Firstly, we have to create a custom module.
Then, we have to declare a file named events.xml to catch an event that takes place after a product is added to the cart.
Create events.xml file at the following path Magemonkeys/CustomPriceInCart/etc/frontend/events.xml
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<?xml version="1.0"?> <config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Event/etc/events.xsd"> <event name="checkout_cart_product_add_after"> <observer name="CustomPriceInCart" instance="Magemonkeys\CustomPriceInCart\Observer\CustomPriceInCart" /> </event> </config> |
The next step is to create the observer to make changes to the price.
Create CustomPriceInCart.php file at the following path Magemonkeys/CustomPriceInCart/Observer/CustomPriceInCart.php
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<?php namespace Magemonkeys\CustomPriceInCart\Observer; use Magento\Framework\Event\ObserverInterface; use Magento\Framework\App\RequestInterface; class CustomPriceInCart implements ObserverInterface { public function execute(\Magento\Framework\Event\Observer $observer) { $item = $observer->getEvent()->getData('quote_item'); $item = ($item->getParentItem() ? $item->getParentItem() : $item); // here your custom price goes $customPrice = 101; $item->setCustomPrice($customPrice); $item->setOriginalCustomPrice($customPrice); $item->getProduct()->setIsSuperMode(true); } } |
By turning on super mode to the product through function setIsSuperMode(true), we can stop the system generating the price.
Then we can set the custom prices for products in the cart.
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