public ErrorCodes Update(ref MMeasurementTag tag, MSystemUser user)
{
Log.Logger.Information("Update a seminar tag {@tag}", tag);
using (var transaction = DbContext.Database.BeginTransaction())
{
MMeasurementTag originalTag = DbContext.MMeasurementTag.Find(tag.MmtId);
if (!originalTag.MmtUpdateDatetime.Equals(tag.MmtUpdateDatetime))
{
return(ErrorCodes.DataIntegrity);
}
originalTag.UpdateTagInfo(tag);
originalTag.UpdateEditingInfo(user);
originalTag.EnsureTagInfoNotNull();
DbContext.Update(originalTag);
int effectedRows = DbContext.SaveChanges();
if (effectedRows != 1)
{
transaction.Rollback();
return(ErrorCodes.SaveFailure);
}
transaction.Commit();
tag = originalTag;
}
Log.Logger.Information("Update sucessfully");
return(ErrorCodes.None);
}
public ErrorCodes Insert(ref MMeasurementTag tag, MSystemUser user)
{
Log.Logger.Information("Insert a new seminar tag {@tag}", tag);
using (var transaction = DbContext.Database.BeginTransaction())
{
tag.UpdateCreatingInfo(user);
tag.EnsureTagInfoNotNull();
DbContext.Add(tag);
int effectedRows = DbContext.SaveChanges();
if (effectedRows != 1)
{
transaction.Rollback();
return(ErrorCodes.SaveFailure);
}
transaction.Commit();
}
Log.Logger.Information("Insert successfully");
return(ErrorCodes.None);
}
