Re: Displaying chat by punished users only to themselves (db fiddle attached)

Good morning, this is a very insightful comment (among many) by you, David -

On Wed, May 4, 2022 at 5:40 PM David G. Johnston <david(dot)g(dot)johnston(at)gmail(dot)com>
wrote:

> Well, that is basically why I was going on about the oddity of having
> social be a part of the main query. Personally I would write it as
> "myself.uid = in_uid", but you don't have an in_uid to reference. Decide
> how you want to do something equivalent.
>
>
so I will rewrite the stored functions in my game to be like that, to
separate auth from functionality -

https://dbfiddle.uk/?rdbms=postgres_14&fiddle=dbdf1a6b82f7232be45e23b8139a8f0e

CREATE OR REPLACE FUNCTION words_get_uid(
in_social integer,
in_sid text
) RETURNS integer AS
$func$
SELECT uid
FROM words_social
WHERE social = in_social
AND sid = in_sid;
$func$ LANGUAGE sql IMMUTABLE;

CREATE OR REPLACE FUNCTION words_get_chat(
in_gid integer,
in_uid integer
) RETURNS TABLE (
out_mine integer,
out_msg text
) AS
$func$
SELECT
CASE WHEN c.uid = in_uid THEN 1 ELSE 0 END,
c.msg
FROM words_chat c
JOIN words_games g USING (gid)
JOIN words_users opponent ON (opponent.uid IN (g.player1,
g.player2) AND opponent.uid <> in_uid)
WHERE c.gid = in_gid
-- always show myself my own chat messages
AND c.uid = in_uid
-- otherwise only show messages by not muted opponents
OR NOT opponent.muted
ORDER BY c.created ASC;

$func$ LANGUAGE sql;

SELECT words_get_chat(10, words_get_uid(100, 'abc')) AS nice_user;

SELECT words_get_chat(10, words_get_uid(200, 'def')) AS muted_user;

Thanks
Alex