public static void Auto_Cancel()
        {
            using (var db = new DBConnection())
            {
                var reservation = db.DbReservation.Where(item => item.checkin == false && item.cancel == false).ToList();
                for (int i = 0; i < reservation.Count; i++)
                {
                    int time_count = DateTime.Now.TimeOfDay.Subtract(reservation[i].time_create.TimeOfDay).Hours;
                    /* AUTO DELETE RESERVATION AFTER 12 HOURS WITH TABLE 10 SEATS */
                    if (reservation[i].seats == 10 && time_count > 12)
                    {
                        reservation[i].cancel = true;
                        MemberShipAction.Decreate_Score(reservation[i].customer_telephone, 15);
                        db.Entry(reservation[i]).State = EntityState.Modified;
                        db.SaveChanges();
                    }
                    /* AUTO DELETE RESERVATION AFTER 5 HOURS WITH TABLE 5 SEATS  */
                    if (reservation[i].seats == 5 && time_count > 5)
                    {
                        reservation[i].cancel = true;
                        MemberShipAction.Decreate_Score(reservation[i].customer_telephone, 10);
                        db.Entry(reservation[i]).State = EntityState.Modified;
                        db.SaveChanges();
                    }
                }

                db.Dispose();
            }
        }
 public static void Create_Reservation(string Customer_Phone, int Id_Table)
 {
     using (var db = new DBConnection())
     {
         db.DbReservation.Add(new TableReservation {
             customer_telephone = Customer_Phone,
             id_table           = Id_Table,
             flag        = false,
             cancel      = false,
             seats       = TableAction.Find_Table_By_ID(Id_Table).seats,
             fullname    = MemberShipAction.Find_MemberShip_By_Phone(Customer_Phone).fullname,
             time_create = DateTime.Now,
             checkin     = false
         });
         db.SaveChanges();
         db.Dispose();
     }
 }