如何使用流利的hibernate保存对象

Question

Hi am confused with how to save object with fluent nhibernate.

say I have a class Foo which has one to many relationship with ChildFoo.

Table foo has id and name. Table ChildFoo has sourceID which matches the id for the foo entity.

The mapping would look like this.

class Foo 
{
   public virtual ID {get;set;}
   public IList<FooChild> Components{get;set;}
}

the mapping would look like this

public FooMap : ClassMap<FooMap> 
{
   public FooMap()
   {
      HasMany(x => x.Components).KeyColumn("SourceID");
   }
}

Now when I want to save FooMap with some collection of Components, how do I tell fluent nhibernate to save the entity ( a class foo with a bunch of Foo Children stored in the Components list) I have created, without me requiring me to save each component manually.

thanks.

Answer 1

You'd want to change your HasMany mapping to the following:

HasMany(x => x.Components).KeyColumn("SourceID").Inverse().Cascade.All();

Also it looks like your mapping is incorrect. It should be this:

public FooMap : ClassMap<Foo> 
{
   public FooMap()
   {
      Id(x => x.ID, "SourceID");
      HasMany(x => x.Components)
         .KeyColumn("SourceID")
         .Inverse()
         .Cascade.All();
   }
}