/**
* Don't allow creating variant group type if one already exists
*
* @param GroupTypeInterface $groupType
* @param Constraint $constraint
*/
public function validate($groupType, Constraint $constraint)
{
if ($groupType->isVariant()) {
$variantGroupType = $this->groupTypeRepository->getVariantGroupType();
if (null !== $variantGroupType && $variantGroupType->getId() !== $groupType->getId()) {
$this->context->buildViolation($constraint->message)->addViolation();
}
}
}
