Assert unique validation in Sonata Admin

Question

I'm using Symfony 2.1 for a project. I use SonataAdminBundle for administration usage. i want to add an assert to my slug property in my admin class.. how can i do this?

in my entity i had set the assertion but it seems that it doesn't work here :(

related codes: the entity :

/*
 * @ORM\Table(name="default_doctor_specialty")
 * @UniqueEntity("uniqueSlugName")
 * @ORM\Entity
 */
class Test {
 //..
    /**
 * @var string
 * @Gedmo\Slug(fields={"name"},unique=false)
 * 
 * @ORM\Column(name="unique_slug_name", type="string", length=255, nullable=false , unique=true)
 */
private $uniqueSlugName;
}

in admin class:

class TestAdmin extends Admin {

protected $formOptions = array(
    'validation_groups' => 'Default'
);
 //...
  }

why the default validation doesn't work???

& even if doesn't work like this how can i set the unique validation inside admin class ???

thanks for your answers :)

Answer 1

finally i defined a validation group for my entity:

use Symfony\Bridge\Doctrine\Validator\Constraints as DoctrineAssert;
/*
 * @ORM\Table(name="default_doctor_specialty")
* @DoctrineAssert\UniqueEntity(fields="uniqueSlugName", message="A Speciality with same slug already exists", groups={"test"})
* @ORM\Entity
*/
class Test {
//..
/**
* @var string
* @Gedmo\Slug(fields={"name"},unique=false)
* 
* @ORM\Column(name="unique_slug_name", type="string", length=255, nullable=false , unique=true)
*/
private $uniqueSlugName;
}

---

and in admin class i used test validation group instead of default!

thanks to AHWEBDEV on github!