From: James Edward Gray II <james@...>
Date: 2007-06-13T22:45:31+09:00
Subject: Re: sorting arrays within an array by the first object in...

On Jun 13, 2007, at 8:39 AM, Mike Dershowitz wrote:

> I have a parent array of child arrays.
>
> Each child array contains a set of objects.  These objects are all  
> from
> the same model.
>
> I know that each child array contains at least one object.  I want to
> sort on a field in the first object in each child array, and  
> arrange the
> child arrays in the parent array according to that field in the first
> object in the child arrays.  What's the best way to do this?

   parent_array.sort_by { |child_array|  
child_array.first.field_name_here }

If I understood the question correctly.

James Edward Gray II