On Martes, 3 de Mayo de 2011 07:50:25 Michael Latta escribió:
> I found at least some of it. There are 5 associations formatted as
> selects. There are a large number (5) of select associations per record
> and with 50 records each record spends about 20 ms generating options,
> sorting the collections and so on. There has to be a way to cache those
> options to save a lot of time.
You can override options_for_association to cache options for each
association:
def options_for_association(association, include_all = false)
options_cache = include_all ? @options_cache_all||={} : @options_cache||={}
options_cache[association.name] ||= super
end
It will work only if options must be the same for all records in all subforms.
>
> Michael
>
> On May 2, 2011, at 11:31 PM, Michael Latta wrote:
> > I have a form that is performing very badly. The form has a large number
> > of sub-form records being displayed: 50 or so.
> >
> > The log shows 200-300 ms for the horizontal header, and about 100 ms for
> > each record. The attribute partials account for about 42 ms of the 100
> > per record.
> >
> > When I attempt to measure the code executed by the header template it is
> > more like 1-2 ms for the calls like getting the config or testing
> > columns for hidden.
> >
> > The total query time reported is < 20 ms and the view time reported is <
> > 10 ms
> >
> > The records have a large number of association columns with form_ui
> > :select.
> >
> > This is on the VHO fork as a gem under 1.9.2p180.
> >
> > Michael
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