Omniauth Facebook重定向到注册屏幕而不是创建用户

按照gem的教程，我似乎仍然遇到了一些问题。 我首先点击链接通过Facebook注册并重定向到Facebook。 我点击没关系，然后回到我的注册页面。 没有创建新用户。 如果我再次尝试单击注册链接，则只需在地址栏中刷新页面http://localhost:3000/register#_=_ 。 我究竟做错了什么？

用户模型

 devise :database_authenticatable, :registerable, :recoverable, :rememberable, :trackable, :validatable, :omniauthable, omniauth_providers: [:facebook] def self.from_omniauth(auth) where(provider: auth.provider, uid: auth.uid).first_or_create do |user| user.email = auth.info.email user.password = Devise.friendly_token[0,20] user.first_name = auth.info.first_name user.last_name = auth.info.last_name end end 

回调控制器

 class Users::OmniauthCallbacksController  :authentication #this will throw if @user is not activated set_flash_message(:notice, :success, :kind => "Facebook") if is_navigational_format? else session["devise.facebook_data"] = request.env["omniauth.auth"] redirect_to new_user_registration_url end end end 

控制台代码

 Started GET "/auth/facebook/callback?code=AQCh2rckn0dMOKNggTQJEbx_LTMGjNrDdumTu_Ay9Cwr_87A2pro_gOgFtSa866DouLuj4kMLVMMPfR3amp_X6rNSlAwOQ51RXK053vxhtEyJNY8StcqiOVZ6YqpGmfg8Zsz8RIXQr2xRclPmW9j9o8fqg83CoFiH1j-e_YOOuyCaX6xkoVN1eC3kjWSezg_WFm3p6aXu_XYxw1-Jf2j3Ijqt4kR4ySLHfmauj1z9UUcy5HANMIjaRx84NiZHNdJq6fzuAT37y9cXvP5HawonBBA0bG7ejAk5AATBYJj-kTXdCR9673cQ55O4GbAw_LCzzy7_YgHkFR9S038tP68HnXm&state=d013067bc67bd4bff43b6ac77bea69f5b113858cb234452a" for ::1 at 2015-07-12 19:28:55 -0400 I, [2015-07-12T19:28:55.026584 #7266] INFO -- omniauth: (facebook) Callback phase initiated. Processing by Users::OmniauthCallbacksController#facebook as HTML Parameters: {"code"=>"AQCh2rckn0dMOKNggTQJEbx_LTMGjNrDdumTu_Ay9Cwr_87A2pro_gOgFtSa866DouLuj4kMLVMMPfR3amp_X6rNSlAwOQ51RXK053vxhtEyJNY8StcqiOVZ6YqpGmfg8Zsz8RIXQr2xRclPmW9j9o8fqg83CoFiH1j-e_YOOuyCaX6xkoVN1eC3kjWSezg_WFm3p6aXu_XYxw1-Jf2j3Ijqt4kR4ySLHfmauj1z9UUcy5HANMIjaRx84NiZHNdJq6fzuAT37y9cXvP5HawonBBA0bG7ejAk5AATBYJj-kTXdCR9673cQ55O4GbAw_LCzzy7_YgHkFR9S038tP68HnXm", "state"=>"d013067bc67bd4bff43b6ac77bea69f5b113858cb234452a"} User Load (0.1ms) SELECT "users".* FROM "users" WHERE "users"."provider" = ? AND "users"."uid" = ? ORDER BY "users"."id" ASC LIMIT 1 [["provider", "facebook"], ["uid", "836028396465704"]] (0.1ms) begin transaction (0.0ms) rollback transaction Redirected to http://localhost:3000/register Completed 302 Found in 59ms (ActiveRecord: 0.2ms) 

Answer 1

将此行添加到config / initializers / devise.rb

 config.omniauth :facebook, "app id", "app secret", scope: 'email', info_fields: 'email' 

Facebook API的新版本发生了变化，即Graph API v2.4简介

更少的默认字段可提高性能：为了帮助提高移动网络连接的性能，我们减少了默认情况下API返回的字段数。 您现在应该使用？fields = field1，field2语法来声明您希望API返回的所有字段。

Answer 2

如果您正在关注设计的维基页面，则身份validation失败。 在tge控制器中，如果validation失败，则会重定向到注册路径。 就像mohamed所说，但你现在应该将first_name和last_name添加到你的info_fields所以在config / initializers / devise.rb中写下这个config.omniauth：facebook，“app id”，“app secret”，范围：’email’，info_fields： “电子邮件，名字，姓氏”