handle_model

# File actionpack/lib/action_dispatch/routing/polymorphic_routes.rb, line 263
          def handle_model(record)
            args  = []

            model = record.to_model
            named_route = if model.persisted?
              args << model
              get_method_for_string model.model_name.singular_route_key
            else
              get_method_for_class model
            end

            [named_route, args]
          end