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<?php
/**
* Kunena Component
* @package Kunena.Framework
* @subpackage Forum.Announcement
*
* @copyright (C) 2008 - 2014 Kunena Team. All rights reserved.
* @license http://www.gnu.org/copyleft/gpl.html GNU/GPL
* @link http://www.kunena.org
**/
defined ( '_JEXEC' ) or die ();
/**
* Class KunenaForumAnnouncementHelper
*/
abstract class KunenaForumAnnouncementHelper {
/**
* @var KunenaForumAnnouncement[]
*/
public static $_instances = false;
/**
* Returns the global KunenaForumAnnouncement object, only creating it if it doesn't already exist.
*
* @param int $identifier Announcement to load - Can be only an integer.
* @param bool $reload
*
* @return KunenaForumAnnouncement
*/
static public function get($identifier = null, $reload = false) {
if ($identifier instanceof KunenaForumAnnouncement) {
return $identifier;
}
if (!is_numeric($identifier)) {
return new KunenaForumAnnouncement;
}
$id = intval ( $identifier );
if (empty ( self::$_instances [$id] )) {
self::$_instances [$id] = new KunenaForumAnnouncement (array('id'=>$id));
self::$_instances [$id]->load();
} elseif ($reload) {
self::$_instances [$id]->load();
}
return self::$_instances [$id];
}
/**
* @param string $layout
* @param bool $xhtml
*
* @return string
*/
static public function getUrl($layout = null, $xhtml = true) {
$uri = self::getUri($layout);
return KunenaRoute::_($uri, $xhtml);
}
/**
* @param string $layout
*
* @return JUri
*/
static public function getUri($layout = null) {
$uri = new JUri('index.php?option=com_kunena&view=announcement');
if ($layout) $uri->setVar('layout', $layout);
return $uri;
}
/**
* @param int $start
* @param int $limit
* @param bool $filter
*
* @return KunenaForumAnnouncement[]
*/
static public function getAnnouncements($start = 0, $limit = 1, $filter = true) {
$db = JFactory::getDBO ();
$where = $filter ? "WHERE published=1" : '';
$query = "SELECT * FROM #__kunena_announcement {$where} ORDER BY created DESC";
$db->setQuery ( $query, $start, $limit );
$results = (array) $db->loadAssocList ();
KunenaError::checkDatabaseError ();
self::$_instances = array();
$list = array();
foreach ( $results as $announcement ) {
if (isset(self::$_instances [$announcement['id']])) continue;
$instance = new KunenaForumAnnouncement ($announcement);
$instance->exists (true);
self::$_instances [$instance->id] = $instance;
$list[] = $instance;
}
unset ($results);
return $list;
}
/**
* @param bool $filter
*
* @return int
*/
static public function getCount($filter = true) {
$db = JFactory::getDBO ();
$where = $filter ? "WHERE published=1" : '';
$query = "SELECT COUNT(*) FROM #__kunena_announcement {$where}";
$db->setQuery ( $query );
$total = (int) $db->loadResult ();
KunenaError::checkDatabaseError ();
return $total;
}
/**
* Free up memory by cleaning up all cached items.
*/
public static function cleanup() {
self::$_instances = array();
}
}