protected function getFormResultClass()
    {
        $result = '';
        $formObject = $this->formService->getFormObject();

        if ($formObject->formWasSubmitted()
            && $formObject->hasFormResult()
        ) {
            $fieldResult = $formObject->getFormResult()->forProperty($this->fieldName);
            $result = $this->getPropertyResultClass($fieldResult);
        }

        return $result;
    }