Redirect With Params

Preserve query parameters through Rails routing redirects
Compatible with Rails 3.2+ & Rails 4

Add this line to your application's Gemfile:

gem 'redirect_with_params'

And then execute:

$ bundle

Use redirect_with_params in place of redirect in your Routes file. This will preserve the query parameters in the redirect.

My::Application.routes.draw do
  get "some/route/:id" => redirect_with_params { |path_params, request| "/some/new/route/#{path_params[:id]}" }
end

Navigating your browser to /some/route/123?my_param=zebra&source=web will redirect you to /some/new/route/123?my_param=zebra&source=web

Optionally, you can specify a param whitelist:

My::Application.routes.draw do
  get "some/route/:id" => redirect_with_params(:source) { |path_params, request| "/some/new/route/#{path_params[:id]}" }
end

Navigating your browser to /some/route/123?my_param=zebra&source=web will redirect you to /some/new/route/123?source=web

1. Fork it
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create a new Pull Request