protected function processConfig ( $export ) {
        $metamodel = data_controller_get_metamodel();

        // replace report nid with report uuid
        foreach ( $export->config->items as $key => $item ) {
            if ( $item->type == 'report' ) {
                $reportNode = node_load($item->content);
                $export->config->items[$key]->content = get_node_field_value($reportNode,'field_report_uuid',0,'value',true);
            }
        }

        // array cast to deal with json decoder creating objects for arrays with missing keys
        $export->config->drilldowns = (array) $export->config->drilldowns;

        // replace report nid with report uuid
        // replace dashboard nid with dashboard uuid
        // replace dataset column reference with dataset uuid
        $updated_drilldowns = array();
        foreach ( $export->config->drilldowns as $drilldown ) {

            $reportNode = gd_report_get_by_nid($drilldown->report);
            $dashboardNode = gd_dashboard_get_by_nid($drilldown->dashboard);

            if ( !$reportNode || !$dashboardNode ) {
                $message = t('Skipping corrupt drilldown for node: @nodeId.',array('@nodeId' => $export->id));
                drupal_set_message($message, 'warning');
                LogHelper::log_warn($message);
            } else {
                $updated_drilldown = $drilldown;
                $updated_drilldown->report = get_node_field_value($reportNode,'field_report_uuid',0,'value',true);
                $updated_drilldown->column = DatasetExportHelper::getExportColumnName($drilldown->column,$metamodel);
                $updated_drilldown->dashboard = get_node_field_value($dashboardNode,'field_dashboard_uuid',0,'value',true);
                $updated_drilldown->id = count($updated_drilldowns);
                $updated_drilldowns[] = $updated_drilldown;
            }
        }

        $export->config->drilldowns = $updated_drilldowns;
    }
    protected function processConfig ( &$config ) {
        $metamodel = data_controller_get_metamodel();

        if ( !empty($config->model->datasets) ) {
            foreach ( $config->model->datasets as $key => $datasetName ) {
                $dataset = $metamodel->getDataset($datasetName);
                if (isset($dataset->uuid)) {
                    $config->model->datasets[$key] = $dataset->uuid;
                } else {
                    $config->model->datasets[$key] = NameSpaceHelper::removeNameSpace($dataset->name);
                }
            }
        }

        // update columns
        if ( !empty($config->model->columns) ) {
            foreach ( $config->model->columns as $key => $value ) {
                $config->model->columns[$key] = DatasetExportHelper::getExportColumnName($value,$metamodel);
            }
        }

        // update column configs
        if ( !empty($config->columnConfigs) ) {
            foreach ( $config->columnConfigs as $key => $value ) {
                $config->columnConfigs[$key]->columnId = DatasetExportHelper::getExportColumnName($value->columnId,$metamodel);
            }
        }

        // update column orders
        if ( !empty($config->model->columnOrder) ) {
            foreach ( $config->model->columnOrder as $key => $value ) {
                $config->model->columnOrder[$key] = DatasetExportHelper::getExportColumnName($value,$metamodel);
            }
        }

        // update column sorts
        if ( !empty($config->model->orderBy) ) {
            foreach ( $config->model->orderBy as $key => $value ) {
                $config->model->orderBy[$key]->column = DatasetExportHelper::getExportColumnName($value->column,$metamodel);
            }
        }

        // update visual series
        if ( !empty($config->visual->series) ) {
            $newSeries = array();
            foreach ( $config->visual->series as $key => $value ) {
                $newSeries[DatasetExportHelper::getExportColumnName($key,$metamodel)] = $value;
            }
            $config->visual->series = $newSeries;
        }

        // update traffic column
        if ( !empty($config->visual->trafficColumn) ) {
            $config->visual->trafficColumn = DatasetExportHelper::getExportColumnName($config->visual->trafficColumn,$metamodel);
        }

        // update color column
        if ( !empty($config->visual->useColumnDataForColor) ) {
            $config->visual->useColumnDataForColor = DatasetExportHelper::getExportColumnName($config->visual->useColumnDataForColor,$metamodel);
        }

        // update traffic columns
        if ( !empty($config->visual->traffic) ) {
            $newTraffic = array();
            foreach ( $config->visual->traffic as $key => $value ) {
                $value->trafficColumn = DatasetExportHelper::getExportColumnName($key,$metamodel);
                $newTraffic[DatasetExportHelper::getExportColumnName($key,$metamodel)] = $value;
            }
            $config->visual->traffic = $newTraffic;
        }

        // update filters
        if ( !empty($config->model->filters) ) {
            foreach ( $config->model->filters as $key => $value ) {
                $config->model->filters[$key]->column = DatasetExportHelper::getExportColumnName($value->column,$metamodel);
            }
        }
    }