public List <CompensatorForeign> ExtractCompensatorForeign(string oracleConnString)
{
using (OracleConnection con = new OracleConnection(oracleConnString))
{
using (OracleCommand cmd = con.CreateCommand())
{
try
{
con.Open();
cmd.BindByName = true;
cmd.CommandText = @"select ID, TCSC_NAME, TCSC_TYPE_ID, TCSC_NUMBER, FK_SUBSTATION, LINE_TYPE_ID,
FK_LINE, LOCATION_ID, PERC_VARIABLE_COMPENSATION, PERC_FIXED_COMPENSATION, LINE_REACTANCE_OHMS,
DATETIME_OF_COMMISSIONING, DATETIME_OF_COD, DATETIME_OF_DECOMMISSIONING from REPORTING_WEB_UI_UAT.TCSC where :id=1";
// 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 <CompensatorForeign> compensatorsForeign = new List <CompensatorForeign>();
while (reader.Read())
{
CompensatorForeign compensatorForeign = new CompensatorForeign();
compensatorForeign.WebUatId = reader.GetInt32(0);
compensatorForeign.Name = reader.GetString(1);
compensatorForeign.CompensatorTypeWebUatId = reader.GetInt32(2);
compensatorForeign.CompensatorNumber = reader.GetInt32(3);
compensatorForeign.SubstationWebUatId = reader.GetInt32(4);
compensatorForeign.AttachElementType = reader.GetInt32(5);
compensatorForeign.AttachElementWebUatId = reader.GetInt32(6);
compensatorForeign.StateWebUatId = reader.GetInt32(7);
compensatorForeign.PercVariableComp = reader.GetInt32(8);
compensatorForeign.PercFixedComp = reader.GetInt32(9);
compensatorForeign.LineReactanceOhms = reader.GetInt32(10);
compensatorForeign.CommDate = reader.GetDateTime(11);
compensatorForeign.CodDate = reader.GetDateTime(12);
compensatorForeign.DeCommDate = reader.GetDateTime(13);
compensatorsForeign.Add(compensatorForeign);
}
reader.Dispose();
return(compensatorsForeign);
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
return(null);
}
}
}
}
public async Task <Compensator> LoadSingleAsync(WRLDCWarehouseDbContext _context, ILogger _log, CompensatorForeign compensatorForeign, EntityWriteOption opt)
{
// check if entity already exists
Compensator existingCompensator = await _context.Compensators.SingleOrDefaultAsync(lr => lr.WebUatId == compensatorForeign.WebUatId);
// check if we should not modify existing entities
if (opt == EntityWriteOption.DontReplace && existingCompensator != null)
{
return(existingCompensator);
}
// find the CompensatorType via the CompensatorTypeWebUatId
int compTypeWebUatId = compensatorForeign.CompensatorTypeWebUatId;
CompensatorType compType = await _context.CompensatorTypes.SingleOrDefaultAsync(ct => ct.WebUatId == compTypeWebUatId);
// if CompensatorType doesnot exist, skip the import. Ideally, there should not be such case
if (compType == null)
{
_log.LogCritical($"Unable to find CompensatorType with webUatId {compTypeWebUatId} while inserting Compensator with webUatId {compensatorForeign.WebUatId} and name {compensatorForeign.Name}");
return(null);
}
// find the Substation via the SubstationWebUatId
int substationWebUatId = compensatorForeign.SubstationWebUatId;
Substation substation = await _context.Substations.SingleOrDefaultAsync(ss => ss.WebUatId == substationWebUatId);
// if Substation doesnot exist, skip the import. Ideally, there should not be such case
if (substation == null)
{
_log.LogCritical($"Unable to find Substation with webUatId {substationWebUatId} while inserting Compensator with webUatId {compensatorForeign.WebUatId} and name {compensatorForeign.Name}");
return(null);
}
// find the State via the State WebUatId
int stateWebUatId = compensatorForeign.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($"Unable to find state with webUatId {stateWebUatId} while inserting Compensator with webUatId {compensatorForeign.WebUatId} and name {compensatorForeign.Name}");
return(null);
}
// find the attachElement Id of the Compensator
int attachElementId = -1;
int attachElementType = compensatorForeign.AttachElementType;
int attachElementWebUatId = compensatorForeign.AttachElementWebUatId;
if (attachElementType == 1)
{
// attach element is a bus
attachElementId = (await _context.Buses.SingleOrDefaultAsync(b => b.WebUatId == attachElementWebUatId)).BusId;
}
else if (attachElementType == 2)
{
// attach element is an AC Transmission line
attachElementId = (await _context.AcTransLineCkts.SingleOrDefaultAsync(b => b.WebUatId == attachElementWebUatId)).AcTransLineCktId;
}
else
{
// encountered an unknown attach element type, ideally this should not happen
_log.LogCritical($"Encountered an unknown attach element type {attachElementType} while inserting Compensator with webUatId {compensatorForeign.WebUatId} and name {compensatorForeign.Name}");
return(null);
}
// check if we have to replace the entity completely
if (opt == EntityWriteOption.Replace && existingCompensator != null)
{
_context.Compensators.Remove(existingCompensator);
}
// if entity is not present, then insert or check if we have to replace the entity completely
if (existingCompensator == null || (opt == EntityWriteOption.Replace && existingCompensator != null))
{
Compensator newCompensator = new Compensator();
newCompensator.Name = compensatorForeign.Name;
newCompensator.CompensatorTypeId = compType.CompensatorTypeId;
newCompensator.SubstationId = substation.SubstationId;
newCompensator.StateId = state.StateId;
newCompensator.AttachElementType = compensatorForeign.AttachElementType;
newCompensator.AttachElementId = attachElementId;
newCompensator.CompensatorNumber = compensatorForeign.CompensatorNumber.ToString();
newCompensator.PercVariableComp = compensatorForeign.PercVariableComp;
newCompensator.PercFixedComp = compensatorForeign.PercFixedComp;
newCompensator.LineReactanceOhms = compensatorForeign.LineReactanceOhms;
newCompensator.CommDate = compensatorForeign.CommDate;
newCompensator.CodDate = compensatorForeign.CodDate;
newCompensator.DeCommDate = compensatorForeign.DeCommDate;
newCompensator.WebUatId = compensatorForeign.WebUatId;
_context.Compensators.Add(newCompensator);
await _context.SaveChangesAsync();
return(newCompensator);
}
// check if we have to modify the entity
if (opt == EntityWriteOption.Modify && existingCompensator != null)
{
existingCompensator.Name = compensatorForeign.Name;
existingCompensator.CompensatorTypeId = compType.CompensatorTypeId;
existingCompensator.SubstationId = substation.SubstationId;
existingCompensator.StateId = state.StateId;
existingCompensator.AttachElementType = compensatorForeign.AttachElementType;
existingCompensator.AttachElementId = attachElementId;
existingCompensator.CompensatorNumber = compensatorForeign.CompensatorNumber.ToString();
existingCompensator.PercVariableComp = compensatorForeign.PercVariableComp;
existingCompensator.PercFixedComp = compensatorForeign.PercFixedComp;
existingCompensator.LineReactanceOhms = compensatorForeign.LineReactanceOhms;
existingCompensator.CommDate = compensatorForeign.CommDate;
existingCompensator.CodDate = compensatorForeign.CodDate;
existingCompensator.DeCommDate = compensatorForeign.DeCommDate;
await _context.SaveChangesAsync();
return(existingCompensator);
}
return(null);
}
