Help with Permits and roles in Codeigniter 2

I'm looking for a way to implement permissions on Codeigniter 2 type users: Admin and User_basic, need an example or a library you can do. ADMIN: wide permissions. User_basic: only list. I have a table with users. 1 table permissions. 1 Table Roles.

All are related.

NOTE: I have already implemented the login.

开发者_开发百科Thanks for the help.

Here's the class I usually use

It's easy to implement & you can see the example in the same link.