private async Task <ProductViewModel> GetProduct(Guid id)
        {
            var product = _mapper.Map <ProductViewModel>(await _repo.GetProductAndCaterer(id));

            product.Caterers = _mapper.Map <IEnumerable <CatererViewModel> >(await _repoCaterer.GetAll());
            return(product);
        }
        public async Task <IActionResult> Index()
        {
            var model = _mapper.Map <IEnumerable <CatererViewModel> >(await _repo.GetAll());

            return(View(model));
        }