我正在用流畅的NHibernate自动应用程序试验NHibernate(版本2.1.0.4000)。
我的实体测试集使用默认整数ID保持良好状态
我正在尝试对实体使用guid id id。不幸的是,将id属性更改为guid似乎会停止nhibernate插入对象。
下面是实体类:
public class User
{
public virtual int Id { get; private set; }
public virtual string FirstName { get; set; }
public virtual string LastName { get; set; }
public virtual string Email { get; set; }
public virtual string Password { get; set; }
public virtual List<UserGroup> Groups { get; set; }
}
下面是我使用的流畅的NHibernate配置:
SessionFactory = Fluently.Configure()
//.Database(SQLiteConfiguration.Standard.InMemory)
.Database(MsSqlConfiguration.MsSql2008.ConnectionString(@"Data Source=.\SQLEXPRESS;Initial Catalog=NHibernateTest;Uid=NHibernateTest;Password=password").ShowSql())
.Mappings(m =>
m.AutoMappings.Add(
AutoMap.AssemblyOf<TestEntities.User>()
.UseOverridesFromAssemblyOf<UserGroupMappingOverride>()))
.ExposeConfiguration(x =>
{
x.SetProperty("current_session_context_class","web");
})
.ExposeConfiguration(Cfg => _configuration = Cfg)
.BuildSessionFactory();
以下是使用整数ID时的日志输出:
16:23:14.287 [4] DEBUG NHibernate.Event.Default.DefaultSaveOrUpdateEventListener - saving transient instance
16:23:14.291 [4] DEBUG NHibernate.Event.Default.AbstractSaveEventListener - saving [TestEntities.User#<null>]
16:23:14.299 [4] DEBUG NHibernate.Event.Default.AbstractSaveEventListener - executing insertions
16:23:14.309 [4] DEBUG NHibernate.Event.Default.AbstractSaveEventListener - executing identity-insert immediately
16:23:14.313 [4] DEBUG NHibernate.Persister.Entity.AbstractEntityPersister - Inserting entity: TestEntities.User (native id)
16:23:14.321 [4] DEBUG NHibernate.AdoNet.AbstractBatcher - Opened new IDbCommand, open IDbCommands: 1
16:23:14.321 [4] DEBUG NHibernate.AdoNet.AbstractBatcher - Building an IDbCommand object for the SqlString: INSERT INTO [User] (FirstName, LastName, Email, Password) VALUES (?, ?, ?, ?); select SCOPE_IDENTITY()
16:23:14.322 [4] DEBUG NHibernate.Persister.Entity.AbstractEntityPersister - Dehydrating entity: [TestEntities.User#<null>]
16:23:14.323 [4] DEBUG NHibernate.Type.StringType - binding null to parameter: 0
16:23:14.323 [4] DEBUG NHibernate.Type.StringType - binding null to parameter: 1
16:23:14.323 [4] DEBUG NHibernate.Type.StringType - binding 'ertr' to parameter: 2
16:23:14.324 [4] DEBUG NHibernate.Type.StringType - binding 'tretret' to parameter: 3
16:23:14.329 [4] DEBUG NHibernate.SQL - INSERT INTO [User] (FirstName, LastName, Email, Password) VALUES (@p0, @p1, @p2, @p3); select SCOPE_IDENTITY();@p0 = NULL, @p1 = NULL, @p2 = 'ertr', @p3 = 'tretret'
以下是使用guid时的输出:
16:50:14.008 [4] DEBUG NHibernate.Event.Default.DefaultSaveOrUpdateEventListener - saving transient instance
16:50:14.012 [4] DEBUG NHibernate.Event.Default.AbstractSaveEventListener - generated identifier: d74e1bd3-1c01-46c8-996c-9d370115780d, using strategy: NHibernate.Id.GuidCombGenerator
16:50:14.013 [4] DEBUG NHibernate.Event.Default.AbstractSaveEventListener - saving [TestEntities.User#d74e1bd3-1c01-46c8-996c-9d370115780d]
这就是它无声失败的地方,没有异常抛出或进一步的日志条目。
看起来它正在为新对象正确地生成guid id,但只不过比这更进一步。
为了使用guid id,是否需要做一些不同的事情?
谢谢,
丹。