/**
  * Show the form for editing the specified resource.
  *
  * @param  int  $id
  * @return Response
  */
 public function edit($id)
 {
     $topupRequest = TopupRequest::find($id);
     $commodities = Commodity::has('receipts')->lists('name', 'id');
     $sections = TestCategory::all()->lists('name', 'id');
     return View::make('topup.edit')->with('topupRequest', $topupRequest)->with('sections', $sections)->with('commodities', $commodities);
 }