private function _saveDropdownOptions($attribute, $request)
    {
        if (null !== $request->get('dropdown-options')) {
            if (null != $attribute->attributeDropdownOptions()->get() &&
                $attribute->attributeDropdownOptions()->get()->count() >= 0
                ) {
                $attribute->attributeDropdownOptions()->delete();
            }

            foreach ($request->get('dropdown-options') as $key => $val) {
                if ($key == '__RANDOM_STRING__') {
                    continue;
                }

                $attribute->attributeDropdownOptions()->create($val);
            }
        }
    }