From: Xavier Noria <fxn@...>
Date: 2008-08-28T21:13:38+09:00
Subject: Re: Sort an array based on an attribute of its objects

On Thu, Aug 28, 2008 at 1:39 PM, Joshua Muheim <forum@josh.ch> wrote:

> I have a array of some objects:
>
> [obj1, obj2, obj3, obj4]
>
> All objects have a method "status" that returns a status object, like
> "open", "request", "cancelled", "completed" etc.
>
> Now I'd like to sort the elements after theses statuses into a new hash,
> so in the end it should look something like this:
>
> {status1 => [obj1, obj3],
> status3 => [obj2],
> status4 => [obj4]}

If working with a Set is fine (there's #to_set) that's provided by Set#classify.