def follow_label
  follow_set_card.follow_label
end

def followed_by? user_id=nil
  follow_set_card.all_members_followed_by? user_id
end

def follow_set_card
  Card.fetch name, :type
end

def list_direct_followers?
  true
end

format :html do
  def related_by_type_items
    super.unshift ["#{card.name} cards", [card, :type, :by_name], { mark: :absolute }]
  end
end