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db: decrease comment count when a comment is deleted

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Update commentsDeleteTriggerFunction in order to decrease the
counter before deleting nested comments.

Closes https://gitlab.com/commento/commento/issues/157
This commit is contained in:
Enrico Testori 2019-05-05 20:11:02 +02:00 committed by Adhityaa Chandrasekar
parent 62340eb9c6
commit 4a8e90bd43
1 changed files with 13 additions and 0 deletions
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13
db/20190505191006-comment-count-decrease.sql Normal file
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-- This trigger is called every time a comment is deleted, so the comment count for the page where the comment belong is updated
CREATE OR REPLACE FUNCTION commentsDeleteTriggerFunction() RETURNS TRIGGER AS $trigger$
BEGIN
UPDATE pages
SET commentCount = commentCount - 1
WHERE domain = old.domain AND path = old.path;
DELETE FROM comments
WHERE parentHex = old.commentHex;
RETURN NEW;
END;
$trigger$ LANGUAGE plpgsql;