public void SaveCall(CallModel callModel)
{
var existingCallRecord = DataAccessStatistics.Calls.SingleOrDefault(x => x.CallId == callModel.CallId);
if (existingCallRecord == null && !DataAccessStatistics.Calls.Any(x => x.CallId == callModel.CallId))
{
DataAccessStatistics.Calls.Add(callModel.CallModelToDomainObject());
}
else if (existingCallRecord != null)//update
{
DataAccessStatistics.Entry(existingCallRecord).CurrentValues.SetValues(callModel);
}
DataAccessStatistics.SaveChanges();
}