ICollection<>
我想通过代码使用 NHibernate 映射来映射具有类型属性的类。下面的代码有效。但我不喜欢Person
内部的额外属性CarSet
来使映射工作。
public class PersonSet
{
public virtual int Id { get; set; }
public virtual string Name { get; set; }
public virtual ICollection<CarSet> Cars { get; set; }
}
public class CarSet
{
public virtual int Id { get; set; }
public virtual string Name { get; set; }
public virtual PersonSet Person { get; set; }
}
public class PersonSetMap : ClassMapping<PersonSet>
{
public PersonSetMap()
{
Id(x => x.Id, m=>m.Generator(Generators.Identity));
Property(x=>x.Name);
Set(x => x.Cars, c =>
{
c.Key(k =>
{
k.Column("PersonId");
});
c.Cascade(Cascade.Persist);
c.Lazy(CollectionLazy.NoLazy);
}, r =>
{
r.OneToMany();
}
);
}
}
public class CarSetMap : ClassMapping<CarSet>
{
public CarSetMap()
{
Id(x => x.Id, m => m.Generator(Generators.Identity));
Property(x => x.Name);
ManyToOne(x => x.Person, m =>
{
m.Column("PersonId");
m.Cascade(Cascade.None);
m.NotNullable(true);
});
}
}
public void Save(){
using (var session = Cfg.Session)
using (var tx = session.BeginTransaction())
{
PersonSet John = new PersonSet { Name = PersonName.John };
John.Cars = new List<CarSet> {
new CarSet { Name = CarnName.BMW,Person = John},
new CarSet { Name = CarnName.BM,Person = John }};
session.Save(entity);
tx.Commit();
}
}
上面的代码生成下面的 SQL 脚本:
create table PersonSet (
Id INT IDENTITY NOT NULL,
Name NVARCHAR(255) null,
primary key (Id)
)
create table CarSet (
Id INT IDENTITY NOT NULL,
Name NVARCHAR(255) null,
PersonId INT not null,
primary key (id)
)
alter table CarSet
add constraint FKF967D6489A220265
foreign key (PersonId)
references PersonSet
我想要的是生成如下所示的不同的 SQL 脚本,并保持其余部分相同:
create table CarSet (
Name NVARCHAR(255) null,
PersonId INT not null,
)
理想情况下,我想要CarSet
这样的:
public class CarSet
{
public virtual int PersonId { get; set; }
public virtual string Name { get; set; }
}
任何想法?