Question not clear.
What does mean 'map' here?

On Thu, Apr 15, 2010 at 4:45 PM, Leandro - ProfessionalIT <
lsever...@gmail.com> wrote:

> Friends,
>
>   I have a situation where I can have a dog that I don't know your
> father and mother. How to resolve this ? for example, a dog that I buy
> in a shop.
>
> db.define_table('dog',
>    Field('name'),
>    Field('father_id','reference dog'),
>    Field('mother_id','reference dog'))
>
>  How to map this table ? becaus in my situation I can have a null
> father_id and mother_id.
>
>  Thanks
>
>  -- Leandro.
>


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