fluent-nhibernate - bool 值的 Fluent NHibernate 自定义类型约定

Question

尝试创建适用于所有 bool 属性的约定。

给定这个类:

public class Product
{
    public string Name { get; private set; }
    public bool IsActive { get; private set; }

    public Product(string name)
    {
        Name = name;
    }
}

我有一个像这样的映射:

public class ProductMap : ClassMap<Product>
{
    public ProductMap()
    {
        Map(x => x.Name);
        Map(x => x.IsActive).CustomType<YesNoType>();
    }
}

我希望有一个约定可以做到这一点。到目前为止，我有:

public class YesNoTypeConvention : IPropertyConvention, IPropertyConventionAcceptance
{
    public void Apply(IPropertyInstance instance)
    {
        instance.CustomType<YesNoType>();
    }

    public void Accept(IAcceptanceCriteria<IPropertyInspector> criteria)
    {
        criteria.Expect(x => x.Property.DeclaringType == typeof(bool));
    }
}

我这样添加约定:

return Fluently.Configure()
                .Database(MsSqlConfiguration.MsSql2008
                            .ConnectionString(c => c.FromConnectionStringWithKey("dev"))
                            .AdoNetBatchSize(256)
                            .UseOuterJoin()
                            .QuerySubstitutions("true 1, false 0, yes 'Y', no 'N'"))
                .CurrentSessionContext<ThreadStaticSessionContext>()
                .Cache(cache => cache.ProviderClass<HashtableCacheProvider>())
                .ProxyFactoryFactory<ProxyFactoryFactory>()
                .Mappings(m => m.FluentMappings.AddFromAssembly(mappingAssembly)
                    .Conventions.Add(new ForeignKeyNameConvention(),
                                    new ForeignKeyContstraintNameConvention(),
                                    new TableNameConvention(),
                                    new YesNoTypeConvention(),
                                    new IdConvention()))
                .ExposeConfiguration(c => c.SetProperty("generate_statistics", "true"))
                .BuildSessionFactory();

但约定未被应用。我认为问题出在 Apply 方法中的 Expect 标准。我尝试过不同的属性类型，例如 DeclaringType 和 PropertyType。

我应该查看 IPropertyInsepector 的哪个属性以确定它是否为 bool 值？

谢谢，乔

Answer 1

criteria.Expect(x => x.Property.DeclaringType == typeof(bool));

// should be
criteria.Expect(x => x.Property.PropertyType == typeof(bool));