// GET: Airplanes/Edit/5
        public async Task <IActionResult> Edit(int?id)
        {
            if (id == null)
            {
                return(new NotFoundViewResult("MyNotFound"));
            }

            var airplane = await _repository.GetByIdAsync(id.Value);

            if (airplane == null)
            {
                return(new NotFoundViewResult("MyNotFound"));
            }

            var view = _converterHelper.ToAirplaneViewModel(airplane);

            return(View(view));
        }