Add extra fee when checkout based on state

[ruslyrossi]

Hi,

 

this is my first experience using prestashop so im not sure how to do it, ok i want to add extra fees when customer checkout, this fee base on states(actually just 2 states) :

 

if customer delivery address(states) match with states ABC and "total products price" is more than $88 then add $10 to shipping.

 

Right now im able to update "Total shipping", but i cant update "Total"

 

Path : controllers/ParentOrderController.php  LIne +- 280

self::$smarty->assign($summary);
self::$smarty->assign(array(
    'token_cart' => Tools::getToken(false),
    'isVirtualCart' => self::$cart->isVirtualCart(),
    'productNumber' => self::$cart->nbProducts(),
    'voucherAllowed' => Configuration::get('PS_VOUCHERS'),
    'shippingCost' => self::$cart->getOrderTotal(true, Cart::ONLY_SHIPPING) + 10,  // $10 is extra fee
    'shippingCostTaxExc' => self::$cart->getOrderTotal(false, Cart::ONLY_SHIPPING) + 10,   // $10 is extra fee

Result should be something like this http://i.imgur.com/TKARRK7.jpg

 

PS version : 1.4.4.1

Edited September 24, 2013 by ruslyrossi (see edit history)