《Ruby on Rails: 使用devise+cancan+rolify建立完整的权限管理系统》

                       http://my.oschina.net/silentboy/blog/204772

《使用Devise＋Rolify + Cancan 控管權限》

                      http://deveede.logdown.com/posts/206943-use-deviserolify-cancan-control-permissions

《Cancan 實作角色權限設計的最佳實踐(1、2、3) 》

                      ref:[http://blog.xdite.net/posts/2012/07/30/cancan-rule-engine-authorization-based-library-1/]

                      ref:[http://blog.xdite.net/posts/2012/07/30/cancan-rule-engine-authorization-based-library-2/]
                     ref:[http://blog.xdite.net/posts/2012/07/30/cancan-rule-engine-authorization-based-library-3/]

《Rails插件：CanCan权限验证插件学习总结》

                     ref:[http://blog.csdn.net/jackal998099/article/details/21519925]

rails权限管理