映射以查看自定义字段名称 - 一对一关系

Question

我无法获得的NHibernate到地图AccountCode中的列Beneficiary表AccountCode在此一比一的关系列(每Account有一个单一的Beneficiary,每个Beneficiary都有一个Account).

类别:

public class Account
{
    ...
    public virtual string Name { get; protected set; }
    public virtual string Code { get; protected set; }
}

public class Beneficiary
{
    ...
    public virtual int Id { get; set; }
    public virtual string Name { get; protected set; }
    public virtual Account Account { get; protected set; }
    public virtual BeneficiaryGroup Group { get; protected set; }
}

SQL:

CREATE VIEW dbo.Account AS
    SELECT DISTINCT RTRIM(LTRIM(ACCNT_NAME)) AS Name, 
                    RTRIM(LTRIM(ACCNT_CODE)) AS Code
    FROM myremoteserver.schema.tablename
    WHERE ACCNT_TYPE NOT IN ('B', 'P')


CREATE TABLE dbo.Beneficiary
(
    Id INT IDENTITY(1,1) NOT NULL, 
    BeneficiaryGroupId INT NOT NULL CONSTRAINT FK_Beneficiaries_BeneficiaryGroup FOREIGN KEY REFERENCES dbo.BeneficiaryGroup (Id), 
    Name VARCHAR(100) NOT NULL,
    AccountCode VARCHAR(100) NOT NULL,
    CONSTRAINT PK_Beneficiary PRIMARY KEY (Id)
)

当尝试使用HasMany和不同的变体时,NHibernate尝试加入该Beneficiary.Id列.

我曾尝试不同的变化Map,References,Join(它告诉我,加入已经存在)和HasMany(其失败,由于工作的关系确实是一个对一个).

我怎样才能让NHibernate将这两个类正确映射到它们的列？

---

在尝试不同的流畅映射时,在我看来IAutoMappingOverride<Beneficiary>,会发生以下情况:

mapping.HasOne(b => b.Account);
mapping.HasOne(b => b.Account).PropertyRef(sa => sa.Code);
mapping.HasOne(b => b.Account).PropertyRef(sa => sa.Code).ForeignKey("none");

生成的SQL使用Beneficiary.Id字段而不是Beneficiary.AccountCode.(在你问之前,我使用"无"因为Account是一个视图,它不能有一个键).

mapping.Join("AccountCode", x => x.References(y => y.Account));
mapping.Join("Account", b => b.KeyColumn("AccountCode"));

结果Tried to add join to table 'Account' when already added..

和:

mapping.Map(b => b.Account, "AccountCode");
mapping.Map(b => b.Account).ReadOnly().Column("AccountCode");

造成:

无法确定以下类型:.Account ,, Version = 1.0.0.0,Culture = neutral,PublicKeyToken = null,对于列:NHibernate.Mapping.Column(AccountCode)

mapping.References(b => b.Account).Column("Code");

结果Invalid column name 'Code'..

和:

mapping.References(b => b.Account).Column("AccountCode");
mapping.References(b => b.Account).Column("AccountCode").Access.Property();

覆盖我的所有IReferenceConvention覆盖(将某些类映射为具有<class name>Code键列).

尝试时HasMany:

mapping.HasMany<Account>(b => b.Account).KeyColumn("AccountCode");

自定义类型不实现UserCollectionType:.Account

Answer 1

// in BeneficiaryMapping
mapping.References(b => b.Account)
    .Column("AccountCode" /* of Beneficiary table*/)
    .PropertyRef(a => a.Code); // use the Column of Code as the joincolumn in Account table