3

I want to get the product SKU while removing it from the cart or when emptying the cart.

7

Besides the controller pre|post dispatch events that don't do you much good, though you can still use them controller_action_predispatch_checkout_cart_delete and controller_action_postdispatch_checkout_cart_delete, you can use this one sales_quote_remove_item.

You can get the sku like this:

public function deleteItem($observer) 
{
    $item = $observer->getEvent()->getQuoteItem();
    $sku = $item->getSku();
    //do something with $sku
}

For the empty cart action you will have to use the general controller event controller_action_predispatch_checkout_cart_updatePost. And you can get the skus like this:

public function emptyCart($observer) 
{
    $action = Mage::app()->getRequest()->getParam('update_cart_action');
    if ($action == 'empty_cart') {
        $items = Mage::getSingleton('checkout/session')->getQuote()->getAllVisibleItems();
        $skus = array();
        foreach ($items as $item) {
            $skus[] = $item->getSku();
        }
        //do something with $skus
    } 
}

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