ruby on rails 3 - Log In - if Admin direct to Admin Index 1st -

i have 'user' log-ins set , working. change when admin or moderator logs in - directed /admin/index page 1st can preview new posts?

would add 'home' link 'users' sit neatly beside 'sign in' , 'sign up' links, not sure how in code block?

any code solutions appreciated...

views/layouts/application.html.erb  <div id="user_nav">     <% if user_signed_in? %>         signed in <%= current_user.email %>. not you?         <%= link_to "sign out", destroy_user_session_path %>     <% else %>         <%= link_to "sign up", new_user_registration_path %> or         <%= link_to "sign in", new_user_session_path %>     <% end %> </div> 

you can add home link before or after if/else/end block:

<div id="user_nav">     <%= link_to "home", root_path %>     <% if user_signed_in? %>         signed in <%= current_user.email %>. not you?         <%= link_to "sign out", destroy_user_session_path %>     <% else %>         <%= link_to "sign up", new_user_registration_path %> or         <%= link_to "sign in", new_user_session_path %>     <% end %> </div> 

or

<div id="user_nav">     <% if user_signed_in? %>         signed in <%= current_user.email %>. not you?         <%= link_to "sign out", destroy_user_session_path %>     <% else %>         <%= link_to "sign up", new_user_registration_path %> or         <%= link_to "sign in", new_user_session_path %>     <% end %>     <%= link_to "home", root_path %> </div> 

as directing admin or moderator different page on signup, detect user's role in controller handles new_user_session_path , redirect_to /admin/index if type of user.