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Active Admin
Active Admin allows you to quickly build an admin interface with just a few commands. Not only does it look great, but it is very customizable as shown in this episode.
(12 minutes)
Search, Sort, Paginate with AJAX
Many administration pages have search, sorting, and pagination on the index page. See how to add all of this including AJAX.
(13 minutes)
Declarative Authorization
Declarative authorization provides an advanced and powerful solution for role based authorization.
(15 minutes)
Dynamic Page Caching
Use JavaScript to allow dynamic content in a page cache. In this episode I show you how to insert the user-specific content into a page through JavaScript.
(11 minutes)
restful_authentication
Need multiple user authentication? If so, the restful_authentication plugin is a great way to go. It will generate some basic authentication code for you which is good starting point to your authentication system. Watch this episode for details.
(9 minutes)
HTTP Basic Authentication
Rails 2.0 offers an extremely easy way to do HTTP basic authentication. See how in this episode.
(4 minutes)
OpenID Authentication
Ever wonder how to implement OpenID authentication in your Rails app? This episode will show you how to add it to a site with an existing authentication system.
(11 minutes)