json.shixun_list @results do |obj|
  json.(obj, :id, :identifier)
  json.title obj.name
  json.level level_to_s(obj.trainee)
  json.study_count obj.myshixuns_count
  json.author_name obj.user.real_name
  json.author_img url_to_avatar(obj.user)
end
json.shixuns_count @total_count