流畅的NHibernate自动映射不起作用

我发现了问题。我是从EntityBase继承的,但没有IgnoreBase调用。我假设由于EntityBase不在命名空间中,所以我不需要它来进行映射,但显然,如果不显式忽略基类,即使它是另一个命名空间,映射也将失败。

新的引导代码如下:

private static ISessionFactory GetSessionFactory()
{
    var database = MsSqlConfiguration.MsSql2005
        .ConnectionString(Configuration.ConnectionString)
        .DefaultSchema(DEFAULT_SCHEMA)
        .AdoNetBatchSize(BATCH_SIZE);

    var mappings = AutoMap.AssemblyOf<Letter>()
        .Where(x => x.GetType() == typeof(Letter))
        .IgnoreBase<EntityBase>()
        .Conventions.Add
        (
            ConventionBuilder.Id.Always(x =>
                x.GeneratedBy.HiLo(HILO_TABLE, HILO_COLUMN, HILO_MAX_LO)),
            ConventionBuilder.HasMany.Always(x => x.Cascade.AllDeleteOrphan()),
            Table.Is(o => Inflector.Pluralize(o.EntityType.Name)),
            PrimaryKey.Name.Is(o => "Id"),
            ForeignKey.EndsWith("Id"),
            DefaultLazy.Never(),
            DefaultCascade.All()
        );

    // ...

试试这个让我知道会发生什么:

var config = Fluently.Configure()
    .Mappings(m => m.AutoMappings.Add(AutoMap.AssemblyOf<Letter>()
        .Where(n => n.Name == "Letter"))
        .ExportTo(System.Environment.GetFolderPath(System.Environment.SpecialFolder.Desktop) + "/mappings"))
    .BuildConfiguration();

var factory = config.BuildSessionFactory();

我完全不知道你是不是在打电话 BuildConfiguration() ,因此NHibernate不必费心创建映射。

我创造了一个新的 ASP.NET MVC 应用程序并添加了这两个类和此配置:

public abstract class Entity
{
    public int Id { get; set; }
}

public class Letter
{
    public string Name { get; set; }
}

// this is in Global.asax
protected void Application_Start()
{
    Fluently.Configure()
        .Database(SQLiteConfiguration.Standard.InMemory())
        .Mappings(m => m.AutoMappings.Add(AutoMap.AssemblyOf<Entity>()
            .Where(t => t.IsSubclassOf(typeof (Entity))))
            .ExportTo(*the desktop*))
        .BuildConfiguration();
}

此代码能够成功导出映射。

编辑:

刚刚看到你的答案。不知道为什么 IgnoreBase() 解决了这个问题。它应该只决定如何为子类策略映射基类。哦,好吧。

我发现域类需要位于单独的程序集中,而不是构建ISessionFactory的代码中。一旦将域对象移动到单独的程序集中,一切都应该正常工作。

出于好奇,我尝试了惯例。从上面加上想法,它就永远不会起作用。意思是,我可以使用这样的域类:

public class Person
    {
        public virtual int Id { get; private set; }
        public virtual string FirstName { get; set; }
        public virtual string LastName { get; set; }
    }

自动映射程序如下:

public NHibernate.ISessionFactory Create()
        {
            var persistenceModel =
                AutoMap
                    .AssemblyOf<Person>();

            var ret =
                Fluently
                    .Configure()
                    .Database(MsSqlCeConfiguration.Standard.ShowSql().FormatSql().ConnectionString(ex => ex.FromConnectionStringWithKey("PersonSqlCe")))
                    .Mappings(x => x.AutoMappings.Add(persistenceModel))
                    .ExposeConfiguration(config =>
                        {
                            new SchemaExport(config).Create(true, true);

                            // DOC: workaround for identity column failures in SQLCE
                            config.SetProperty("connection.release_mode", "on_close");
                        })
                    .BuildSessionFactory();

            return ret;
        }

一切都很好。但是,当我将域类更改为如下所示时:

public class Person
    {
        public virtual int BAD { get; private set; }
        public virtual string FirstName { get; set; }
        public virtual string LastName { get; set; }
    }

并更改我的自动映射例程以符合新的PrimaryKey属性名称期望,如下面的代码:

public NHibernate.ISessionFactory Create()
        {
            var persistenceModel =
                AutoMap
                    .AssemblyOf<Person>();

            persistenceModel.Conventions.Add(PrimaryKey.Name.Is(x => "BAD"));

            var ret =
                Fluently
                    .Configure()
                    .Database(MsSqlCeConfiguration.Standard.ShowSql().FormatSql().ConnectionString(ex => ex.FromConnectionStringWithKey("PersonSqlCe")))
                    .Mappings(x => x.AutoMappings.Add(persistenceModel))
                    .ExposeConfiguration(config =>
                        {
                            new SchemaExport(config).Create(true, true);

                            // DOC: workaround for identity column failures in SQLCE
                            config.SetProperty("connection.release_mode", "on_close");
                        })
                    .BuildSessionFactory();

            return ret;
        }

... 我有如下错误:

  ----> FluentNHibernate.Visitors.ValidationException : The entity 'Person' doesn't have an Id mapped. Use the Id method to map your identity property. For example: Id(x => x.Id).
    at FluentNHibernate.Cfg.FluentConfiguration.BuildSessionFactory()
    SampleImplementation.cs(28,0): at NHQS.Tests.PersonSampleSessionFactoryCreator.Create()
    SessionFactoryTests.cs(16,0): at

什么给你?似乎会议的方法没有接通?