How to configure my buildForm for a OneToMany relationship? - symfony

Question

I'm trying to make a nested Form, embed a collection of forms inside a form.
i have problem with the buildForm.
I'm trying to add a formType in a other form type in my case to add educations to my CurriculumVitae form.
One CurriculumVitae has Many Educations.
Many Education have One CurriculumVitae.
im getting this error message:
Expected argument of type "array or (\Traversable and \ArrayAccess)",
"string" given
CurriculumVitae Entity:
/**
* CurriculumVitae
*
* #ORM\Table(name="curriculum_vitae")
* #ORM\Entity(repositoryClass="GE\CandidatBundle\Repository\CurriculumVitaeRepository")
*/
class CurriculumVitae
{
/**
* #ORM\OneToMany(targetEntity="GE\CandidatBundle\Entity\Education", mappedBy="curriculumVitae", cascade={"persist", "remove"})
* #ORM\Column(name="id_education")
*/
protected $educations;
/**
* Add education
*
* #param \GE\CandidatBundle\Entity\Education $education
*
* #return CurriculumVitae
*/
public function addEducation(\GE\CandidatBundle\Entity\Education $education)
{
$this->educations[] = $education;
$education->setCurriculumVitae($this);
return $this;
}
/**
* Remove education
*
* #param \GE\CandidatBundle\Entity\Education $education
*/
public function removeEducation(\GE\CandidatBundle\Entity\Education $education)
{
$this->educations->removeElement($education);
}
}
Education Entity:
/**
* Education
*
* #ORM\Table(name="education")
* #ORM\Entity(repositoryClass="GE\CandidatBundle\Repository\EducationRepository")
*/
class Education
{
...
/**
* Many Education have One CurriculumVitae.
* #ORM\ManyToOne(targetEntity="GE\CandidatBundle\Entity\CurriculumVitae", inversedBy="educations")
* #ORM\JoinColumn(name="curriculumVitae_id", referencedColumnName="id")
*/
private $curriculumVitae;
}
CurriculumVitaeType:
public function buildForm(FormBuilderInterface $builder, array $options)
{
$builder
->add('educations',
CollectionType::class, [
'entry_type' => EducationType::class,
'allow_add' => true,
'allow_delete' => true,
'prototype' => true,
'by_reference' => false,
'label' => 'Educations:'
]
)
;
}
CurriculumVitaeController:
class CurriculumVitaeController extends Controller
{
...
public function editAction(Request $request, CurriculumVitae $curriculumVitae)
{
$deleteForm = $this->createDeleteForm($curriculumVitae);
$editForm = $this->createForm('GE\CandidatBundle\Form\CurriculumVitaeType', $curriculumVitae);
$editForm->handleRequest($request);
if ($editForm->isSubmitted() && $editForm->isValid()) {
$this->getDoctrine()->getManager()->flush();
return $this->redirectToRoute('cv_edit', array('id' => $curriculumVitae->getId()));
}
return $this->render('curriculumvitae/edit.html.twig', array(
'curriculumVitae' => $curriculumVitae,
'edit_form' => $editForm->createView(),
'delete_form' => $deleteForm->createView(),
));
}
}
I don't know if it's a problem with the constructor or what?
In my CurriculumVitae Entity:
/**
* Constructor
*/
public function __construct()
{
$this->objectifs = new \Doctrine\Common\Collections\ArrayCollection();
$this->educations = new \Doctrine\Common\Collections\ArrayCollection();
$this->experiences = new \Doctrine\Common\Collections\ArrayCollection();
$this->formations = new \Doctrine\Common\Collections\ArrayCollection();
$this->competences = new \Doctrine\Common\Collections\ArrayCollection();
$this->dateAjout = new \Datetime();
$this->etat = false;
$this->disponibilite = false;
}
May be that the problem is here, when we need to nest a single form more than once i mean with which relationships?

Answer 1

Sorry,
I found my problem.
1) $candidatId should be $candidat. we are not storing ids in the entity but rather a reference to $candidat.
2) There is no column for education ids in CurriculumVitae. The relationship is stored in each individual Education entity.
3) There is no need to #ORM\Column(name="id_education").
and i added a JoinColumn to $idCurriculumVitae
/**
* #var CurriculumVitae
* #ORM\ManyToOne(targetEntity="GE\CandidatBundle\Entity\CurriculumVitae")
*#ORM\JoinColumn(name="curriculumVitae_id",referencedColumnName="id",onDelete="SET NULL")
*/
private $idCurriculumVitae;

Answer 2

I have a many to one related entities and every time I create a new CurriculumVitae entity which is related to Candidat entity the column candidat_id_id is null.
Only the entity CurriculumVitae is successfully created and persisted except the Candidat id in the data datatable.
CurriculumVitae table:
id | titre | candidat_id_id | id_education
candidat_id_id is: null
id_education has this value: Doctrine\Common\Collections\ArrayCollection#000000003d585f990000000052235238
Education table is empty
id | description | id_curriculum_vitae_id
My problem is with the id_curriculum_vitae_id and the id_education.