add( 'name', TextType::class, [ 'label' => 'Name', 'required' => true, 'attr' => [ ], 'constraints' => [ new NotBlank(), ], ] ); $builder->add( 'defaultValue', TextType::class, [ 'label' => 'Default value', 'required' => false, 'attr' => [ ], 'constraints' => [ ], ] ); $builder->add( 'requirement', TextType::class, [ 'label' => 'Requirement', 'help' => 'Regular expression', 'required' => false, 'attr' => [ ], 'constraints' => [ ], ] ); } public function configureOptions(OptionsResolver $resolver) { $resolver->setDefaults([ 'data_class' => null, ]); } }