Magento

Qty dropdown in cart (Qtys come from tier prices)

if product has tier prices we can create dropdown in cart .. otherwise there will be standart QTY box
first update default.phtml … in checkout/cart/item/.. with code below

getProductId();

$_product = Mage::getModel('catalog/product')->load($ID);

$prices = $_product->getTierPrice();
if($prices!=NULL){
echo '';
?>
size="4" title="__('Qty') ?>" class="input-text input-block-level qty" maxlength="12" />

size="4" title="__('Qty') ?>" class="input-text input-block-level qty" maxlength="12" />

and at the bottom add this

next.. update cart.phtml in checkout/cart.phtml
find button “Update Shopping Cart” and add id=”update_cart”