This sounds like it may be over-engineered.

Why are you observing fields on a 1.5 second interval instead of using
the "onchange" attribute of your inputs and selects?

Joe

On Nov 26, 3:19 pm, lunaclaire <[email protected]> wrote:
> I have a pretty complex form with many text fields and a number of
> selects. We let the user add multiple types of associated objects to
> the parent object and to edit the values for those associated objs, so
> the form can have something like the following number of fields on the
> page:
>
>    9 text fields + 3 selects + a*(1 text + 1 select) + b*(1 text + 1
> select) + c*(1 text + 1 select) + d*(1 text + 1 select) + e*(1 text +
> 1 select) + f*(7 text + 1 select)
>
> where the a, b, c, etc are the number of the diff types of assoc objs.
>
> Also, it's designed to have an autosave function. I've taken an
> approach that is working, but I'm concerned that it may not be the
> best, mostly from a performance aspect.
>
> Each of the text fields has an observe_field set up for it with
> a  :frequency => 1.5 (this seemed to be the best setting for this to
> catch rapid typing without droopping chars while the autosave is
> performed).
>
> And each of the selects observe_field() does not have the frequency
> set, so that it calls the autosave fxn only on change (vs when the
> user is scrolling over the choices).
>
> Anyway, does anybody see a prob having *lots* of observers like this
> set up on a page? Seems like there could be a prob with having that
> many observe_fields set up for the text fields triggering on a
> frequency basis.
>
> If so, one workaround I thought of was to leave the select observers
> in place and have one observe_field for the currently focused
> text_field to reduce the number number triggering every 1.5 secs.
>
> But, if that sounds good, how would I dynamically change the DOM ID of
> that single observer? Or kill the prev one and create a new one for
> the newly focused field?

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