Magento - 可在产品视图页面中从购物车中删除产品的选项

Question

How do I add an option to remove a product from cart within product view page?

Answer 1

To remove an item from your cart by sku, you could create a controller with the below code

$sku = 'xyz';
$cartHelper = Mage::helper('checkout/cart');
$items = $cartHelper->getCart()->getItems();
foreach ($items as $item) {
    if ($item->getProduct()->getSku() == $sku) {
        $cartHelper->getCart()->removeItem($item->getItemId())->save();     
        break;
    }
}

Then on your product view page you could create a ajax/button that post the sku you want to remove

See Magento - Remove Item from Cart by Sku

Create: app/code/local/MagePal/DeleteCartItemBySku/etc/config.xml

<?xml version="1.0"?>
<config>
    <modules>
        <MagePal_DeleteCartItemBySku>
            <version>0.0.1</version>
        </MagePal_DeleteCartItemBySku>
    </modules>
    <frontend>
        <routers>
            <checkout>
                <use>standard</use>
                <args>
                    <modules>
                        <MagePal_DeleteCartItemBySku after="Mage_Checkout">MagePal_DeleteCartItemBySku</MagePal_DeleteCartItemBySku>
                    </modules>
                </args>
            </checkout>
        </routers>
    </frontend>

    <global>
        <models>
            <deletecartitembysku>
                <class>MagePal_DeleteCartItemBySku_Model</class>
            </deletecartitembysku>
        </models>
    </global>
</config>

Create: app/code/local/MagePal/DeleteCartItemBySku/controllers/CartController.php

<?php   
  require_once Mage::getModuleDir('controllers', 'Mage_Checkout') . DS . 'CartController.php';
  //require_once 'Mage/Checkout/controllers/CartController.php';

  class MagePal_DeleteCartItemBySku_CartController extends Mage_Checkout_CartController
  {
    public function removeItemBySkuAction()
    {
        $sku = $this->getRequest()->getParam('sku');
        $cartHelper = Mage::helper('checkout/cart');
        $items = $cartHelper->getCart()->getItems();

        $found = false;
        foreach ($items as $item) {
            if ($item->getProduct()->getSku() == $sku) {
                $cartHelper->getCart()->removeItem($item->getItemId())->save();  
                $found = true;   
                break;
            }
        }

        $message = ($found) ? "Item {$sku} Removed" : "Item {$sku} Not Found";
        Mage::getSingleton('core/session')->addSuccess($message);
        //Mage::getSingleton('core/session')->addError($message);

        $this->_redirectReferer();
    }
  }

?>

Create: app/etc/modules/MagePal_DeleteCartItemBySku.xml

  <?xml version="1.0"?>
    <config>
           <modules>
                  <MagePal_DeleteCartItemBySku>
                          <active>true</active>
                          <codePool>local</codePool>
                  </MagePal_DeleteCartItemBySku>
           </modules>
    </config>

Then your ajax/button url :

domain.com/checkout/cart/removeItemBySku/sku/xyz