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Use coalesce to handle NULLs

This commit is contained in:
Isaac Connor 2018-01-19 13:09:46 -05:00
parent e8603b6065
commit bc792a8325
1 changed files with 5 additions and 5 deletions
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10
db/zm_create.sql.in
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@ -303,22 +303,22 @@ BEGIN
IF ( NEW.Archived != OLD.Archived ) THEN
IF ( NEW.Archived ) THEN
INSERT INTO Events_Archived (EventId,MonitorId,DiskSpace) VALUES (NEW.Id,NEW.MonitorId,NEW.DiskSpace);
UPDATE Monitors SET ArchivedEvents = ArchivedEvents+1, ArchivedEventDiskSpace = ArchivedEventDiskSpace + NEW.DiskSpace WHERE Id=NEW.MonitorId;
UPDATE Monitors SET ArchivedEvents = COALESCE(ArchivedEvents,0)+1, ArchivedEventDiskSpace = COALESCE(ArchivedEventDiskSpace,0) + COALESCE(NEW.DiskSpace,0) WHERE Id=NEW.MonitorId;
ELSEIF ( OLD.Archived ) THEN
DELETE FROM Events_Archived WHERE EventId=OLD.Id;
UPDATE Monitors SET ArchivedEvents =ArchivedEvents-1, ArchivedEventDiskSpace = ArchivedEventDiskSpace - OLD.DiskSpace WHERE Id=OLD.MonitorId;
UPDATE Monitors SET ArchivedEvents = COALESCE(ArchivedEvents,0)-1, ArchivedEventDiskSpace = COALESCE(ArchivedEventDiskSpace,0) - COALESCE(OLD.DiskSpace,0) WHERE Id=OLD.MonitorId;
ELSE
IF ( OLD.DiskSpace != NEW.DiskSpace ) THEN
UPDATE Events_Archived SET DiskSpace=NEW.DiskSpace WHERE EventId=NEW.Id;
UPDATE Monitors SET
ArchivedEventDiskSpace = ArchivedEventDiskSpace - OLD.DiskSpace + NEW.DiskSpace
ArchivedEventDiskSpace = COALESCE(ArchivedEventDiskSpace,0) - COALESCE(OLD.DiskSpace,0) + COALESCE(NEW.DiskSpace,0)
WHERE Id=OLD.MonitorId;
END IF;
END IF;
END IF;
IF ( OLD.DiskSpace != NEW.DiskSpace ) THEN
UPDATE Monitors SET TotalEventDiskSpace = TotalEventDiskSpace - OLD.DiskSpace + NEW.DiskSpace WHERE Id=OLD.MonitorId;
UPDATE Monitors SET TotalEventDiskSpace = COALESCE(TotalEventDiskSpace,0) - COALESCE(OLD.DiskSpace,0) + COALESCE(NEW.DiskSpace,0) WHERE Id=OLD.MonitorId;
END IF;
END;
@ -338,7 +338,7 @@ for each row
INSERT INTO Events_Day (EventId,MonitorId,StartTime,DiskSpace) VALUES (NEW.Id,NEW.MonitorId,NEW.StartTime,0);
INSERT INTO Events_Week (EventId,MonitorId,StartTime,DiskSpace) VALUES (NEW.Id,NEW.MonitorId,NEW.StartTime,0);
INSERT INTO Events_Month (EventId,MonitorId,StartTime,DiskSpace) VALUES (NEW.Id,NEW.MonitorId,NEW.StartTime,0);
UPDATE Monitors SET TotalEvents = TotalEvents+1 WHERE Id=NEW.MonitorId;
UPDATE Monitors SET TotalEvents = COALESCE(TotalEvents,0)+1 WHERE Id=NEW.MonitorId;
end;
//