The simplest ways (not necessarily the best) are: 1)
db.object.oid.requires=IS_NULL_OR(IS_IN_DB(db,'object.id','%(name)s')) or 2) all trees have a root. Create a dummy root object. Massimo On Feb 23, 12:30 am, "[email protected]" <[email protected]> wrote: > I'm sorry, I don't think I'm making myself clear. The issue is not > with setting up a hierarchy nor with traversing the hierarchy. The > issue is with data entry. > > I want to enter the parent of my object from a pull-down list so that > I don't accidentally select the wrong parent (by having to enter a > meaningless number, oid, that corresponds to the parent object's > record number). Instead, I want to enter the parent's name. > > However, if the object doesn't have a parent (root object), then the > oid should be NULL or 0. > > How do I do this with validators? --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "web2py Web Framework" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/web2py?hl=en -~----------~----~----~----~------~----~------~--~---
