Кнопка «Мне нравится» для Joomla

<?php echo plgContentLikebtn::getMarkup('com_content.article', $this->item->id, array('style'=>'drop', 'lang'=>'en'), true, true); ?>

<?php

defined('_JEXEC') or die;

class ContentModelArticles extends ContentModelArticlesDefault
{
    protected function getListQuery()
    {
        $query = parent::getListQuery();

        // Create a new query object.
        $db = $this->getDbo();

        // Add the list ordering clause.
        $query->join('LEFT', 
            '#__likebtn_items AS likebtn_items ' .
            'ON likebtn_items.content_type = ' . $db->quote('com_content.article') . ' ' .
            'AND likebtn_items.content_id = a.id'
        );

        // Clear order clause
        $query->clear('order');

        // Sort by likes
        $query->order('c.lft, likebtn_items.likes DESC, a.created');
        // Sort by dislikes
        //$query->order('c.lft, likebtn_items.dislikes DESC, a.created');
        // Sort by likes minus dislikes
        //$query->order('c.lft, likebtn_items.likes_minus_dislikes DESC, a.created');

        return $query;
    }
}