/**
  * add outbound mail in DB
  *
  * @param $data
  *
  * @return int
  *
  * @since rt-Helpdesk 0.1
  */
 function add_outbound_mail($data)
 {
     return parent::insert($data);
 }
 /**
  *  delete mapping of gravity field
  *
  * @param $where
  *
  * @return int
  *
  * @since rt-Helpdesk 0.1
  *
  */
 function delete_mapping($where)
 {
     return parent::delete($where);
 }
 /**
  * add mail message
  *
  * @param $data
  *
  * @return int
  *
  * @since rt-Helpdesk 0.1
  */
 function add_message($data)
 {
     return parent::insert($data);
 }
 function get($columns, $offset = false, $per_page = false, $order_by = 'user_id desc')
 {
     return parent::get($columns, $offset, $per_page, $order_by);
 }
 function get_servers($data)
 {
     $servers = parent::get($data);
     return $servers;
 }
 function update_relation($data, $where)
 {
     return parent::update($data, $where);
 }
 /**
  * get all mail account
  *
  * @return array
  *
  * @since rt-Helpdesk 0.1
  */
 function get_all_mail_accounts()
 {
     return parent::get(array());
 }
 /**
  * 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);
 }