Beispiel #1
0
        public async System.Threading.Tasks.Task <IActionResult> NewTransmitter(Transmitter transmitter_temp)
        {
            //handling user-may-occur mistakes
            if (transmitter_temp.modulation_type.StartsWith("Select"))
            {
                ViewData["message"] = "Please fill the modulation type";
                return(View(transmitter_temp));
            }

            //get session id (we will use it when updating data and handling errors)
            sessionID_s = HttpContext.Session.GetString("Session");
            sessionID   = Guid.Parse(sessionID_s);
            Data current = new Data();

            foreach (KeyValuePair <Guid, Data> sds in Program.data)
            {
                if (sds.Key.Equals(sessionID))
                {
                    current = sds.Value;
                }
            }

            //If the transmitter name is null we give a default name that specifies its number
            String def_name = null;
            //because we change the default name after the Radar added we we should keep it in mind to it is a default given name
            bool isNamed = false;

            if (String.IsNullOrEmpty(transmitter_temp.name))
            {
                int count = 0;

                try
                {
                    count = await _session.GetTransmitterNumber();
                }
                catch (Exception e)
                {
                    // log exception here
                    ViewData["message"] = e.Message.ToString() + " Error";
                    await _session.Rollback();

                    count = -1;
                    return(View(transmitter_temp));
                }
                finally
                {
                    _session.CloseTransaction();
                }
                def_name = "Transmitter " + count;
                //keep it in mind
                isNamed = true;
            }
            else
            {
                def_name = transmitter_temp.name;
            }

            Guid        key         = Guid.NewGuid();
            Transmitter transmitter = new Transmitter(key, def_name, transmitter_temp.modulation_type, transmitter_temp.max_frequency, transmitter_temp.min_frequency, transmitter_temp.power);

            transmitter.Isnamed = isNamed;

            //save our transmitter to database
            try
            {
                _session.BeginTransaction();
                await _session.SaveTransmitter(transmitter);

                await _session.Commit();
            }
            catch (Exception e)
            {
                // log exception here
                ViewData["message"] = e.Message.ToString() + " Error";
                await _session.Rollback();

                return(View(transmitter));
            }
            finally
            {
                _session.CloseTransaction();
            }

            //Add our transmitter to Data model and update the dictionary so we can use its id when we're adding Radar entity
            current.Transmitter = transmitter;

            return(RedirectToAction("Preliminary", "Antenna"));
        }