lemmy/migrations/2023-06-19-120700_no_double_deletion/down.sql
Dessalines be1389420b
Adding SQL format checking via pg_format / pgFormatter (#3740)
* 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.
2023-08-02 12:44:51 -04:00

20 lines
502 B
PL/PgSQL

-- This file should undo anything in `up.sql`
CREATE OR REPLACE FUNCTION was_removed_or_deleted (TG_OP text, OLD record, NEW record)
RETURNS boolean
LANGUAGE plpgsql
AS $$
BEGIN
IF (TG_OP = 'INSERT') THEN
RETURN FALSE;
END IF;
IF (TG_OP = 'DELETE') THEN
RETURN TRUE;
END IF;
RETURN TG_OP = 'UPDATE'
AND ((OLD.deleted = 'f'
AND NEW.deleted = 't')
OR (OLD.removed = 'f'
AND NEW.removed = 't'));
END
$$;