我已经遵循这个教程(
http://railscasts.com/episodes/236-omniauth-part-2)用OmniAuth和Devise创建facebook登录,并且我得到这个错误：在我的routes.rb中自动加载常量的用户检测到循环依赖
devise_for :users,:controllers => {:registrations => 'registrations'}
registrations_controller.rb
Class RegistrationsController < Devise::RegistrationsController
def create
super
session[:omniauth] = nil unless @user.new_record?
end
private
def build_resource(*args)
super
if session["devise.omniauth"]
@user.apply_omniauth(session["devise.omniauth"])
session["devise.omniauth"] = nil
end
end
end
这是我的来自AuthenticationsController的创建方法
def create
omniauth = request.env["omniauth.auth"]
authentication = Authentication.find_by_provider_and_uid(omniauth['provider'],omniauth['uid'])
if authentication
flash[:notice] = "Signed in successfully."
sign_in_and_redirect(:user,authentication.user)
elsif current_user
current_user.authentications.create!(:provider => omniauth['provider'],:uid => omniauth['uid'])
flash[:notice] = "Authentication successful."
redirect_to authentications_url
else
user = User.new
user.apply_omniauth(omniauth)
if user.save
flash[:notice] = "Signed in successfully."
sign_in_and_redirect(:user,user)
else
session[:omniauth] = omniauth.except('extra')
redirect_to new_user_registration_url
end
end
end