class UniqueReferenceConstraint in CRM Core 8.3

Entity Reference unique reference constraint.

Verifies that referenced entities referenced only once.

Plugin annotation

@Constraint(
  id = "UniqueReference",
  label = @Translation("Unique Entity Reference reference", context = "Validation")
)

Hierarchy

• class \Drupal\crm_core_user_sync\Plugin\Validation\Constraint\UniqueReferenceConstraint extends \Symfony\Component\Validator\Constraint

File

modules/crm_core_user_sync/src/Plugin/Validation/Constraint/UniqueReferenceConstraint.php, line 17

Namespace

Drupal\crm_core_user_sync\Plugin\Validation\Constraint

class UniqueReferenceConstraint extends Constraint {

  /**
   * The default violation message.
   *
   * @var string
   */
  public $message = 'A @entity_type with @field_name referencing entity with ID @id already exists.';

}

Members

Name	Modifiers	Type	Description	Overrides
UniqueReferenceConstraint::$message	public	property	The default violation message.