我正在为Magento开发一个支付模块。我使用这个教程做到了这一点
http://www.magentocommerce.com/wiki/5_-_modules_and_development/payment/create-payment-method-module
我已创建文件夹
app/local/Companyname/Cashondelivery/Block
app/local/Companyname/Cashondelivery/Model
app/local/Companyname/Cashondelivery/controller
app/local/Companyname/Cashondelivery/etc
app/local/Companyname/Cashondelivery/helpers
etc/config.xml
<?xml version="1.0"?>
<config>
<modules>
<Companyname_Cashondelivery>
<!-- declare module's version information for database updates -->
<version>0.1.0</version>
</Companyname_Cashondelivery>
</modules>
<global>
<!-- declare model group for new module -->
<models>
<!-- model group alias to be used in Mage::getModel('newmodule/...') -->
<createorder>
<!-- base class name for the model group -->
<class>Companyname_Cashondelivery_createorder</class>
</createorder>
</models>
<!-- declare resource setup for new module -->
<resources>
<!-- resource identifier -->
<cashondelivery_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_Cashondelivery</module>
</setup>
<!-- specify database connection for this resource -->
<connection>
<!-- do not create new connection, use predefined core setup connection -->
<use>core_setup</use>
</connection>
</cashondelivery_setup>
<cashondelivery_write>
<connection>
<use>core_write</use>
</connection>
</cashondelivery_write>
<cashondelivery_read>
<connection>
<use>core_read</use>
</connection>
</cashondelivery_read>
</resources>
</global>
<!-- declare default configuration values for this module -->
<default>
<!-- 'payment' configuration section (tab) -->
<payment>
<!-- 'newmodule' configuration group (fieldset) -->
<cashondelivery>
<!-- by default this payment method is inactive -->
<active>0</active>
<!-- model to handle logic for this payment method -->
<model>cashondelivery/createorder</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>Companyname</title>
</cashondelivery>
</payment>
</default>
</config>
app/local/Companyname/Modulename/etc/system.xml
<?xml version="1.0"?>
<config>
<sections>
<payment>
<groups>
<cashondelivery translate="label" module="cashondelivery">
<label>Cash On Delivery</label>
<frontend_type>text</frontend_type>
<sort_order>10</sort_order>
<show_in_default>1</show_in_default>
<show_in_website>1</show_in_website>
<show_in_store>1</show_in_store>
<!--<comment>[CDATA[<a href="http://celinks.magento.com/authorize_netRegistration" target="_blank">Click here to sign up for an Authorize.net account</a>]]></comment>-->
<fields>
<active translate="label">
<label>Enabled</label>
<frontend_type>select</frontend_type>
<source_model>adminhtml/system_config_source_yesno</source_model>
<sort_order>1</sort_order>
<show_in_default>1</show_in_default>
<show_in_website>1</show_in_website>
<show_in_store>0</show_in_store>
</active>
<email_customer translate="label">
<label>Email Customer</label>
<frontend_type>select</frontend_type>
<source_model>adminhtml/system_config_source_yesno</source_model>
<sort_order>10</sort_order>
<show_in_default>1</show_in_default>
<show_in_website>1</show_in_website>
<show_in_store>0</show_in_store>
</email_customer>
<login translate="label">
<label>API Login ID</label>
<frontend_type>obscure</frontend_type>
<backend_model>adminhtml/system_config_backend_encrypted</backend_model>
<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>
</login>
<merchant_email translate="label">
<label>Merchant's Email</label>
<frontend_type>text</frontend_type>
<sort_order>11</sort_order>
<show_in_default>1</show_in_default>
<show_in_website>1</show_in_website>
<show_in_store>0</show_in_store>
</merchant_email>
<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>
<sort_order translate="label">
<label>Sort Order</label>
<frontend_type>text</frontend_type>
<sort_order>100</sort_order>
<show_in_default>1</show_in_default>
<show_in_website>1</show_in_website>
<show_in_store>0</show_in_store>
</sort_order>
<test translate="label">
<label>Test Mode</label>
<frontend_type>select</frontend_type>
<source_model>adminhtml/system_config_source_yesno</source_model>
<sort_order>5</sort_order>
<show_in_default>1</show_in_default>
<show_in_website>1</show_in_website>
<show_in_store>0</show_in_store>
</test>
<debug translate="label">
<label>Debug</label>
<frontend_type>select</frontend_type>
<source_model>adminhtml/system_config_source_yesno</source_model>
<sort_order>6</sort_order>
<show_in_default>1</show_in_default>
<show_in_website>1</show_in_website>
<show_in_store>0</show_in_store>
</debug>
<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>1</show_in_store>
</title>
<payment_action translate="label">
<label>Payment Action</label>
<frontend_type>select</frontend_type>
<source_model>cashondelivery/createorder</source_model>
<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>
</payment_action>
<cgi_url>
<label>Gateway URL</label>
<frontend_type>text</frontend_type>
<sort_order>5</sort_order>
<show_in_default>1</show_in_default>
<show_in_website>1</show_in_website>
<show_in_store>0</show_in_store>
</cgi_url>
<min_order_total translate="label">
<label>Minimum Order Total</label>
<frontend_type>text</frontend_type>
<sort_order>98</sort_order>
<show_in_default>1</show_in_default>
<show_in_website>1</show_in_website>
<show_in_store>0</show_in_store>
</min_order_total>
<max_order_total translate="label">
<label>Maximum Order Total</label>
<frontend_type>text</frontend_type>
<sort_order>99</sort_order>
<show_in_default>1</show_in_default>
<show_in_website>1</show_in_website>
<show_in_store>0</show_in_store>
</max_order_total>
<allow_partial_authorization translate="label">
<label>Allow Partial Authorization</label>
<frontend_type>select</frontend_type>
<source_model>adminhtml/system_config_source_yesno</source_model>
<sort_order>110</sort_order>
<show_in_default>1</show_in_default>
<show_in_website>1</show_in_website>
<show_in_store>0</show_in_store>
</allow_partial_authorization>
<model>
</model>
</fields>
</cashondelivery>
</groups>
</payment>
</sections>
</config>
然后我创建了一个模型类
<?php
/**
* Our test CC module adapter
*/
class Companyname_Cashondelivery_Model_createorder 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 = false;
/**
* 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
*/
}
?>
我甚至在app/local/Companyname/Cashondepdelivery/Helper/Data.php 中创建了一个文件
<?php
class Companyname_Cashondelivery_Helper_Data extends Mage_Core_Helper_Abstract
{
}
?>
但当我打开配置>支付方式时，我遇到了一个错误
致命错误：在第516行的C:''examplep''htdocs''magento''app''Mage.php 中找不到类"Mage_Casondelivery_Helper_Data"
有必要有一个Helper类吗。我不知道助手和Data.php
模块需要助手类的原因是system.xml文件中的module参数：
<cashondelivery translate="label" module="cashondelivery">
Magento将module参数传递给Mage::helper()工厂方法。这又完成了cashondelivery/data的类id。
Mage::helper('cashondelivery');
// identical to Mage::helper('cashondelivery/data');
现在，Magento通过查找丢失的节点global/helpers/cashondelivery/class来检查要使用的类前缀。
到目前为止相当简单，但对一些人来说，这可能有点令人困惑
如果Magento找不到辅助类前缀，它会尝试通过在类id前面加mage_并附加_helper来弥补
因此，mage_cashondelivery_helper作为类前缀，mage_cashondelivery_helper_data作为完整类名。
自动加载器将其转换为Mage/Cashondelivery/Helper/Data.php，这是找不到的，因此也是您遇到的异常。
除了创建Companyname_Cashondelivery_Helper_Data类之外，还需要将类组映射添加到config.xml文件中，如下所示：
<global>
<helpers>
<cashondelivery>
<class>Companyname_Cashondelivery_Helper</class>
</cashondelivery>
</helpers>
</global>
这个类组到类前缀的映射就是您所缺少的。