public virtual async Task <ActionResult> Editor(int?id)
        {
            if (id != null)
            {
                var record = await CurrencyService.FindByIdAsync(id.Value);

                if (record != null)
                {
                    return(View(await _currencyModelFactory.PrepareCurrencyModelAsync(record)));
                }
            }

            return(View(await _currencyModelFactory.PrepareCurrencyModelAsync(null)));
        }