public function on_sbas_where_i_am(ACL $ACL, Array $rights)
    {
        $this->sbas_restrictions = true;
        $databoxes = array_keys($ACL->get_granted_sbas($rights));

        if (count($this->sbas_ids) > 0)
            $this->sbas_ids = array_intersect($this->sbas_ids, $databoxes);
        else
            $this->sbas_ids = $databoxes;

        $this->total = $this->page = $this->total_page = null;

        return $this;
    }