From: michael greenly <mgreenly@...>
Date: 2007-12-31T09:22:21+09:00
Subject: turn nested hashes into nested ostructs

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I just thought I'd share this on the off chance anyone would find it useful.
 It simply turns a nested hash into a nested ostruct.

require 'ostruct'
class NestedOstruct
   def self.new(hash)
     OpenStruct.new(hash.inject({}){|r,p| r[p[0]] = p[1].kind_of?(Hash) ?
NestedOstruct.new(p[1]) : p[1]; r })
   end
end

Which allows you to do this...

>> a = NestedOstruct.new( :b => { :c => { :d => {:e => 42 } } } )
=> #<OpenStruct b=#<OpenStruct ...>>
>> a.b.c.d.e
=> 42

It's pretty basic but I found the NestedOstruct with YAML::load_file pretty
useful today.

-- 
Michael Greenly
http://blog.michaelgreenly.com

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