lib/pkp/pages/announcement/PKPAnnouncementHandler.inc.php

   1 <?php
   2
   3 /**
   4  * @file PKPAnnouncementHandler.inc.php
   5  *
   6  * Copyright (c) 2000-2009 John Willinsky
   7  * Distributed under the GNU GPL v2. For full terms see the file docs/COPYING.
   8  *
   9  * @class PKPAnnouncementHandler
  10  * @ingroup pages_announcement
  11  *
  12  * @brief Handle requests for public announcement functions.
  13  */
  14
  15 import('handler.Handler');
  16
  17 class PKPAnnouncementHandler extends Handler {
  18
  19         /**
  20          * Display announcement index page.
  21          */
  22         function index() {
  23                 $this->validate();
  24                 $this->setupTemplate();
  25
  26                 if ($this->_getAnnouncementsEnabled()) {
  27                         $announcementDao =& DAORegistry::getDAO('AnnouncementDAO');
  28                         $rangeInfo =& Handler::getRangeInfo('announcements');
  29
  30                         $announcements =& $this->_getAnnouncements($rangeInfo);
  31                         $announcementsIntroduction = $this->_getAnnouncementsIntroduction();
  32
  33                         $templateMgr =& TemplateManager::getManager();
  34                         $templateMgr->assign('announcements', $announcements);
  35                         $templateMgr->assign('announcementsIntroduction', $announcementsIntroduction);
  36                         $templateMgr->display('announcement/index.tpl');
  37                 } else {
  38                         Request::redirect();
  39                 }
  40
  41         }
  42
  43         /**
  44          * View announcement details.
  45          * @param $args array optional, first parameter is the ID of the announcement to display
  46          */
  47         function view($args = array()) {
  48                 $this->validate();
  49                 $this->setupTemplate();
  50
  51                 $announcementId = !isset($args) || empty($args) ? null : (int) $args[0];
  52                 $announcementDao =& DAORegistry::getDAO('AnnouncementDAO');
  53
  54                 if ($this->_getAnnouncementsEnabled() && $this->_announcementIsValid($announcementId)) {
  55                         $announcement =& $announcementDao->getAnnouncement($announcementId);
  56
  57                         if ($announcement->getDateExpire() == null || strtotime($announcement->getDateExpire()) > time()) {
  58                                 $templateMgr =& TemplateManager::getManager();
  59                                 $templateMgr->assign('announcement', $announcement);
  60                                 if ($announcement->getTypeId() == null) {
  61                                         $templateMgr->assign('announcementTitle', $announcement->getLocalizedTitle());
  62                                 } else {
  63                                         $templateMgr->assign('announcementTitle', $announcement->getAnnouncementTypeName() . ": " . $announcement->getLocalizedTitle());
  64                                 }
  65                                 $templateMgr->append('pageHierarchy', array(PKPRequest::url(null, 'announcement'), 'announcement.announcements'));
  66                                 $templateMgr->display('announcement/view.tpl');
  67                         } else {
  68                                 Request::redirect(null, null, 'announcement');
  69                         }
  70                 } else {
  71                                 Request::redirect(null, null, 'announcement');
  72                 }
  73         }
  74
  75         /**
  76          * Setup common template variables.
  77          * @param $subclass boolean set to true if caller is below this handler in the hierarchy
  78          */
  79         function setupTemplate($subclass = false) {
  80                 parent::setupTemplate();
  81
  82                 $templateMgr =& TemplateManager::getManager();
  83                 $templateMgr->setCacheability(CACHEABILITY_PUBLIC);
  84                 $templateMgr->assign('pageHierachy', array(array(Request::url(null, null, 'announcements'), 'announcement.announcements')));
  85         }
  86
  87         function _getAnnouncementsEnabled() {
  88                 fatalError('Abstract Method');
  89         }
  90
  91         function &_getAnnouncements($rangeInfo = null) {
  92                 fatalError('Abstract Method');
  93         }
  94
  95         function _getAnnouncementsIntroduction() {
  96                 fatalError('Abstract Method');
  97         }
  98
  99         function _announcementIsValid($announcementId) {
 100                 fatalError('Abstract Method');
 101         }
 102 }
 103
 104 ?>