AddProductForm::getFormFields PHP Метод

    protected function getFormFields()
    {
        $fields = FieldList::create();
        if ($this->maxquantity) {
            $values = array();
            $count = 1;
            while ($count <= $this->maxquantity) {
                $values[$count] = $count;
                $count++;
            }
            $fields->push(DropdownField::create('Quantity', _t('Shop.Quantity', 'Quantity'), $values, 1));
        } else {
            $fields->push(NumericField::create('Quantity', _t('Shop.Quantity', 'Quantity'), 1)->setAttribute('type', 'number')->setAttribute('min', '0'));
        }
        return $fields;
    }