Zend Framework 2 Doctrine 2 one-to-many checkbox hydration - doctrine-orm

Question

I have a ManyToMany that I broke into OneToMany and ManyToOne relationship. I want to build a form that has checkboxes instead of collection, and I am using the 'DoctrineObject' hydrator, but it does not work and I don't know what is going wrong.
I removed from my code below all of the other not related fields.
Role Entity:
/**
* #orm\Entity
* #orm\Table(name="roles")
*/
class RolesEntity extends HemisEntity {
/**
* #orm\Id
* #orm\Column(type="integer");
* #ORM\GeneratedValue(strategy="IDENTITY")
*/
protected $id;
/**
* #orm\Column(name="role_code",type="string")
*/
protected $roleCode;
/**
* #orm\OneToMany(targetEntity="RolesPermissionsEntity", mappedBy="role", cascade={"persist"})
*/
protected $rolePermissions;
public function __construct()
{
$this->rolePermissions = new ArrayCollection();
}
public function setRolePermissions($rolePermissions)
{
$this->rolePermissions = $rolePermissions;
return $this;
}
public function addRolePermissions(Collection $rolePermissions)
{
foreach ($rolePermissions as $rolePermission) {
$rolePermission->setRole($this);
$this->rolePermissions->add($rolePermission);
}
}
public function removeRolePermissions(Collection $rolePermissions)
{
foreach ($rolePermissions as $rolePermission) {
$rolePermission->setRole(null);
$this->rolePermissions->removeElement($rolePermission);
}
}
public function getRolePermissions()
{
return $this->rolePermissions;
}
}
The ManyToMany table entity (it has more fields and so I broke it):
/**
* #orm\Entity
* #orm\Table(name="roles_permissions")
*/
class RolesPermissionsEntity extends HemisEntity {
/**
* #orm\Id
* #orm\Column(type="integer");
* #ORM\GeneratedValue(strategy="IDENTITY")
*/
protected $id;
/**
* #orm\ManyToOne(targetEntity="RolesEntity", inversedBy="rolePermissions")
* #orm\JoinColumn(name="role_id", referencedColumnName="id")
**/
protected $role;
/**
* #orm\ManyToOne(targetEntity="PermissionsEntity", inversedBy="permissionRoles")
* #orm\JoinColumn(name="permission_id", referencedColumnName="id")
**/
protected $permission;
public function setRole($role)
{
$this->role = $role;
return $this;
}
public function getRole()
{
return $this->role;
}
public function setPermission($permission)
{
$this->permission = $permission;
return $this;
}
public function getPermission()
{
return $this->permission;
}
}
My form look like this:
class RoleForm extends Form implements InputFilterProviderInterface
{
public function __construct(ObjectManager $objectManager)
{
parent::__construct('role');
$this->setHydrator(new DoctrineHydrator($objectManager))
->setObject(new RolesEntity());
$this->add(array(
'type' => 'Zend\Form\Element\Hidden',
'name' => 'id'
));
$this->add(array(
'type' => 'Zend\Form\Element\Text',
'name' => 'roleCode',
'options' => array(
'label' => 'Role Code'
),
));
$this->add(array(
'name' => 'rolePermissions',
'type' => 'DoctrineModule\Form\Element\ObjectMultiCheckbox',
'options' => array(
'label' => 'Permissions',
'object_manager' => $objectManager,
'target_class' => 'Hemis\Fnd\PermissionsEntity',
'property' => 'permissionDesc'
),
));
$this->add(array(
'name' => 'submit',
'type' => 'Submit',
'attributes' => array(
'value' => 'Submit',
),
));
}
public function getInputFilterSpecification()
{
return array(
'roleCode' => array(
'required' => false
),
'rolePermissions' => array(
'required' => true
)
);
}
}
The problem is that when I dump the $role it does not contains any rolePermissions and even that they are passed from the form they are just not hydrated into the object. I hope that my question is clear.
Any idea about what is wrong with my code or there is a better way to do that using checkboxes?

Answer 1

class RoleForm extends Form implements InputFilterProviderInterface
{
public function __construct(ObjectManager $objectManager)
{
// ...
$this->add(array(
'name' => 'rolePermissions',
'type' => 'Zend\Form\Element\Collection',
'options' => array(
'label' => 'Role Permissions',
'count' => 0,
'should_create_template' => true,
'allow_add' => true,
'target_element' => array(
'type' => 'Zend\Form\Fieldset',
'options' => array(
'use_as_base_fieldset' => true
),
'elements' => array(
// add form fields for the properties of the RolesPermissionsEntity class here
array(
'name' => 'id',
'type' => 'Zend\Form\Element\Hidden',
),
array(
'name' => 'role',
'type' => 'Zend\Form\Element\Checkbox',
// other options
),
// ...
),
),
),
));
// ...
}
// ...
}