StatsService.inc.php

<?php
namespace APP\Services;
 
class StatsService extends \PKP\Services\PKPStatsService {
   protected function _getQueryBuilder($args = []) {
      $statsQB = parent::_getQueryBuilder($args);
      if (!empty(($args['seriesIds']))) {
         $statsQB->filterBySections($args['seriesIds']);
      }
      return $statsQB;
   }
}