public function _load_identifiers()
 {
     if (!isset($this->person->rel_id)) {
         throw new Exception('cannot display name data for a temporary person without the relationship id');
     }
     $user = MyRelationshipPerson::tempid_meta_select($this->person->wp_id, $this->person->rel_id);
     $this->person->first_name = $user['first_name'];
     $this->person->last_name = $user['last_name'];
 }