Question

按照宝石的教程完全，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http://localhost:3000/register#_=_中刷新页面。我做错了什么？

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 < Devise::OmniauthCallbacksController
  def facebook
    # You need to implement the method below in your model (e.g. app/models/user.rb)
    @user = User.from_omniauth(request.env["omniauth.auth"])

    if @user.persisted?
      sign_in_and_redirect @user, :event => :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'

新版Facebook API发生了变化， Introducing Graph API v2.4

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维基页面，则身份验证失败。在tge控制器中，如果身份验证失败，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info_fields中所以在config / initializers / devise.rb中写这个 config.omniauth：facebook，＆＃34; app id＆＃34;，＆＃34; app secret＆＃34;，范围：＆＃39; email＆＃39;，info_fields：＆＃39; email，first_name，last_name＆＃39 ;

Omniauth Facebook重定向到注册屏幕而不是创建用户

2 个答案: