mirror of
https://github.com/LemmyNet/lemmy.git
synced 2024-12-04 23:26:46 +00:00
be1389420b
* SQL format checking, 1. * SQL format checking, 2. * SQL format checking, 3. * SQL format checking, 4. * SQL format checking, 5. * Running pg_format * Getting rid of comment. * Upping pg_format version. * Using git ls-files for sql format check. * Fixing sql lints. * Addressing PR comments.
118 lines
3.1 KiB
PL/PgSQL
118 lines
3.1 KiB
PL/PgSQL
-- Add comment aggregates
|
|
CREATE TABLE comment_aggregates (
|
|
id serial PRIMARY KEY,
|
|
comment_id int REFERENCES COMMENT ON UPDATE CASCADE ON DELETE CASCADE NOT NULL,
|
|
score bigint NOT NULL DEFAULT 0,
|
|
upvotes bigint NOT NULL DEFAULT 0,
|
|
downvotes bigint NOT NULL DEFAULT 0,
|
|
published timestamp NOT NULL DEFAULT now(),
|
|
UNIQUE (comment_id)
|
|
);
|
|
|
|
INSERT INTO comment_aggregates (comment_id, score, upvotes, downvotes, published)
|
|
SELECT
|
|
c.id,
|
|
COALESCE(cl.total, 0::bigint) AS score,
|
|
COALESCE(cl.up, 0::bigint) AS upvotes,
|
|
COALESCE(cl.down, 0::bigint) AS downvotes,
|
|
c.published
|
|
FROM
|
|
comment c
|
|
LEFT JOIN (
|
|
SELECT
|
|
l.comment_id AS id,
|
|
sum(l.score) AS total,
|
|
count(
|
|
CASE WHEN l.score = 1 THEN
|
|
1
|
|
ELSE
|
|
NULL::integer
|
|
END) AS up,
|
|
count(
|
|
CASE WHEN l.score = '-1'::integer THEN
|
|
1
|
|
ELSE
|
|
NULL::integer
|
|
END) AS down
|
|
FROM
|
|
comment_like l
|
|
GROUP BY
|
|
l.comment_id) cl ON cl.id = c.id;
|
|
|
|
-- Add comment aggregate triggers
|
|
-- initial comment add
|
|
CREATE FUNCTION comment_aggregates_comment ()
|
|
RETURNS TRIGGER
|
|
LANGUAGE plpgsql
|
|
AS $$
|
|
BEGIN
|
|
IF (TG_OP = 'INSERT') THEN
|
|
INSERT INTO comment_aggregates (comment_id)
|
|
VALUES (NEW.id);
|
|
ELSIF (TG_OP = 'DELETE') THEN
|
|
DELETE FROM comment_aggregates
|
|
WHERE comment_id = OLD.id;
|
|
END IF;
|
|
RETURN NULL;
|
|
END
|
|
$$;
|
|
|
|
CREATE TRIGGER comment_aggregates_comment
|
|
AFTER INSERT OR DELETE ON comment
|
|
FOR EACH ROW
|
|
EXECUTE PROCEDURE comment_aggregates_comment ();
|
|
|
|
-- comment score
|
|
CREATE FUNCTION comment_aggregates_score ()
|
|
RETURNS TRIGGER
|
|
LANGUAGE plpgsql
|
|
AS $$
|
|
BEGIN
|
|
IF (TG_OP = 'INSERT') THEN
|
|
UPDATE
|
|
comment_aggregates ca
|
|
SET
|
|
score = score + NEW.score,
|
|
upvotes = CASE WHEN NEW.score = 1 THEN
|
|
upvotes + 1
|
|
ELSE
|
|
upvotes
|
|
END,
|
|
downvotes = CASE WHEN NEW.score = - 1 THEN
|
|
downvotes + 1
|
|
ELSE
|
|
downvotes
|
|
END
|
|
WHERE
|
|
ca.comment_id = NEW.comment_id;
|
|
ELSIF (TG_OP = 'DELETE') THEN
|
|
-- Join to comment because that comment may not exist anymore
|
|
UPDATE
|
|
comment_aggregates ca
|
|
SET
|
|
score = score - OLD.score,
|
|
upvotes = CASE WHEN OLD.score = 1 THEN
|
|
upvotes - 1
|
|
ELSE
|
|
upvotes
|
|
END,
|
|
downvotes = CASE WHEN OLD.score = - 1 THEN
|
|
downvotes - 1
|
|
ELSE
|
|
downvotes
|
|
END
|
|
FROM
|
|
comment c
|
|
WHERE
|
|
ca.comment_id = c.id
|
|
AND ca.comment_id = OLD.comment_id;
|
|
END IF;
|
|
RETURN NULL;
|
|
END
|
|
$$;
|
|
|
|
CREATE TRIGGER comment_aggregates_score
|
|
AFTER INSERT OR DELETE ON comment_like
|
|
FOR EACH ROW
|
|
EXECUTE PROCEDURE comment_aggregates_score ();
|
|
|