public function getGroups(FcFieldConstraint $fc_constraint)
 {
     return array($fc_constraint->getConstraint() . '_' . $fc_constraint->getFieldId());
 }
 protected function buildFieldConstraint(&$options, FcFieldConstraint $fc_constraint, ConstraintChain $constraint_chain)
 {
     $constraint = $constraint_chain->getConstraint($fc_constraint->getConstraint());
     $constraint->buildConstraint($options, $fc_constraint);
 }