// 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, FlightsForPeriodSimpleDataOrdinals ordinals)
{
if (!reader.IsDBNull(ordinals.FlightId))
{
FlightId = reader.GetGuid(ordinals.FlightId);
}
if (!reader.IsDBNull(ordinals.FromDateTime))
{
FromDateTime = reader.GetDateTime(ordinals.FromDateTime);
}
if (!reader.IsDBNull(ordinals.UntilDateTime))
{
UntilDateTime = reader.GetDateTime(ordinals.UntilDateTime);
}
}
/// <summary>Get flights for a duration</summary>
/// <cardinality>Many</cardinality>
/// <generatelayer>DataAccessLayer</generatelayer>
public static List <FlightsForPeriodSimpleData> FlightsForPeriodSimple(
DateTime fromDateTime,
DateTime untilDateTime
)
{
var ret = new List <FlightsForPeriodSimpleData>();
string sql = @"
select
fl.flight_id
,fl.from_date_time
,fl.until_date_time
/*
,( select count(*)
from flight_segment as fs
inner join booking_flight_segment as bfs on bfs.flight_segment_id = fs.flight_segment_id
and bfs.became_booking_flight_segment_id is null
where fs.flight_id = fl.flight_id
) as flights_booked_count
,( select
top 1 fe.new_date_time
from flight_event as fe
where fe.flight_id = fl.flight_id
and fe.date_time_type_rcd = dbo.ref('date_time_type_ref.PD')
order by fe.date_time desc
) as planned_departure_date_time
*/
from flight as fl
--realwhere
where (fl.from_date_time between @from_date_time and @until_date_time
or fl.until_date_time between @from_date_time and @until_date_time)
and fl.became_flight_id is null
order by fl.from_date_time
";
using (var conn = new SqlConnection(Conn.ConnectionString)) {
conn.Open();
conn.BeginTransaction(IsolationLevel.ReadUncommitted).Commit();
using (var command = new SqlCommand(sql, conn)) {
command.Parameters.Add("@from_date_time", SqlDbType.DateTime).Value = fromDateTime;
command.Parameters.Add("@until_date_time", SqlDbType.DateTime).Value = untilDateTime;
Logging log = Logging.PerformanceTimeStart("SolutionNorSolutionPort.DataAccessLayer.FlightSearch.FlightsForPeriodSimple");
IDataReader reader = command.ExecuteReader(CommandBehavior.SingleResult);
log.PerformanceTimeStop(sql, command);
var ordinals = new FlightsForPeriodSimpleDataOrdinals(reader);
while (reader.Read())
{
var data = new FlightsForPeriodSimpleData();
data.Populate(reader, ordinals);
ret.Add(data);
}
reader.Close();
}
return(ret);
}
}
