重新水合流畅的nhibernate将DateTime配置为Kind Utc而不是Unspecified

Map(x => x.EntryDate).CustomType<UtcDateTimeType>();

这不是fluent特有的,而是NHibernate映射的基础。我们使用拦截器来指定种类。这与方法类似 in this blog post proposed patch (NH-1135) 用于本机处理UtcDateTime和LocalDateTime。我鼓励你投票支持它。

public class InterceptorBase : EmptyInterceptor
{
    public override bool OnLoad(object entity, object id, object[] state,
        string[] propertyNames, IType[] types)
    {
        ConvertDatabaseDateTimeToUtc(state, types);
        return true;
    }

    private void ConvertDatabaseDateTimeToUtc(object[] state, IList<IType> types)
    {
        for (int i = 0; i < types.Count; i++)
        {
            if (types[i].ReturnedClass != typeof(DateTime))
                continue;

            DateTime? dateTime = state[i] as DateTime?;

            if (!dateTime.HasValue)
                continue;

            if (dateTime.Value.Kind != DateTimeKind.Unspecified)
                continue;

            state[i] = DateTime.SpecifyKind(dateTime.Value, DateTimeKind.Utc);
        }
    }
}

有:

Map(x => x.EntryDate).CustomType<LocalDateTimeType>();

这等同于拥有: (此代码旨在说明,而不是一个示例)

Map(x => x._hiddenEntryDate).Column("EntryDate");
Ignore(x => x.EntryDate);

///...

public class MyEntity
{
    protected virtual DateTime _hiddenEntryDate { get; set; }
    public DateTime EntryDate
    {
        get
        {
            return DateTime.SpecifyKind(_hiddenEntryDate, DateTimeKind.Local);
        }
        set
        {
            _hiddenCreated = DateTime.SpecifyKind(value, DateTimeKind.Local);
        }
    }
}

.ToLocalTime()

UtcDateTimeType 从不打电话 .ToUniversalTime()