use Doctrine\Common\Collections\ArrayCollection;
use Doctrine\ORM\Mapping as ORM;
+use Symfony\Bridge\Doctrine\Validator\Constraints\UniqueEntity;
use Symfony\Component\Security\Core\User\UserInterface;
use Symfony\Component\Security\Core\User\AdvancedUserInterface;
use Symfony\Component\Validator\Constraints as Assert;
* @ORM\Entity(repositoryClass="Wallabag\CoreBundle\Repository\UserRepository")
* @ORM\HasLifecycleCallbacks()
* @ExclusionPolicy("all")
+ *
+ * @UniqueEntity("email")
+ * @UniqueEntity("username")
*/
class User implements AdvancedUserInterface, \Serializable
{