public function gettodayadjustmentsAction()
 {
     $request = $this->getRequest();
     $target_staff_id = $request->getParam('staff_id');
     $start_dateobj = new Zend_Date($request->getParam('period_date'));
     $start_date = $start_dateobj->toString('YYYY-MM-dd');
     $result = Acad_Model_DbTable_FacultyAdjustment::getAdjustment($target_staff_id, $start_date);
     /*if(count($adjustmentResultSet) > 0 )
     		{
     			$this->objtimetable->dbselect->reset();
     			$this->objtimetable->dbselect->distinct ()->group('period_number');
     			$cols = array ('degree_id', 'department_id', 'semester_id', 'period_number', 'subject_code', 'subject_mode_id' );
     			$result = $this->objtimetable->getadjustmenttimetableinfo ( $adjustmentResultSet, $cols );
     
     		}*/
     echo json_encode($result);
 }