Rails 4 Devise 3.1.1 ActionController::UnknownFormat in Devise::RegistrationsController#new

Question

I am working on a Rails 4 app using Devise 3.1.1 for user authentication. When I click on /users/sign_up.user link Rails throws following exception:

ActionCo         


        

Answer 1

I did not want to change default links produced by Devise which appended ".user" at the end of each link. Devise produced following links:

new_user_registration_path(resource_name) new_user_session_path(resource_name) new_user_password_path(resource_name)

resource_name, which is user, as parameter to the path in link_to method which tells it to use ".user" as format. So I just removed resource_name from each path. I wonder why Devise does this though!

Answer 2

When you say you click on the /users/sign_up.user link, do you literally mean that exact path? Because the .user on the end is telling it to try and respond with a user format, akin to pdf, xml, or json. Remove that and see what happens.

Answer 3

I've just resolved this problem also.

The solution is to revert all paths to Devise default ones, meaning to say no _user infix.

Note that we are not able to test in console these code:

user = User.all.sample
app.new_registration_path(user)

because Devise use its helper to transform the url automatically internally so we cannot test from outside.

Answer 4

@zeeshan's answer works, you can also the functions without the _user infix:

new_registration_path(resource_name)

new_session_path(resource_name)

new_password_path(resource_name)