我将看看 catalog_product_get_final_price ，有关示例使用情况，请参阅 Mage_CatalogRule_Model_Observer :: processFrontFinalPrice（） 。请注意，在此事件之后处理基于期权的定价;请参阅 Mage_Catalog_Model_Product_Type_Price :: getFinalPrice（） 和 Mage_Catalog_Model_Product_Type_Configurable_Price :: getFinalPrice（）

请记住，定制此功能需要大量的测试，包括不同的报价状态，客户状态，产品类型等。例如，考虑添加到购物车中的产品第一次，然后从购物车更新其数量。通常有必要在几个方法/观察者中实现逻辑来处理所有排列。

客户未登录时，CE1.7中触发的事件的完整列表，新增购物车，简单产品：

controller_front_init_routers

• Mage_Cms_Controller_Router :: initControllerRouters（）

controller_action_predispatch

• Mage_Log_Model_Visitor :: initByRequest（）


• Mage_PageCache_Model_Observer :: processPreDispatch（）


• Mage_Persistent_Model_Observer :: emulateQuote（）


• Mage_Persistent_Model_Observer_Session :: renewCookie（）


• Mage_Persistent_Model_Observer： ：checkExpirePersistentQuote（）


• Mage_Persistent_Model_Observer :: emulateCustomer（）

catalog_product_load_after

• Mage_CatalogInventory_Model_Observer :: addInventoryData（）

custom_quote_process

• Mage_Persistent_Model_Observer :: setLoadPersistentQuote（）

sales_quote_config_get_product_attributes

• Mage_SalesRule_Model_Observer :: addProductAttributes（）

prepare_catalog_product_collection_prices

• Mage_CatalogRule_Model_Observer :: prepareCatalogProductCollectionPrices ）

sales_quote_item_collection_products_after_load

• Mage_CatalogInventory_Model_Observer :: addInventoryDataToCollection（）

sales_quote_item_qty_set_after

• Mage_CatalogInventory_Mo del_Observer :: checkQuoteItemQty（）

sales_quote_collect_totals_before

• Mage_Tax_Model_Observer :: quoteCollectTotalsBefore（）

sales_quote_address_collect_totals_before

• Mage_Sales_Model_Observer :: changeQuoteCustomerGroupId

sales_quote_address_collect_totals_after

• Mage_Sales_Model_Observer :: restoreQuoteCustomerGroupId（）

sales_quote_address_collect_totals_before

• Mage_Sales_Model_Observer :: changeQuoteCustomerGroupId（）

catalog_product_get_final_price

• Mage_CatalogRule_Model_Observer :: processFrontFinalPrice（）

sales_ quote_address_collect_totals_after

• Mage_Sales_Model_Observer :: restoreQuoteCustomerGroupId（）

sales_quote_collect_totals_after

• code> Mage_Sales_Model_Observer :: setQuoteCanApplyMsrp（）

sales_quote_save_before / p>

• Mage_Persistent_Model_Observer :: setQuotePersistentData（）






sales_quote_save_after






• Mage_Checkout_Model_Observer :: salesQuoteSaveAfter（）


• Mage_Log_Model_Visitor :: bindQuoteCreate（）






sales_quote_item_save_before






• Mage_Reports_Model_Event_Observer :: checkoutCartAddProduct（）






checkout_cart_add_product_complete






• Mage_Wishlist_Model_Observer :: processAddToCart（）






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controller_front_send_response_after






• code> Mage_Persistent_Model_Observer_Session :: synchronizePersistentInfo（）





I want to calculate price based on the customer selected options. For example,there are two configurable attributes length,width

Before adding product to cart,I want to modify price based on selected length & width

$finalPrice=$rrp+($length*$width)

Is there any event available to achieve this?

I would look at catalog_product_get_final_price, and for an example usage, see Mage_CatalogRule_Model_Observer::processFrontFinalPrice(). Note that options-based pricing is processed after this event; see Mage_Catalog_Model_Product_Type_Price::getFinalPrice() and Mage_Catalog_Model_Product_Type_Configurable_Price::getFinalPrice().

Please keep in mind that customizing this functionality requires lots of testing with different quote states, customer states, product types, etc. For example, consider a product which is added to the cart for the first time, then having its quantity updated from the cart. Often it is necessary to implement logic in a couple of methods/observers to handle all permutations.

Full list for events fired in CE1.7 when customer not logged in, new cart, simple product:

controller_front_init_routers

• Mage_Cms_Controller_Router::initControllerRouters()

controller_action_predispatch

• Mage_Log_Model_Visitor::initByRequest()
• Mage_PageCache_Model_Observer::processPreDispatch()
• Mage_Persistent_Model_Observer::emulateQuote()
• Mage_Persistent_Model_Observer_Session::renewCookie()
• Mage_Persistent_Model_Observer::checkExpirePersistentQuote()
• Mage_Persistent_Model_Observer::emulateCustomer()

catalog_product_load_after

• Mage_CatalogInventory_Model_Observer::addInventoryData()

custom_quote_process

• Mage_Persistent_Model_Observer::setLoadPersistentQuote()

sales_quote_config_get_product_attributes

• Mage_SalesRule_Model_Observer::addProductAttributes()

prepare_catalog_product_collection_prices

• Mage_CatalogRule_Model_Observer::prepareCatalogProductCollectionPrices()

sales_quote_item_collection_products_after_load

• Mage_CatalogInventory_Model_Observer::addInventoryDataToCollection()

sales_quote_item_qty_set_after

• Mage_CatalogInventory_Model_Observer::checkQuoteItemQty()

sales_quote_collect_totals_before

• Mage_Tax_Model_Observer::quoteCollectTotalsBefore()

sales_quote_address_collect_totals_before

• Mage_Sales_Model_Observer::changeQuoteCustomerGroupId()

sales_quote_address_collect_totals_after

• Mage_Sales_Model_Observer::restoreQuoteCustomerGroupId()

sales_quote_address_collect_totals_before

• Mage_Sales_Model_Observer::changeQuoteCustomerGroupId()

catalog_product_get_final_price

• Mage_CatalogRule_Model_Observer::processFrontFinalPrice()

sales_quote_address_collect_totals_after

• Mage_Sales_Model_Observer::restoreQuoteCustomerGroupId()

sales_quote_collect_totals_after

• Mage_Sales_Model_Observer::setQuoteCanApplyMsrp()

sales_quote_save_before

• Mage_Persistent_Model_Observer::setQuotePersistentData()

sales_quote_save_after

• Mage_Checkout_Model_Observer::salesQuoteSaveAfter()
• Mage_Log_Model_Visitor::bindQuoteCreate()

sales_quote_item_save_before

• Mage_Reports_Model_Event_Observer::checkoutCartAddProduct()

checkout_cart_add_product_complete

• Mage_Wishlist_Model_Observer::processAddToCart()

controller_action_postdispatch

• Mage_Log_Model_Visitor::saveByRequest()

controller_front_send_response_after

• Mage_Persistent_Model_Observer_Session::synchronizePersistentInfo()