protected function _getComplexRegistryData($valueOptions, $value) {
        $idMethod = @$valueOptions['id_method'] ?
            $valueOptions['id_method'] : 'getId';
        $model = @$valueOptions['model'] ?
            $valueOptions['model'] : Mage::helper('turpentine/data')
                ->getModelName($value);
        $data = array(
            'model'         => $model,
            'id'            => $value->{$idMethod}(),
        );
        return $data;
    }