Solved!
Thank you

2017-08-09 10:26 GMT+01:00 Leonel Câmara <leonelcam...@gmail.com>:

> This does:
>
> db.define_table('person',
> Field('name'),
> Field('boss','reference person',requires=IS_EMPTY_OR(IS_IN_DB(db, '
> person.id', '%(name)s'))),
> Format='%(name)s'
> )
>
> --
> Resources:
> - http://web2py.com
> - http://web2py.com/book (Documentation)
> - http://github.com/web2py/web2py (Source code)
> - https://code.google.com/p/web2py/issues/list (Report Issues)
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>

-- 
Resources:
- http://web2py.com
- http://web2py.com/book (Documentation)
- http://github.com/web2py/web2py (Source code)
- https://code.google.com/p/web2py/issues/list (Report Issues)
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