json.username @user.full_name
json.login @user.login
json.user_id @user.id
json.image_url url_to_avatar(@user)
json.admin @user.admin?
json.is_teacher @user.user_extension&.teacher?
json.tidding_count 0
json.user_phone_binded @user.phone.present?
if @course
  json.course_identity @course_identity
  json.course_name @course.name
  json.course_public @course.is_public
  if params[:group_info]
    json.group_info @course.teacher_group(@user.id) if @course_identity < Course::STUDENT
  end
end

if params[:school]
  json.user_school @user.school_name
end