Первое сообщение темы в com_forum_view.tpl

// Получим темы
    if($daysprune){
        $model->whereDayIntervalIs($daysprune);
    }
    $model->whereForumIs($forum['id']);
    $inDB->orderBy('t.pinned', 'DESC, t.'.$order_by.' '.$order_to);
    $inDB->limitPage($page, $model->config['pp_forum']);
    $threads = $model->getThreads();
    if(!$threads && $page > 1){ cmsCore::error404(); }
 
    cmsPage::initTemplate('components', 'com_forum_view')->
            assign('threads', $threads)->
            assign('show_panel', true)->
            assign('order_by', $order_by)->
            assign('order_to', $order_to)->
            assign('daysprune', $daysprune)->
            assign('moderators', $moderators)->
            assign('pagination', cmsPage::getPagebar($forum['thread_count'], $page, $model->config['pp_forum'], '/forum/'.$forum['id'].'-%page%'))->
            display('com_forum_view.tpl');

$first_post_id = $inDB->get_field('cms_forum_posts', "thread_id = '{$thread['id']}' ORDER BY pubdate ASC", 'id');

assign('is_first_post', (isset($last_post['id']) ? $first_post_id == $last_post['id'] : true))->