# File lib/action_controller/polymorphic_routes.rb, line 73
    def polymorphic_url(record_or_hash_or_array, options = {})
      if record_or_hash_or_array.kind_of?(Array)
        record_or_hash_or_array = record_or_hash_or_array.compact
        record_or_hash_or_array = record_or_hash_or_array[0] if record_or_hash_or_array.size == 1
      end

      record = extract_record(record_or_hash_or_array)

      args = case record_or_hash_or_array
        when Hash;  [ record_or_hash_or_array ]
        when Array; record_or_hash_or_array.dup
        else        [ record_or_hash_or_array ]
      end

      inflection =
        case
        when options[:action].to_s == "new"
          args.pop
          :singular
        when record.respond_to?(:new_record?) && record.new_record?
          args.pop
          :plural
        else
          :singular
        end

      args.delete_if {|arg| arg.is_a?(Symbol) || arg.is_a?(String)}
      named_route = build_named_route_call(record_or_hash_or_array, inflection, options)

      url_options = options.except(:action, :routing_type)
      unless url_options.empty?
        args.last.kind_of?(Hash) ? args.last.merge!(url_options) : args << url_options
      end

      __send__(named_route, *args)
    end