ACL and User grouping


Am new to rails and somewhat to ruby. Am building an enterprise class application where I need to group the users, and also define read-only, read-write, etc access permissions to various.

  1. How do you go about it? Are there any tutorials that illustrate / demonstrate these things in RoR?

  2. What ruby gems are used in the process?

thanks so much!

For authorization I had use cancan before

There is also a railcast about this.

Hope it helps.