/**
  *  delete mapping of gravity field
  *
  * @param $where
  *
  * @return int
  *
  * @since rt-Helpdesk 0.1
  *
  */
 function delete_mapping($where)
 {
     return parent::delete($where);
 }
 /**
  * delete server from id
  *
  * @param $id
  *
  * @return int
  *
  * @since rt-Helpdesk 0.1
  */
 function delete_server($id)
 {
     return parent::delete(array('id' => $id));
 }
 function delete_relation($where)
 {
     return parent::delete($where);
 }
 /**
  * remove mail account
  *
  * @param $where
  *
  * @return int
  *
  * @since rt-Helpdesk 0.1
  */
 function remove_mail_account($where)
 {
     return parent::delete($where);
 }
 /**
  * remove ACL
  *
  * @param $where
  *
  * @return int
  *
  * @since rt-Helpdesk 0.1
  */
 public function remove_acl($where)
 {
     return parent::delete($where);
 }
 /**
  * @param $where
  *
  * @return int
  */
 function delete_attribute($where)
 {
     return parent::delete($where);
 }