Question

我有一个基本的nHibernate，我正在尝试使用公式映射属性：

CREATE FUNCTION [dbo].[IsValueApprovalRequired] 
(
    -- Add the parameters for the function here
    @ValueApprovalID BigInt
)
RETURNS Bit
AS
BEGIN
    return CAST(1 as bit)
END

我的类定义非常简单，我试图将公式映射到类中：

[Class(Table="MyTable")]    
public class MyClass
{
    private long _id;
    /// <summary>
    /// A unique identifier for the object
    /// </summary>
    [Id(0, Name = "ID", Column = "ValueApproval_ID")]
    [Generator(1, Class = "identity")]
    public override long ID
    {
        get
        {
            return _id;
        }
        set
        {
            this._id = value;
        }
    }

    [NHibernate.Mapping.Attributes.Formula(Content = "(SELECT dbo.IsValueApprovalRequired(ID))")]
    private bool _isValueApprovalRequired;
    /// <summary>
    /// returns if this approval is considered required.
    /// </summary>
    public virtual bool IsValueApprovalRequired
    {
        get { return _isValueApprovalRequired; }
    }
}

正在加载类，但是未填充映射到公式的变量。

有谁知道为什么这不起作用？我看了sql请求，标量不在给定的select语句中。

提前感谢您的帮助！

Answer 1

我们也有这个问题。

您需要修改代码并添加PropertyAttribute：

[Property, Formula(Content = "(SELECT dbo.IsValueApprovalRequired(ID))")]

Nhibernate公式属性不映射

1 个答案: