public async Task <IActionResult> CreateAsync(CurrencyAddOrEditDto model)
        {
            var result = new ReturnData <bool>();

            result.Obj = await _service.CreateAsync(model);

            return(Ok(result));
        }
 public async Task <bool> CreateAsync(CurrencyAddOrEditDto model)
 {
     if (await CheckOnly(model.Name))
     {
         _context.Currencys.Add(new Currency()
         {
             Name         = model.Name,
             Symbol       = model.Symbol,
             ExchangeRate = model.ExchangeRate,
         });
     }
     return(await _context.SaveChangesAsync() > 0);
 }