设计/Rails：没有路由匹配 [GET] “/users/sign_out”

Question

I'm a bit confused about how devise is routing my requests, for some reason I can't go to the sign-out path in my app now:

ActionController::RoutingError (No route matches [GET] "/users/sign_out")

Here is what my routes related to my User model and Devise look like:

devise_for :users, :controllers => {:registrations => "registrations"}
devise_scope :user do
  get '/settings' => 'registrations#edit'
end

Would defining that scope prevent my other routes from working as well?

Update

I don't think that it's supposed to be GET request, as my link looks like:

<%= link_to "Sign out", destroy_user_session_path, :method => :delete %>

Answer 1

If you try to go to /users/sign_out by typing it in the address bar of your browser, or linking to it normally, you will get this error. To summarize some comments and answers here and from issues at the devise repo on github:

This is the intended functionality, RESTful apps should not modify state with a GET request.

You can fix this by making a link that uses the DELETE method as mentioned by @Trip, @fuzzyalej, and the update by @Joseph Silvashy.

Alternatively, (and less recommended), in /config/initializers/devise.rb, you could make the following change

config.sign_out_via = :delete

to

config.sign_out_via = :get

I came across this issue while following along with http://railscasts.com/episodes/209-introducing-devise and with the older version of devise he's using there, this was not an issue.

Answer 2

Just so this post has an answer :

This must be sent with the method, delete so that it does not default to a get

<%= link_to "Sign out", destroy_user_session_path, :method => :delete %>

Answer 3

If you're using SSL with Devise controllers, and trying to sign out from an 'http' url, what's happening is it's sending the DELETE request to the #destroy method, but then redirecting to the https version via GET. You can fix this by adding the https to the sign out link like so:

= link_to "Sign out", destroy_user_session_url(protocol: 'https'), method: :delete

Note: must be 'url' instead of 'path'

Answer 4

Keep your devise.rb using the correct HTTP method:

# good 
config.sign_out_via = :delete

# bad
config.sign_out_via = :get

Use button_to instead of link_to

# good 
= button_to "Sign Out", destroy_user_session_path, method: :delete

# bad
= link_to "Sign Out", destroy_user_session_path, method: :delete"

If you are using bootstrap (keep it classy)

= link_to "Sign Out", destroy_user_session_path, method: :delete, class: "btn btn-default btn-sm"

Answer 5

From the rails documentation :

link_to("Destroy", "http://www.example.com", :method => :delete, :confirm => "Are you sure?")
# => <a href='http://www.example.com' rel="nofollow" data-method="delete" data-confirm="Are you sure?">Destroy</a>

Answer 6

I had the same problem and to solve it took these steps: 1) include the //= require jquery_ujs in the assets/javascripts/application.js 2) add gem 'jquery-rails' to my gemfile 3) bundle install

... and it worked.

Answer 7

devise_for :users
devise_scope :user do
  get '/users/sign_out' => 'devise/sessions#destroy'
end

in your routes.rb .