namespace Customize\Form\Extension;

use Eccube\Form\Type\Admin\ProductClassType;
use Eccube\Form\Type\PriceType;
use Symfony\Component\Form\AbstractTypeExtension;
use Symfony\Component\Form\Extension\Core\Type\TextType;
use Symfony\Component\Form\FormBuilderInterface;
use Symfony\Component\Validator\Constraints as Assert;

class ProductClassExtension extends AbstractTypeExtension
{

    /** 
     * {@inheritdoc}
     */
    public function buildForm(FormBuilderInterface $builder, array $options)
    {   
        $builder
            ->add(‘hoge’, PriceType::class, [
                'label' => trans('admin.product.hoge’),
                'eccube_form_options' => [
                    'auto_render' => true,
                ],  
            ])  
            ->add(‘foo’, TextType::class, [
                'label' => trans('admin.product.foo’),
                'eccube_form_options' => [
                    'auto_render' => true,
                ],  
                'constraints' => [
                    new Assert\NotBlank(),
                ]   
            ]); 
                                                                                                                                                                                                    
    }   

    /** 
     * {@inheritdoc}
     */
    public function getExtendedType()
    {   
        return ProductClassType::class;
    }   
}