public Response Update(OperationDto operation)
        {
            var responce = new Response();

            try
            {
                _unitOfWork.Operation.Update(operation.ToDao());
                _unitOfWork.Complete();
            }
            catch (Exception ex)
            {
                // logowanie do pliku ...
                responce.Errors.Add(new Error(ex.Source, ex.Message));
            }
            return(responce);
        }
        public DataResponse <int> Add(OperationDto operationDto)
        {
            var responce = new DataResponse <int>();

            try
            {
                var operation = operationDto.ToDao();
                _unitOfWork.Operation.Add(operation);
                _unitOfWork.Complete();
                // tutaj jest już znane id dodanego rekordu
                responce.Data = operation.Id;
            }
            catch (Exception ex)
            {
                //todo do wykonania
                // logowanie do pliku ...
                responce.Errors.Add(new Error(ex.Source, ex.Message));
            }
            return(responce);
        }