1.建立下面文件
\app\code\local\Lollicupstore\Multiplecoupon\etc\config.xml \app\etc\modules\Lollicupstore_Multiplecoupon.xml \app\code\local\Lollicupstore\Multiplecoupon\controllers\CartController.php \app\code\local\Mage\SalesRule\Model\Quote\Discount.php
2. 添加配置config.xml 文件
\app\code\local\Lollicupstore\Multiplecoupon\etc\config.xml
<?xml version="1.0"?>
<config>
<modules>
<Lollicupstore_Multiplecoupon>
<version>0.1.0</version>
</Lollicupstore_Multiplecoupon>
</modules>
<frontend>
<routers>
<checkout>
<args>
<modules>
<Lollicupstore_Multiplecoupon before="Mage_Checkout">Lollicupstore_Multiplecoupon</Lollicupstore_Multiplecoupon>
</modules>
</args>
</checkout>
</routers>
</frontend>
<!--<admin>-->
<!--<routers>-->
<!--<adminhtml>-->
<!--<args>-->
<!--<modules>-->
<!--<Lollicupstore_Multiplecoupon before="Mage_Adminhtml">-->
<!--Lollicupstore_Multiplecoupon-->
<!--</Lollicupstore_Multiplecoupon>-->
<!--</modules>-->
<!--</args>-->
<!--</adminhtml>-->
<!--</routers>-->
<!--</admin>-->
</config>3. 模块配置
\app\etc\modules\Lollicupstore_Multiplecoupon.xml
<?xml version="1.0"?>
<config>
<modules>
<Lollicupstore_Multiplecoupon>
<active>true</active>
<codePool>local</codePool>
<version>0.1.0</version>
</Lollicupstore_Multiplecoupon>
</modules>
</config>4. 配置购物车控制器：
\app\code\local\Lollicupstore\Multiplecoupon\controllers\CartController.php
<?php
/**
* Created by PhpStorm.
* User: lollicup
* Date: 2019/7/18
* Time: 15:05
*/
require_once 'Mage/Checkout/controllers/CartController.php';
class Lollicupstore_Multiplecoupon_CartController extends Mage_Checkout_CartController
{
/**
* Initialize coupon
*/
public function couponPostAction()
{
/**
* No reason continue with empty shopping cart
*/
if (!$this->_getCart()->getQuote()->getItemsCount()) {
$this->_goBack();
return;
}
$couponCode = (string) $this->getRequest()->getParam('coupon_code');
if ($this->getRequest()->getParam('remove') == 1) {
$couponCode = '';
}
$oldCouponCode = $this->_getQuote()->getCouponCode();
if (!strlen($couponCode) && !strlen($oldCouponCode)) {
$this->_goBack();
return;
}
try {
$codeLength = strlen($couponCode);
$isCodeLengthValid = $codeLength && $codeLength <= Mage_Checkout_Helper_Cart::COUPON_CODE_MAX_LENGTH;
// Combine multiple coupons
$couponFlag = true;
if ($isCodeLengthValid) {
$del = ',';
if ($oldCouponCode) {
if ($oldCouponCode == $couponCode) {
$couponCode = $oldCouponCode;
} else {
$couponCode = $oldCouponCode . $del . $couponCode;
}
}
} else {
$couponCode = '';
}
$this->_getQuote()->getShippingAddress()->setCollectShippingRates(true);
$this->_getQuote()->setCouponCode($couponCode)
->collectTotals()
->save();
if ($codeLength) {
if ($isCodeLengthValid && $couponFlag) {
$this->_getSession()->addSuccess(
$this->__('Coupon code "%s" was applied.', Mage::helper('core')->escapeHtml($couponCode))
);
} else {
$this->_getSession()->addError(
$this->__('Coupon code "%s" is not valid.', Mage::helper('core')->escapeHtml($couponCode))
);
}
} else {
$this->_getSession()->addSuccess($this->__('Coupon code was canceled.'));
}
} catch (Mage_Core_Exception $e) {
$this->_getSession()->addError($e->getMessage());
} catch (Exception $e) {
$this->_getSession()->addError($this->__('Cannot apply the coupon code.'));
Mage::logException($e);
}
$this->_goBack();
}
}5.修改优惠码的计算方式：
\app\code\local\Mage\SalesRule\Model\Quote\Discount.php
<?php
/**
* Magento
*
* NOTICE OF LICENSE
*
* This source file is subject to the Open Software License (OSL 3.0)
* that is bundled with this package in the file LICENSE.txt.
* It is also available through the world-wide-web at this URL:
* http://opensource.org/licenses/osl-3.0.php
* If you did not receive a copy of the license and are unable to
* obtain it through the world-wide-web, please send an email
* to license@magento.com so we can send you a copy immediately.
*
* DISCLAIMER
*
* Do not edit or add to this file if you wish to upgrade Magento to newer
* versions in the future. If you wish to customize Magento for your
* needs please refer to http://www.magento.com for more information.
*
* @category Mage
* @package Mage_SalesRule
* @copyright Copyright (c) 2006-2018 Magento, Inc. (http://www.magento.com)
* @license http://opensource.org/licenses/osl-3.0.php Open Software License (OSL 3.0)
*/
/**
* Discount calculation model
*
* @category Mage
* @package Mage_SalesRule
* @author Magento Core Team <core@magentocommerce.com>
*/
class Mage_SalesRule_Model_Quote_Discount extends Mage_Sales_Model_Quote_Address_Total_Abstract
{
/**
* Discount calculation object
*
* @var Mage_SalesRule_Model_Validator
*/
protected $_calculator;
/**
* Initialize discount collector
*/
public function __construct()
{
$this->setCode('discount');
$this->_calculator = Mage::getSingleton('salesrule/validator');
}
/**
* Collect address discount amount
*
* @param Mage_Sales_Model_Quote_Address $address
* @return Mage_SalesRule_Model_Quote_Discount
*/
public function collect(Mage_Sales_Model_Quote_Address $address)
{
//print_r($address);
Mage_Sales_Model_Quote_Address_Total_Abstract::collect($address);
$quote = $address->getQuote();
$store = Mage::app()->getStore($quote->getStoreId());
$this->_calculator->reset($address);
$items = $this->_getAddressItems($address);
if (!count($items)) {
return $this;
}
$couponCode = $quote->getCouponCode();
$couponArray = explode(',', $couponCode);
//exit('coupon price');
foreach ($couponArray as $couponCode) {
$this->_calculator->init($store->getWebsiteId(), $quote->getCustomerGroupId(), $couponCode);
$this->_calculator->initTotals($items, $address);
$eventArgs = array(
'website_id' => $store->getWebsiteId(),
'customer_group_id' => $quote->getCustomerGroupId(),
'coupon_code' => $couponCode,
);
$address->setDiscountDescription(array());
$items = $this->_calculator->sortItemsByPriority($items);
foreach ($items as $item) {
if ($item->getNoDiscount()) {
$item->setDiscountAmount(0);
$item->setBaseDiscountAmount(0);
} else {
/**
* Child item discount we calculate for parent
*/
if ($item->getParentItemId()) {
continue;
}
$eventArgs['item'] = $item;
Mage::dispatchEvent('sales_quote_address_discount_item', $eventArgs);
if ($item->getHasChildren() && $item->isChildrenCalculated()) {
foreach ($item->getChildren() as $child) {
$this->_calculator->process($child);
$eventArgs['item'] = $child;
Mage::dispatchEvent('sales_quote_address_discount_item', $eventArgs);
$this->_aggregateItemDiscount($child);
}
} else {
$this->_calculator->process($item);
$this->_aggregateItemDiscount($item);
}
}
}
/**
* process weee amount
*/
if (Mage::helper('weee')->isEnabled() && Mage::helper('weee')->isDiscounted($store)) {
$this->_calculator->processWeeeAmount($address, $items);
}
/**
* Process shipping amount discount
*/
$address->setShippingDiscountAmount(0);
$address->setBaseShippingDiscountAmount(0);
if ($address->getShippingAmount()) {
$this->_calculator->processShippingAmount($address);
$this->_addAmount(-$address->getShippingDiscountAmount());
$this->_addBaseAmount(-$address->getBaseShippingDiscountAmount());
}
$this->_calculator->prepareDescription($address);
}
return $this;
}
/**
* Aggregate item discount information to address data and related properties
*
* @param Mage_Sales_Model_Quote_Item_Abstract $item
* @return Mage_SalesRule_Model_Quote_Discount
*/
protected function _aggregateItemDiscount($item)
{
$this->_addAmount(-$item->getDiscountAmount());
$this->_addBaseAmount(-$item->getBaseDiscountAmount());
return $this;
}
/**
* Add discount total information to address
*
* @param Mage_Sales_Model_Quote_Address $address
* @return Mage_SalesRule_Model_Quote_Discount
*/
public function fetch(Mage_Sales_Model_Quote_Address $address)
{
$amount = $address->getDiscountAmount();
if ($amount != 0) {
$description = $address->getDiscountDescription();
if (strlen($description)) {
$title = Mage::helper('sales')->__('Discount (%s)', $description);
} else {
$title = Mage::helper('sales')->__('Discount');
}
$address->addTotal(array(
'code' => $this->getCode(),
'title' => $title,
'value' => $amount
));
}
return $this;
}
}6.