我将为我的 rails 应用程序实现 facebook 和 vkontakte 登录（注册），并且使用 facebook 一切正常（登录和重新登录都可以），按照手册 here完成
但是由于 vkontakte 出了点问题，我仍然会得到“空”页面
这是我的代码：
class Users::OmniauthCallbacksController < Devise::OmniauthCallbacksController
def facebook
# You need to implement the method below in your model (e.g. app/models/user.rb)
@user = User.find_for_facebook_oauth(request.env["omniauth.auth"], current_user)
if @user.persisted?
flash[:notice] = I18n.t "devise.omniauth_callbacks.success", :kind => "Facebook"
sign_in_and_redirect @user, :event => :authentication
else
session["devise.facebook_data"] = request.env["omniauth.auth"]
redirect_to new_user_registration_url
end
end
def vkontakte
@user = User.find_for_vkontakte_oauth(request.env["omniauth.auth"], current_user)
if @user.persisted?
flash[:notice] = I18n.t "devise.omniauth_callbacks.success", :kind => "Vkontakte"
sign_in_and_redirect @user, :event => :authentication
else
session["devise.vkontakte_data"] = request.env["omniauth.auth"]
redirect_to new_user_registration_url
end
end
end
和型号：
class User < ActiveRecord::Base
# Include default devise modules. Others available are:
devise :database_authenticatable, :registerable,
:recoverable, :rememberable, :trackable, :validatable,
:token_authenticatable, :lockable, :timeoutable, :omniauthable #:confirmable,
# Setup accessible (or protected) attributes for your model
attr_accessible :email, :password, :password_confirmation, :remember_me, :provider, :uid, :name
def self.find_for_facebook_oauth(auth, signed_in_resource=nil)
user = User.where(:provider => auth.provider, :uid => auth.uid).first
unless user
user = User.create(name:auth.extra.raw_info.name,
provider:auth.provider,
uid:auth.uid,
email:auth.info.email,
password:Devise.friendly_token[0,20]
)
end
user
end
def self.new_with_session(params, session)
super.tap do |user|
if data = session["devise.facebook_data"] && session["devise.facebook_data"]["extra"]["raw_info"]
user.email = data["email"] if user.email.blank?
end
if data = session["devise.vkontakte_data"] && session["devise.vkontakte_data"]["extra"]["raw_info"]
user.email = data["email"] if user.email.blank?
end
end
end
def self.find_for_vkontakte_oauth(auth, signed_in_resource=nil)
user = User.where(:provider => auth.provider, :uid => auth.uid).first
unless user
user = User.create(name:auth.info.name,
provider:auth.provider,
uid:auth.uid,
email:auth.extra.raw_info.domain+'@vk.com',
password:Devise.friendly_token[0,20]
)
end
user
end
怎么了？