Symfony2: How to make username of FOSUserBundle user unique

Question

I have my own User Class, which inherits FOS\\UserBundle\\Entity\\User . Additionally I wrote my own registration routine. Now I have the problem that the form does not make sure that the username is unique. I always get:

SQLSTATE[23000]: Integrity constraint violation: 1062 Duplicate entry 'myusername' for key 'UNIQ_2DA1797792FC23A8'

I tried adding the @UniqueEntity("email") annotation as stated in the documentation 1 , but without any effect.

Someone knows what might be wrong?

Answer 1

If you're using the fos_user bundle, you can simply use the UniqueEntity constraint: http://symfony.com/doc/2.0/reference/constraints/UniqueEntity.html .

To implement it, just make sure your User class constains the proper use statements, and then the annotations, like so (assuming you're using annotations):

<?php
// ...
use Symfony\Component\Validator\Constraints as Assert;
use Symfony\Bridge\Doctrine\Validator\Constraints\UniqueEntity;

/**
 * @ORM\Entity
 * @ORM\Table(name="fos_user")
 * @UniqueEntity("email")
 * @UniqueEntity("username")
*/
class User extends BaseUser
{ /* ... */ }

Answer 2

The constraint exists in the FOS bundle already. You probably need to set the validation_groups option on your form to array('Registration') .

Answer 3

You can try this on the validation.yml with your user entity validation:

constraints:    
    - FOS\UserBundle\Validator\Unique:
        property: usernameCanonical
        message:  'This username already exists. Please choose another one.'