DEFAULT_DATA[:student_clazzes].each do |student_clazz, student_clazz_info|
      map_student = @default_students.find{|s| s.user.login == student_clazz_info[:student]}
      if map_student
        clazz_names = student_clazz_info[:clazz_names].split(",").map{|c| c.strip }
        clazz_names.each do |clazz_name|