Devise sign-out link broken by default. Rails-turbo or rails/ujs required.

[eoinkelly]

Symptoms

Currently the apps we generate have neither rails-ujs nor rails-turbo installed. This means that the Devise sign out link will not work:

<a rel="nofollow" data-method="delete" href="/users/sign_out">Sign out</a>

Why is this happening?

Rails 7 does not automatically import any JS for us.

Our options

Option 1: enable @rails/ujs

1. yarn install @rails/ujs
2. add the following to our packs/application.js

   import Rails from '@rails/ujs';
   Rails.start();

Option 2: enable turbo-rails

Instructions: https://github.com/hotwired/turbo-rails

Recommendation

rails-turbo brings a lot of functionality along with it. I think that this functionality is a useful default for Rails apps in 2023+ but I can see reasonable arguments for taking a more minimal approach. We should make a decision because the current situation makes our devise setup broken out of the box.

[lukeify]

Discussed this at rails guild on 8 September. Seems like we're leaning towards turbo-rails. We could also setup turbo to be disabled by default and behind a flag if we didn't want to force turbo on new projects.

[lukeify]

We are going to proceed with turbo-rails.

[G-Rath]

FYI I've generated a fresh rails app and this is still broken for me - using ujs did work for me though