Matt Harrison wrote:> I''ve just made my first form using select boxes that update each
other
> via observe_field. It works really well for the creation of record and
> it''s making the form a whole lot nicer to use.
>
> The problem is editing records, the first select box is not part of the
> model but is used to populate the second select, which is a required
> attribute of the model. When the edit form is displayed, the second box
> is blank (as the first needs to be selected) and so you have to manually
> change it before you edit anything else and submit the form.
>
> I''m hoping there''s some clever trick I haven''t
even thought of that
> could make this work. Ideally, when the form is displayed, id like it to
> get set the first select box based on the contents of the second, and
> then set the second to the models attribute.
>
> I''m not sure if I''m explaining this very well so please
don''t hestitate
> to shout for more info. I''d be very grateful to know how to get
around this.
I''ve managed to solve this, just in case anyone else comes looking for
this solution:
I changed the edit form so that it populates the first select box
normally and sets it up to update the second box, but made it set
:selected on the right entry.
Then I populated the second box initially with only the relevant entries
and set :selected on the correct one.
Now, the form can be submitted without manually selecting the right
entries, but if the user wishes to change them, ajax will still work.
I know the explanation of the problem or the solution isn''t very good,
but I hope this might help someone in the same situation.
Matt