Piwik\DataTable\Filter\Sort::sort PHP Method

    private function sort(Sorter $sorter, DataTable $table)
    {
        $sorter->sort($table);
        if ($table->isSortRecursiveEnabled()) {
            foreach ($table->getRowsWithoutSummaryRow() as $row) {
                $subTable = $row->getSubtable();
                if ($subTable) {
                    $subTable->enableRecursiveSort();
                    $this->sort($sorter, $subTable);
                }
            }
        }
    }