如何實現.ChildWhere（）映射與許多一對多的關係，在NH 3.2

Question

我有以下FNH映射：

public class ItemMap : ClassMap<Item> 
{ 
    public ItemMap() 
    { 
     this.HasManyToMany(a => a.ChildItems).ChildWhere("IsDeleted = 0").AsSet(); 
    } 
} 

結果HBM文件是：

<hibernate-mapping> 
    <class name="Item" table="Item"> 
    <set name="ChildItems" table="ItemsToChildItems"> 
     ... 
     <many-to-many class="ChildItem" where="IsDeleted = 0"> 
     <column name="ChildItemId" /> 
     </many-to-many> 
    </set> 
    </class> 
</hibernate-mapping> 

我想要實現使用「性感映射由代碼特徵:-) /順從的方法」的NHibernate 3.2相同的映射

注： 以下方法不起作用：

public class ItemMap : ClassMapping<Item> 
{ 
    public ItemMap() 
    { 
     this.Set(x => x.ChildItems 
     , map => 
     { 
     map.Where("IsDeleted = 0"); 
     } 
     , action => action.ManyToMany()); 
    } 
} 

因爲： 據以下FNH映射：

public class ItemMap : ClassMap<Item> 
{ 
    public ItemMap() 
    { 
     this.HasManyToMany(a => a.ChildItems).Where("IsDeleted = 0").AsSet(); 
    } 
} 

。凡（ 「請將isDeleted = 0」）和.ChildWhere（」 IsDeleted = 0「）不一樣。

HBM差異：

使用.ChildWhere("IsDeleted = 0")結果HBM文件是：

<hibernate-mapping> 
    <class name="Item" table="Item"> 
    <set name="ChildItems" table="ItemsToChildItems"> 
     ... 
     <many-to-many class="ChildItem" where="IsDeleted = 0"> 
     <column name="ChildItemId" /> 
     </many-to-many> 
    </set> 
    </class> 
</hibernate-mapping> 

結果HBM文件中使用.Where("IsDeleted = 0")是：

<hibernate-mapping> 
    <class name="Item" table="Item"> 
    <set name="ChildItems" table="ItemsToChildItems" where="IsDeleted = 0"> 
     ... 
     <many-to-many class="ChildItem"> 
     <column name="ChildItemId" /> 
     </many-to-many> 
    </set> 
    </class> 
</hibernate-mapping> 

誰也有類似的問題，或可提供解決方案？需要幫忙。

Answer 1

我有同樣的問題，我發現一種解決方案：

https://nhibernate.jira.com/browse/NH-2997

溶液在3個步驟：

1）添加新的接口方法IManyToManyMapper接口：

public interface IManyToManyMapper : IColumnsMapper {
void Where(string sqlWhereClause); }

2）在ManyToManyCustomizer類中實現新方法：

public void Where(string sqlWhereClause) { customizersHolder.AddCustomizer(propertyPath, (IManyToManyMapper x) => x.Where(sqlWhereClause)); }

3）實施在ManyToManyMapper類新方法：

public void Where(string sqlWhereClause) { manyToMany.where = sqlWhereClause; }