/**
   * 查看已上课记录列表
   *
   * @return
   */
  @SuppressWarnings("unchecked")
  public String lessonRecords() {
    xyxx.setId(sid);

    page = new Page();
    page.setCur(ct);
    page.setPageSize(Constants.PAGE_SIZE);

    skjl.setXyxx(xyxx);
    if (!StringUtils.isBlank(type)) {
      skjl.setLessonType(LessonTypeDto.getLessonType(type));
    }
    if (!StringUtils.isBlank(kq)) {
      skjl.setKq(KqDto.getKq(kq));
    }
    skjl.setSignDateStart(start);
    skjl.setSignDateEnd(end);
    Map<String, Object> result =
        commonService.getLessonRecords(page, skjl, Constants.LESSONRECORD_RECORD);
    page = (Page) result.get(Constants.RESULT_MAP_PAGE);
    lessonRecords = (List<Skjl>) result.get(Constants.RESULT_MAP_LIST);
    return SUCCESS;
  }