David, I am trying your suggestion:
On Wed, May 4, 2022 at 4:27 PM David G. Johnston <david.g.johnston@xxxxxxxxx> wrote:
Assuming the base query is capable of returning all related chat messages for both users (I'd probably place that portion into a CTE) the rows you want to filter out are those whose c.uid is not my own, but only if their muted property is true. It makes it easier to understand if you join words_users twice, defining one as "them" and one as "me". Then you can say something like: WHERE (c.uid = me.uid) OR NOT(them.muted)
like this:
https://dbfiddle.uk/?rdbms=postgres_14&fiddle=4ab6a09cddae26a11140202fdc41cf5c
CREATE OR REPLACE FUNCTION words_get_chat(
in_gid integer,
in_social integer,
in_sid text
) RETURNS TABLE (
out_mine integer,
out_msg text
) AS
$func$
SELECT
CASE WHEN c.uid = s.uid THEN 1 ELSE 0 END,
c.msg
FROM words_chat c
JOIN words_games g USING (gid)
JOIN words_users myself ON (myself.uid IN (g.player1, g.player2))
JOIN words_users opponent ON (opponent.uid IN (g.player1, g.player2))
JOIN words_social s ON (s.uid = myself.uid)
WHERE c.gid = in_gid
AND s.social = in_social
AND s.sid = in_sid
AND (c.uid = myself.uid OR NOT opponent.muted)
ORDER BY c.CREATED ASC;
$func$ LANGUAGE sql;
