Yes. No one solution is obviously better. It is good to have some options. Massimo
On Apr 2, 8:45 pm, Yarko Tymciurak <resultsinsoftw...@gmail.com> wrote: > On Apr 2, 7:14 pm, mdipierro <mdipie...@cs.depaul.edu> wrote: > > > db.table.field1.requires=IS_NULL_OR(IS_IPV4()) > > db.table.field2.requires=IS_NULL_OR(IS_IPV4()) if request.vars.field1 > > else IS_IPV4() > > Thank you for this, Massimo - this is a nice, compact idiom for using > existing validators; I hadn't considered (don't know why not - it's > obvious looking at it) this idiom in assigning to a "requires" field. > > My approach is more general - ANY situation where you want to do some > combinatorial logic, or external checking: form.accepts( ..., > dbio=False)... > > Good question, Jonathan! :-) > > - Yarko > > > > > On Apr 2, 10:32 am, Jonathan Lundell <jlund...@pobox.com> wrote: > > > > I think I've seen an answer to this one, but I can't find it. > > > > I've got a form with two Field's, both IS_IPV4(). The validation I'm > > > after is that one or both must be present; the only invalid case is both > > > of them null. > > > > How do I write that? -- You received this message because you are subscribed to the Google Groups "web2py-users" group. To post to this group, send email to web...@googlegroups.com. To unsubscribe from this group, send email to web2py+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/web2py?hl=en.