Symbolize All The Keys!

symbolize_all_the_keys!.rb

#
# Symbolize All The Keys....forreealz

class Hash
  def symbolize_keys
    inject({}) do |result, (key, v)|
      key = key.to_sym rescue key

      if v.is_a?(Hash)
        result[key] = v.symbolize_keys
      else
        result[key] = v
      end

      result
    end
  end

  def symbolize_keys!
    self.replace symbolize_keys
  end
end


foo =  { "foo" => { "bar" => "baz" } }

puts "foo #{foo.inspect}"
puts foo.symbolize_keys
puts "foo.symbolize_keys #{foo.inspect}"
puts foo.symbolize_keys!
puts "foo.symbolize_keys! #{foo.inspect}"


# Output

# foo {"foo"=>{"bar"=>"baz"}}
# {:foo=>{:bar=>"baz"}}
# foo.symbolize_keys {"foo"=>{"bar"=>"baz"}}
# {:foo=>{:bar=>"baz"}}
# foo.symbolize_keys! {:foo=>{:bar=>"baz"}}