I need to have something like the following table:

I have many "person" records.
Some of them have a boss so i use the same table and a field "boss" to
reference the person record of the boss


db.define_table('person',
Field('name'),
Field('boss','reference person',requires=IS_EMPTY_OR(IS_IN_DB(db,
db.person.id,'%(name)s'))),
Format='%(name)s'
)

This does not work.

I get

AttributeError: 'DAL' object has no attribute 'person'

Thank you

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