Error with authentication

[quellhorst]

On our app we are using your devise_token_auth but getting an exception:

[PROJECT_ROOT]/vendor/bundle/ruby/2.0.0/gems/activerecord-4.1.4/lib/active_record/dynamic_matchers.rb:26:in method_missing' NoMethodError: undefined methodfind_by_uid' for #Class:0x007f6622678fd8

Any idea what is the cause?

[lynndylanhurley]

• Which route are you trying to access?
• Have you included the model concern in your user model?
• Have you run the migration?

[quellhorst]

route is test#members_only mounted with
get 'members_only' => 'test#members_only'

in routes.rb I have:
mount_devise_token_auth_for 'User', at: '/auth'

in user.rb I have:
class User < ActiveRecord::Base
include DeviseTokenAuth::Concerns::User

I just connected to the server and we already have UID in the users table from the migration

[lynndylanhurley]

The error method_missing' NoMethodError: undefined method find_by_uid suggests that either uid isn't defined on the User model, or that the server is trying to run find_by_uid on the wrong model or class.

If you open a rails console using rails c, can you manually run find_by_uid for an existing user? For example, if a user's uid is 123, try running User.find_by_uid(123).

[quellhorst]

It appears that the error was somehow caused by having:
gem 'activeadmin', github: 'gregbell/active_admin'

Active_admin was also using devise and I think that it somehow overwrote find_by_uid?

[lynndylanhurley]

That's really strange. I'll install active_admin and see if I can reproduce the bug.

[lynndylanhurley]

@quellhorst - I've installed active admin, but I still can't reproduce this bug. Are there any other gems that could be causing conflicts?

[quellhorst]

@lynndylanhurley I'll look and see.

[pedroviana]

I was facing this issue and fix by changing regenerating different user model name like AdminUser for example, and everything works fine.

[godinezb]

I'm recently run into the same error. With devise_token_auth (0.1.39), when trying to access a specific resource:

undefined method `find_by_uid' for #Class:0x007f90096c6a60

I checked my migrations, and I'm able to run AppUser.find_by_uid("[email protected]"), the problem shows up when I try to access index action on my vehicle resource:

get '/app_users/:app_user_id/vehicles' => 'vehicles#index'

This is my index action:

module Api
  module V1
    class VehiclesController < ApiController
      before_action :authenticate_app_user!
      before_action :set_vehicle, only: [:show, :edit, :update, :destroy]

      def index
        render json: Vehicle.where(owner_id: params[:app_user_id])
      end
     [...]
  end
end

Any idea what might be causing Devise Token Auth to try to run 'find_by_uid' on my vehicles controller?

@pedroviana 's solution didn't worked for me because my user model is called AppUser and not User...

Thanks.

[pedroviana]

@godinezb are you using active_admin? if so try to define the devise_token_auth routes before active_admin routes like

`mount_devise_token_auth_for 'User', at: 'auth', controllers: {
registrations: 'auth/registrations',
passwords: 'auth/passwords'
}

devise_for :admin_users, ActiveAdmin::Devise.config
ActiveAdmin.routes(self)`

[godinezb]

Hey @pedroviana thanks for replying. But I'm not using Active admin, what I'm using is Active Model Serializers, I have checked in other issues and the versions I have shouldnt be causing errors, I'm feeling really desperate at this point..

[pedroviana]

@godinezb I am using version 0.1.36, can you try it?

[godinezb]

Using this gems:

gem 'active_model_serializers', '0.10.0.rc4'
gem 'devise_token_auth', '0.1.36'
gem 'devise', '3.5.2'

And I'm still getting the same errors:

Completed 500 Internal Server Error in 93ms (ActiveRecord: 4.0ms)
Reporting exception: undefined method `find_by_uid' for #<Class:0x007fdcaf932a68>

When my controller tries to get the json response, the method 'find_by_uid' its called in a non devise_token_auth model...

[pedroviana]

@godinezb type here the full implementation of devise_token_auth, migrations, routes, model and config file

[godinezb]

Sure, here are my configuration files.
Routes:

devise_for :app_users

namespace :api do
  scope :v1 do
    mount_devise_token_auth_for 'AppUser', at: 'auth'
  end
end

Model:

class AppUser < ActiveRecord::Base
  devise  :database_authenticatable, :recoverable, :rememberable,
          :trackable, :validatable, :registerable
  include DeviseTokenAuth::Concerns::User
  has_many :vehicle_owners, :class_name => 'Vehicle', :foreign_key => 'owner_id'
  has_many :vehicle_drivers, :class_name => 'Vehicle', :foreign_key => 'driver_id'
end

Config file:

DeviseTokenAuth.setup do |config|
  config.change_headers_on_each_request = false
end

Schema:

create_table "app_users", force: :cascade do |t|
    t.string   "name"
    t.string   "lastnames"
    t.boolean  "admin"
    t.integer  "family_id"
    t.datetime "created_at",                               null: false
    t.datetime "updated_at",                               null: false
    t.string   "email",                  default: "",      null: false
    t.string   "encrypted_password",     default: "",      null: false
    t.string   "reset_password_token"
    t.datetime "reset_password_sent_at"
    t.datetime "remember_created_at"
    t.integer  "sign_in_count",          default: 0,       null: false
    t.datetime "current_sign_in_at"
    t.datetime "last_sign_in_at"
    t.inet     "current_sign_in_ip"
    t.inet     "last_sign_in_ip"
    t.string   "provider",               default: "email", null: false
    t.string   "uid",                    default: "",      null: false
    t.string   "confirmation_token"
    t.datetime "confirmed_at"
    t.datetime "confirmation_sent_at"
    t.string   "unconfirmed_email"
    t.json     "tokens"
  end

  add_index "app_users", ["reset_password_token"], name:
    "index_app_users_on_reset_password_token", unique: true, using: :btree
  add_index "app_users", ["uid", "provider"], name: 
    "index_app_users_on_uid_and_provider", using: :btree

Thanks again.