Find() with id array - can i preserve the ordering?

Rails
1

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

2

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 S.
http://blog.hasmanythrough.com

3

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