OJSPaymentManager::acceptSubscriptionPayments PHP Method

    function acceptSubscriptionPayments()
    {
        $journal = $this->request->getJournal();
        return $this->isConfigured() && $journal->getSetting('acceptSubscriptionPayments');
    }

 /**
  * Get the HTML contents for this block.
  * @param $templateMgr object
  * @param $request PKPRequest
  * @return $string
  */
 function getContents(&$templateMgr, $request)
 {
     $journal =& $request->getJournal();
     $journalId = $journal ? $journal->getId() : null;
     if (!$journal) {
         return '';
     }
     if ($journal->getSetting('publishingMode') != PUBLISHING_MODE_SUBSCRIPTION) {
         return '';
     }
     $user =& $request->getUser();
     $userId = $user ? $user->getId() : null;
     $templateMgr->assign('userLoggedIn', isset($userId) ? true : false);
     if (isset($userId)) {
         $subscriptionDao =& DAORegistry::getDAO('IndividualSubscriptionDAO');
         $individualSubscription =& $subscriptionDao->getSubscriptionByUserForJournal($userId, $journalId);
         $templateMgr->assign_by_ref('individualSubscription', $individualSubscription);
     }
     // If no individual subscription or if not valid, check for institutional subscription
     if (!isset($individualSubscription) || !$individualSubscription->isValid()) {
         $ip = $request->getRemoteAddr();
         $domain = Request::getRemoteDomain();
         $subscriptionDao =& DAORegistry::getDAO('InstitutionalSubscriptionDAO');
         $subscriptionId = $subscriptionDao->isValidInstitutionalSubscription($domain, $ip, $journalId);
         if ($subscriptionId) {
             $institutionalSubscription =& $subscriptionDao->getSubscription($subscriptionId);
             $templateMgr->assign_by_ref('institutionalSubscription', $institutionalSubscription);
             $templateMgr->assign('userIP', $ip);
         }
     }
     import('classes.payment.ojs.OJSPaymentManager');
     $paymentManager = new OJSPaymentManager($request);
     if (isset($individualSubscription) || isset($institutionalSubscription)) {
         $acceptSubscriptionPayments = $paymentManager->acceptSubscriptionPayments();
         $templateMgr->assign('acceptSubscriptionPayments', $acceptSubscriptionPayments);
     }
     $acceptGiftSubscriptionPayments = $paymentManager->acceptGiftSubscriptionPayments();
     $templateMgr->assign('acceptGiftSubscriptionPayments', $acceptGiftSubscriptionPayments);
     return parent::getContents($templateMgr, $request);
 }