BcAuthComponent::saveSerial PHP Method

    public function saveSerial()
    {
        $user = $this->user();
        if (!empty($this->fields['serial']) && $user) {
            $serial = $this->getSerial();
            $Model = $model = $this->getModel();
            if ($serial) {
                $user[$this->userModel][$this->fields['serial']] = $serial;
                $Model->set($user);
                return $Model->save();
            }
        }
    }