Convert a nested hash into an OpenStruct object.

deep_open_struct.rb

require 'ostruct'

def deep_ostruct(hash)
  if hash
    hash.each do |k,v|
      hash["#{k}"] = deep_ostruct(v) if v.is_a?(Hash)
    end
  end
  OpenStruct.new(hash)
end

# Here is an example

hash = {
  "one" => 1,
  "two" => 2,
  "three" => 3,
  "squares" => {
    "one_sq" => 1,
    "two_sq" => 4,
    "three_sq" => 9
  }
}

new_object = deep_ostruct(hash)
new_object.one # => 1
new_object.two # => 2
new_object.squares # => #<OpenStruct one_sq=1, two_sq=4, three_sq=9>
new_object.squares.three_sq # => 9