Dalam modul khusus Anda, tambahkan berikut ini ke config.xml:
<models>
<salesrule>
<rewrite>
<quote_discount>Namespace_Module_Rewrite_SalesRule_Model_Quote_Discount</quote_discount>
</rewrite>
</salesrule>
</models>
<frontend>
<routers>
<checkout>
<args>
<modules>
<Namespace_Module before="Mage_Checkout">Namespace_Module_Checkout</Namespace_Module>
</modules>
</args>
</checkout>
</routers>
</frontend>
Yang pertama adalah penulisan ulang Mage_SalesRule_Model_Quote_DiscountuntukNamespace_Module_Rewrite_SalesRule_Model_Quote_Discount
Yang kedua adalah controller yang kelebihan beban Mage_Checkout_CartController
Selanjutnya tambahkan file berikut app/code/community/Namespace/Module/controllers/Checkout/CartController.php
dan masukkan kode berikut:
<?php
require_once 'Mage/Checkout/controllers/CartController.php';
class Namespace_Module_Checkout_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();
}
}
Anda akan melihat saya menambahkan bagian untuk menggabungkan kode kupon yang dibatasi oleh ",". Ini jelas dapat lebih disempurnakan dan Anda mungkin ingin menambahkan pengecekan tambahan dll, tetapi kode ini harus langsung berfungsi.
Dan akhirnya kita perlu menambahkan bagian yang melakukan semua keajaiban. Tambahkan fileapp/code/community/Namespace/Module/Rewrite/SalesRule/Model/Quote/Discount.php
dan tambahkan konten:
<?php
class Namespace_Module_Rewrite_SalesRule_Model_Quote_Discount extends Mage_SalesRule_Model_Quote_Discount
{
/**
* 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 $address)
{
Mage_Sales_Model_Quote_Address_Total_Abstract::collect($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);
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;
}
}
Pada dasarnya, yang dilakukan adalah memecah kupon, memutus setiap kode kupon, menghitung dan memperbarui total kuotasi.
Untuk menguji, saya telah menyiapkan 2 aturan keranjang belanja:
- test 1 - diskon 10% harga produk - Hentikan Aturan Lebih Lanjut Memproses: No
- test 2 - diskon 10% harga produk - Hentikan Aturan Selanjutnya Memproses: No
Tidak ada kupon:
Menambahkan tes kupon 1:
Menambahkan tes kupon 2
Saya telah menguji dengan diskon jumlah tetap dan ini berfungsi seperti yang diharapkan juga.
Dan seperti yang saya katakan, Anda mungkin perlu menambahkan pemeriksaan tambahan, mungkin untuk duplikat, tetapi di sinilah Anda akan mulai. Untuk frontend, Anda dapat menambahkan beberapa logika pisah kode namun Anda sukai atau biarkan apa adanya.
