public async Task <Result> Handle(DeleteIngredientCommand command)
{
try
{
var ingredient = await _ingredientsRepository.Get(command.Slug);
if (ingredient == null)
{
return(Result.Fail("Ingredient not found."));
}
await _ingredientsRepository.Delete(ingredient);
}
catch (DbUpdateConcurrencyException)
{
if (!_ingredientsRepository.Exists(command.Slug))
{
return(Result.Fail("Recipe not found."));
}
else
{
throw;
}
}
catch (DbUpdateException /* ex */)
{
return(Result.Fail("Delete failed. Try again, and if the problem persists " +
"see your system administrator."));
}
return(Result.Ok());
}
public async Task <Result> Handle(UpdateIngredientCommand command)
{
var ingredient = new Ingredient(command.Title, command.Description, command.Slug);
try
{
await _ingredientsRepository.Update(ingredient);
}
catch (DbUpdateConcurrencyException)
{
if (!_ingredientsRepository.Exists(ingredient.Slug))
{
return(Result.Fail("Recipe not found."));
}
else
{
throw;
}
}
return(Result.Ok());
}
public bool Exists(int id, int userId)
{
return(_ingredientsRepository.Exists(id, userId));
}