Question

我用omniauth实现了Facebook Button，它有效。我找不到实施Google Button的教程。你可以指导我或分享一些步骤来整合它。非常感谢你。

Answer 1

Here你可以找到一个教程：

<强>的Gemfile：

gem "omniauth-google-oauth2", "~> 0.2.1"

<强>配置/初始化/ omniauth.rb：

OmniAuth.config.logger = Rails.logger

Rails.application.config.middleware.use OmniAuth::Builder do
  provider :google_oauth2, 'my Google client id', 'my Google client secret', {client_options: {ssl: {ca_file:        Rails.root.join("cacert.pem").to_s}}}
end

终端命令：

rails g model user provider uid name oauth_token oauth_expires_at:datetime
rake db:migrate

终端命令：

rails g controller home show
rails g controller Sessions create destroy

<强>配置/ routes.rb中：

GoogleAuthExample::Application.routes.draw do
  get 'auth/:provider/callback', to: 'sessions#create'
  get 'auth/failure', to: redirect('/')
  get 'signout', to: 'sessions#destroy', as: 'signout'

  resources :sessions, only: [:create, :destroy]
  resource :home, only: [:show]

  root to: "home#show"
end

应用/模型/ user.rb：

class User < ActiveRecord::Base def self.from_omniauth(auth) where(auth.slice(:provider, :uid)).first_or_initialize.tap do |user| user.provider = auth.provider user.uid = auth.uid user.name = auth.info.name user.oauth_token = auth.credentials.token user.oauth_expires_at = Time.at(auth.credentials.expires_at) user.save! end end end

应用/控制器/ application_controller.rb：

class ApplicationController < ActionController::Base protect_from_forgery with: :exception helper_method :current_user def current_user @current_user ||= User.find(session[:user_id]) if session[:user_id] end end

应用/控制器/ sessions_controller.rb：

class SessionsController < ApplicationController def create user = User.from_omniauth(env["omniauth.auth"]) session[:user_id] = user.id redirect_to root_path end def destroy session[:user_id] = nil redirect_to root_path end end

应用/视图/布局/ application.html.erb：

<!DOCTYPE html> <html> <head> <title>Google Auth Example App</title> <%= stylesheet_link_tag "application", media: "all", "data-turbolinks-track" => true %> <%= javascript_include_tag "application", "data-turbolinks-track" => true %> <%= csrf_meta_tags %> </head> <body> <div> <% if current_user %> Signed in as <strong><%= current_user.name %></strong>! <%= link_to "Sign out", signout_path, id: "sign_out" %> <% else %> <%= link_to "Sign in with Google", "/auth/google_oauth2", id: "sign_in" %> <% end %> </div> <div> <%= yield %> </div> </body> </html>

实现Google Button订阅rails的步骤是什么？

1 个答案: