Ruby on rails omniauth-twitter和devise

Question

我尝试实现oauth-twitter gem来允许我的用户在twitter上注册/登录，问题是当用户在twitter上接受我的应用程序后被重定向时，它会将用户重定向到注册页面。

下面是我的配置：

app/controllers/users/omniauth_callbacks_controller.rb

class Users::OmniauthCallbacksController < Devise::OmniauthCallbacksController
     def twitter
    # 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 => "Twitter") if is_navigational_format?
    else
      session["devise.twitter.data"] = request.env["omniauth.auth"].except("extra")
      redirect_to new_user_registration_url
    end   end

end

然后是我的应用程序/model/users.rb

class User < ActiveRecord::Base
  # Include default devise modules. Others available are:
  # :confirmable, :lockable, :timeoutable and :omniauthable
  devise :database_authenticatable, :registerable,
         :recoverable, :rememberable, :trackable, :validatable

  devise :omniauthable, :omniauth_providers => [:twitter]

def self.from_omniauth(auth)
  where(auth.slice(:provider, :uid)).first_or_create do |user|
    user.email = auth.info.email
    user.password = Devise.friendly_token[0,20]
    user.name = auth.info.name   # assuming the user model has a name
  end
end


def self.new_with_session(params, session)
    super.tap do |user|
      if data = session["devise.twitter_data"] && session["devise.twitter_data"]["extra"]["raw_info"]
        user.email = data["email"] if user.email.blank?
      end
    end
  end


end

我的Gemfile

source 'https://rubygems.org'
ruby '2.1.1'

gem 'rails', '4.0.0'
gem "sass-rails", "~> 4.0.0"
gem 'uglifier'
gem 'coffee-rails'
gem 'jquery-rails'
gem 'jbuilder', '~> 1.2'
gem 'bootstrap-sass'
gem 'devise'
gem "font-awesome-rails", "~> 4.0.1.0"
gem 'masonry-rails', '~> 0.2.0'
gem "zeroclipboard-rails", "~> 0.0.10"
gem "will_paginate", '~> 3.0'
gem 'intercom-rails', '~> 0.2.24'
gem 'magnific-popup-rails'
gem "rake"
gem 'omniauth-twitter'





group :development, :test do
    gem 'sqlite3'
end

group :production do
    gem 'pg'
    gem 'rails_12factor'
end

group :doc do
  # bundle exec rake doc:rails generates the API under doc/api.
  gem 'sdoc', require: false
end

# Use ActiveModel has_secure_password
# gem 'bcrypt-ruby', '~> 3.0.0'

# Use unicorn as the app server
# gem 'unicorn'

# Use Capistrano for deployment
# gem 'capistrano', group: :development

# Use debugger
# gem 'debugger', group: [:development, :test]

在config/initializers/devise.rb中

我添加了：

require 'omniauth-twitter'
  config.omniauth :twitter, "APP_ID", "APP_KEY", :strategy_class => OmniAuth::Strategies::Twitter

但是当我的用户通过链接注册时：

 <%= link_to "Sign in with twitter", user_omniauth_authorize_path(:twitter) %>

在twitter上接受我的应用，他们被重定向到注册页面，它没有填充任何内容，我知道无法通过twitter检索电子邮件地址，但名称呢？它应该填写名称吗？

感谢您指出错误所在

Answer 1

请注意，现在可以从Twitter检索电子邮件。为此，你必须进入你的推特开发帐户(https://developer.twitter.com/en/apps)，选择你的应用程序，然后进入“权限”设置。在这里，你可以点击“编辑”，然后选中“从用户那里请求电子邮件地址”的复选框。

在那之后，你在Twitter上的无所不在应该会正常工作。话虽如此，您可能希望通知用户他们遇到的错误。因此，我将在您的twitter方法中添加一个警告通知，以防身份验证失败：

  def twitter
    # 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 => "Twitter") if is_navigational_format?
    else
      session["devise.twitter.data"] = request.env["omniauth.auth"].except("extra")
      redirect_to new_user_registration_url, alert: @user.errors.full_messages.join("\n")
    end   
  end

Answer 2

在你的用户模型的new_with_session(params，session)方法中，你没有从twitter返回的数据中检索数据，在那里做一些赋值。