private function getUplineId($custId)
    {
        /** @var \Praxigento\Downline\Repo\Data\Customer $entity */
        $entity = $this->daoDwnl->getById($custId);
        $result = $entity->getParentRef();
        return $result;
    }
private function getUplineId($custId)
    {
        /** @var \Praxigento\Downline\Repo\Data\Customer $entity */
        $entity = $this->daoDwnl->getById($custId);
        $result = $entity->getParentRef();
        return $result;
    }
private function getUplineId ( $ custId ) { /** @var \Praxigento\Downline\Repo\Data\Customer $entity */ $ entity = $ this -> daoDwnl -> getById ( $ custId ) ; $ result = $ entity -> getParentRef ( ) ; return $ result ; }
Get upline ID for current customer.

@param int $custId
@return int
Get upline ID for current customer .