public JsonResult Purchase(int?drink_id)
{
if (drink_id == null || drink_id < 1)
{
return(Json(new { success = false, message = "Неправильный код напитка", cash = Settings.AppSettings.Cash }, JsonRequestBehavior.AllowGet));
}
Core.Drink drink = Core.Drink.GetEntityById(drink_id.Value);
if (drink.price > Settings.AppSettings.Cash)
{
return(Json(new { success = false, message = "Недостаточно средств", cash = Settings.AppSettings.Cash }, JsonRequestBehavior.AllowGet));
}
// Спишем средства со счета
Settings.AppSettings.Cash -= drink.price;
// Запишем продажу в БД
Core.Sold sold = new Sold();
sold.drink_id = drink_id.Value;
sold.dt = DateTime.Now;
sold.Save();
// Уменьшим количество товара в хранилище
Core.Store store = Core.Store.GetEntityById(drink_id.Value);
store.qty--;
store.Save();
return(Json(new { success = true, message = "success", cash = Settings.AppSettings.Cash }, JsonRequestBehavior.AllowGet));
}