if ($Product && $Product->getProductClasses()) {
                if ($Product->getClassName1()) {
                    $builder->add('classcategory_id1', 'choice', array(
                        'label' => $Product->getClassName1(),
                        'choices'   => array('__unselected' => '選択してください') + $Product->getClassCategories1(),
                    ));
                }
                if ($Product->getClassName2()) {
                    $builder->add('classcategory_id2', 'choice', array(
                        'label' => $Product->getClassName2(),
                        'choices' => array('__unselected' => '選択してください'),
                    ));
                }
            }

    public function configureOptions(OptionsResolver $resolver)
    {
        $resolver->setDefaults(array(
            'class' => 'Eccube\Entity\Category',
            'property' => 'NameWithLevel',
            // なぜかDESC
            'query_builder' => function(EntityRepository $er) {
                return $er->createQueryBuilder('c')
                    ->orderBy('c.rank', 'DESC');
            },
        ));
    }