Nhibernate 在更新时为子对象添加新条目

Question

 public CaseMap()
        {
            Id(c => c.ID);//.GeneratedBy.Increment();

            Map(c => c.CIN);
            Map(c => c.CaseNumber);
            Map(c => c.Name);
            Map(c => c.RegistryNumber);

            References(c => c.ApplicantType).Column("FK_ApplicantTypeId").Cascade.None();
            References(c => c.ApplicationType).Column("FK_ApplicationTypeId").Cascade.None();
            References(c => c.AVSUser).Column("FK_UserId").Cascade.None();
            References(x => x.Program).Column("FK_ProgramId").Cascade.None(); 

            References(c => c.CaseApplicant).Column("FK_CaseApplicantId").Cascade.SaveUpdate();
            References(c => c.Address).Column("FK_AddressId").Cascade.SaveUpdate();
            References(x => x.Spouse).Column("FK_SpouseId").Cascade.SaveUpdate();


            Map(c => c.SpouseLink);
            Map(c => c.Status);
            Map(c => c.CreatedDate);
            Map(c => c.UpdatedDate);
            Map(c => c.IsArchived);



            Table("tbl_Case");
        }

更新方法 -

 public bool Update(T persistableEntity)
        {
            if (persistableEntity != null)
            {
                session.BeginTransaction();
                session.Update(persistableEntity);
                session.Transaction.Commit();
                return true;
            }
            return false;
        }

更新调用会更新案例 table 但会为 CaseApplicant、Address 和 Spouse 等子对象添加新条目。

Answer 1

代码错误

而不是

 cCase.Address = new CaseAddress();
         cCase.Address.Street = record.ResidenceStreet;

应该只是

cCase.Address.Street = record.ResidenceStreet;

cCase.Address = new CaseAddress() 正在为 CaseAddress 创建新对象导致新条目。

另外更新方法应该是session.Merge而不是update

public bool Update(T persistableEntity)
        {
            if (persistableEntity != null)
            {
                session.BeginTransaction();
                session.Merge(persistableEntity);
                session.Transaction.Commit();
                return true;
            }
            return false;
        }

Nhibernate 在更新时为子对象添加新条目

Nhibernate adding new entry for child object on update

c#

nhibernate