attributes hash for any object

attributes_for.rb

# convert results of calling methods into attributes hash.
# e.g. Date.today.attributes_for(:day, :month, :year) would return
# {:day => 13, :month => 3, :year => 2010}
class Object
  
  def attributes_for(*method_names)
    method_names.inject({}) do |hash, method_name|
      hash[method_name] = send(method_name)
      hash
    end
  end
  
end