Problem in validate_token if the model is in a namespace

[ybian]

TestCase:

1. Setup ng-token-auth and devise_token_auth_demo properly and make it work correctly;
2. Move the model User to a namespace, say, Kuai::User, and change routes.rb accordingly to:
   mount_devise_token_auth_for 'Kuai::User', at: '/auth'
3. Test again with registration. Confirmation email was sent successfully.
4. Click the confirmation link in email.

Expected Result:

Should confirm successfully.

Actual Result:

It seems confirmed. But immediately got the following exception:

Started OPTIONS "/auth/validate_token" for 127.0.0.1 at 2014-11-08 08:17:08 +0800


Started GET "/auth/validate_token" for 127.0.0.1 at 2014-11-08 08:17:09 +0800
Processing by DeviseTokenAuth::TokenValidationsController#validate_token as HTML
Completed 500 Internal Server Error in 1ms

NoMethodError (undefined method `name' for nil:NilClass):
  app/controllers/application_controller.rb:9:in `configure_permitted_parameters'

The error seems in the following code snippets of lib/devise_token_auth/rails/routes.rb:

        devise_for base_name.pluralize.underscore.to_sym,
          :class_name  => resource,
          :module      => :devise,
          :path        => "",
          :controllers => controllers

if I changed it to:

        base_name = resource.split('::').last
        devise_for base_name.pluralize.underscore.to_sym,
          :class_name  => resource,
          :module      => :devise,
          :path        => "",
          :controllers => controllers

It seemed to work but I'm not sure whether this is the right solution... Please take a look.

[lynndylanhurley]

Thanks @ybian! I'll create a test case for this scenario.

[lynndylanhurley]

The fix for this has been pushed into version 0.1.30.beta4. Please test to confirm.

[mkralla11]

I know this issue is old but still exists/reappears in 0.1.32.beta5 (could be other newer versions as well). I believe its more of an issue with how devise handles the key mapping with Devise.mappings[devise_mapping] for namespaced models. Here is an example case that happens:
resource name is:
Sassed::User

devise's mapping key produces:
:sassed/user
devise_token_auth's mapping key produces:
:sassed_user

#routes.rb
mount_devise_token_auth_for 'Sassed::User', at: 'auth'

module DeviseTokenAuth
  class OmniauthCallbacksController < DeviseTokenAuth::ApplicationController
...
          def redirect_callbacks
            # The line below from original source code does not reflect
            # the correct key value set by devise
            # devise_mapping = request.env['omniauth.params']['resource_class'].underscore.to_sym
            # producing, for example: :sassed/user

            # A quick fix to make the keys match between devise and devise_token_auth
            # is shown below by replacing the / with an underscore:
            devise_mapping = request.env['omniauth.params']['resource_class'].underscore.gsub("/", "_").to_sym
            redirect_route = "/#{Devise.mappings[devise_mapping].as_json["path"]}/#{params[:provider]}/callback"

            # preserve omniauth info for success route
            session['dta.omniauth.auth'] = request.env['omniauth.auth'].except(:extra)
            session['dta.omniauth.params'] = request.env['omniauth.params']

            redirect_to redirect_route
          end
...
end

Let me know if you need more information. Nice work on the gem!

[c0mrade]

I think this might be related with #166

[joeesteves]

Hello, @mkralla11 @lynndylanhurley ,
I have the same problem using a namespace model called Ba::Usuarios (spanish word for Users and Ba:: is because it's in a module Ba:: = Base). The devise_mapping variable was set to ba/usuario when it should be ba_usuario.
i' ve soved by adding ** .gsub('/','_') ** method to the codeline it's seems to be working.

is there a correct form of doing this ?

def redirect_callbacks

  devise_mapping = request.env['omniauth.params']['resource_class'].underscore.gsub('/','_').to_sym
  redirect_route = "/#{Devise.mappings[devise_mapping].as_json["path"]}/#{params[:provider]}/callback"

my routes.rb file

Rails.application.routes.draw do

mount_devise_token_auth_for 'Ba::Usuario', at: 'auth'

namespace :ba do
    resources :usuarios
end
end

thank you,
Excelent gem!

[joeesteves]

This issue (#355) "using namespaces in the user module" can also be solved by the previous answer!