/**
  * Load a single TopicLink object,
  * by PackageId Index(es)
  * @param integer $intPackageId
  * @return TopicLink
  */
 public static function LoadByPackageId($intPackageId)
 {
     return TopicLink::QuerySingle(QQ::Equal(QQN::TopicLink()->PackageId, $intPackageId));
 }