Rails - Aug 2008 - Best Approach for Master/Slave Form SELECTs

I want to have the second select options dependent on the selection of
the first select option.  Is this built into Rails?  I haven''t seen it.

I''d rather not right JavaScript and Ajax to pull values in background
unless necessary.

Pete
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Hi Peter,

Peter Alvin wrote:
> I want to have the second select options dependent on the
> selection of the first select option.  Is this built into Rails?
No.
> I''d rather not right JavaScript and Ajax to pull values in
> background unless necessary.
It''s necessary, but not difficult.  You put an observe_field on the
first
select that calls a controller method when the select changes, passing along
the value selected.  The controller method (re)renders the second select via
rjs, either inline in the method or via a separate rjs view.  Search the
list archives.  The question''s been asked / answered many, many times.

HTH,
Bill


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