保存付款方式之前，如何获得报价总额? [英] How do I get quote totals before saving payment method?

问题描述

我正在尝试创建一步式结帐，但是在结帐页面上，我的订单审查部分存在问题.例如，当我选择一种付款方式时，货到付款"有5美元的额外费用，或者支票"有％4的折扣，或者信用卡付款"为订单总额增加了额外费用. 我需要一种在保存付款方式之前计算折扣的方法.有什么建议吗?

I am trying to create a one step checkout, but in the checkout page I have problem with order review part . When I select a payment method for example "cash on deliver" has 5$ extra, or "checkorder" has %4 discount or "credit card payment" adds extra to the order total. I need a way to calculate the discounts before saving the payment method. Any suggestion?

推荐答案

由于我们正在谈论Magento，因此有几种方法可以做到这一点.实现该功能的最佳方法是为折扣或额外费用创建自己的总模型.

Because we are talking about Magento, there are several ways you could do this. The best way to implement that functionality would be to create your own total models for the discounts or additional charges.

要创建自己的总体模型，您首先需要创建一个模块，然后将总体模型添加到配置中.

To create your own total model you first need to create a module, and add the total models to the configuration.

<global>
  <sales>
    <quote>
      <totals>
        <your_total>
          <class>your_module/quote_address_total_yourTotal</class>
          <after>shipping</after><!-- calculate after these total models -->
          <before>grand_total,tax</before><!-- calculate before these total models -->
        </your_total>
      </totals>
    </quote>
    <order_invoice>
      <totals>
        <your_total>
          <class>your_module/order_invoice_total_yourTotal</class>
          <after>shipping</after>
          <before>grand_total,tax</before>
        </your_total>
      </totals>
    </order_invoice>
    <order_creditmemo>
      <totals>
        <your_total>
          <class>your_module/order_creditmemo_total_yourTotal</class>
          <after>shipping</after>
          <before>grand_total,tax</before>
        </your_total>
      </totals>
    </order_creditmemo>
  </sales>
  <pdf>
    <totals>
      <your_total translate="title">
        <title>Your Total</title>
        <source_field>your_total</source_field>
        <font_size>7</font_size>
        <display_zero>0</display_zero>
        <sort_order>450</sort_order>
      </your_total>
    </totals>
  </pdf>
</global>

然后实现XML中指定的三个类.
引用地址总数需要扩展sales/quote_address_total_abstract并实现两种方法collect()和fetch().

Then implement the three classes specified in the XML.
The quote address total needs to extend sales/quote_address_total_abstract and implement the two methods collect() and fetch().

class Your_Module_Model_Quote_Address_Total_YourTotal
    extends Mage_Sales_Model_Quote_Address_Total_Abstract
{
    // Calculate your total value
    public function collect(Mage_Sales_Model_Quote_Address $address)
    {
        parent::collect($address);

        // Calculate the totals based on the information in the $address
        // and the $address->getQuote()
        // To get the items in the cart use $address->getAllItems()
        // To get the payment method use getPayment()->getMethodInstance()
        // etc

        // When your totals are known..
        $this->_addAmount($total); // store view currency amount
        $this->_addBaseAmount($baseTotal); // base currency amount

        // Also store in address for later reference in fetch()
        $address->setMyTotal($total);
        $address->setBaseMyTotal($baseTotal);

        return $this;
    }

    // If the total should be displayed in the cart and the checkout
    // add them to the address model here, otherwise just return
    // (it will still be calculated and added to the grand total)
    public function fetch(Mage_Sales_Model_Quote_Address $address)
    {
        if ($address->getMyTotal() > 0)
        {
            $address->addTotal(array(
                'code'  => $this->getCode(),
                'title' => Mage::helper('your_module')->__('Your Total'),
                'value' => $address->getMyTotal()
            ));
        }
        return $this;
    }
}

在配置XML中指定的下一个类是发票总模型your_module/order_invoice_total_yourTotal.

The next class specified in the config XML is the invoice total model your_module/order_invoice_total_yourTotal.

class Your_Module_Model_Order_Invoice_Total_YourTotal
    extends Mage_Sales_Model_Order_Invoice_Total_Abstract
{
    // Collect the totals for the invoice
    public function collect(Mage_Sales_Model_Order_Invoice $invoice)
    {
        $order = $invoice->getOrder();
        $myTotal = $order->getMyTotal();
        $baseMyTotal = $order->getBaseMyTotal();

        $invoice->setGrandTotal($invoice->getGrandTotal() + $myTotal);
        $invoice->setBaseGrandTotal($invoice->getBaseGrandTotal() + $basemyTotal);

        return $this;
    }
}

您需要在creditmemo总计模型中实现的最终类(与发票总计模型一样)，只是它扩展了抽象类Mage_Sales_Model_Order_Creditmemo_Total_Abstract.

The final class you need to implement in the creditmemo total model, which is just like the invoice total model, only it extends the abstract class Mage_Sales_Model_Order_Creditmemo_Total_Abstract.

您还需要使用安装脚本添加属性:

You will also need to add the attributes using a setup script:

/**
 * @var Mage_Sales_Model_Resource_Setup $installer
 */
$installer = Mage::getResourceModel('sales/setup', 'default_setup');

$installer->startSetup();

$installer->addAttribute('order', 'base_your_total', array(
    'label' => 'Base Your Total',
    'type'  => 'decimal',
));

$installer->addAttribute('order', 'your_total', array(
    'label' => 'Your Total',
    'type'  => 'decimal',
));

$installer->addAttribute('invoice', 'base_your_total', array(
    'label' => 'Base Your Total',
    'type'  => 'decimal',
));

$installer->addAttribute('invoice', 'your_total', array(
    'label' => 'Your Total',
    'type'  => 'decimal',
));

$installer->addAttribute('creditmemo', 'base_your_total', array(
    'label' => 'Base Your Total',
    'type'  => 'decimal',
));

$installer->addAttribute('creditmemo', 'your_total', array(
    'label' => 'Your Total',
    'type'  => 'decimal',
));

$installer->endSetup();

为了在管理区域中显示新的总计，您需要使用布局XML为其添加总计块.在模块的adminhtml区域中注册布局更新文件.以下是示例内容:

In order to display the new total in the admin area, you need to add a totals block for it using layout XML. Register a layout update file for the adminhtml area in your module. Here is a sample content:

<layout version="0.1.0">

  <adminhtml_sales_order_view>
    <reference name="order_totals">
      <block type="your_module/sales_total_yourTotal" name="total_your_total" as="your_total"/>
    </reference>
  </adminhtml_sales_order_view>

  <adminhtml_sales_order_invoice_new>
    <reference name="invoice_totals">
      <block type="your_module/sales_total_yourTotal" name="total_your_total" as="your_total"/>
    </reference>
  </adminhtml_sales_order_invoice_new>

  <adminhtml_sales_order_invoice_updateqty>
    <reference name="invoice_totals">
      <block type="your_module/sales_total_yourTotal" name="total_your_total" as="your_total"/>
    </reference>
  </adminhtml_sales_order_invoice_updateqty>

  <adminhtml_sales_order_invoice_view>
    <reference name="invoice_totals">
      <block type="your_module/sales_total_yourTotal" name="total_your_total" as="your_total"/>
    </reference>
  </adminhtml_sales_order_invoice_view>

  <adminhtml_sales_order_creditmemo_new>
    <reference name="creditmemo_totals">
      <block type="your_module/sales_total_yourTotal" name="total_your_total" as="your_total"/>
    </reference>
  </adminhtml_sales_order_creditmemo_new>

  <adminhtml_sales_order_creditmemo_view>
    <reference name="creditmemo_totals">
      <block type="your_module/sales_total_yourTotal" name="total_your_total" as="your_total"/>
    </reference>
  </adminhtml_sales_order_creditmemo_view>

</layout>

如果您不想在某个地方显示总计，只需将其省略.它将仍然被计算. 好吧，快到了.最后，管理区域总块类的实现:

If you don't want to display your total somewhere, just leave it out. It will still be calculated. Okay, almost there. Finally, the admin area total block class implementation:

// Many ways to implement this, here is one option
class Your_Module_Block_Sales_Total_YourTotal
    extends Mage_Core_Block_Abstract
{
    public function initTotals()
    {
        $parent = $this->getParentBlock();

        $value = $parent->getSource()->getMyTotal();

        if ($value > 0)
        {
            $total = new Varien_Object(array(
            'code'  => 'my_total',
            'value' => $parent->getSource()->getMyTotal(),
            'base_value' => $parent->getSource()->getBaseMyTotal(),
            'label' => $this->__('My Total'),
            'field' => 'my_total'
            ));
            $parent->addTotal($total, 'my_total');
        }
        return $this;
    }
}

现在唯一缺少的是用于将总金额从报价地址复制到订单，以及从订单复制到发票和贷方的字段集.将以下XML添加到config.xml中:

Now the only thing missing is the fieldset to copy the total amount from the quote address to the order, and from the order to the invoice and creditmemo. Add the following XML to the config.xml:

<fieldsets>
    <sales_convert_quote_address>
        <shipping_surcharge><to_order>*</to_order></shipping_surcharge>
        <base_shipping_surcharge><to_order>*</to_order></base_shipping_surcharge>
    </sales_convert_quote_address>
    <sales_convert_order>
        <shipping_surcharge><to_invoice>*</to_invoice><to_cm>*</to_cm></shipping_surcharge>
    </sales_convert_order>
</fieldsets>

就这样.总数将显示在任何地方(包括生成的PDF).
正如我所说，还有许多其他方法可以简单地更新核心中已经存在的总模型的值，但这是实现它的完整方法.

And thats it. The total will be displayed everywhere (including the generated PDF's).
As I said, there are many other ways to simply update the values of the total models already present in the core, but this is the full blown way to implement it.

这篇关于保存付款方式之前，如何获得报价总额?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！