级联保存与流畅的NHibernate自动映射 [英] Cascade Saves with Fluent NHibernate AutoMapping

问题描述

$ b

如：

我保存人员和手臂也应该保存。目前我得到

对象引用未保存的瞬态实例 - 在冲洗前保存瞬态实例

  public class Person：DomainEntity 
 {
 public virtual Arm LeftArm {get;组; } 
} 
 
 public class Arm：DomainEntity 
 {
 public virtual int Size {get;组; } 
} 
  

我找到关于这个话题的文章，但似乎已经过时了。 >

解决方案

这适用于新的配置位。有关详情，请参阅 http://fluentnhibernate.wikia.com/wiki/Converting_to_new_style_conventions p>

  //挂断AutoPersistenceModel 
 .ConventionDiscovery.AddFromAssemblyOf< CascadeAll>（）
 
 
 public class CascadeAll：IHasOneConvention，IHasManyConvention，IReferenceConvention 
 {
 public bool Accept（IOneToOnePart target）
 {
 return true; 
} 
 
 public void Apply（IOneToOnePart target）
 {
 target.Cascade.All（）; 
 
 
 public bool Accept（IOneToManyPart target）
 {
 return true; 
} 
 
 public void Apply（IOneToManyPart target）
 {
 target.Cascade.All（）; 
} 
 
 public bool接受（IManyToOnePart target）
 {
 return true; 
} 
 
 public void Apply（IManyToOnePart target）
 {
 target.Cascade.All（）; 
} 
} 
  

How do I "turn on" cascading saves using AutoMap Persistence Model with Fluent NHibernate?

As in:

I Save the Person and the Arm should also be saved. Currently I get

"object references an unsaved transient instance - save the transient instance before flushing"

public class Person : DomainEntity
{
  public virtual Arm LeftArm { get; set; }
}

public class Arm : DomainEntity
{
  public virtual int Size { get; set; }
}

I found an article on this topic, but it seems to be outdated.

解决方案

This works with the new configuration bits. For more information, see http://fluentnhibernate.wikia.com/wiki/Converting_to_new_style_conventions

//hanging off of AutoPersistenceModel    
.ConventionDiscovery.AddFromAssemblyOf<CascadeAll>()


public class CascadeAll : IHasOneConvention, IHasManyConvention, IReferenceConvention
{
    public bool Accept( IOneToOnePart target )
    {
        return true;
    }

    public void Apply( IOneToOnePart target )
    {
        target.Cascade.All();
    }

    public bool Accept( IOneToManyPart target )
    {
        return true;
    }

    public void Apply( IOneToManyPart target )
    {
        target.Cascade.All();
    }

    public bool Accept( IManyToOnePart target )
    {
        return true;
    }

    public void Apply( IManyToOnePart target )
    {
        target.Cascade.All();
    }
}

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