Elcodi\Admin\ProductBundle\Form\Type\PackType::getBlockPrefix PHP Метод

The block prefix defaults to the underscored short class name with the "Type" suffix removed (e.g. "UserProfileType" => "user_profile").

public getBlockPrefix ( ) : string
Результат	string	The prefix of the template block name

    public function getBlockPrefix()
    {
        return 'elcodi_admin_product_form_type_purchasable_pack';
    }

PackType