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DROP TRIGGER artifactgroup_update_trig ON artifact;
DROP FUNCTION artifactgroup_update_agg();
CREATE OR REPLACE FUNCTION artifactgroup_update_agg () RETURNS OPAQUE AS '
BEGIN
--
-- see if they are moving to a new artifacttype
-- if so, its a more complex operation
--
IF NEW.group_artifact_id <> OLD.group_artifact_id THEN
--
-- transferred artifacts always have a status of 1
-- so we will increment the new artifacttypes sums
--
IF OLD.status_id=3 THEN
-- No need to decrement counters on old tracker
ELSE
IF OLD.status_id=2 THEN
UPDATE artifact_counts_agg SET count=count-1 \
WHERE group_artifact_id=OLD.group_artifact_id;
ELSE
IF OLD.status_id=1 THEN
UPDATE artifact_counts_agg SET count=count-1,open_count=open_count-1 \
WHERE group_artifact_id=OLD.group_artifact_id;
END IF;
END IF;
END IF;
IF NEW.status_id=3 THEN
--DO NOTHING
ELSE
IF NEW.status_id=2 THEN
UPDATE artifact_counts_agg SET count=count+1 \
WHERE group_artifact_id=NEW.group_artifact_id;
ELSE
IF NEW.status_id=1 THEN
UPDATE artifact_counts_agg SET count=count+1, open_count=open_count+1 \
WHERE group_artifact_id=NEW.group_artifact_id;
END IF;
END IF;
END IF;
ELSE
--
-- just need to evaluate the status flag and
-- increment/decrement the counter as necessary
--
IF NEW.status_id <> OLD.status_id THEN
IF NEW.status_id = 1 THEN
IF OLD.status_id=2 THEN
UPDATE artifact_counts_agg SET open_count=open_count+1 \
WHERE group_artifact_id=NEW.group_artifact_id;
ELSE
IF OLD.status_id=3 THEN
UPDATE artifact_counts_agg SET open_count=open_count+1, count=count+1 \
WHERE group_artifact_id=NEW.group_artifact_id;
END IF;
END IF;
ELSE
IF NEW.status_id = 2 THEN
IF OLD.status_id=1 THEN
UPDATE artifact_counts_agg SET open_count=open_count-1 \
WHERE group_artifact_id=NEW.group_artifact_id;
ELSE
IF OLD.status_id=3 THEN
UPDATE artifact_counts_agg SET count=count+1 \
WHERE group_artifact_id=NEW.group_artifact_id;
END IF;
END IF;
ELSE
IF NEW.status_id = 3 THEN
IF OLD.status_id=2 THEN
UPDATE artifact_counts_agg SET count=count-1 \
WHERE group_artifact_id=NEW.group_artifact_id;
ELSE
IF OLD.status_id=1 THEN
UPDATE artifact_counts_agg SET open_count=open_count-1,count=count-1 \
WHERE group_artifact_id=NEW.group_artifact_id;
END IF;
END IF;
END IF;
END IF;
END IF;
END IF;
END IF;
RETURN NEW;
END;
' LANGUAGE 'plpgsql';
CREATE TRIGGER "artifactgroup_update_trig" AFTER UPDATE ON "artifact" FOR EACH ROW EXECUTE PROCEDURE "artifactgroup_update_agg" ();
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