Using web services on shipping cost calculation

In order to keep the code clear in the module's main class, we will create a controller for shipping cost calculation:

public function getOrderShippingCost($params, $shipping_cost)
{
  $controller = $this->getHookController('getOrderShippingCost');
  return $controller->run($params, $shipping_cost);
}

As you can see, we've passed the two parameters available in the method to the controller. The two parameters are:

• $params: In this case (the getOrderShippingCost function), $params is in fact the Cart object

• $shipping_cost: This parameter corresponds to the shipping cost calculated by PrestaShop, which is the addition of the shipping handling fee (if the shipping_handling parameter of the carrier has been set to true, which is the case) and the price range / weight range cost (if the need_range parameter has been set to true, which is the case too)

  Note

  At this state, except if you set the shipping handling fee in the administration panel,...