Question

我有2个使用Entity Framework 6配置的实体。两个实体都具有身份标识，用于在插入时生成主键。

当我尝试添加新客户时，出现以下错误。 A dependent property in a ReferentialConstraint is mapped to a store-generated column. Column: 'Id'.

我的假设是我没有为一对一关系正确配置一个实体。

public class Customer : IdEntity
    {
        public string FirstName { get; set; }
        public string LastName { get; set; }
        public Guid? BalanceId { get; set; }
        public DateTime? Dob { get; set; }
        public DateTime CreateDate { get; set; }

        public CustomerBalance Balance { get; set; }
        public Address Address { get; set; }

        public virtual ICollection<Email> Emails { get; set; } = new List<Email>();
        public virtual ICollection<Phone> Phones { get; set; } = new List<Phone>();
        public virtual ICollection<Reward> Rewards { get; set; }
        public ICollection<Call> Calls { get; set; }
    }

这里是客户的映射

public class CustomerConfiguration : EntityTypeConfiguration<Customer>
    {
        public CustomerConfiguration()
        {
            ToTable(nameof(Customer));
            HasKey(x => x.Id).Property(x => x.Id).HasDatabaseGeneratedOption(DatabaseGeneratedOption.Identity);
            HasMany(x => x.Phones);
            HasMany(x => x.Emails);
            HasOptional(x => x.Balance);
 HasRequired(x => x.Address).WithRequiredDependent(x=>x.Customer);
        }

    }

这里是地址实体

public class Address : IdEntity
    {
        public string Address1 { get; set; }
        public string Address2 { get; set; }
        public string City { get; set; }
        public string State { get; set; }
        public string Zip { get; set; }
        public string Country { get; set; }
        public int CustomerId { get; set; }

        public virtual Customer Customer { get; set; }
    }

和映射

 public class AddressConfiguration : EntityTypeConfiguration<Address>
    {
        public AddressConfiguration()
        {
            ToTable(nameof(Address));
            HasKey(x => x.Id, e => e.IsClustered())
                .Property(x => x.Id)
                .HasDatabaseGeneratedOption(DatabaseGeneratedOption.Identity);

        }
    }

这是我如何插入新客户的代码

 var customer = new Customer
            {
                FirstName = request.FirstName,
                LastName = request.LastName,
                CreateDate = DateTime.Now,
                Address = new Address()
            };
            if (!string.IsNullOrEmpty(request.Email))
                customer.Emails.Add(new Email { EmailName = request.Email, IsPrimary = true });
            if (!string.IsNullOrEmpty(request.Phone))
                customer.Phones.Add(new Phone { Number = request.Phone, IsPrimary = true });

            _repository.AddOneAsync(customer);
            await _repository.Context.SaveChangesAsync();

保存更改时发生错误。地址和客户是一对一的关系。

这是在SQL中配置表的方式

https://ibb.co/cYYphbJ

https://ibb.co/LnXcsyB

Answer 1

EF6中的一对一关系必须使用相同的密钥。 EG Address.CustomerId必须是它的密钥。

要么允许客户在模型中拥有多个地址，要么将“ Address”的键更改为“ CustomerID”。

实体框架6 ReferentialConstraint中的从属属性映射到商店生成的列。错误

1 个答案: