我们正在维护一个基于Magento的网上商店，其中包含从Mindstretch安装的支付模块。我们使用“货到付款”选项，但问题是模块在订单发送时会创建发票。但是，当选择“现金提取”时，它不应创建发票。这应该只在他们真正拿起它时才会发生。所以我们需要禁用发票的制作。问题是我不知道从哪里开始寻找。在config.xml和system.xml文件下面
CONFIG.XML：
<?xml version="1.0" encoding="UTF-8"?>
<config>
<modules>
<Mindstretch_Contant>
<version>0.1.0</version>
</Mindstretch_Contant>
</modules>
<global>
<helpers>
<contant>
<class>Mindstretch_Contant_Helper</class>
</contant>
<!--
<payment>
<rewrite>
<data>Mindstretch_Contant_Helper_Data</data>
</rewrite>
</payment>
-->
</helpers>
<models>
<contant>
<class>Mindstretch_Contant_Model</class>
</contant>
</models>
<adminhtml>
<translate>
<modules>
<Mindstretch_Contant>
<files>
<default>Mindstretch_Backend.csv</default>
</files>
</Mindstretch_Contant>
</modules>
</translate>
</adminhtml>
<resources>
<contant_setup>
<setup>
<module>Mindstretch_Contant</module>
</setup>
<connection>
<use>core_setup</use>
</connection>
</contant_setup>
<contant_write>
<connection>
<use>core_write</use>
</connection>
</contant_write>
<contant_read>
<connection>
<use>core_read</use>
</connection>
</contant_read>
</resources>
</global>
<frontend>
<routers>
<contant>
<use>standard</use>
<args>
<module>Mindstretch_Contant</module>
<frontName>Contant</frontName>
</args>
</contant>
</routers>
</frontend>
<default>
<payment>
<contant>
<active>0</active>
<model>contant/paymentLogic</model>
<order_status>pending</order_status>
<title>Contant</title>
<api_key>46</api_key>
<api_secret>46</api_secret>
<payment_action>authorize_capture</payment_action>
<allowspecific>0</allowspecific>
</contant>
</payment>
</default>
</config>
的System.Xml：
<?xml version="1.0"?>
<config>
<sections>
<payment>
<groups>
<contant translate="label" module="paygate">
<label>Contant</label>
<sort_order>601</sort_order>
<show_in_default>1</show_in_default>
<show_in_website>1</show_in_website>
<show_in_store>0</show_in_store>
<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>
<order_status translate="label">
<label>New order status</label>
<frontend_type>select</frontend_type>
<source_model>contant/paid</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>
<allowspecific translate="label">
<label>Payment from applicable countries</label>
<frontend_type>allowspecific</frontend_type>
<sort_order>50</sort_order>
<source_model>adminhtml/system_config_source_payment_allspecificcountries</source_model>
<show_in_default>1</show_in_default>
<show_in_website>1</show_in_website>
<show_in_store>0</show_in_store>
</allowspecific>
<specificcountry translate="label">
<label>Payment from Specific countries</label>
<frontend_type>multiselect</frontend_type>
<sort_order>51</sort_order>
<source_model>adminhtml/system_config_source_country</source_model>
<show_in_default>1</show_in_default>
<show_in_website>1</show_in_website>
<show_in_store>0</show_in_store>
</specificcountry>
<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>
<sort_order translate="label">
<label>Sort order</label>
<frontend_type>text</frontend_type>
<sort_order>999</sort_order>
<show_in_default>1</show_in_default>
<show_in_website>1</show_in_website>
<show_in_store>1</show_in_store>
</sort_order>
<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>
</contant>
</groups>
</payment>
</sections>
</config>
PAYMENTLOGIC.PHP：
<?php
class Mindstretch_Contant_Model_PaymentLogic extends Mage_Payment_Model_Method_Abstract
{
/**
* Set forced canCreditmemo flag
*
* @param Varien_Event_Observer $observer
* @return Mage_Payment_Model_Observer
*/
protected $_code = 'contant';
protected $_isGateway = true;
protected $_canAuthorize = true;
protected $_canCapture = true;
protected $_canCapturePartial = false;
protected $_canRefund = true;
protected $_canVoid = true;
protected $_canUseInternal = true;
protected $_canUseCheckout = true;
protected $_canUseForMultishipping = true;
protected $_canSaveCc = false;
/*public function authorize (Varien_Object $payment, $amount)
{
}
public function capture (Varien_Object $payment, $amount)
{
}
public function refund (Varien_Object $payment, $amount)
{
}
*/
public function void (Varien_Object $payment)
{
}
}
?>
希望有人可以给我一些指导方向。感谢