Forum: Ruby on Rails How to get which field changed in observe_form helper

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Zhao Y. (Guest)
on 2009-01-02 10:09
I use observe_form to monitor all the fields in a form. But how can I
get which field changed?
pepe (Guest)
on 2009-01-03 20:03
(Received via mailing list)
You could save the form values to a session or flash and compare to
the values from the form delivered by observe_form. This would be
especially easy if the form is based on an object.

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