controllers/grid/content/announcements/AnnouncementGridHandler.inc.php

<?php

import('lib.pkp.classes.controllers.grid.GridHandler');
import('lib.pkp.classes.controllers.grid.DataObjectGridCellProvider');

class AnnouncementGridHandler extends GridHandler {
   function AnnouncementGridHandler() {
      parent::GridHandler();
   }


   //
   // Overridden template methods
   //
   function authorize($request, $args, $roleAssignments, $requireAnnouncementsEnabled = true) {

      import('lib.pkp.classes.security.authorization.ContextRequiredPolicy');
      $this->addPolicy(new ContextRequiredPolicy($request));

      $returner = parent::authorize($request, $args, $roleAssignments);

      // Ensure announcements are enabled.
      $press =& $request->getPress();
      if ($requireAnnouncementsEnabled && !$press->getSetting('enableAnnouncements')) {
         return false;
      }

      $announcementId = $request->getUserVar('announcementId');
      if ($announcementId) {
         // Ensure announcement is valid and for this context
         $announcementDao =& DAORegistry::getDAO('AnnouncementDAO'); /* @var $announcementDao AnnouncementDAO */
         if ($announcementDao->getAnnouncementAssocType($announcementId) != ASSOC_TYPE_PRESS &&
            $announcementDao->getAnnouncementAssocId($announcementId) != $press->getId()) {
            return false;
         }
      }

      return $returner;
   }

   function initialize(&$request) {
      parent::initialize($request);

      // Set the no items row text
      $this->setEmptyRowText('announcement.noneExist');

      $press =& $request->getPress();

      // Columns
      import('controllers.grid.content.announcements.AnnouncementGridCellProvider');
      $announcementCellProvider = new AnnouncementGridCellProvider();
      $this->addColumn(
         new GridColumn('title',
            'common.title',
            null,
            'controllers/grid/gridCell.tpl',
            $announcementCellProvider,
            array('width' => 60)
         )
      );

      $this->addColumn(
         new GridColumn('type',
            'common.type',
            null,
            'controllers/grid/gridCell.tpl',
            $announcementCellProvider
         )
      );

      $cellProvider = new DataObjectGridCellProvider();
      $this->addColumn(
         new GridColumn(
            'datePosted',
            'announcement.posted',
            null,
            'controllers/grid/gridCell.tpl',
            $cellProvider
         )
      );
   }

   function loadData($request, $filter) {
      $press =& $request->getPress();
      $announcementDao =& DAORegistry::getDAO('AnnouncementDAO');
      $pressAnnouncements =& $announcementDao->getAnnouncementsNotExpiredByAssocId(ASSOC_TYPE_PRESS, $press->getId());

      return $pressAnnouncements;
   }


   //
   // Public grid actions.
   //
   function moreInformation($args, &$request) {
      $announcementId = (int)$request->getUserVar('announcementId');
      $press =& $request->getPress();
      $pressId = $press->getId();

      import('controllers.grid.content.announcements.form.AnnouncementForm');
      $announcementForm = new AnnouncementForm($pressId, $announcementId, true);

      $announcementForm->initData($args, $request);

      $json = new JSONMessage(true, $announcementForm->fetch($request));
      return $json->getString();
   }
}

?>