One way that occurs to me is defining 'father_id' and 'mother_id' as integers instead of references and setting the default to zero. But then you would have to check if the fields are zero before using them as a reference.
On Apr 15, 7:45 am, Leandro - ProfessionalIT <[email protected]> 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. -- Subscription settings: http://groups.google.com/group/web2py/subscribe?hl=en
