public function getForumStatistics($pagesize = null, $page = null)
 {
     $statistic = array();
     $threads = array();
     $conditionalStatement = "forum_id = {$this->id} AND is_active = 1 AND status+0 < 16";
     $conditionalStatement_sticky = "forum_id = {$this->id} AND is_active = 1 AND status+0 >= 16";
     $orderby = " created_at";
     $sort = "DESC";
     $stickies = PaForumThread::listPaForumThread($conditionalStatement_sticky, $orderby, $sort);
     $threads = PaForumThread::listPaForumThread($conditionalStatement, $orderby, $sort);
     $threads = array_merge($stickies, $threads);
     $statistics['nb_threads'] = count($threads);
     $nb_posts = 0;
     $last_post = null;
     $last_post_date = 0;
     $statistics['last_thread'] = !empty($threads[0]) ? $threads[0] : null;
     foreach ($threads as &$thread) {
         $thread->statistics = $thread->getThreadStatistics();
         $statistics['threads'][] = $thread;
         $nb_posts += $thread->statistics['posts'];
         if (is_object($thread->statistics['last_post'])) {
             $__obj = $thread->statistics['last_post'];
             $__obj->thread = $thread;
             $__post_date = strtotime($__obj->get_created_at());
             if ($__post_date > $last_post_date) {
                 $last_post = $__obj;
                 $last_post_date = $__post_date;
             }
         }
     }
     if (!is_null($page)) {
         $this->pagination = new MemoryPagging(@$statistics['threads'], $pagesize, $page);
         $statistics['threads'] = $this->pagination->getPageItems();
     }
     $statistics['nb_posts'] = $nb_posts;
     $statistics['last_post'] = $last_post;
     return $statistics;
 }