protected function internalFetch() {
        if(empty($this->memberCount) || sizeof($this->members) == $this->memberCount) {
            $page = 0;
        } else {
            $page = 1;
        }

        do {
            $totalPages = $this->fetchPage(++$page);
        } while($page < $totalPages);

        $this->fetchTime = time();
    }