NoMethodError（未定義的方法'持續？'爲true：TrueClass）

Question

我正在實施一個rails webapp，在這個應用程序中我使用Devise + Omniauth進行身份驗證。在我的Devise模型中，我也使用可確認的模塊。

現在，當我試圖通過omniauth實現社會登錄Facebook或谷歌，我收到以下錯誤

NoMethodError at /customer/auth/google_oauth2/callback 
    undefined method `persisted?' for true:TrueClass 

這裏是我的omniauth_callbacks控制器代碼

class OmniauthCallbacksController < Devise::OmniauthCallbacksController 

    skip_before_filter :authenticate_user! 
    def all 
     p env["omniauth.auth"] 
     user = User.from_omniauth(env["omniauth.auth"], current_user) 
     if user.persisted? 
      flash[:notice] = "You are in..!!! Go to edit profile to see the status for the accounts" 
      sign_in_and_redirect(user) 
     else 
      session["devise.user_attributes"] = user.attributes 
      redirect_to new_user_registration_url 
     end 
    end 

     def failure  
     super 
     end 


    alias_method :facebook, :all 
    alias_method :google_oauth2, :all 
end 

這是代碼來自我的用戶模型的片段

class用戶< ActiveRecord :: Base

devise :database_authenticatable, :registerable, 
     :recoverable, :rememberable, :trackable, :validatable,:confirmable,:token_authenticatable 

def self.from_omniauth(auth, current_user)  
    authorization = Authorization.where(:provider => auth.provider, 
        :uid => auth.uid.to_s, 
        :token => auth.credentials.token, 
        :secret => auth.credentials.secret).first_or_initialize 

    if authorization.user.blank? 
     user = current_user || User.where('email = ?', auth["info"]["email"]).first   
     if user.blank?  
      user = User.new 
      user.name = auth.info.name 
      user.email= auth.info.email 
      if auth.provider == "twitter" 
      user.save(:validate => false) 
      else 
      user.skip_confirmation! 
      user.save(:validate => false) 
      end 
     end 
     authorization.username = auth.info.nickname 
     authorization.user_id = user.id 
     authorization.save 
    end 
    authorization.user 
end 

末

我的用戶模型有很多授權模型（創建以處理來自多個供應商帳戶）

class Authorization < ActiveRecord::Base 
    belongs_to :user 

    after_create :fetch_details 



    def fetch_details 
     self.send("fetch_details_from_#{self.provider.downcase}") 
    end 


    def fetch_details_from_facebook 
     graph = Koala::Facebook::API.new(self.token) 
     facebook_data = graph.get_object("me") 
     self.username = facebook_data['username'] 
     self.save 
    end 
end 

誰能幫我找到爲什麼我收到這個 未定義的方法`堅持？爲true：TrueClass

錯誤？

Answer 1

current_user助手在omniauth行中的作用是什麼？我假設它正在與omniauth環境變量產生某種衝突。

嘗試改變：

user = User.from_omniauth(env["omniauth.auth"], current_user) 

到：

user = User.from_omniauth(env["omniauth.auth"])