/**
  * Get list of subordinate employee Ids as an array on integers
  * 
  * @return type Comma separated list or false if no subordinates
  */
 private function _getSubordinateIds($supervisorId)
 {
     $employeeService = new EmployeeService();
     $employeeService->setEmployeeDao(new EmployeeDao());
     $subordinatesList = $employeeService->getSupervisorEmployeeChain($supervisorId, true);
     $ids = array();
     foreach ($subordinatesList as $employee) {
         $ids[] = intval($employee->getEmpNumber());
     }
     return $ids;
 }
 protected function getEmployeeList()
 {
     $employeeService = new EmployeeService();
     $employeeList = array();
     if (Auth::instance()->hasRole(Auth::ADMIN_ROLE)) {
         $employeeList = $employeeService->getEmployeeList('empNumber', 'ASC', false);
     }
     if ($_SESSION['isSupervisor'] && trim(Auth::instance()->getEmployeeNumber()) != "") {
         $employeeList = $employeeService->getSupervisorEmployeeChain(Auth::instance()->getEmployeeNumber());
     }
     return $employeeList;
 }