Piwik\DataTable::getRowsCountWithoutSummaryRow PHP Метод

    public function getRowsCountWithoutSummaryRow()
    {
        return count($this->rows);
    }

 /**
  * See {@link Sort}.
  *
  * @param DataTable $table
  * @return mixed
  */
 public function filter($table)
 {
     if ($table instanceof Simple) {
         return;
     }
     if (empty($this->columnToSort)) {
         return;
     }
     if (!$table->getRowsCountWithoutSummaryRow()) {
         return;
     }
     $row = $table->getFirstRow();
     if ($row === false) {
         return;
     }
     $config = new Sorter\Config();
     $sorter = new Sorter($config);
     $config->naturalSort = $this->naturalSort;
     $config->primaryColumnToSort = $sorter->getPrimaryColumnToSort($table, $this->columnToSort);
     $config->primarySortOrder = $sorter->getPrimarySortOrder($this->order);
     $config->primarySortFlags = $sorter->getBestSortFlags($table, $config->primaryColumnToSort);
     $config->secondaryColumnToSort = $sorter->getSecondaryColumnToSort($row, $config->primaryColumnToSort);
     $config->secondarySortOrder = $sorter->getSecondarySortOrder($this->order, $config->secondaryColumnToSort);
     $config->secondarySortFlags = $sorter->getBestSortFlags($table, $config->secondaryColumnToSort);
     // secondary sort should not be needed for all other sort flags (eg string/natural sort) as label is unique and would make it slower
     $isSecondaryColumnSortNeeded = $config->primarySortFlags === SORT_NUMERIC;
     $config->isSecondaryColumnSortEnabled = $this->isSecondaryColumnSortEnabled && $isSecondaryColumnSortNeeded;
     $this->sort($sorter, $table);
 }