Method getCategoryRouteByTag

public static function getCategoryRouteByTag($tagId)
{
    $needles = array(
        'category' => '',
        //'section'  => (int) $sectionid,
        'categories' => '',
    );
    $db = Factory::getDBO();
    $query = 'SELECT a.id, a.title, a.link_ext, a.link_cat' . ' FROM #__phocadownload_tags AS a' . ' WHERE a.id = ' . (int) $tagId;
    $db->setQuery($query, 0, 1);
    $tag = $db->loadObject();
    /*if (!$db->query()) {
    			throw new Exception($db->getErrorMsg(), 500);
    			return false;
    		}*/
    //Create the link
    if (isset($tag->id)) {
        $link = 'index.php?option=com_phocadownload&view=category&id=tag&tagid=' . (int) $tag->id;
    } else {
        $link = 'index.php?option=com_phocadownload&view=category&id=tag&tagid=0';
    }
    if ($item = self::_findItem($needles)) {
        if (isset($item->query['layout'])) {
            $link .= '&layout=' . $item->query['layout'];
        }
        if (isset($item->id)) {
            $link .= '&Itemid=' . $item->id;
        }
    }
    return $link;
}