具有属性的多对多映射 - 主键是外键

Question

我在使用属性关系映射多对多时遇到了问题。就像这里的问题

fluent nhibernate - Many to Many mapping with attribute

但是我没有在我的中产阶级的一个主键，取而代之的则是由其他两个班的ID的。

报价SKU类（中产阶级）

public class QuotationSKUCost : Entity 
{ 
    public virtual decimal UnitPrice { get; set; } 
    public virtual Quotation Quotation { get; set; } 
    public virtual QuotationRequestSKU QuotationRequestSKU { get; set; } 
} 

报价类

public class Quotation : Entity 
{ 
    public virtual int Id { get; set; } 
    public virtual DateTime ValidUntil { get; set; } 
    public virtual string Data { get; set; } 
    public virtual ICollection<QuotationSKUCost> QuotationSKUCosts { get; set; } 
} 

报价请求SKU

public class QuotationRequestSKU : Entity 
{ 
    public virtual int Id { get; set; } 
    public virtual int Quantity { get; set; } 
    public virtual ICollection<QuotationSKUCost> QuotationSKUCost { get; set; } 
} 

中产阶级映射!!

public QuotationSKUCostMapping() 
    { 
     Table("QuotationSKUCost"); 
     CompositeId() //need to map QuotationId and QuotationRequestSKUid as Composite key 
      .KeyProperty(x => x.Quotation, "QuotationId") 
      .KeyReference(x => x.QuotationRequestSKU, "QuotationRequestSKUId"); 
     Map(x => x.UnitPrice); 
    } 

尝试调试时，我得到的错误是：

无法确定类型：ORM.Entities.Quote.Quotation，ORM， 版本= 1.0.0.0，文化=中性公钥=空，为列： NHibernate.Mapping.Column（QuotationId）

编辑：添加报价马pping

public QuotationMapping() 
    { 
     Id(x => x.Id).Column("QuotationId"); 
     Map(x => x.ValidUntil); 
     Map(x => x.Data); 
     HasMany(x => x.QuotationSKUCosts).KeyColumn("QuotationId"); 
    } 

Answer 1

找到了答案后，热切

  .KeyProperty(x => x.Quotation, "QuotationId") 
      .KeyReference(x => x.QuotationRequestSKU, "QuotationRequestSKUId"); 

应该

  .KeyReference(x => x.Quotation, "QuotationId") 
      .KeyReference(x => x.QuotationRequestSKU, "QuotationRequestSKUId");