# File lib/action_dispatch/routing/polymorphic_routes.rb, line 78
      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)
        record = record.to_model if record.respond_to?(:to_model)

        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 = if options[:action].to_s == "new"
          args.pop
          :singular
        elsif (record.respond_to?(:persisted?) && !record.persisted?)
          args.pop
          :plural
        elsif record.is_a?(Class)
          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