private async Task <Guid?> Create(Flight flight)
{
Entities.Flight entity = ToEntity(flight);
entity.Id = Guid.NewGuid();
_context.Add(entity);
await _context.SaveChangesAsync();
return(entity.Id);
}
public async Task <Guid?> CreateOrUpdate(Flight flight)
{
if (flight.Id == null || flight.Id == Guid.Empty)
{
return(await Create(flight));
}
else
{
return(await Update(flight));
}
}
private Entities.Flight ToEntity(Flight flight)
{
if (flight == null)
{
return(null);
}
return(new Entities.Flight()
{
Id = flight.Id,
DepartureAirportId = flight.DepartureAirport.Id,
ArrivalAirportId = flight.ArrivalAirport.Id,
PlaneId = flight.Plane.Id,
Distance = flight.Distance,
TotalFuelConsumption = flight.TotalFuelConsumption
});
}
private async Task <Guid?> Update(Flight flight)
{
Entities.Flight entity = ToEntity(flight);
_context.Attach(entity).State = EntityState.Modified;
try
{
await _context.SaveChangesAsync();
return(flight.Id);
}
catch (DbUpdateConcurrencyException)
{
if (!_context.Flights.Any(e => e.Id == flight.Id))
{
return(null);
}
else
{
throw;
}
}
}
