> I can't get the field_with_errors div's to wrap around nested fields in a
> fields_for block when using a custom validation method in the parent model.
> e.g. there needs to be at least one order detail record associated with an
> order. I add the error to the parent model errors hash however I can't get
> the key to match the form field so that the wrapping div's get applied.
> This does work for local attributes and for validation in the actual nested
> model. Can anybody tell me how to get the keys in the error's hash to match
> the nested fields in my form?