@RequestMapping(value = "/marks", method = RequestMethod.GET)
  public String getMarks(Model model) {
    User user = (User) SecurityContextHolder.getContext().getAuthentication().getPrincipal();
    model.addAttribute("current_user", user);
    Student currentStudent = studentService.getOne(user.getId());

    if (user.getRole().equals(Role.ROLE_STUDENT))
      model.addAttribute("homework", currentStudent.getGroup().getHomeworks());

    model.addAttribute("marks", firstTenMarks(currentStudent.getMarks()));
    return "student/marks";
  }