add_params

# File actionpack/lib/action_dispatch/http/url.rb, line 81
        def add_params(path, params)
          params = { params: params } unless params.is_a?(Hash)
          params.reject! { |_, v| v.to_param.nil? }
          query = params.to_query
          path << "?#{query}" unless query.empty?
        end