Symfony 3 Constraint validation Date or Datetime - symfony

Question

I try to validate a date (or a datetime) with the validation of a form into Symfony (3.2).
I'm using FOSRestBundle to use the json from request (because i try to develop my personnal API)
But i've try a lot of format:
2017-04-09
17-04-09
for datetime:
2017-04-09 21:12:12
2017-04-09T21:12:12
2017-04-09T21:12:12+01:00
...
But the form is not valid and i get always this error:
This value is not valid
The function of my controller
public function postPlacesAction(Request $request) {
$place = new Place();
$form = $this->createForm(PlaceType::class, $place);
$form->handleRequest($request);
if ($form->isValid()) {
return $this->handleView($this->view(null, Response::HTTP_CREATED));
} else {
return $this->handleView($this->view($form->getErrors(), Response::HTTP_BAD_REQUEST));
}
}
My entity
class Place
{
/**
* #var string
*
* #Assert\NotBlank(message = "The name should not be blank.")
*/
protected $name;
/**
* #var string
*
* #Assert\NotBlank(message = "The address should not be blank.")
*/
protected $address;
/**
* #var date
*
* #Assert\Date()
*/
protected $created;
// ....
// Getter and setter of all var
My entity type
class PlaceType extends AbstractType
{
public function buildForm(FormBuilderInterface $builder, array $options)
{
$builder->add('name');
$builder->add('address');
$builder->add('created');
}
public function configureOptions(OptionsResolver $resolver)
{
$resolver->setDefaults([
'data_class' => 'MyBundle\Entity\Place',
'csrf_protection' => false
]);
}
}
An example of request (i'm using Postman)
Method: POST
Header: application/json
Body (raw):
{"place":{"name":"name","address":"an address","created":"1997-12-12"}}
I'm not sure that i use the right format, or if i missing anything in my files :/
Could you please switch on the light in my mind!?! :)
Thanks so much for your help.
Fabrice

Answer 1

The problem at created field in your form type. When you add created field using $builder->add('created'); syntax, the default type Symfony\Component\Form\Extension\Core\Type\TextType will be applied and 1997-12-12 input data is a string, not a DateTime instance.
To fix this issue, you should pass DateType in second argument: $builder->add('created', 'Symfony\Component\Form\Extension\Core\Type\DateType');. This form type has a transformer which will transform the input data 1997-12-12 into a DateTime instance.
For more informations about Symfony's form types, have a look at Form Types Reference