Pimcore\Model\Site\Listing\Dao::load PHP Method

    public function load()
    {
        $sites = [];
        $sitesData = $this->db->fetchCol("SELECT id FROM sites" . $this->getCondition() . $this->getOrder() . $this->getOffsetLimit(), $this->model->getConditionVariables());
        foreach ($sitesData as $siteData) {
            $sites[] = Model\Site::getById($siteData);
        }
        $this->model->setSites($sites);
        return $sites;
    }