public function getStudentChartData()
 {
     $studentId = !is_null(\Input::get('studentId')) ? \Input::get('studentId') : null;
     $gradebook = new GradebookComponent();
     return $gradebook->getStudentChartData($studentId);
 }
 public function getSetOfUsersMilestoneInfo()
 {
     $instanceId = \Input::get('experienceInstanceId');
     $userIds = \Input::get('userIds');
     $gradebook = new GradebookComponent();
     return $gradebook->getSetOfUsersMilestoneInfo($instanceId, $userIds);
 }