protected void updateShippingCalculation(
ActionRequest actionRequest, ShoppingPreferences preferences) throws Exception {
String shippingFormula = ParamUtil.getString(actionRequest, "shippingFormula");
String[] shipping = new String[5];
for (int i = 0; i < shipping.length; i++) {
shipping[i] = String.valueOf(ParamUtil.getDouble(actionRequest, "shipping" + i));
}
preferences.setShippingFormula(shippingFormula);
preferences.setShipping(shipping);
}
