在投影中重用组件（NHibernate）

发布于 2024-08-05 19:12:31 字数 725 浏览 5 评论 0原文

是否可以在投影中重用组件映射？

以下是供应商实体的映射：

   <class name="Vendor" table="vendor">
     ...
     <property name="Name" column="Name" />
     <component name="Address" class="MyProject.Address, MyAssembly" >
       <property name="Street" column="street" />
       <property name="City" column="City" />
     </component>
   </class>

对于报告，我想在数据传输对象中检索这些供应商，但重用地址组件（因为有许多字段和一些有用的格式化行为）。

public class VendorDTO
{
    public string Name;
    public Address Address;

}

public class Address
{
    public string Street;
    public string City;
    public string SomeUsefulBehavour();
}

如果不将地址拆分到它自己的表中，这可能吗？

谢谢！

原文

Is it possible to reuse a component mapping in a projection?

Here is the mapping for the Vendor entity:

   <class name="Vendor" table="vendor">
     ...
     <property name="Name" column="Name" />
     <component name="Address" class="MyProject.Address, MyAssembly" >
       <property name="Street" column="street" />
       <property name="City" column="City" />
     </component>
   </class>

For a report I'd like to retrieve these vendors in a data transfer object but reuse the Address component (because there are many fields and some useful formatting behavour).

public class VendorDTO
{
    public string Name;
    public Address Address;

}

public class Address
{
    public string Street;
    public string City;
    public string SomeUsefulBehavour();
}

Is this possible without splitting Address out into it's own table?

Thanks!

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帅气尐潴 2024-08-12 19:12:31

我相信这应该“有效”：

Session.QueryOver<Vendor>()
    .SelectList(builder =>
        builder.Select(x => x.Name)
            .Select(x => x.Address))
    .TransformUsing(Transformers.AliasToBean<VendorDTO>())
    .List<VendorDTO>();

I believe this should 'just work':

Session.QueryOver<Vendor>()
    .SelectList(builder =>
        builder.Select(x => x.Name)
            .Select(x => x.Address))
    .TransformUsing(Transformers.AliasToBean<VendorDTO>())
    .List<VendorDTO>();

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