handle_model

# File actionpack/lib/action_dispatch/routing/polymorphic_routes.rb, line 250
        def handle_model(record)
          args  = []

          model = record.to_model
          name = if model.persisted?
                   args << model
                   model.model_name.singular_route_key
                 else
                   @key_strategy.call model.model_name
                 end

          named_route = prefix + "#{name}_#{suffix}"

          [named_route, args]
        end