fix for broken :all_blank in rails

gistfile1.rb

  def nested_all_blank(attributes)
    attributes.reject { |key, value| ['_destroy', :_destroy].include?(key) && [false, 0, 'f', 'false'].include?(value) }.all? do |_, value|
      if value.is_a?(Hash)
        nested_all_blank(value)
      else
        value.blank?
      end
    end
  end