路由Codeigniter - 每个用户的唯一URL

I have a web application that I made in codeigniter. This system has multiple users. I wanted to give each user their unique URL so for example.

www.mysite.com/user1

www.mysite.com/user2

If the user visits the url below;

www.mysite.com/user2/admim/addArticle

admin/addArticle function should implement and ignore the user2 in the url. I looked into routing but I was not successful at solving this problem.

Is this possible?

What I tried so far:

I added following in routes.php file $route['(:any)'] = "home/index";

above did not work so I tried following guide at http://ellislab.com/forums/viewthread/217216/ which did not work either:

try:

$route['user(\d+)/admim/addArticle'] = "controller/action";

you can see some examples here routing