Why did Symfony forms does not using validator normally? - php

Question

I have the collection model:
class EntityList {
/**
* #var Entity[]
* #Assert\Count(min=1)
* #Assert\Valid()
*/
private $entityList;
// ...
}
The single model:
class Entity {
/**
* #var int
* #Assert\NotBlank()
*/
private $id;
/**
* #var string
* #Assert\NotBlank()
*/
private $name;
// ...
}
The collection's form:
class EntityListType extends AbstractType {
public function buildForm(FormBuilderInterface $builder, array $options) {
$builder->add('entity', CollectionType::class, [
'entry_type' => EntityType::class,
'allow_add' => true,
'property_path' => 'entityList',
]);
}
public function configureOptions(OptionsResolver $resolver) {
$resolver->setDefault('data_class', EntityList::class);
}
public function getBlockPrefix() {
return null;
}
}
And the entity's form:
class EntityType extends AbstractType {
public function buildForm(FormBuilderInterface $builder, array $options) {
$builder
->add('id', NumberType::class)
->add('name', TextType::class)
;
}
public function configureOptions(OptionsResolver $resolver) {
$resolver->setDefault('data_class', Entity::class);
}
}
The collection's form using in a controller:
$form = $this->createForm(EntityListType::class);
$form->handleRequest($request);
I send the package with no required title (it's an API):
curl -X POST ...
-d entity[0][id]=10
And that accept it! The method isValid returns true. But if form's data check manually with ValidationComponent as:
if ($form->isValid()) { // it's valid, okay
echo $this->get('validator')->validate($form->getData()); // it's still not valid!
}
I see correct errors ('title is required')! Why?
P.S. Symfony 3.2, stable.
P.P.S. I was found temporarily solution now. It's use $form->submit($request->request->all()); instead of $form->handleRequest($request);. But I don't understand this feature.