路由错误：未初始化的常量 Users::OmiauthCallbackController答案

【问题标题】：Routing error: uninitialized constant Users::OmiauthCallbackController路由错误：未初始化的常量 Users::OmiauthCallbackController
【发布时间】：2014-02-01 19:23:13
【问题描述】：

试图让用户使用 facebook 登录，但我明白了

路由错误：未初始化常量Users::OmiauthCallbackController错误

类用户::OmniauthCallbacksController

def facebook

    @user = User.find_or_create_from_auth_hash auth_hash
            if @user.persisted?
                    sign_in_and_redirect @user
            else
                session["devise.user_attributes"] = @user.attributes
                redirect_to new_user_registration_url, notice: "Oops, something went wrong"
            end
        end

    private

def auth_hash request.env['omniauth.auth'] 结尾结束

路由文件

Fbapp::Application.routes.draw 做 devise_for ：用户，控制器：{omniauth_callbacks：'users/omiauth_callback'} 资源：帖子

获取“页面/主页” 根“pages#home”

user rb file

 class User < ActiveRecord::Base
  # Include default devise modules. Others available are:
  # :confirmable, :lockable, :timeoutable and :omniauthable
  devise :database_authenticatable, :registerable,
         :recoverable, :rememberable, :trackable, :validatable, :omniauthable

   def self.find_or_create_from_auth_hash(auth_hash)
        find_by_auth_hash(auth_hash) || create_from_auth_hash(auth_hash)
   end

   def self.find_by_auth_hash(auth_hash)
        where(
                  provider: auth_hash.provider,
              uid: auth_hash.uid
              ).first
    end

   def self.create_from_auth_hash(auth_hash)
    create(
                provider: auth_hash.provider,
                uid: auth_hash.uid,
              email: auth_hash.info.email,
            name: auth_hash.info.name,
            oauth_token: auth_hash.credentials.token,
            oauth_expires_at: Time.at(auth_hash.credentials.expires_at)
             )

   end 

   def password_required?
        super && provider.blank?
   end

   def update_with_password(params, *options) 
        if encrypted_password.blank?
                update_attributes(params, *options)

  else
        super
  end
end

结束

def facebook 
    @facebook ||= Koala::Facebook::API.new(oauth_token)
  end

  def get_profile_info
      self.facebook.get_object("me")
  end

  def get_location
    h = get_profile_info["location"]
    h["name"]

  end 

  def get_books
    self.facebook.get_connection("me", "books")
  end

  def get_profile_picture
    self.facebook.get_picture(uid)
  end


end

【问题讨论】：

你能把剩下的课贴上去吗
你的 routes.rb 文件中有什么？例如，我希望类似 'devise_for :users, :controllers => { :omniauth_callbacks => "users/omniauth_callbacks" }'
尼尔他的意思是编辑您的帖子并将其粘贴到那里，并在其中正确格式化代码......而不是在 cmets 中。
如前所述添加代码

标签： ruby-on-rails facebook devise

【解决方案1】：

在我的路线文件中拼写错误。应该说omniauth_callbacks

Fbapp::Application.routes.draw do
  devise_for :users, controllers: {omniauth_callbacks: 'users/omniauth_callbacks'}
  resources :posts

  get "pages/home"
  root "pages#home"

【讨论】：