public function edit_user($id)
 {
     $user = User::findOrFail($id);
     if (\Request::has('edit')) {
         $data = \Request::all();
         $user->update($data);
         return redirect('admin/list_users')->with('msge', "saving successful");
     } else {
         $hubs = LiveData::getHubs();
         $facilities = LiveData::getFacilities();
         $hubs = \MyHTML::get_arr_pair($hubs, 'hub');
         $facilities = \MyHTML::get_arr_pair($facilities, 'facility');
         return view('auth.edit_user', compact('hubs', 'facilities', 'user', 'id'));
     }
 }