public function updateCart()
{
// see if we have an update for the cart
$product_id = \CI::input()->post('product_id');
$quantity = \CI::input()->post('quantity');
$item = \GC::getCartItem($product_id);
if (!$item) {
return json_encode(['error' => lang('error_product_not_found')]);
}
if (intval($quantity) === 0) {
\GC::removeItem($product_id);
echo json_encode(['success' => true]);
} else {
//create a new list of relevant items
$item->quantity = $quantity;
$insert = \GC::insertItem(['product' => $item, 'quantity' => $quantity]);
echo $insert;
}
//save the cart updates
\GC::saveCart();
return true;
}
