C# Fluent NHibernate：许多自参考映射

我需要帮助为此类场景创建正确的fluent nh映射：

类别可以是一个或多个类别的子类别。因此，导致该实体：

public class Category : Entity, IAggregateRoot
{
    [EntitySignature]
    public virtual string Name { get; set; }
    public virtual IList<Category> Parents { get; set; }
    public virtual IList<Category> Children { get; set; }
    public virtual IList<ProductCategory> Products { get; set; }

    public Category()
    {
        Parents = new List<Category>();
        Children = new List<Category>();
        Products = new List<ProductCategory>();

    }

    public virtual void AddCategoryAsParent(Category parent)
    {
        if (parent != this && !parent.Parents.Contains(this) && !Parents.Contains(parent))
        {
            Parents.Add(parent);
            parent.AddCategoryAsChild(this);
        }
    }

    public virtual void RemoveCategoryAsParent(Category parent)
    {
        if (Parents.Contains(parent))
        {
            Parents.Remove(parent);
            parent.RemoveCategoryAsChild(this);
        }
    }

    public virtual void AddCategoryAsChild(Category child)
    {
        if(child != this && !child.Children.Contains(this) && !Children.Contains(child))
        {
            Children.Add(child);
            child.AddCategoryAsParent(this);
        }
    }

    public virtual void RemoveCategoryAsChild(Category child)
    {
        if(Children.Contains(child))
        {
            Children.Remove(child);
            child.RemoveCategoryAsParent(this);
        }
    }
}

它首先删除所有映射，然后插入剩余的映射。正确的方法是删除类别父映射，此类语句：

DELETE FROM CategoryParents WHERE CategoryId = @p0 AND ParentCategoryId = @p1;@p0 = 2, @p1=1

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有什么想法吗？

查看映射后，我认为您希望更改级联选项。这里有一篇文章概述了实体之间的父子关系。虽然它是从孤立实体的角度来看的，但我认为你会发现这个博客很有帮助。祝你好运

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我注意到您正在使用IAggregateRoot。这难道不妨碍一个以上的父母吗？

NHibernate: DELETE FROM CategoryParents WHERE CategoryId = @p0;@p0 = 2
NHibernate: INSERT INTO CategoryParents (CategoryId, ParentCategoryId) VALUES (@p0, @p1);@p0 = 2, @p1 = 3

DELETE FROM CategoryParents WHERE CategoryId = @p0 AND ParentCategoryId = @p1;@p0 = 2, @p1=1