Question

帐户模型类别：

  [Table("Accounts")]
    public class Account
    {
        public int Id { get; set; }
        public string CompanyName { get; set; }
        public float Interval { get; set; }
    }

移动模型类：

public class Mobile
    {

        public int Id { get; set; }
        public string MobileNo { get; set; }
        public virtual Account Account { get; set; }

        public static Mobile Add(string mobile)
        {
            Mobile mobiles = new Mobile();
            mobiles.MobileNo = mobile;

            return mobiles;
        }

    }

这是我保存新条目的动作：

   public ActionResult Register(CompanyAccountViewModel model)
    {
        CancellationTokenSource cancelToken = new CancellationTokenSource();
        CompanyAccountRegistrationRequestMessage requestMessage = new CompanyAccountRegistrationRequestMessage();
        requestMessage.CompanyName = model.Name;
        requestMessage.Interval = model.Interval;
        model.Mobile.ForEach(x=> requestMessage.MobileNo.Add(x));
        Task<CompanyAccountRegistrationResponseMessage> response = _interactor.Handle(requestMessage, cancelToken.Token);

        CompanyAccountViewModel viewModel = _presenter.Handle(response.Result, model, ModelState);
        return View(viewModel);
    }

_presenter.Handle（）方法：

  public Task<CompanyAccountRegistrationResponseMessage> Handle(CompanyAccountRegistrationRequestMessage request, CancellationToken cancellationToken)
        {
            CompanyAccountRegistrationResponseMessage returnMessage;
            var validationResult = _validator.Validate(request);
            using (PowerSupplyDBContext dbContext = new PowerSupplyDBContext())
            {
                // ILoginUserCreator loginUsercreator = new LoginUserCreator();
                ICompanyAccountRegistrationUseCase companyAccountregistrationUseCase = new CompanyAccountRegistrationUseCase(dbContext);
                companyAccountregistrationUseCase.RegisterCompanyAccount(request);
                dbContext.SaveChanges();
            }
            returnMessage = new CompanyAccountRegistrationResponseMessage(validationResult);
            return Task.FromResult<CompanyAccountRegistrationResponseMessage>(returnMessage);
        }

我现在跳过验证，即：未设置验证：

public class CompanyAccountRegistrationRequestMessageValidator : AbstractValidator<CompanyAccountRegistrationRequestMessage>
{
    public CompanyAccountRegistrationRequestMessageValidator()
    {

    }
}

期望： 帐户和 手机之间存在一对多关系 表，即：一个帐户有很多手机号码。因此，移动表中有一个Account_Id，并且此Account_Id应该用插入的帐户ID填充。

实际发生的情况： Account_Id 在 手机表格为空。

Accounts table

Mobiles table

我在保存之前缺少要映射的内容，这使我度过了漫长的一天。我刚刚启动ASP.NET，如果我的问题不是这里要提出的标准，我深表歉意。谢谢你的时间。

修改： companyAccountregistrationUseCase.RegisterCompanyAccount（request）

public void RegisterCompanyAccount(CompanyAccountRegistrationRequestMessage request) { IList<Domain.Contacts.Mobile> mobiles = new List<Domain.Contacts.Mobile>(); _companyAccountRegistrationRepo = new CompanyAccountRegistrationRepository(_dbContext); Account account = new Account(); account.CompanyName = request.CompanyName; account.Interval = request.Interval; foreach (string mobile in request.MobileNo) { Domain.Contacts.Mobile mobileNo = Domain.Contacts.Mobile.Add(mobile); // contact.AssignAccountUser(accountUser); mobiles.Add(mobileNo); } _companyAccountRegistrationRepo.RegisterCompanyAccount(account, mobiles); }

Answer 1

在将数据保存到数据库之前，必须分配Account实例的Mobile属性。否则，移动实体应如何知道与之关联的帐户？

因此，您应该使用foreach方法将以下内容添加到RegisterCompanyAccount循环中：

mobileNo.Account = account;

如何在“代码优先”方法中配置一对多关系？

1 个答案: