Интеграция JComments в DJ-Catalog2 - Вопросы по интеграции

<option value="2">DISQUS</option>

<option value="3">JComments</option>

<?php
defined ('_JEXEC') or die('Restricted access'); 

$uri = JFactory::getURI(); 
$lang = JFactory::getLanguage();
$languge_tag = str_replace('-', '_', $lang->getTag());

?>
<div class="djc_comments djc_clearfix">
<?php if ($this->params->get('comments', 0) == '3') { ?>
   	<?php 
		$comments = JPATH_SITE.'/components/com_jcomments/jcomments.php';
		if (file_exists($comments)) {
			require_once($comments);
			echo JComments::show($this->item->id,'com_djcatalog2', $this->item->name);
		}
	?>
<?php } else { ?>
	<h3><?php echo JText::_('COM_DJCATALOG2_COMMENTS'); ?></h3>
	<?php if($this->params->get('comments',0) == '1') { ?>
		<div id="fb-root"></div>
		<script>(function(d, s, id) {
		  var js, fjs = d.getElementsByTagName(s)[0];
		  if (d.getElementById(id)) return;
		  js = d.createElement(s); js.id = id;
		  js.src = "//connect.facebook.net/<?php echo $languge_tag; ?>/all.js#xfbml=1";
		  fjs.parentNode.insertBefore(js, fjs);
		}(document, 'script', 'facebook-jssdk'));</script>				
		<div class="fb-comments" data-href="<?php echo $uri->toString(); ?>" data-num-posts="2" data-width="auto"></div>
	<?php } else if($this->params->get('comments',0) == '2' && $this->params->get('disqus_shortname','')!= '') {?>
    	<?php 
    	$devlist = array('localhost', '127.0.0.1');
    	$disqus_shortname = $this->params->get('disqus_shortname','');
    	$disqus_url = $uri->toString();
    	$disqus_identifier = $disqus_shortname.'-djc2-'.$this->item->id;
    	$disqus_developer = (in_array($_SERVER['HTTP_HOST'], $devlist))? 1 : 0;
    	?>
    	<div id="disqus_thread"></div>
	    <script type="text/javascript">
	        var disqus_shortname = '<?php echo $disqus_shortname; ?>';
	        var disqus_url = '<?php echo $disqus_url; ?>';
	        var disqus_identifier = '<?php echo $disqus_identifier; ?>';
			var disqus_developer = <?php echo $disqus_developer; ?>;
			
	        /* * * DON'T EDIT BELOW THIS LINE * * */
	        (function() {
	            var dsq = document.createElement('script'); dsq.type = 'text/javascript'; dsq.async = true;
	            dsq.src = 'http://' + disqus_shortname + '.disqus.com/embed.js';
	            (document.getElementsByTagName('head')[0] || document.getElementsByTagName('body')[0]).appendChild(dsq);
	        })();
	    </script>
	    <noscript>Please enable JavaScript to view the <a href="http://disqus.com/?ref_noscript">comments powered by Disqus.</a></noscript>
	    <a href="http://disqus.com" class="dsq-brlink">comments powered by <span class="logo-disqus">Disqus</span></a>
	<?php } ?>				
<?php } ?>
</div>

<?php
/**
 * JComments plugin for DJ-Catalog2 objects support (http://dj-extensions.com)
 *
 * @version 3.0
 * @package JComments
 * @author Sergey M. Litvinov (smart@joomlatune.ru)
 * @copyright (C) 2011-2013 by Sergey M. Litvinov (http://www.joomlatune.ru)
 * @license GNU/GPL: http://www.gnu.org/copyleft/gpl.html
 */

defined('_JEXEC') or die;

class jc_com_djcatalog2 extends JCommentsPlugin
{
	function getObjectInfo($id, $language = null)
	{
		$info = new JCommentsObjectInfo();

		$routerHelper = JPATH_ROOT.'/components/com_djcatalog2/helpers/route.php';
		if (is_file($routerHelper)) {
			require_once($routerHelper);

			$db = JFactory::getDBO();

			$query = $db->getQuery(true);
			$query->select('a.id, a.alias, a.name, a.created_by');
			$query->from('#__djc2_items AS a');
			$query->select('c.id AS category_id, c.alias AS category_alias');
			$query->join('LEFT', '#__djc2_categories AS c ON c.id = a.cat_id');
			$query->where('a.id = ' . (int) $id);
			
			$db->setQuery($query);
			$row = $db->loadObject();

			if (!empty($row)) {
				$slug = $row->alias ? ($row->id . ':' . $row->alias) : $row->id;
				$catslug = $row->category_alias ? ($row->category_id . ':' . $row->category_alias) : $row->category_id;

				$info->title = $row->name;
				$info->userid = $row->created_by;
				$info->link = JRoute::_(DJCatalogHelperRoute::getItemRoute($slug, $catslug));
			}
		}

		return $info;
	}
}