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()

On Apr 2, 10:32 am, Jonathan Lundell <[email protected]> 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?

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