public UserSubscriptionsBll()
        {
            var uow = new UnitOfWork(new MemoContext());

            userSubscriptions = new UserSubscriptions(uow);
            converterToDto    = new ConverterToDTO();
            converterFromDto  = new ConverterFromDTO(uow);
        }
 public UserSubscriptionsBll(
     IUserSubscriptions userSubscriptions,
     IConverterToDTO converterToDto,
     IConverterFromDTO converterFromDto)
 {
     this.userSubscriptions = userSubscriptions;
     this.converterToDto    = converterToDto;
     this.converterFromDto  = converterFromDto;
 }