omn​​iauth.auth for Facebook没有返回完整哈希,也无法成功登录Facebook

Question

我正在研究来自http://www.theodinproject.com/ruby-on-rails/final-project的facebook克隆项目.

我被omniauth-facebook部分困住了,我无法成功登录facebook.我认为问题可能是由于request.env ["omniauth.auth"].当我尝试提出request.env ["omniauth.auth"].to_yaml时.我得到以下不完整的哈希.它缺少很多信息,例如first_name,last_name,gender等.

--- !ruby/hash:OmniAuth::AuthHash
provider: facebook
uid: '10206926404981253'
info: !ruby/hash:OmniAuth::AuthHash::InfoHash
  name: Thomas Pan
  image: http://graph.facebook.com/10206926404981253/picture
credentials: !ruby/hash:OmniAuth::AuthHash
  token: <token>
  expires_at: 1442277104
  expires: true
extra: !ruby/hash:OmniAuth::AuthHash
  raw_info: !ruby/hash:OmniAuth::AuthHash
    name: Thomas Pan
    id: <id>

**用<>替换了一些信息以确保安全性.

我也在使用它和设计.

其他所有东西似乎都设置正确,因为我按照这里的说明进行设计和omniauth-facebook.https://github.com/plataformatec/devise/wiki/OmniAuth:-Overview

user.rb

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
    user.gender = auth.extra.raw.gender
  end  
end  

devise.rb

config.omniauth :facebook, ENV['FB_APP_ID'], ENV['FB_APP_SECRET']

的routes.rb

devise_for :users, :controllers => { :registrations => "users/registrations", :omniauth_callbacks => "users/omniauth-callbacks" }

omn​​iauth_callbacks_controller.rb

def facebook
  raise request.env['omniauth.auth'].to_yaml
  end
end

任何帮助将不胜感激!

版本信息:Rails 4.2.1 Ruby 2.0.0

Answer 1

在devise.rb:

config.omniauth :facebook, ENV['FB_APP_ID'], ENV['FB_APP_SECRET'], scope: 'email', info_fields: 'email,name,first_name,last_name,gender'