protected function _createAttribute( MShop_Order_Item_Base_Product_Interface $product, $code, $value, $name = null )
	{
		if( $product->getAttribute( $code ) !== null ) {
			return null;
		}

		$new = $this->_orderAttrManager->createItem();
		$new->setCode( $code );
		$new->setType( $this->_type );
		$new->setName( $name );
		$new->setValue( $value );

		return $new;
	}