3 namespace Drupal\media_entity_slideshow\Plugin\Validation\Constraint;
5 use Symfony\Component\Validator\Constraint;
6 use Symfony\Component\Validator\ConstraintValidator;
9 * Validates the ItemsCount constraint.
11 class ItemsCountConstraintValidator extends ConstraintValidator {
16 public function validate($value, Constraint $constraint) {
21 if ($value->get($constraint->sourceFieldName)->isEmpty()) {
22 $this->context->addViolation($constraint->message);