class DetailedUserBadgeSerializer < BasicUserBadgeSerializer has_one :granted_by, serializer: UserBadgeSerializer::UserSerializer attributes :post_number, :topic_id, :topic_title def include_post_number? object.post end alias :include_topic_id? :include_post_number? alias :include_topic_title? :include_post_number? def post_number object.post.post_number if object.post end def topic_id object.post.topic_id if object.post end def topic_title object.post.topic.title if object.post && object.post.topic end end