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有人可以告訴我如何使用Fluent NHibernate完成此映射嗎?它只是一個帶有組合鍵的賬戶表,在會話表中有許多子賬戶。如何在Fluent NHibernate映射中進行自引用的多對多關係?
這裏的工作NHibernate的映射和創建SQL它產生:
<?xml version="1.0"?>
<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2" auto-import="true">
<class name="NHibernateM2M000.Account, NHibernateM2M000" lazy="false">
<composite-id>
<key-property type="Int32" name="AccountId" />
<key-property type="Char" name="AccountTypeAbbr" />
</composite-id>
<property name="Name" column="AccountName" />
<bag name="ChildAccounts" lazy="false" table="AccountXref">
<key>
<column name="ParentAccountId" sql-type="int" />
<column name="ParentAccountTyper" sql-type="nchar" length="1" />
</key>
<many-to-many class="NHibernateM2M000.Account, NHibernateM2M000">
<column name="ChildAccountId" sql-type="int"/>
<column name="ChildAccountType" sql-type="nchar" length="1" />
</many-to-many>
</bag>
</class>
create table Account (AccountId INT not null, AccountTypeAbbr NCHAR(1) not null, AccountName NVARCHAR(255) null, primary key (AccountId, AccountTypeAbbr))
create table AccountXref (ParentAccountId int not null, ParentAccountTyper nchar not null, ChildAccountId int not null, ChildAccountType nchar not null)
alter table AccountXref add constraint FKB769F8B52F1320AB foreign key (ChildAccountId, ChildAccountType) references Account
alter table AccountXref add constraint FKB769F8B5A2DB3DC7 foreign key (ParentAccountId, ParentAccountTyper) references Account