Used to retrieve the full url for a given named route alias from the named_paths data Accepts parameters which will be substituted into the url if necessary #url_for(:accounts) => ‘/accounts’ #url_for(:account, :id => 5) => ‘/account/5’ #url_for(:admin, show, :id => 5, :name => “demo”) => ‘/admin/path/5/demo’
# File lib/padrino-routing/helpers.rb, line 9 def url_for(*route_name) params = route_name.extract_options!.reject { |name, val| val.blank? } route_name.unshift(self.class.app_name.to_sym) unless route_name.first == self.class.app_name.to_sym mapped_url = self.class.named_paths[route_name] raise Padrino::RouteNotFound.new("Route alias #{route_name.inspect} is not mapped to a url") unless mapped_url result_url = String.new(File.join(self.class.uri_root, mapped_url)) result_url.scan(%r{/?(:\S+?)(?:/|$)}).each do |placeholder| param_key = placeholder[0][1..-1].to_sym param_obj = params.delete(param_key) param_value = param_obj.respond_to?(:to_param) ? param_obj.to_param : param_obj result_url.gsub!(Regexp.new(placeholder[0]), param_value.to_s) end result_url << "?" + params.to_params if params.any? result_url end