未定义的方法`色器件”的用户（称之为‘User.connection’建立连接）：

Question

类

我有这个问题

undefined method `devise' for User (call 'User.connection' to establish a connection):Class 

这里的每一个回答下面没有运行

指出的命令

rails generate devise:install 

但是我实际上完成了安装devise gem的过程，我也添加了omniauth-facebook gem，它可以工作几次。但是当我尝试提交并载入我的生产现场折断和多数民众赞成在错误然后我回到我的测试网站它打破太反正继承人的完整代码

的Gemfile：

gem 'rails', '~> 5.0.2' 
gem 'puma', '~> 3.0' 
gem 'sass', '~> 3.5', '>= 3.5.1' 
gem 'sass-rails', '~> 5.0.4' 
gem 'uglifier', '>= 1.3.0' 
gem 'coffee-rails', '~> 4.2' 
gem 'autoprefixer-rails', '~> 7.1', '>= 7.1.3' 
gem 'jquery-rails' 
gem 'turbolinks', '~> 5' 
gem 'jbuilder', '~> 2.5' 
gem 'devise' 
gem 'bootstrap', '~> 4.0.0.beta' 
gem 'font-awesome-rails', '~> 4.7', '>= 4.7.0.1' 
gem 'country_select' 
gem 'carrierwave', '~> 0.11.2' 
gem 'carrierwave-base64' 
gem 'fog-aws' 
gem 'fog' 
gem 'figaro', '~> 1.1', '>= 1.1.1' 
gem 'acts_as_follower', github: 'tcocca/acts_as_follower', branch: 'master' 
gem 'faker', '~> 1.6', '>= 1.6.3' 
gem 'acts_as_votable', '~> 0.10.0' 
gem 'omniauth' 
gem 'omniauth-facebook' 
gem 'sprockets-rails', '~> 3.1', '>= 3.1.1' 

路线：

Rails.application.routes.draw do 
    resources :items do 
    member do 
     put "vote", to: "items#vote" 
    end 
    end 
    resources :profiles 
    resources :relationships, only: [:create, :destroy] 


    devise_for :users, :controllers => { :omniauth_callbacks => "users/omniauth_callbacks" } 
    resources :users do 
    member do 
     get :following, :followers 
    end 
    end 

    get 'pages/wish' 

    devise_scope :user do 
    authenticated :user do 
     root to: 'pages#index', as: :authenticated_root 
    end 

    unauthenticated do 
     root 'devise/sessions#new', as: :unauthenticated_root 
    end 
    end 

    namespace 'api' do 
    namespace 'v1' do 
     resources :items 
    end 
    end 


end 

devise.rb：这个唯一的代码我加入Devise.rb

config.omniauth :facebook, ENV["FB_APP_ID"], ENV["FB_APP_SECRET"] 

User.rb：

devise :database_authenticatable, :registerable, 
     :recoverable, :rememberable, :trackable, :validatable, 
     :omniauthable, omniauth_providers: [:facebook] 

def has_facebook_linked? 
    self.provider.present? && self.uid.present? 
    end 

    def apply_omniauth(auth) 
    update_attributes(
     provider: auth.provider, 
     uid: auth.uid 
    ) 
    end 

    def self.from_omniauth(auth) 
    where(provider: auth.provider, uid: auth.uid).first_or_create do |user| 
     user.email = auth.info.email 
     user.provider = auth.provider 
     user.uid = auth.uid 
     user.password = Devise.friendly_token[0,20] 
    end 
    end 

OmniauthCallbacksController：

class Users::OmniauthCallbacksController < Devise::OmniauthCallbacksController 
    def facebook 
     if current_user.present? 
      current_user.apply_omniauth(request.env["omniauth.auth"]) 
      redirect_to edit_user_registration_path, notice: "Facebook Account Linked!" 
     else 
      @user = User.from_omniauth(request.env["omniauth.auth"]) 
      sign_in_and_redirect @user 
     end 
    end 
end 

Answer 1

Ive得到了它在我自己解决这样我所做的是将这个标签

extend Devise::Models 

在我user.rb文件

的user.rb文件看起来像这样

class User < ApplicationRecord 
    extend Devise::Models 

# more code bellow.... 
end