用户注册、权限管理、第三方登陆

Keeping it Simple: Migrating to Pundit from CanCan 中文版
https://ruby-china.org/topics/18547
https://www.youtube.com/results?search_query=4-omniauth-2-identity&spfreload=1
https://github.com/intridea/omniauth-identity/blob/master/lib/omniauth/strategies/identity.rb
Role-based Authorization with Pundit
https://ruby-china.org/topics/26642
http://api.rubyonrails.org/classes/ActiveModel/SecurePassword/ClassMethods.html
Omniauth，微博与 CookieOverflow
https://ruby-china.org/topics/7559
我们用的omniauth, 然后加omniauth-identity实现了基于邮箱的注册登陆。
就是 https://github.com/kaichen/omniauth-qq-connect
失败了就去看看相关的文档：omniauth 的，QQ 开放平台的文档，还有 omniauth-qq-connect 的文档
微信开放平台 Omniauth 探索
https://ruby-china.org/topics/25410

gem"omniauth-qzone", :git =>"git://github.com/tomorrownull/omniauth-qzone.git"
这个就是QQ登陆
gem 'omniauth-weibo-oauth2' gem 'omniauth-qq-connect'
https://github.com/beenhero/omniauth-weibo-oauth2https://github.com/ballantyne/omniauth-weibo
我用过这俩, 都可以的

OmniAuth - 實作多方認證的最佳實踐 (4)