Rails - Jul 2006 - find() with id array - can i preserve the ordering?

Sort of a newbie question - sorry if it''s been asked before and I
missed it
in my search.

I have an id_array of Author ids, and I want to retrieve the associated
Author models as quickly as possible, but also preserve the ordering of the
id_array.

Using Author.find(id_array) returns the records, but not in the same order.
Is there some flag I can pass to find() to preserve the order?  I want to
avoid looping through the id array and finding the models individually.

Thanks in advance,
John
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john li wrote:
> I have an id_array of Author ids, and I want to retrieve the associated
> Author models as quickly as possible, but also preserve the ordering of 
> the id_array.
Author.find(id_array).sort_by { |e| id_array.index(e.id) }

--
Josh Susser
http://blog.hasmanythrough.com

-- 
Posted via http://www.ruby-forum.com/.

Ah, I was wondering if there was some simple built-in flag to do it, but
that code snippet should definitely work too.  Thanks!

On 7/15/06, Josh Susser <josh@hasmanythrough.com>
wrote:
>
> john li wrote:
> > I have an id_array of Author ids, and I want to retrieve the
associated
> > Author models as quickly as possible, but also preserve the ordering
of
> > the id_array.
>
> Author.find(id_array).sort_by { |e| id_array.index(e.id) }
>
> --
> Josh Susser
> http://blog.hasmanythrough.com
>
> --
> Posted via http://www.ruby-forum.com/.
> _______________________________________________
> Rails mailing list
> Rails@lists.rubyonrails.org
> http://lists.rubyonrails.org/mailman/listinfo/rails
>


-- 
John Li
Two-Bit Operation LLC
http://www.twobitoperation.com
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