>
> I am referring to this type of code (from the book):
>
> db.define_table('person',
> Field('uuid', length=64, default=lambda:str(uuid.uuid4())),
>
> Field('modified_on', 'datetime', default=now),
>
> Field('name'),
> format='%(name)s')
>
> db.define_table('dog',
> Field('uuid', length=64, default=lambda:str(uuid.uuid4())),
>
> Field('modified_on', 'datetime', default=now),
>
> Field('owner', length=64),
>
> Field('name'),
> format='%(name)s')
>
> db.dog.owner.requires = IS_IN_DB(db,'person.uuid','%(name)s')
>
>
Doing db.dog triggers the table to be defined, so to avoid that, just move
the requires into the Field definition:
Field('owner', length=64, requires=IS_IN_DB(db,'person.uuid','%(name)s'))
if not db(db.person.id).count():
>
> id = uuid.uuid4()
> db.person.insert(name="Massimo", uuid=id)
>
> db.dog.insert(owner=id, name="Snoopy")
>
>
Of course, the above code would trigger the table definition as well.
Anthony
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