static function exportByNode( $nodeID )
    {
        if ( !$nodeID )
            return array( 'error' => array( 'error_type' => 'kernel',
                                            'error_code' => eZError::KERNEL_NOT_FOUND ) );

        $rssExport = eZPersistentObject::fetchObject( eZRSSExport::definition(),
                                                null,
                                                array( 'node_id' => $nodeID,
                                                       'status' => eZRSSExport::STATUS_VALID ),
                                                true );

        return array( 'result' => $rssExport );
    }