protected void restoreLessonStudents() {
if (jC.getVisits() != null) lessonsSelector.setLessonTitle(selectedLesson);
if (!selectedGroup.isEmpty() && selectedLesson != null) {
lessonsSelector.restoreState(jC.getLessons(selectedGroup, selectedSemester));
studentList.restoreState(jC.getStudents(selectedGroup));
} else {
groupSelectorSeparateLine.setVisibility(View.INVISIBLE);
}
}
