discourse/app/serializers/suggested_topic_serializer.rb

# frozen_string_literal: true

class SuggestedTopicSerializer < ListableTopicSerializer
  include TopicTagsMixin

  # need to embed so we have users
  # front page json gets away without embedding
  class SuggestedPosterSerializer < ApplicationSerializer
    attributes :extras, :description
    has_one :user, serializer: PosterSerializer, embed: :objects
  end

  attributes :archetype,
             :like_count,
             :views,
             :category_id,
             :featured_link,
             :featured_link_root_domain,
             :op_like_count
  has_many :posters, serializer: SuggestedPosterSerializer, embed: :objects

  def op_like_count
    object.first_post && object.first_post.like_count
  end

  def posters
    object.posters || []
  end

  def include_featured_link?
    SiteSetting.topic_featured_link_enabled
  end

  def featured_link
    object.featured_link
  end

  def include_featured_link_root_domain?
    SiteSetting.topic_featured_link_enabled && object.featured_link
  end
end