laravel's validator doesnt return input fields

problems with returning inputs. after form submitted, if validator fails it doesnt return 'old' inputs. here's my controller

$validator = Validator::make($request->all(), [
        'user_rate' => 'required|integer|between:1,5',
        'user_comment' => 'required',
    ], [
        "user_rate.integer" => trans('errors.rate-required'),
        "user_rate.between" => trans('errors.rate-required'),
        "user_rate.required" => trans('errors.rate-required'),
        "user_comment.required" => trans('errors.com-required'),

    ]);

    if ($validator->fails()) {
        return redirect()->back()->withErrors($validator)->withInput($request->input());
        //return redirect()->back()->with(Input::all());
    }

i have tried several ways(also $request->flash(), but it doesnt return 'old' inputs

via Chebli Mohamed