class TopicListItemSerializer < ListableTopicSerializer attributes :views, :like_count, :has_summary, :archetype, :last_poster_username, :category_id, :op_like_count, :pinned_globally, :bookmarked_post_numbers, :liked_post_numbers, :tags has_many :posters, serializer: TopicPosterSerializer, embed: :objects has_many :participants, serializer: TopicPosterSerializer, embed: :objects def posters object.posters || [] end def op_like_count object.first_post && object.first_post.like_count end def last_poster_username posters.find { |poster| poster.user.id == object.last_post_user_id }.try(:user).try(:username) end def participants object.participants_summary || [] end def include_bookmarked_post_numbers? include_post_action? :bookmark end def include_liked_post_numbers? include_post_action? :like end def include_post_action?(action) object.user_data && object.user_data.post_action_data && object.user_data.post_action_data.key?(PostActionType.types[action]) end def liked_post_numbers object.user_data.post_action_data[PostActionType.types[:like]] end def bookmarked_post_numbers object.user_data.post_action_data[PostActionType.types[:bookmark]] end def include_participants? object.private_message? end def include_op_like_count? # PERF: long term we probably want a cheaper way of looking stuff up # this is rather odd code, but we need to have op_likes loaded somehow # simplest optimisation is adding a cache column on topic. object.association(:first_post).loaded? end def include_tags? SiteSetting.tagging_enabled end def tags object.tags end end