// use ordinals to speed up access to DataReader // links: // crud definition: https://en.wikipedia.org/wiki/Create,_read,_update_and_delete // docLink: http://sql2x.org/documentationLink/327451c3-64a8-4de8-b359-76742d634497 // parameters: // reader: IDataReader from SQLClient public void Populate(IDataReader reader, PassengersOnBookingDataOrdinals ordinals) { if (!reader.IsDBNull(ordinals.PassengerId)) { PassengerId = reader.GetGuid(ordinals.PassengerId); } if (!reader.IsDBNull(ordinals.PassengerName)) { PassengerName = reader.GetString(ordinals.PassengerName); } if (!reader.IsDBNull(ordinals.PassengerTypeName)) { PassengerTypeName = reader.GetString(ordinals.PassengerTypeName); } }
/// <summary>Get all passengers on a booking</summary> /// <cardinality>Many</cardinality> public List <PassengersOnBookingData> PassengersOnBooking(Guid bookingId) { var ret = new List <PassengersOnBookingData>(); string sql = @" select pa.passenger_id ,pa.passenger_name ,ptr.passenger_type_name from passenger as pa inner join passenger_type_ref as ptr on ptr.passenger_type_rcd = pa.passenger_type_rcd inner join booking_passenger as bp on bp.passenger_id = pa.passenger_id where bp.booking_id = @booking_id "; using (var conn = new SqlConnection(Conn.ConnectionString)) { conn.Open(); conn.BeginTransaction(IsolationLevel.ReadUncommitted).Commit(); using (var command = new SqlCommand(sql, conn)) { command.Parameters.Add("@booking_id", SqlDbType.UniqueIdentifier).Value = bookingId; Logging log = Logging.PerformanceTimeStart("SolutionNorSolutionPort.DataAccessLayer.PassengerSearch.PassengersOnBooking"); IDataReader reader = command.ExecuteReader(CommandBehavior.SingleResult); log.PerformanceTimeStop(sql, command); var ordinals = new PassengersOnBookingDataOrdinals(reader); while (reader.Read()) { var data = new PassengersOnBookingData(); data.Populate(reader, ordinals); ret.Add(data); } reader.Close(); } return(ret); } }