ah... a 'forward' reference;excellent! thanks weheh On Feb 1, 1:32 pm, weheh <[email protected]> wrote: > Try this: > db.defint_table(... > Field('previous_planet','reference planet'), > ...) > > Then after the table definition: > db.planet.previous_planet.requires=IS_NULL_OR(IS_IN_DB > (db.db.planet.id)) > > On Feb 1, 7:12 am, Carl <[email protected]> wrote: > > > > > If I want a planet record to point to another planet record? > > > If I use the following... > > > db.define_table('planet', > > Field('radius', 'integer'), > > Field('previous_planet', db.planet, requires=IS_NULL_OR > > (IS_IN_DB(db,db.planet.id,'%(id)s')))) > > > I get KeyError: 'planet' which makes sense as planet doesn't exist at > > the point I 'try' and refer to it.
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