[翻譯] Payment Gateway Intergration-优快云博客

原文地址

http://www.magentocommerce.com/wiki/5_-_modules_and_development/payment/create-payment-method-module

介紹

每個支付接口方法可以被做成一個獨立的Module,一些方法可以被合並到同一個Module ，因為有可能他們共享相同的功能。

讓我們創建一個Module，它有一個支付方法將完成：

1. 接受信用卡信息

2.驗證訂單是否被提交

3.保存Transaction ID 到訂單支付記錄

我們的Moudle命名為NewModule

文件夾的創建確保：app/code/local 是include_path

如果你使用可配置緩存，不要忘記重置它，在修改了任何Config.xml文件，用刪除var/cache下面的文件來達到目的

一個不錯的建議：禁用Cashe，在開發階段

Moudle 聲明

創建app/etc/modules/CompanyName_NewModule.xml

<config>
    <modules>
<!-- declare CompanyName_NewModule module -->
        <CompanyName_NewModule>
<!-- this is an active module -->
            <active>true</active>
<!-- this module will be located in app/code/local code pool -->
            <codePool>local</codePool>
<!-- specify dependencies for correct module loading order -->
            <depends>
                <Mage_Payment />
            </depends>
        </CompanyName_NewModule>
    </modules>
</config>

現在應用程序就知道這個模塊了。我們讓Magento瞭解模塊的詳細信息

Module 的配置

創建：app/code/local/CompanyName/NewModule/etc/config.xml:

<?xml version="1.0"?>
<config>
    <modules>
       <CompanyName_NewModule>
<!-- declare module's version information for database updates -->
          <version>0.1.0</version>
       </CompanyName_NewModule>
    </modules>
 
    <global>
<!-- IMPORTANT: if you use your own namespace (i.e. CompanyName) you also have to declare blocks group for new module. See topic: http://www.magentocommerce.com/boards/viewthread/22416/#t102732 -->
    <blocks>
        <newmodule>
            <class>CompanyName_NewModule_Block</class>
        </newmodule>
    </blocks>
 
<!-- declare model group for new module -->
        <models>
<!-- model group alias to be used in Mage::getModel('newmodule/...') -->
            <newmodule>
<!-- base class name for the model group -->
                <class>CompanyName_NewModule_Model</class>
            </newmodule>
        </models>
 
<!-- declare resource setup for new module -->
        <resources>
<!-- resource identifier -->
            <newmodule_setup>
<!-- specify that this resource is a setup resource and used for upgrades -->
                <setup>
<!-- which module to look for install/upgrade files in -->
                    <module>CompanyName_NewModule</module>
                </setup>
<!-- specify database connection for this resource -->
                <connection>
<!-- do not create new connection, use predefined core setup connection -->
                    <use>core_setup</use>
                </connection>
            </newmodule_setup>
            <newmodule_write>
                <connection>
                  <use>core_write</use>
                </connection>
            </newmodule_write>
            <newmodule_read>
               <connection>
                <use>core_read</use>
              </connection>
            </newmodule_read>
        </resources>
    </global>
 
<!-- declare default configuration values for this module -->
    <default>
<!-- 'payment' configuration section (tab) -->
        <payment>
<!-- 'newmodule' configuration group (fieldset) -->
            <newmodule>
<!-- by default this payment method is inactive -->
                <active>0</active>
<!-- model to handle logic for this payment method -->
                <model>newmodule/paymentMethod</model>
<!-- order status for new orders paid by this payment method -->
                <order_status>pending</order_status>
<!-- default title for payment checkout page and order view page -->
                <title>Credit Card (Authorize.net)</title>
 
                <cctypes>AE,VI,MC,DI</cctypes>
                <payment_action>authorize</payment_action>
                <allowspecific>0</allowspecific>
            </newmodule>
         </payment>
    </default>
</config>

適配器model

備註：PaymentMethod是隨意的，根據你自己意願來，你需要定義這個方法名字在config.xml裏面。比如上面的config→default→payment→newmodule→model

創建app/code/local/CompanyName/NewModule/Model/PaymentMethod.php:

<?php
 
/**
* Our test CC module adapter
*/
class CompanyName_NewModule_Model_PaymentMethod extends Mage_Payment_Model_Method_Cc
{
    /**
    * unique internal payment method identifier
    *
    * @var string [a-z0-9_]
    */
    protected $_code = 'newmodule';
 
    /**
     * Here are examples of flags that will determine functionality availability
     * of this module to be used by frontend and backend.
     *
     * @see all flags and their defaults in Mage_Payment_Model_Method_Abstract
     *
     * It is possible to have a custom dynamic logic by overloading
     * public function can* for each flag respectively
     */
     
    /**
     * Is this payment method a gateway (online auth/charge) ?
     */
    protected $_isGateway               = true;
 
    /**
     * Can authorize online?
     */
    protected $_canAuthorize            = true;
 
    /**
     * Can capture funds online?
     */
    protected $_canCapture              = true;
 
    /**
     * Can capture partial amounts online?
     */
    protected $_canCapturePartial       = false;
 
    /**
     * Can refund online?
     */
    protected $_canRefund               = false;
 
    /**
     * Can void transactions online?
     */
    protected $_canVoid                 = true;
 
    /**
     * Can use this payment method in administration panel?
     */
    protected $_canUseInternal          = true;
 
    /**
     * Can show this payment method as an option on checkout payment page?
     */
    protected $_canUseCheckout          = true;
 
    /**
     * Is this payment method suitable for multi-shipping checkout?
     */
    protected $_canUseForMultishipping  = true;
 
    /**
     * Can save credit card information for future processing?
     */
    protected $_canSaveCc = false;
 
    /**
     * Here you will need to implement authorize, capture and void public methods
     *
     * @see examples of transaction specific public methods such as
     * authorize, capture and void in Mage_Paygate_Model_Authorizenet
     */
}
?>

這是將會做所有與你的支付接口交互的類，當某人創建一個訂單，驗證與捕獲方法會調用你這個類的方法，根據你的配置信息來。如果在你的管理界面你已經選擇了Authorize Only, 那麼驗證方法會被調用，如果你選擇了Authorize and Capture，容易混淆的只有capture方法被調用，如果你需要說明一個錯誤。在這些方法內，你可以使用

Mage::throwException("My error/debug message here");

這講導致Magento顯示一個JS的彈出窗口，終止訂單進度

現在我們有一個model讓我們給管理員一個渠道去配置它，也可以讓結算流程知道這個方法

聲明配置選項到後臺配置項：

這文件將定義可配置選項在Magento後臺的System->Configration

創建app/code/local/CompanyName/NewModule/etc/system.xml:

<?xml version="1.0"?>
<config>
   <sections>
<!-- payment tab -->
        <payment>
            <groups>
<!-- newmodule fieldset -->
                <newmodule translate="label" module="paygate">
<!-- will have title 'New Module' -->
                    <label>New Module</label>
<!-- position between other payment methods -->
                    <sort_order>670</sort_order>
<!-- do not show this configuration options in store scope -->
                    <show_in_default>1</show_in_default>
                    <show_in_website>1</show_in_website>
                    <show_in_store>0</show_in_store>
                    <fields>
<!-- is this payment method active for the website? -->
                        <active translate="label">
<!-- label for the field -->
                            <label>Enabled</label>
<!-- input type for configuration value -->
                            <frontend_type>select</frontend_type>
<!-- model to take the option values from -->
                            <source_model>adminhtml/system_config_source_yesno</source_model>
<!-- field position -->
                            <sort_order>1</sort_order>
<!-- do not show this field in store scope -->
                            <show_in_default>1</show_in_default>
                            <show_in_website>1</show_in_website>
                            <show_in_store>0</show_in_store>
                        </active>
                        <order_status translate="label">
                            <label>New order status</label>
                            <frontend_type>select</frontend_type>
                            <source_model>adminhtml/system_config_source_order_status_processing</source_model>
                            <sort_order>4</sort_order>
                            <show_in_default>1</show_in_default>
                            <show_in_website>1</show_in_website>
                            <show_in_store>0</show_in_store>
                        </order_status>
                        <title translate="label">
                            <label>Title</label>
                            <frontend_type>text</frontend_type>
                            <sort_order>2</sort_order>
                            <show_in_default>1</show_in_default>
                            <show_in_website>1</show_in_website>
                            <show_in_store>0</show_in_store>
                        </title>
                    </fields>
                </newmodule>
            </groups>
        </payment>
    </sections>
</config>

如果你跑去Admin / System / Configuration / Payment Methods，你會看到“New Module” 組，啟用它，嘗試去結帳，在支付方法頁面你會看到“New Module” 支付方法，並且有個信用卡表單

數據庫更新

創建 app/code/local/CompanyName/NewModule/sql/newmodule_setup/mysql4-install-0.1.0.php:

<?php
// here are the table creation for this module e.g.:
$this->startSetup();
$this->run("HERE YOUR SQL");
$this->endSetup();

更新你的config.xml文件里的模塊版本號

    <modules>
       <CompanyName_NewModule>
          <version>0.2.0</version>
       </CompanyName_NewModule>
    </modules>

然後創建文件：app/code/local/CompanyName/NewModule/sql/newmodule_setup/mysql4-upgrade-0.1.0-0.2.0.php:

<?php
// here are the table updates for this module e.g.:
$this->startSetup();
$this->run("HERE YOUR UPDATE SQL");
$this->endSetup();