From: Brian Candler <b.candler@...>
Date: 2009-04-15T18:23:54+09:00
Subject: Re: how to sort my hash

Sukhwinder Tambar wrote:
> this is my hash .. i want to sort this by 'business_continuity'

Actually it's an Array.

Both Hash and Array are Enumerable, and Enumerable has sort_by method.

  work_orders = work_orders.sort_by { |e| e.business_continuity }

However, false and true are not comparable, so you need to substitute 
some values which do. For example, if you want false to sort before 
true, then:

  work_orders = work_orders.sort_by { |e| e.business_continuity ? 1 : 0 
}

If it's really a hash of key=>record, then

  my_hash.sort_by { |k,v| v.business_continuity ? 1 : 0 }
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