public List <HvdcPoleForeign> ExtractHvdcPoleForeign(string oracleConnString)
{
using (OracleConnection con = new OracleConnection(oracleConnString))
{
using (OracleCommand cmd = con.CreateCommand())
{
try
{
con.Open();
cmd.BindByName = true;
cmd.CommandText = @"select ID, POLE_NAME, POLE_ID, FK_SUBSTATION, LOCATION_ID, POLE_TYPE,
VOLTAGE_LEVEL, MAX_FIRING_ANGLE_DEG, MIN_FIRING_ANGLE_DEG, DATETIME_OF_COMMISSIONING,
DATETIME_OF_COD, DATETIME_OF_DECOMMISSIONING from REPORTING_WEB_UI_UAT.HVDC_POLE
where :id=1 and POLE_NAME IS NOT NULL and ID IS NOT NULL";
// Assign id parameter
OracleParameter id = new OracleParameter("id", 1);
cmd.Parameters.Add(id);
//Execute the command and use DataReader to display the data
OracleDataReader reader = cmd.ExecuteReader();
List <HvdcPoleForeign> hvdcPolesForeign = new List <HvdcPoleForeign>();
while (reader.Read())
{
HvdcPoleForeign hvdcPoleForeign = new HvdcPoleForeign();
hvdcPoleForeign.WebUatId = reader.GetInt32(0);
hvdcPoleForeign.Name = reader.GetString(1);
hvdcPoleForeign.PoleNumber = reader.GetInt32(2);
hvdcPoleForeign.SubstationWebUatId = reader.GetInt32(3);
hvdcPoleForeign.StateWebUatId = reader.GetInt32(4);
hvdcPoleForeign.PoleType = reader.GetString(5);
hvdcPoleForeign.VoltLevelWebUatId = reader.GetInt32(6);
hvdcPoleForeign.MaxFiringAngleDegrees = reader.GetDecimal(7);
hvdcPoleForeign.MinFiringAngleDegrees = reader.GetDecimal(8);
hvdcPoleForeign.CommDate = reader.GetDateTime(9);
hvdcPoleForeign.CodDate = reader.GetDateTime(10);
hvdcPoleForeign.DeCommDate = reader.GetDateTime(11);
hvdcPolesForeign.Add(hvdcPoleForeign);
}
reader.Dispose();
return(hvdcPolesForeign);
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
return(null);
}
}
}
}
public async Task <HvdcPole> LoadSingleAsync(WRLDCWarehouseDbContext _context, ILogger _log, HvdcPoleForeign hvdcPoleForeign, EntityWriteOption opt)
{
// check if entity already exists
HvdcPole existingHvdcPole = await _context.HvdcPoles.SingleOrDefaultAsync(lr => lr.WebUatId == hvdcPoleForeign.WebUatId);
// check if we should not modify existing entities
if (opt == EntityWriteOption.DontReplace && existingHvdcPole != null)
{
return(existingHvdcPole);
}
// find the Substation via the SubstationWebUatId
int substationWebUatId = hvdcPoleForeign.SubstationWebUatId;
Substation substation = await _context.Substations.SingleOrDefaultAsync(ss => ss.WebUatId == substationWebUatId);
// if Substation doesnot exist, skip the import. Ideally, there should not be such case
if (substation == null)
{
_log.LogCritical($"Unable to find Substation with webUatId {substationWebUatId} while inserting HvdcPole with webUatId {hvdcPoleForeign.WebUatId} and name {hvdcPoleForeign.Name}");
return(null);
}
// find the State via the State WebUatId
int stateWebUatId = hvdcPoleForeign.StateWebUatId;
State state = await _context.States.SingleOrDefaultAsync(s => s.WebUatId == stateWebUatId);
// if state doesnot exist, skip the import. Ideally, there should not be such case
if (state == null)
{
_log.LogCritical($"Unable to find state with webUatId {stateWebUatId} while inserting HvdcPole with webUatId {hvdcPoleForeign.WebUatId} and name {hvdcPoleForeign.Name}");
return(null);
}
int voltLevelWebUatId = hvdcPoleForeign.VoltLevelWebUatId;
VoltLevel voltLevel = await _context.VoltLevels.SingleOrDefaultAsync(v => v.WebUatId == voltLevelWebUatId);
// if voltLevel doesnot exist, skip the import. Ideally, there should not be such case
if (voltLevel == null)
{
_log.LogCritical($"Unable to find VoltLevel with webUatId {voltLevelWebUatId} while inserting HvdcPole with webUatId {hvdcPoleForeign.WebUatId} and name {hvdcPoleForeign.Name}");
return(null);
}
// check if we have to replace the entity completely
if (opt == EntityWriteOption.Replace && existingHvdcPole != null)
{
_context.HvdcPoles.Remove(existingHvdcPole);
}
// if entity is not present, then insert or check if we have to replace the entity completely
if (existingHvdcPole == null || (opt == EntityWriteOption.Replace && existingHvdcPole != null))
{
HvdcPole newHvdcPole = new HvdcPole();
newHvdcPole.Name = hvdcPoleForeign.Name;
newHvdcPole.PoleNumber = hvdcPoleForeign.PoleNumber.ToString();
newHvdcPole.SubstationId = substation.SubstationId;
newHvdcPole.StateId = state.StateId;
newHvdcPole.VoltLevelId = voltLevel.VoltLevelId;
newHvdcPole.PoleType = hvdcPoleForeign.PoleType;
newHvdcPole.MaxFiringAngleDegrees = hvdcPoleForeign.MaxFiringAngleDegrees;
newHvdcPole.MinFiringAngleDegrees = hvdcPoleForeign.MinFiringAngleDegrees;
newHvdcPole.ThermalLimitMVA = hvdcPoleForeign.ThermalLimitMVA;
newHvdcPole.CommDate = hvdcPoleForeign.CommDate;
newHvdcPole.CodDate = hvdcPoleForeign.CodDate;
newHvdcPole.DeCommDate = hvdcPoleForeign.DeCommDate;
newHvdcPole.WebUatId = hvdcPoleForeign.WebUatId;
_context.HvdcPoles.Add(newHvdcPole);
await _context.SaveChangesAsync();
return(newHvdcPole);
}
// check if we have to modify the entity
if (opt == EntityWriteOption.Modify && existingHvdcPole != null)
{
existingHvdcPole.Name = hvdcPoleForeign.Name;
existingHvdcPole.PoleNumber = hvdcPoleForeign.PoleNumber.ToString();
existingHvdcPole.SubstationId = substation.SubstationId;
existingHvdcPole.StateId = state.StateId;
existingHvdcPole.VoltLevelId = voltLevel.VoltLevelId;
existingHvdcPole.PoleType = hvdcPoleForeign.PoleType;
existingHvdcPole.MaxFiringAngleDegrees = hvdcPoleForeign.MaxFiringAngleDegrees;
existingHvdcPole.MinFiringAngleDegrees = hvdcPoleForeign.MinFiringAngleDegrees;
existingHvdcPole.ThermalLimitMVA = hvdcPoleForeign.ThermalLimitMVA;
existingHvdcPole.CommDate = hvdcPoleForeign.CommDate;
existingHvdcPole.CodDate = hvdcPoleForeign.CodDate;
existingHvdcPole.DeCommDate = hvdcPoleForeign.DeCommDate;
await _context.SaveChangesAsync();
return(existingHvdcPole);
}
return(null);
}