mirror of
https://github.com/LemmyNet/lemmy.git
synced 2024-12-11 21:44:52 +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.
446 lines
12 KiB
PL/PgSQL
446 lines
12 KiB
PL/PgSQL
DROP TRIGGER IF EXISTS community_aggregates_post_count ON post;
|
|
|
|
DROP TRIGGER IF EXISTS community_aggregates_comment_count ON comment;
|
|
|
|
DROP TRIGGER IF EXISTS site_aggregates_comment_insert ON comment;
|
|
|
|
DROP TRIGGER IF EXISTS site_aggregates_comment_delete ON comment;
|
|
|
|
DROP TRIGGER IF EXISTS site_aggregates_post_insert ON post;
|
|
|
|
DROP TRIGGER IF EXISTS site_aggregates_post_delete ON post;
|
|
|
|
DROP TRIGGER IF EXISTS site_aggregates_community_insert ON community;
|
|
|
|
DROP TRIGGER IF EXISTS site_aggregates_community_delete ON community;
|
|
|
|
DROP TRIGGER IF EXISTS person_aggregates_post_count ON post;
|
|
|
|
DROP TRIGGER IF EXISTS person_aggregates_comment_count ON comment;
|
|
|
|
CREATE OR REPLACE FUNCTION was_removed_or_deleted (TG_OP text, OLD record, NEW record)
|
|
RETURNS boolean
|
|
LANGUAGE plpgsql
|
|
AS $$
|
|
BEGIN
|
|
IF (TG_OP = 'INSERT') THEN
|
|
RETURN FALSE;
|
|
END IF;
|
|
IF (TG_OP = 'DELETE') THEN
|
|
RETURN TRUE;
|
|
END IF;
|
|
RETURN TG_OP = 'UPDATE'
|
|
AND ((OLD.deleted = 'f'
|
|
AND NEW.deleted = 't')
|
|
OR (OLD.removed = 'f'
|
|
AND NEW.removed = 't'));
|
|
END
|
|
$$;
|
|
|
|
CREATE OR REPLACE FUNCTION was_restored_or_created (TG_OP text, OLD record, NEW record)
|
|
RETURNS boolean
|
|
LANGUAGE plpgsql
|
|
AS $$
|
|
BEGIN
|
|
IF (TG_OP = 'DELETE') THEN
|
|
RETURN FALSE;
|
|
END IF;
|
|
IF (TG_OP = 'INSERT') THEN
|
|
RETURN TRUE;
|
|
END IF;
|
|
RETURN TG_OP = 'UPDATE'
|
|
AND ((OLD.deleted = 't'
|
|
AND NEW.deleted = 'f')
|
|
OR (OLD.removed = 't'
|
|
AND NEW.removed = 'f'));
|
|
END
|
|
$$;
|
|
|
|
-- Community aggregate functions
|
|
CREATE OR REPLACE FUNCTION community_aggregates_post_count ()
|
|
RETURNS TRIGGER
|
|
LANGUAGE plpgsql
|
|
AS $$
|
|
BEGIN
|
|
IF (was_restored_or_created (TG_OP, OLD, NEW)) THEN
|
|
UPDATE
|
|
community_aggregates
|
|
SET
|
|
posts = posts + 1
|
|
WHERE
|
|
community_id = NEW.community_id;
|
|
IF (TG_OP = 'UPDATE') THEN
|
|
-- Post was restored, so restore comment counts as well
|
|
UPDATE
|
|
community_aggregates ca
|
|
SET
|
|
posts = coalesce(cd.posts, 0),
|
|
comments = coalesce(cd.comments, 0)
|
|
FROM (
|
|
SELECT
|
|
c.id,
|
|
count(DISTINCT p.id) AS posts,
|
|
count(DISTINCT ct.id) AS comments
|
|
FROM
|
|
community c
|
|
LEFT JOIN post p ON c.id = p.community_id
|
|
AND p.deleted = 'f'
|
|
AND p.removed = 'f'
|
|
LEFT JOIN comment ct ON p.id = ct.post_id
|
|
AND ct.deleted = 'f'
|
|
AND ct.removed = 'f'
|
|
WHERE
|
|
c.id = NEW.community_id
|
|
GROUP BY
|
|
c.id) cd
|
|
WHERE
|
|
ca.community_id = NEW.community_id;
|
|
END IF;
|
|
ELSIF (was_removed_or_deleted (TG_OP, OLD, NEW)) THEN
|
|
UPDATE
|
|
community_aggregates
|
|
SET
|
|
posts = posts - 1
|
|
WHERE
|
|
community_id = OLD.community_id;
|
|
-- Update the counts if the post got deleted
|
|
UPDATE
|
|
community_aggregates ca
|
|
SET
|
|
posts = coalesce(cd.posts, 0),
|
|
comments = coalesce(cd.comments, 0)
|
|
FROM (
|
|
SELECT
|
|
c.id,
|
|
count(DISTINCT p.id) AS posts,
|
|
count(DISTINCT ct.id) AS comments
|
|
FROM
|
|
community c
|
|
LEFT JOIN post p ON c.id = p.community_id
|
|
AND p.deleted = 'f'
|
|
AND p.removed = 'f'
|
|
LEFT JOIN comment ct ON p.id = ct.post_id
|
|
AND ct.deleted = 'f'
|
|
AND ct.removed = 'f'
|
|
WHERE
|
|
c.id = OLD.community_id
|
|
GROUP BY
|
|
c.id) cd
|
|
WHERE
|
|
ca.community_id = OLD.community_id;
|
|
END IF;
|
|
RETURN NULL;
|
|
END
|
|
$$;
|
|
|
|
-- comment count
|
|
CREATE OR REPLACE FUNCTION community_aggregates_comment_count ()
|
|
RETURNS TRIGGER
|
|
LANGUAGE plpgsql
|
|
AS $$
|
|
BEGIN
|
|
IF (was_restored_or_created (TG_OP, OLD, NEW)) THEN
|
|
UPDATE
|
|
community_aggregates ca
|
|
SET
|
|
comments = comments + 1
|
|
FROM
|
|
comment c,
|
|
post p
|
|
WHERE
|
|
p.id = c.post_id
|
|
AND p.id = NEW.post_id
|
|
AND ca.community_id = p.community_id;
|
|
ELSIF (was_removed_or_deleted (TG_OP, OLD, NEW)) THEN
|
|
UPDATE
|
|
community_aggregates ca
|
|
SET
|
|
comments = comments - 1
|
|
FROM
|
|
comment c,
|
|
post p
|
|
WHERE
|
|
p.id = c.post_id
|
|
AND p.id = OLD.post_id
|
|
AND ca.community_id = p.community_id;
|
|
END IF;
|
|
RETURN NULL;
|
|
END
|
|
$$;
|
|
|
|
-- Community aggregate triggers
|
|
CREATE TRIGGER community_aggregates_post_count
|
|
AFTER INSERT OR DELETE OR UPDATE OF removed,
|
|
deleted ON post
|
|
FOR EACH ROW
|
|
EXECUTE PROCEDURE community_aggregates_post_count ();
|
|
|
|
CREATE TRIGGER community_aggregates_comment_count
|
|
AFTER INSERT OR DELETE OR UPDATE OF removed,
|
|
deleted ON comment
|
|
FOR EACH ROW
|
|
EXECUTE PROCEDURE community_aggregates_comment_count ();
|
|
|
|
-- Site aggregate functions
|
|
CREATE OR REPLACE FUNCTION site_aggregates_post_insert ()
|
|
RETURNS TRIGGER
|
|
LANGUAGE plpgsql
|
|
AS $$
|
|
BEGIN
|
|
IF (was_restored_or_created (TG_OP, OLD, NEW)) THEN
|
|
UPDATE
|
|
site_aggregates sa
|
|
SET
|
|
posts = posts + 1
|
|
FROM
|
|
site s
|
|
WHERE
|
|
sa.site_id = s.id;
|
|
END IF;
|
|
RETURN NULL;
|
|
END
|
|
$$;
|
|
|
|
CREATE OR REPLACE FUNCTION site_aggregates_post_delete ()
|
|
RETURNS TRIGGER
|
|
LANGUAGE plpgsql
|
|
AS $$
|
|
BEGIN
|
|
IF (was_removed_or_deleted (TG_OP, OLD, NEW)) THEN
|
|
UPDATE
|
|
site_aggregates sa
|
|
SET
|
|
posts = posts - 1
|
|
FROM
|
|
site s
|
|
WHERE
|
|
sa.site_id = s.id;
|
|
END IF;
|
|
RETURN NULL;
|
|
END
|
|
$$;
|
|
|
|
CREATE OR REPLACE FUNCTION site_aggregates_comment_insert ()
|
|
RETURNS TRIGGER
|
|
LANGUAGE plpgsql
|
|
AS $$
|
|
BEGIN
|
|
IF (was_restored_or_created (TG_OP, OLD, NEW)) THEN
|
|
UPDATE
|
|
site_aggregates sa
|
|
SET
|
|
comments = comments + 1
|
|
FROM
|
|
site s
|
|
WHERE
|
|
sa.site_id = s.id;
|
|
END IF;
|
|
RETURN NULL;
|
|
END
|
|
$$;
|
|
|
|
CREATE OR REPLACE FUNCTION site_aggregates_comment_delete ()
|
|
RETURNS TRIGGER
|
|
LANGUAGE plpgsql
|
|
AS $$
|
|
BEGIN
|
|
IF (was_removed_or_deleted (TG_OP, OLD, NEW)) THEN
|
|
UPDATE
|
|
site_aggregates sa
|
|
SET
|
|
comments = comments - 1
|
|
FROM
|
|
site s
|
|
WHERE
|
|
sa.site_id = s.id;
|
|
END IF;
|
|
RETURN NULL;
|
|
END
|
|
$$;
|
|
|
|
CREATE OR REPLACE FUNCTION site_aggregates_community_insert ()
|
|
RETURNS TRIGGER
|
|
LANGUAGE plpgsql
|
|
AS $$
|
|
BEGIN
|
|
IF (was_restored_or_created (TG_OP, OLD, NEW)) THEN
|
|
UPDATE
|
|
site_aggregates sa
|
|
SET
|
|
communities = communities + 1
|
|
FROM
|
|
site s
|
|
WHERE
|
|
sa.site_id = s.id;
|
|
END IF;
|
|
RETURN NULL;
|
|
END
|
|
$$;
|
|
|
|
CREATE OR REPLACE FUNCTION site_aggregates_community_delete ()
|
|
RETURNS TRIGGER
|
|
LANGUAGE plpgsql
|
|
AS $$
|
|
BEGIN
|
|
IF (was_removed_or_deleted (TG_OP, OLD, NEW)) THEN
|
|
UPDATE
|
|
site_aggregates sa
|
|
SET
|
|
communities = communities - 1
|
|
FROM
|
|
site s
|
|
WHERE
|
|
sa.site_id = s.id;
|
|
END IF;
|
|
RETURN NULL;
|
|
END
|
|
$$;
|
|
|
|
-- Site aggregate triggers
|
|
CREATE TRIGGER site_aggregates_post_insert
|
|
AFTER INSERT OR UPDATE OF removed,
|
|
deleted ON post
|
|
FOR EACH ROW
|
|
WHEN (NEW.local = TRUE)
|
|
EXECUTE PROCEDURE site_aggregates_post_insert ();
|
|
|
|
CREATE TRIGGER site_aggregates_post_delete
|
|
AFTER DELETE OR UPDATE OF removed,
|
|
deleted ON post
|
|
FOR EACH ROW
|
|
WHEN (OLD.local = TRUE)
|
|
EXECUTE PROCEDURE site_aggregates_post_delete ();
|
|
|
|
CREATE TRIGGER site_aggregates_comment_insert
|
|
AFTER INSERT OR UPDATE OF removed,
|
|
deleted ON comment
|
|
FOR EACH ROW
|
|
WHEN (NEW.local = TRUE)
|
|
EXECUTE PROCEDURE site_aggregates_comment_insert ();
|
|
|
|
CREATE TRIGGER site_aggregates_comment_delete
|
|
AFTER DELETE OR UPDATE OF removed,
|
|
deleted ON comment
|
|
FOR EACH ROW
|
|
WHEN (OLD.local = TRUE)
|
|
EXECUTE PROCEDURE site_aggregates_comment_delete ();
|
|
|
|
CREATE TRIGGER site_aggregates_community_insert
|
|
AFTER INSERT OR UPDATE OF removed,
|
|
deleted ON community
|
|
FOR EACH ROW
|
|
WHEN (NEW.local = TRUE)
|
|
EXECUTE PROCEDURE site_aggregates_community_insert ();
|
|
|
|
CREATE TRIGGER site_aggregates_community_delete
|
|
AFTER DELETE OR UPDATE OF removed,
|
|
deleted ON community
|
|
FOR EACH ROW
|
|
WHEN (OLD.local = TRUE)
|
|
EXECUTE PROCEDURE site_aggregates_community_delete ();
|
|
|
|
-- Person aggregate functions
|
|
CREATE OR REPLACE FUNCTION person_aggregates_post_count ()
|
|
RETURNS TRIGGER
|
|
LANGUAGE plpgsql
|
|
AS $$
|
|
BEGIN
|
|
IF (was_restored_or_created (TG_OP, OLD, NEW)) THEN
|
|
UPDATE
|
|
person_aggregates
|
|
SET
|
|
post_count = post_count + 1
|
|
WHERE
|
|
person_id = NEW.creator_id;
|
|
ELSIF (was_removed_or_deleted (TG_OP, OLD, NEW)) THEN
|
|
UPDATE
|
|
person_aggregates
|
|
SET
|
|
post_count = post_count - 1
|
|
WHERE
|
|
person_id = OLD.creator_id;
|
|
-- If the post gets deleted, the score calculation trigger won't fire,
|
|
-- so you need to re-calculate
|
|
UPDATE
|
|
person_aggregates ua
|
|
SET
|
|
post_score = pd.score
|
|
FROM (
|
|
SELECT
|
|
u.id,
|
|
coalesce(0, sum(pl.score)) AS score
|
|
-- User join because posts could be empty
|
|
FROM
|
|
person u
|
|
LEFT JOIN post p ON u.id = p.creator_id
|
|
AND p.deleted = 'f'
|
|
AND p.removed = 'f'
|
|
LEFT JOIN post_like pl ON p.id = pl.post_id
|
|
GROUP BY
|
|
u.id) pd
|
|
WHERE
|
|
ua.person_id = OLD.creator_id;
|
|
END IF;
|
|
RETURN NULL;
|
|
END
|
|
$$;
|
|
|
|
CREATE OR REPLACE FUNCTION person_aggregates_comment_count ()
|
|
RETURNS TRIGGER
|
|
LANGUAGE plpgsql
|
|
AS $$
|
|
BEGIN
|
|
IF (was_restored_or_created (TG_OP, OLD, NEW)) THEN
|
|
UPDATE
|
|
person_aggregates
|
|
SET
|
|
comment_count = comment_count + 1
|
|
WHERE
|
|
person_id = NEW.creator_id;
|
|
ELSIF (was_removed_or_deleted (TG_OP, OLD, NEW)) THEN
|
|
UPDATE
|
|
person_aggregates
|
|
SET
|
|
comment_count = comment_count - 1
|
|
WHERE
|
|
person_id = OLD.creator_id;
|
|
-- If the comment gets deleted, the score calculation trigger won't fire,
|
|
-- so you need to re-calculate
|
|
UPDATE
|
|
person_aggregates ua
|
|
SET
|
|
comment_score = cd.score
|
|
FROM (
|
|
SELECT
|
|
u.id,
|
|
coalesce(0, sum(cl.score)) AS score
|
|
-- User join because comments could be empty
|
|
FROM
|
|
person u
|
|
LEFT JOIN comment c ON u.id = c.creator_id
|
|
AND c.deleted = 'f'
|
|
AND c.removed = 'f'
|
|
LEFT JOIN comment_like cl ON c.id = cl.comment_id
|
|
GROUP BY
|
|
u.id) cd
|
|
WHERE
|
|
ua.person_id = OLD.creator_id;
|
|
END IF;
|
|
RETURN NULL;
|
|
END
|
|
$$;
|
|
|
|
-- Person aggregate triggers
|
|
CREATE TRIGGER person_aggregates_post_count
|
|
AFTER INSERT OR DELETE OR UPDATE OF removed,
|
|
deleted ON post
|
|
FOR EACH ROW
|
|
EXECUTE PROCEDURE person_aggregates_post_count ();
|
|
|
|
CREATE TRIGGER person_aggregates_comment_count
|
|
AFTER INSERT OR DELETE OR UPDATE OF removed,
|
|
deleted ON comment
|
|
FOR EACH ROW
|
|
EXECUTE PROCEDURE person_aggregates_comment_count ();
|
|
|