doing wrong here? The fields for the collection field utilitatiElectricitate are not available in twig.
For example if i try form.utilitatiElectricitateCoeficient.utilitatiElectricitate[0].kwh i get an error with key 0 does not exist.
SesiuneUtilitatiType is created to include all other forms like this:
<?php
namespace Mnv\CoreBundle\Form;
use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\FormBuilderInterface;
use Symfony\Component\OptionsResolver\OptionsResolverInterface;
class SesiuneUtilitatiType extends AbstractType
{
public function buildForm(FormBuilderInterface $builder, array $options)
{
$builder->add('utilitatiTotal', new UtilitatiTotalType());
$builder->add('utilitatiElectricitateCoeficient', new UtilitatiElectricitateCoeficientType());
.
.
.
$builder->add('Salveaza datele si genereaza facturi', 'submit');
}
public function setDefaultOptions(OptionsResolverInterface $resolver)
{
$resolver->setDefaults(array(
'data_class' => 'Mnv\CoreBundle\Entity\SesiuneUtilitati',
'cascade_validation' => true,
));
}
public function getName()
{
return 'sesiune_utilitati';
}
}
And UtilitatiElectricitateCoeficientType:
<?php
namespace Mnv\CoreBundle\Form;
use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\FormBuilderInterface;
use Symfony\Component\OptionsResolver\OptionsResolverInterface;
class UtilitatiElectricitateCoeficientType extends AbstractType
{
public function buildForm(FormBuilderInterface $builder, array $options)
{
$builder->add('lei','text', array('required' => false));
$builder->add('coeficient','text', array('required' => false));
$builder->add('kwh','text', array('required' => false));
$builder->add('leikw','text', array('required' => false));
$builder->add('utilitatiElectricitate', 'collection', array(
'type' => new UtilitatiElectricitateType(),
'allow_add' => true,
'prototype' => true,
'by_reference' => false
));
}
public function setDefaultOptions(OptionsResolverInterface $resolver)
{
$resolver->setDefaults(array(
'data_class' => 'Mnv\CoreBundle\Entity\UtilitatiElectricitateCoeficient',
'cascade_validation' => true,
));
}
public function getName()
{
return 'utilitati_electricitate_coeficient';
}
}
And UtilitatiElectricitateType:
<?php
namespace Mnv\CoreBundle\Form;
use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\FormBuilderInterface;
use Symfony\Component\OptionsResolver\OptionsResolverInterface;
class UtilitatiElectricitateType extends AbstractType
{
public function buildForm(FormBuilderInterface $builder, array $options)
{
$builder->add('kwh','text', array('required' => false));
$builder->add('pret','text', array('required' => false));
$builder->add('total','text', array('required' => false));
}
public function setDefaultOptions(OptionsResolverInterface $resolver)
{
$resolver->setDefaults(array(
'data_class' => 'Mnv\CoreBundle\Entity\UtilitatiElectricitate',
'cascade_validation' => true,
));
}
public function getName()
{
return 'utilitati_electricitate';
}
}

Answer 1

You have to create a SesiuneUtilitatiType which you will embed into the UtilitatiElectricitateCoeficientType, now this last one will be embedded into UtilitatiElectricitateType. You should read the docs for embedded forms to have a clear view of what rules to follow