create trigger if not exists update_last_updated_users
  after update on users
  when OLD.last_updated = NEW.last_updated or OLD.last_updated is null
BEGIN
  update users set last_updated = (select unixepoch()) where id=NEW.id;
END;

create trigger if not exists update_last_updated_invites
  after update on invites
  when OLD.last_updated = NEW.last_updated or OLD.last_updated is null
BEGIN
  update invites set last_updated = (select unixepoch()) where id=NEW.id;
END;

create trigger if not exists insert_user_follows
  after insert on users
BEGIN
  insert into follows (user) values (NEW.id);
END;

create trigger if not exists delete_user_follows
  after delete on users
BEGIN
  delete from follows where user = OLD.id;
END;

create trigger if not exists update_last_updated_watches
  after update on watches
  when OLD.last_updated = NEW.last_updated or OLD.last_updated is null
BEGIN
  update watches set last_updated = (select unixepoch()) where id=NEW.id;
END;

create trigger if not exists update_last_updated_watch_quests
  after update on watch_quests
  when OLD.last_updated = NEW.last_updated or OLD.last_updated is null
BEGIN
  update watch_quests set last_updated = (select unixepoch()) where watch=NEW.watch and user=NEW.user;
END;

create trigger if not exists update_last_updated_follows
  after update on follows
  when OLD.last_updated = NEW.last_updated or OLD.last_updated is null
BEGIN
  update follows set last_updated = (select unixepoch()) where id=NEW.id;
END;

create trigger if not exists update_last_updated_watch_notes
  after update on watch_notes
  when OLD.last_updated = NEW.last_updated or OLD.last_updated is null
BEGIN
  update watch_notes set last_updated = (select unixepoch()) where id=NEW.id;
END;