OJSPaymentManager::fastTrackEnabled PHP Méthode

    function fastTrackEnabled()
    {
        $journal = $this->request->getJournal();
        return $this->isConfigured() && $journal->getSetting('fastTrackFeeEnabled') && $journal->getSetting('fastTrackFee') > 0;
    }

 /**
  * Display the form.
  */
 function display()
 {
     $journal =& $this->request->getJournal();
     $user =& $this->request->getUser();
     $templateMgr =& TemplateManager::getManager();
     // Get article file for this article
     $articleFileDao =& DAORegistry::getDAO('ArticleFileDAO');
     $articleFiles =& $articleFileDao->getArticleFilesByArticle($this->articleId);
     $templateMgr->assign_by_ref('files', $articleFiles);
     $templateMgr->assign_by_ref('journal', $journal);
     // Set up required Payment Related Information
     import('classes.payment.ojs.OJSPaymentManager');
     $paymentManager = new OJSPaymentManager($this->request);
     if ($paymentManager->submissionEnabled() || $paymentManager->fastTrackEnabled() || $paymentManager->publicationEnabled()) {
         $templateMgr->assign('authorFees', true);
         $completedPaymentDao =& DAORegistry::getDAO('OJSCompletedPaymentDAO');
         $articleId = $this->articleId;
         if ($paymentManager->submissionEnabled()) {
             $templateMgr->assign_by_ref('submissionPayment', $completedPaymentDao->getSubmissionCompletedPayment($journal->getId(), $articleId));
             $templateMgr->assign('manualPayment', $journal->getSetting('paymentMethodPluginName') == 'ManualPayment');
         }
         if ($paymentManager->fastTrackEnabled()) {
             $templateMgr->assign_by_ref('fastTrackPayment', $completedPaymentDao->getFastTrackCompletedPayment($journal->getId(), $articleId));
         }
     }
     parent::display();
 }