Update and Insert in a View Insert Rule

On 21 May 2002, Tom Jenkins wrote:

Hello all,
I have a table jobs that holds both historical and current jobs:
jobid SERIAL
jobemployee INT4
jobiscurrent INT2
etc

the users manipulate two views: historicaljob and currentjob. These
views are simply defined by the value of jobiscurrent (0 for historical,
1 for current - yes i know it should be a boolean but erwin won't
generate a postgres boolean may it rot in hell)

now i have the insert rule working fine for historical jobs. however
for currentjob, there is a small twist. First the old current job must
be set to historical, then the new current job inserted.

my insert rule is:

CREATE RULE insert_current_job AS
ON INSERT TO currentjob
DO INSTEAD
UPDATE job set jobiscurrent=0, lastuser=New.lastuser
WHERE jobemployee = NEW.jobemployee and jobiscurrent=1;
INSERT INTO job (
jobemployee,
jobagencybureau,
jobbranch,
blah, blah, blah,
jobiscurrent
) VALUES (
NEW.jobemployee,
NEW.jobagencybureau,
NEW.jobbranch,
blah, blah, blah,
1
)

unfortunately this gives me an error when I attempt to load the rule I
get:
ERROR: NEW used in non-rule query

I don't understand why this wouldn't work. Unless it has something to
do with NEW getting "lost" in the update call? should i move the update
out to a function and calling it from the rule?

I think you forgot to use the () around the multiple actions.
It should probably be:
DO INSTEAD (
...
);

On Tue, 2002-05-21 at 18:19, Stephan Szabo wrote:

On 21 May 2002, Tom Jenkins wrote:

unfortunately this gives me an error when I attempt to load the rule I
get:
ERROR: NEW used in non-rule query

I don't understand why this wouldn't work. Unless it has something to
do with NEW getting "lost" in the update call? should i move the update
out to a function and calling it from the rule?

I think you forgot to use the () around the multiple actions.
It should probably be:
DO INSTEAD (
...
);

AAAARRRRRGGGGGGHHHHHHH!!!
*sigh* up that was the problem. Funny how you can stare at something
and not actually see it. Thanks

--

Tom Jenkins
Development InfoStructure
http://www.devis.com