public function deleteTeacher($teacherId)
 {
     $instId = session('instId');
     if (!$instId) {
         return;
     }
     $model = new \Home\Model\TeacherModel();
     $operator = new \Home\Model\OperatorModel();
     try {
         $model->startTrans();
         $result = $model->deleteTeacher($instId, $teacherId);
         $operator->deleteOperatorByTeacherId($instId, $teacherId);
         $model->commit();
         $data = "true";
     } catch (Exception $e) {
         $model->rollback();
         $data = "false";
     }
     $this->ajaxReturn($data);
 }
 public function editSuperAdmin($teacher)
 {
     $instId = session('instId');
     try {
         $operator = new \Home\Model\OperatorModel();
         $operatorId = $operator->updateSuperAdmin($instId, $teacher);
         session('teacherId', $teacher);
         $data = "true";
     } catch (Exception $e) {
         $data = "false";
     }
     $this->ajaxReturn($data);
 }
 public function checkLoginname($loginname)
 {
     $operator = new \Home\Model\OperatorModel();
     $result = $operator->checkLoginname($loginname);
     if (!empty($result) && count($result) >= 1) {
         $data = "false";
     } else {
         $data = "true";
     }
     $this->ajaxReturn($data);
 }