Embedding a single object in form - php

Question

I've manage to create a form embedded in another form but I think I'm not doing something right. Here's my code
Category
class Category
{
private $id;
private $name;
/**
* #ORM\OneToMany(targetEntity="Category", mappedBy="category")
*/
private $subcategorues;
public function __construct()
{
$this->subcategorues = new \Doctrine\Common\Collections\ArrayCollection();
}
public function getId()
{
return $this->id;
}
public function setName($name)
{
$this->name = $name;
return $this;
}
public function getName()
{
return $this->name;
}
public function addSubcategorue(\AppBundle\Entity\Category $subcategorues)
{
$this->subcategorues[] = $subcategorues;
return $this;
}
public function removeSubcategorue(\AppBundle\Entity\Category $subcategorues)
{
$this->subcategorues->removeElement($subcategorues);
}
public function getSubcategorues()
{
return $this->subcategorues;
}
}
Subcategory
class Subcategory
{
private $id;
private $name;
/**
* #ORM\ManyToOne(targetEntity="Category", inversedBy="subcategories")
* #ORM\JoinColumn(name="category_id", referencedColumnName="id")
*/
private $category;
/**
* #return mixed
*/
public function getCategory()
{
return $this->category;
}
/**
* #param mixed $category
*/
public function setCategory($category)
{
$this->category = $category;
}
/**
* Get id
*
* #return integer
*/
public function getId()
{
return $this->id;
}
public function setName($name)
{
$this->name = $name;
return $this;
}
public function getName()
{
return $this->name;
}
}
CategoryType
.......
public function buildForm(FormBuilderInterface $builder, array $options)
{
$builder
->add('name', 'entity', [
'class' => 'AppBundle\Entity\Category',
'choice_label' => 'name'
]);
}
public function configureOptions(OptionsResolver $resolver)
{
$resolver->setDefaults([
'data_class' => 'AppBundle\Entity\Category'
]);
}
......
SubcategoryType
$builder
->add('category', new CategoryType(), [
'label' => false
])
->add('name', 'text')
->add('save', 'submit')
;
public function configureOptions(OptionsResolver $resolver)
{
$resolver->setDefaults([
'data_class' => 'AppBundle\Entity\Subcategory'
]);
}
DefaultController
public function indexAction(Request $request)
{
$subcategory = new Subcategory();
$form = $this->createForm(new SubcategoryType(), $subcategory);
$form->handleRequest($request);
if($form->isValid()){
$em = $this->getDoctrine()->getManager();
$subcategory->setCategory($subcategory->getCategory()->getName());
$em->persist($subcategory);
$em->flush();
return new Response(sprintf('ID %d', $subcategory->getId()));
}
return $this->render('AppBundle::layout.html.twig', [
'form' => $form->createView(),
]);
}
Please notice this line of code $subcategory->setCategory($subcategory->getCategory()->getName());
I need that line in order to save the entity to the database otherwise I get an error. So my question is is there a way to skip this line of code and pass category object on the fly to subcategory->category property instead of doing that manually?
//EDIT
Here's the output of dump($form->getData());
DefaultController.php on line 33:
Subcategory {#467 ▼
-id: null
-name: "Uncharted"
-category: Category {#588 ▼
-id: null
-name: Category {#685 ▼
-id: 2
-name: "Games"
-subcategorues: PersistentCollection {#686 ▶}
}
-subcategorues: ArrayCollection {#660 ▶}
}
}

Answer 1

Your CategoryType is not correctly mapped compared to your Category entity. Actually, in your case, you don't need to have a sub-form CategoryType with a name field, since you have a category field in SubCategory which is a relationship towards Category.
Just replace:
->add('category', new CategoryType(), [
'label' => false
])
by:
->add('category', 'entity', [
'class' => 'AppBundle\Entity\Category',
'choice_label' => 'name'
]);

Answer 2

Could your try smth like this (for Category entity class):
public function addSubcategorue(\AppBundle\Entity\Category $subcategorues)
{
if ($this->subcategorues->contains($subcategorues)) {
$this->subcategorues->add($subcategorues);
$subcategorues->setCategory($this);
}
return $this;
}