Magento 1 – Auto Update Cart Quantity When Changing Quantity

cartmagento-1quantityshopping-cart

In the default cart of Magento, when the customer edit the quantity, he/she needs to press the button to update the quantity.

Is there a way that the cart update the quantity automatically when the user enter a other number in the quantity field?

Best Answer

First edit the cart template /app/design/frontend/{package}/{theme}/template/checkout/cart.phtml and add an id on the form element for easier access. Let's say you add 'id="cart-form"';

Now edit the templates that render the cart items:

app/design/frontend/{package}/{theme}/template/checkout/cart/item/default.phtml
app/design/frontend/{package}/{theme}/template/downloadable/checkout/cart/item/default.phtml

and on the <input> element with the name cart[<?php echo $_item->getId() ?>][qty] add this:

onchange="$('cart-form').submit()"

But I don't recommend doing this. It's really annoying for the users. (at least for me).

Related Solutions

Magento Theme – Change Item Quantity on Mini Cart

It doesn't matter what cart you are talking about. What you need is the URL which is called to change the qty of a product and these url is:

\Mage_Checkout_CartController::updatePostAction()

so the url is:

$this->getUrl('checkout/cart/updatePost');

And then you just need to add the $qouteIitem->getId() and the new $qty in a form. Send the form in the format array(cart => array($quoteItemId => $qty)) to this URL and the quantities are updated.

How to Update Minicart Quantity in Magento

If you take a look at updatePostAction() method of Mage_Checkout_CartController class where your form is submitted.

if (!$this->_validateFormKey()) {
    $this->_redirect('*/*/');
        return;
}

which validate formkey for your form. you have to include form key in your form to validate your form. It checks that actually form is posted not simply method called. please put this line right after opening <form> tag.

echo $this->getBlockHtml('formkey');

It will include form key to your form and your form will work.

Best Answer

Related Solutions

Magento Theme – Change Item Quantity on Mini Cart

How to Update Minicart Quantity in Magento

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