[Html-widget] Either/Or validation

[Mario Minati]

Will Hawes schrieb:
> Probably I've missed something, but how do you go about implementing
> either/or validation?
>
> I have a select box and a set of text fields and require either a
> selected option in the select box or the text fields to be filled in,
> but not both. It occurred to me to use ::Constraint::Callback, but
> this doesn't appear to provide access to the values of other fields.
>
> Writing a custom constraint won't be a problem, just making sure I've
> not overlooked an existing way to do this.
>
> Thanks, Will
>
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What about HTML::Widget::Constraint::Any?

Greets,
Mario