public function getData()
    {
        $data = [];

        foreach (static::$_classFields[get_called_class()] as $field => $options) {
            $data[$field] = $this->_getFieldValue($field);
        }

        if ($this->validationErrors) {
            $data['validationErrors'] = $this->validationErrors;
        }

        return $data;
    }