class UserNameUnique in Drupal 9

Checks if a user name is unique on the site.

Plugin annotation

@Constraint(
  id = "UserNameUnique",
  label = @Translation("User name unique", context = "Validation"),
)

Hierarchy

• class \Drupal\Core\Validation\Plugin\Validation\Constraint\UniqueFieldConstraint extends \Symfony\Component\Validator\Constraint
  • class \Drupal\user\Plugin\Validation\Constraint\UserNameUnique

File

core/modules/user/src/Plugin/Validation/Constraint/UserNameUnique.php, line 15

Namespace

Drupal\user\Plugin\Validation\Constraint

class UserNameUnique extends UniqueFieldConstraint {
  public $message = 'The username %value is already taken.';

}

Members

Name	Modifiers	Type	Description	Overrides
UniqueFieldConstraint::validatedBy	public	function
UserNameUnique::$message	public	property	Overrides UniqueFieldConstraint::$message