Piwik\Archive\DataTableFactory::makeFromMetricsArray PHP Метод

    private function makeFromMetricsArray($data, $keyMetadata)
    {
        $table = new DataTable\Simple();
        if (!empty($data)) {
            $table->setAllTableMetadata(array_merge(DataCollection::getDataRowMetadata($data), $keyMetadata));
            DataCollection::removeMetadataFromDataRow($data);
            $table->addRow(new Row(array(Row::COLUMNS => $data)));
        } else {
            // if we're querying numeric data, we couldn't find any, and we're only
            // looking for one metric, add a row w/ one column w/ value 0. this is to
            // ensure that the PHP renderer outputs 0 when only one column is queried.
            // w/o this code, an empty array would be created, and other parts of Piwik
            // would break.
            if (count($this->dataNames) == 1 && $this->isNumericDataType()) {
                $name = reset($this->dataNames);
                $table->addRow(new Row(array(Row::COLUMNS => array($name => 0))));
            }
            $table->setAllTableMetadata($keyMetadata);
        }
        $result = $table;
        return $result;
    }