Got a hash of values you want to convert into a url query string? Use the to_query method:

"http://www.example.com?" + { language: "ruby", status: "awesome" }.to_query # => "http://www.example.com?language=ruby&status=awesome"

Want to do it in reverse? Use CGI.parse:

require 'cgi' # Only needed for IRB, Rails already has this loaded CGI::parse "language=ruby&status=awesome" # => {"language"=>["ruby"], "status"=>["awesome"]}

Both methods support nested values.

This tip was submitted by Victor Solis.