Magento - 如何在结账过程中为订单添加发票费用

<global><sales><quote><total>

app/code/core/Mage/Sales/etc/config.xml

<paymentFee>
    <class>yourmodule/quote_address_total_paymentFee</class> <!-- A model -->
    <after>subtotal</after>
</paymentFee>

config.xml

<global>

<fieldsets>
    <sales_convert_quote>
        <payment_fee><to_order>*</to_order></payment_fee>
    </sales_convert_quote>
</fieldsets>

class Your_Module_Model_Quote_Address_Total_Warranty extends Mage_Sales_Model_Quote_Address_Total_Abstract
{
    public function __construct()
    {
        $this->setCode('paymentFee');
    }

    public function collect(Mage_Sales_Model_Quote_Address $address)
    {
        // Check the payment method in use, if it is yours do...
        $address->setPaymentFee($fee);
        return $this;
    }

    public function fetch(Mage_Sales_Model_Quote_Address $address)
    {
        if ($address->getPaymentFee()) {
            $address->addTotal(array(
                'code'  => $this->getCode(),
                'title' => 'Your module payment message',
                'value' => $address->getPaymentFee()
            ));
        }
        return $this;
    }
}

sales_flat_quote

sales_flat_order

<after>

<before>

fetch()

fetch()