.. index:: single: Forms; Validation groups How to Define the Validation Groups to Use ========================================== Validation Groups ----------------- If your object takes advantage of :doc:`validation groups `, you'll need to specify which validation group(s) your form should use. Pass this as an option when :ref:`creating forms in controllers `:: $form = $this->createFormBuilder($user, [ 'validation_groups' => ['registration'], ])->add(...); When :ref:`creating forms in classes `, add the following to the ``configureOptions()`` method:: use Symfony\Component\OptionsResolver\OptionsResolver; public function configureOptions(OptionsResolver $resolver) { $resolver->setDefaults([ // ... 'validation_groups' => ['registration'], ]); } In both of these cases, *only* the ``registration`` validation group will be used to validate the underlying object. To apply the ``registration`` group *and* all constraints that are not in a group, use:: 'validation_groups' => ['Default', 'registration']