ZF2 + Doctrine2 Annotation Form Required & AllowEmpty - zend-framework2

Question

I use Annotation in a Doctrine Entity Class. Annotation for a field are :
/**
* #var integer
*
* #ORM\Column(name="duree", type="integer", nullable=true)
*
* #Form\Type("Zend\Form\Element\Number")
* #Form\Attributes({"required":false, "placeholder":"Durée", "min":"1", "max":"20"})
* #Form\Required(false)
* #Form\AllowEmpty()
* #Form\Options({"label":"Durée :"})
* #Form\Filter({"name": "Int"})
* #Form\Validator({"name":"IsInt"})
*/
private $duree;
So the DB column can be Empty (nullable), and in the form i wan't the same (ie user can leave input empty). I've both annotation Required(false) and allowEmpty, but the form never valid (always got isEmpty for this field).
If i set #Form\Type to "Text", it is working fine (form is valid event if input is empty). But with the class Number, it'is not the same.
I've the same pb with a Select element (correspondinf to a relationship). Annotations are :
/**
* #var \Application\Entity\CcCategorie
*
* #ORM\ManyToOne(targetEntity="Application\Entity\CcCategorie")
* #ORM\JoinColumns({
* #ORM\JoinColumn(name="categorie", referencedColumnName="id", nullable=true, onDelete="SET NULL")
* })
*
* #Form\Type("DoctrineModule\Form\Element\ObjectSelect")
* #Form\Attributes({"type":"select", "required":false})
* #Form\Options({"label":"Catégorie :"})
* #Form\Required(false)
* #Form\AllowEmpty()
* #Form\Options({
* "label":"Catégorie :",
* "empty_option": "---",
* "target_class": "Application\Entity\CcCategorie",
* "property": "label"
* })
*/
private $categorie;
But, with this the field has error (isEmpty) if the Select is set to empty option when validating Form.
The only workaround i've found is to set the annotation
* #Form\Type("\Application\Form\Entity\CcRepriseFieldset")
at the top of the entity class. The class CcRepriseFieldset extend Fieldset, and implement InputFilterProviderInterface. Then i specify the function in this class :
public function getInputFilterSpecification()
{
return array(
array(
"name" => "duree",
'required' => false,
'allow_empty' => true,
),
array(
"name" => "categorie",
'required' => false,
'allow_empty' => true,
),
);
}
With this it works... But it's not annotations.
I don't understand why annotation not work
thanks

Answer 1

Ok i found what is the probleme.
Annotation Builder made a array with all fields spec, like this :
array (size=7)
'name' => string 'reprise' (length=7)
'attributes' => array (size=0)
'elements' =>
array (size=8)
1 =>array (size=2)
...
'fieldsets' => array (size=0) empty
'type' => string '\Application\Form\Entity\CcRepriseFieldset'
(length=42)
'input_filter' =>
array (size=8)
'name' =>
array (size=4)
'name' => string 'name' (length=4)
'required' => boolean true
'filters' =>
array (size=3)
...
'validators' =>
array (size=2)
...
But this array is the Array for the FieldSet attached to the Entity.
So the Zend\Form\Factory never parse this because 'input_filter' are only parse for ZendForm Element not for fieldset (of course because Fieldset doesn't have SetInputFilter method)...

Answer 2

Ok i've a workaround but i'm not very statisfied of it .
First i've create a new FormFactory :
namespace Application\Form;
use Zend\Form\FieldsetInterface;
Class EntityFormFactory extends \Zend\Form\Factory {
public function configureFieldset(FieldsetInterface $fieldset, $spec)
{
$fieldset=parent::configureFieldset($fieldset, $spec);
$fieldset->input_filter_factory= $spec['input_filter'];
return $fieldset;
}
}
So this factory add the "input_filter" to a input_filter_factory variable of the fieldset.
Then in the fieldset class is :
class CcRepriseFieldset extends Fieldset implements \Zend\InputFilter\InputFilterProviderInterface
{
public function getInputFilterSpecification()
{
if (isset($this->input_filter_factory)){
return $this->input_filter_factory;
}
}
}
And finally, when i use annotationbuilder i change the formfactory :
$builder = new AnnotationBuilder($this->_em);
$builder->setFormFactory(new EntityFormFactory());
With this all is working fine... I'm not sur it's the best way to do it.