lemmy/migrations/2023-06-19-120700_no_double.../down.sql

21 lines
502 B
MySQL
Raw Permalink Normal View History

-- 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 $$
BEGIN
IF (TG_OP = 'INSERT') THEN
RETURN FALSE;
END IF;
IF (TG_OP = 'DELETE') THEN
RETURN TRUE;
END IF;
RETURN TG_OP = 'UPDATE'
AND ((OLD.deleted = 'f'
AND NEW.deleted = 't')
OR (OLD.removed = 'f'
AND NEW.removed = 't'));
END
$$;