If you have used the rails_admin gem, you would have noticed that its tightly coupled with Devise. What happens if devise is not the pick and the application is already integrated with authlogic. Lets see.
After installing the rails_admin gem, create a rails_admin.rb file in config/initializers. Paste the following code
RailsAdmin.config do |config| config.authorize_with do redirect_to root_path, :alert => "You are not authorized!" unless current_user.admin? end end RailsAdmin.config do |config| config.authenticate_with do unless current_user redirect_to login_url end end end
The authentication block checks if the user is currently logged in and the authorization block checks if the logged in user is an admin or not.
Also add the rails admin route in the config/routes.rb file.
mount RailsAdmin::Engine => '/admin', :as => 'rails_admin'
This should enable the admin to run at /admin, now authenticated and authorized using authlogic.