I can share the script and basic setup for that specific system, but you will of course need to modify the script for your needs - for one, you will need to add code to do a SQL query from the database to retrieve the price. You can probably use the sql.Query() function.
Read more about JScript helper functions available here:
Script:
function getPrice(menuItemId) {
var newPrice = null;
var f = 'file://///POS1/Samba/drinklist.json';
if (menuItemId > 0) {
var data = web.Download(f);
var priceList = JSON.parse(data);
var checkPrice = eval('priceList.id' + menuItemId);
if (checkPrice) {
newPrice = checkPrice;
}
}
return newPrice;
}
Action:
Rule:
