public function actionCreate()
 {
     $data = $_POST;
     //will be empty if CSRF authentication fails
     if (!empty($data)) {
         $data['description'] = trim($data['description']);
         $data['username'] = trim($data['username']);
         $data['user_group'] = trim($data['user_group']);
         //FORM VALIDATION HERE
         $errors = array();
         //username is required
         if (strlen($data['username']) == 0) {
             array_push($errors, 'USERNAME_ERROR: Username is required');
             //username should be unique
         } else {
             if (ApplicationPointPersons::model()->exists('username = :username AND application_id = :application_id', array(":username" => $data['username'], ":application_id" => $data['application_id']))) {
                 array_push($errors, 'USERNAME_ERROR: Point person with this username already exists');
             }
         }
         //usergroup is required
         if (strlen($data['user_group']) == 0) {
             array_push($errors, 'USERGROUP_ERROR: User Group is required');
         }
         //data is good
         if (count($errors) == 0) {
             $point_person = new ApplicationPointPersons();
             $point_person->application_id = $data['application_id'];
             $point_person->username = $data['username'];
             $point_person->user_group = $data['user_group'];
             $point_person->description = $data['description'];
             $point_person->date_created = date("Y-m-d H:i:s");
             $point_person->created_by = Yii::app()->user->name;
             $point_person->date_updated = '0000-00-00 00:00:00';
             $point_person->save();
             echo CJSON::encode(array('type' => 'success', 'data' => ''));
         } else {
             echo CJSON::encode(array('type' => 'error', 'data' => implode(',', $errors)));
         }
     } else {
         echo CJSON::encode(array('type' => 'error', 'data' => 'CSRF_ERROR: CSRF Token did not match'));
     }
 }