public function tags($blogId, $includeCount = true, $onlyPopulated = true)
    {
        $oDb = Factory::service('Database');
        $oDb->select('t.id,t.blog_id,t.slug,t.label');

        if ($includeCount) {

            $sql  = '(SELECT COUNT(DISTINCT bpt.post_id) FROM ' . NAILS_DB_PREFIX . 'blog_post_tag bpt JOIN ';
            $sql .= NAILS_DB_PREFIX . 'blog_post bp ON bpt.post_id = bp.id WHERE bpt.tag_id = t.id AND ';
            $sql .= 'bp.is_published = 1 AND bp.is_deleted = 0 AND bp.published <= NOW()) post_count';

            $oDb->select($sql);
        }

        if ($onlyPopulated) {

            $oDb->having('post_count > ', 0);
        }

        $oDb->where('t.blog_id', $blogId);
        $oDb->order_by('t.label');

        $tags = $oDb->get(NAILS_DB_PREFIX . 'blog_tag t')->result();

        $this->load->model('blog/blog_tag_model');

        foreach ($tags as $tag) {

            $tag->url = $this->blog_tag_model->formatUrl($tag->slug, $tag->blog_id);
        }

        return $tags;
    }