I'm not entirely sure how you'd map this using standard hbm, but I think
it'd probably involve the where attribute on the collection. We currently
don't explicitly support where, so you'll have to fudge it. I'd do it
something like:
public class CommentMap : ClassMap<Comment>
{
public CommentMap()
{
// comment fields
}
}
// and the same for Post
public class ProductMap : ClassMap<Product>
{
public ProductMap()
{
// mappings
HasMany<Comment>(x => x.Comments)
.SetAttribute("where", "ObjType = 'Product'");
}
}
The contents of the where attribute may vary depending on what your column
actually contains.
On Wed, Jan 28, 2009 at 3:15 AM, Levin <cocoay...@gmail.com> wrote:
>
> Happy new year guys,
> I don't know how to map these tables(as below),any help will be
> appreciated.
> Tables are:
> 1,Posts
> 2,Products
> 3,ObjComments
>
> We need to save those comments on Posts(Or Products) in the
> ObjComments table,so there are two special columns 'ObjType' and
> 'ObjID' in the ObjComments table.Obviously,ObjType is an enum composed
> with 'Post' and 'Product',when ObjID is the post's(or products)
> primary key.
> My question is,how to map these three tables?
>
> >
>
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