MISSION:

  • fix registration: 
    NoMethodError in Devise::RegistrationsController#create
undefined method `user_url' for #<Devise::RegistrationsController:0x0000000000de58>
  • fix log_out: 
    No route matches [GET] "/users/sign_out"
  • sign_in - validation errors do not display

TLDR: add , data: { turbo: "false" } / "data-turbo" => "false" to Devise forms and buttons

I’ve been hearing that “devise & turbo don’t play well yet” for many months, and I just waited…

Well, it’s been 10 months since turbo was announced (Dec 20, 2020).

Now we have Turbo 7.0, Rails 7 alpha2, and the Devise maintainer says that Devise is ready.

So, let’s try to install devise on a Rails 7 alpha2 app (that uses Turbo by default)

0. Install devise

Gemfile - use main

-- gem "devise" # use last release
-- gem "devise", github: "heartcombo/devise" # use git source
++ gem 'devise', github: 'heartcombo/devise', branch: 'main' # use main. it's stable.

rails generate devise:install
rails generate devise User
rails db:migrate

# app/controllers/application_controller.rb
  before_action :authenticate_user!

1. Fix log_out

# app/views/layouts/application.html.erb
  <% if signed_in? %>
    <%= link_to current_user.email, edit_user_registration_path %>
--    <%#= link_to "Log out", destroy_user_session_path, method: :delete %>
--    <%#= button_to "Log out", destroy_user_session_path, method: :delete, form: { "data-turbo" => "false" } %>
++    <%= button_to "Log out", destroy_user_session_path, method: :delete, data: { turbo: "false" } %>
  <% else %>
    <%= link_to "Log in", new_user_session_path %>
    <%= link_to "Register", new_user_registration_path %>
  <% end %>

2. Fix registration

-- rails generate devise:views
++ rails generate devise:views -v registrations

# app/views/devise/registrations/new.html.erb
-- <%= form_for(resource, as: resource_name, url: registration_path(resource_name)) do |f| %>
++ <%= form_for(resource, as: resource_name, url: registration_path(resource_name), html: { data: { turbo: false} } ) do |f| %>

3. Fix sign_in

Validation errors do not display. This has to be fixed.

-- rails generate devise:views
++ rails generate devise:views -v sessions

# app/views/devise/sessions/new.html.erb
-- <%= form_for(resource, as: resource_name, url: session_path(resource_name)) do |f| %>
++ <%= form_for(resource, as: resource_name, url: session_path(resource_name), html: { data: { turbo: false} } ) do |f| %>

4. Fix all other views…

add , data: {turbo: false} to all other forms:

app/views/devise/confirmations/new.html.erb
app/views/devise/passwords/edit.html.erb
app/views/devise/passwords/new.html.erb
app/views/devise/registrations/new.html.erb
app/views/devise/sessions/new.html.erb

That’s it! Should work OK.

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