plugins/generic/announcementFeed/AnnouncementFeedGatewayPlugin.inc.php

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<?php

import('classes.plugins.GatewayPlugin');

class AnnouncementFeedGatewayPlugin extends GatewayPlugin {
   function getHideManagement() {
      return true;
   }

   function getName() {
      return 'AnnouncementFeedGatewayPlugin';
   }

   function getDisplayName() {
      return __('plugins.generic.announcementfeed.displayName');
   }

   function getDescription() {
      return __('plugins.generic.announcementfeed.description');
   }

   function &getAnnouncementFeedPlugin() {
      $plugin =& PluginRegistry::getPlugin('generic', 'AnnouncementFeedPlugin');
      return $plugin;
   }

   function getPluginPath() {
      $plugin =& $this->getAnnouncementFeedPlugin();
      return $plugin->getPluginPath();
   }

   function getTemplatePath() {
      $plugin =& $this->getAnnouncementFeedPlugin();
      return $plugin->getTemplatePath() . 'templates/';
   }

   function fetch($args) {
      // Make sure we're within a Conference context
      $conference =& Request::getConference();
      $schedConf =& Request::getSchedConf();
      if (!$conference) return false;

      // Make sure announcements and plugin are enabled
      $announcementsEnabled = $conference->getSetting('enableAnnouncements');
      $announcementFeedPlugin =& $this->getAnnouncementFeedPlugin();
      if (!$announcementsEnabled || !$announcementFeedPlugin->getEnabled()) return false;

      // Make sure the feed type is specified and valid
      $type = array_shift($args);
      $typeMap = array(
         'rss' => 'rss.tpl',
         'rss2' => 'rss2.tpl',
         'atom' => 'atom.tpl'
      );
      $mimeTypeMap = array(
         'rss' => 'application/rdf+xml',
         'rss2' => 'application/rss+xml',
         'atom' => 'application/atom+xml'
      );
      if (!isset($typeMap[$type])) return false;

      // Get limit setting, if any 
      $limitRecentItems = $announcementFeedPlugin->getSetting($conference->getId(), 0, 'limitRecentItems');
      $recentItems = (int) $announcementFeedPlugin->getSetting($conference->getId(), 0, 'recentItems');

      $announcementDao =& DAORegistry::getDAO('AnnouncementDAO');
      $conferenceId = $conference->getId();
      if ($schedConf) {
         $schedConfId = $schedConf->getId();
      } else {
         $schedConfId = 0;
      }
      if ($limitRecentItems && $recentItems > 0) {
         import('db.DBResultRange');
         $rangeInfo = new DBResultRange($recentItems, 1);
         $announcements =& $announcementDao->getAnnouncementsNotExpiredByConferenceId($conferenceId, $schedConfId, $rangeInfo);
      } else {
         $announcements =& $announcementDao->getAnnouncementsNotExpiredByConferenceId($conferenceId, $schedConfId);
      }

      // Get date of most recent announcement
      $lastDateUpdated = $announcementFeedPlugin->getSetting($conference->getId(), $schedConfId, 'dateUpdated');
      if ($announcements->wasEmpty()) {
         if (empty($lastDateUpdated)) { 
            $dateUpdated = Core::getCurrentDate(); 
            $announcementFeedPlugin->updateSetting($conference->getId(), $schedConfId, 'dateUpdated', $dateUpdated, 'string');         
         } else {
            $dateUpdated = $lastDateUpdated;
         }
      } else {
         $mostRecentAnnouncement =& $announcementDao->getMostRecentAnnouncementByConferenceId($conferenceId, $schedConfId);
         $dateUpdated = $mostRecentAnnouncement->getDatetimePosted();
         if (empty($lastDateUpdated) || (strtotime($dateUpdated) > strtotime($lastDateUpdated))) { 
            $announcementFeedPlugin->updateSetting($conference->getId(), $schedConfId, 'dateUpdated', $dateUpdated, 'string');         
         }
      }

      $versionDao =& DAORegistry::getDAO('VersionDAO');
      $version =& $versionDao->getCurrentVersion();

      $templateMgr =& TemplateManager::getManager();
      $templateMgr->assign('selfUrl', Request::getCompleteUrl()); 
      $templateMgr->assign('dateUpdated', $dateUpdated);
      $templateMgr->assign('ocsVersion', $version->getVersionString());
      $templateMgr->assign_by_ref('announcements', $announcements->toArray());
      $templateMgr->assign_by_ref('conference', $conference);
      $templateMgr->assign_by_ref('schedConf', $schedConf);

      $templateMgr->display($this->getTemplatePath() . $typeMap[$type], $mimeTypeMap[$type]);

      return true;
   }
}

?>

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