public async Task DeleteAsync(int id, int userId)
{
if (!Exists(id, userId))
{
throw new ValidationException("Unauthorized");
}
await _ingredientsRepository.DeleteAsync(id);
}
public ShowIngredientsPageViewModel(
IIngredientsRepository ingredientsRepository,
INavigationService navigationService,
IUserInteraction userInteraction)
: base(navigationService, ingredientsRepository)
{
this.WhenAnyObservable(vm => vm.Ingredients.ItemChanged)
.ObserveOn(RxApp.MainThreadScheduler)
.Where(arg => arg.PropertyName == nameof(DrinkIngredientViewModel.TickSelected))
.Select(arg => (DrinkIngredientViewModel)arg.Sender)
.Do(ingredient => SelectedDrinkIngredient = ingredient)
.Subscribe(async ingredientViewModel =>
{
var selections = new List <string>()
{
"Edit", "Delete"
};
var result = await userInteraction.DisplayActionSheetAsync(
$"{ingredientViewModel.Name} selected!",
"Cancel",
null,
selections.ToArray());
if (result == "Edit")
{
var navigationParameter = new TypedParameter(typeof(DrinkIngredientViewModel), ingredientViewModel);
await navigationService.PushAsync <EditIngredientPageViewModel>(navigationParameter);
}
else if (result == "Delete")
{
await ingredientsRepository.DeleteAsync(ingredientViewModel.Ingredient);
await ActivateAsync();
}
else
{
ExceptionFactory.Get <NotImplementedException>("That selection is not jet implemented!");
}
});
}