how magento 1.9.2.4 update the cart total (Need to understand functionality to make changes)

[Shahgsahab1]

Please tell me How your framework update the cart Grand total on the fly.As I noticed that it is embedding a span element when executing this code.

app/design/frontend/(mywebfolder)/default/template/page/html/minicart.phtml

$cart_summary_qty = Mage::getSingleton('checkout/cart')->getSummaryQty();$cart_summary_qty = !empty($cart_summary_qty)?$cart_summary_qty:0;$cart_subtotal = Mage::helper('ves_tempcp')->getCartSubtotal();$cart_total = Mage::helper("ves_tempcp")->__("%s ITEM - %s");$cart_total = sprintf($cart_total, $cart_summary_qty, $cart_subtotal);

?>

<div id="cart" class="clearfix">
        <div class="heading">
            <div class="cart-inner">
                <a href="javascript&colon;;" class="shopping-cart-icon"> 
                    <span class="hidden">&nbsp;</span>
                </a>
                <div class="cart-total">
                    <h3>Shopping Cart</h3>
                    <a href="javascript&colon;;" id="cart-total"><?php echo $cart_total; ?> </a>
                </div>
            </div>
        </div>

What i noticed that this part of code is updating the cart without refresh or say it as with ajax call.

<a href="javascript&colon;;" id="cart-total"><?php echo $cart_total; ?> </a>

what I wants to know is that , I have spend a whole day to search the file from where this piece of code is generating the span element because I wants to customize it but failed.I am unable to find the source from where it is generated like this in inspect element.

<a href="javascript&colon;;" id="cart-total">3 ITEM - <span class="price">$9.40</span> </a>

I want to use the total amount/$cart_total into another element but the problem i got is that I am unable get update on the fly on the other element , what I think that it is because of id attribute used instead of class to update the cart, so unable to update on the fly/with ajax on the same page with similar ids.So what is the solution to this problem.how can I use the total amount again on the same page and upadate on the fly as my previous element is doing.

[Gabriel Guarino]

Hi @Shahgsahab1,

Unfortunately, the code that you provided as example is not the default from Magento 1.9.2.4.

Since that is a custom solution that has been built in your store, there is no way to tell exactly the location of the code that generates those values.

Have you installed a custom extension for the checkout or are there major customizations in your shopping cart page?

Best regards.
Gabriel

[htpvikas]

Hi @Shahgsahab1

Magento have 'collect' function to calculate G.T. in

Mage_Sales_Model_Quote_Address_Total_Abstract

if you wants to do some stuff you can override the collect method.

If you wants to get value of grand total here is the code :

$quote = Mage::getModel('checkout/session')->getQuote();
$quoteData= $quote->getData();
$grandTotal=$quoteData['grand_total'];

[Shahgsahab1]

Thanks for your response.

Yes there is a lot of customization in shopping cart.And I have found the Jquery function which is called from ajax when user add an item to the cart.That ajax call is doing a trick to update it on the fly.