Now visit http://localhost:3000/admin and you will be prompted for your email address, from which it will automatically create the first admin user (pretty slick). The default UI looks like this:

I ran into just one glitch where Rails reported "A copy of ApplicationController has been removed from the module tree but is still active!" but it was easily fixed. The error didn't happen in my simple project, but did in my real app. Francesc Esplugas has looked into it and so far can't reproduce it.

admin_data

I really liked admin_data. The simplicity of the install was breath-taking:

ruby script/plugin install git://github.com/neerajdotname/admin_data.git
sudo gem install will_paginate
./script/server


that's it. Now visit http://localhost:3000/admin_data and you'll see the following interface:

I didn't try it, but I really like the admin_data approach to integrating with the application's authentication: Add the following lines of code in an initializer at ~/config/initializers/admin_data.rb


# authorization check to see if the data should be shown to the user
ADMIN_DATA_VIEW_AUTHORIZATION = Proc.new { |controller|
   controller.send("admin_logged_in?") }
# authorization check to see if the user should be allowed to update the data
ADMIN_DATA_UPDATE_AUTHORIZATION = Proc.new { |controller| return false }


streamlined

Streamlined is nice, but not as pretty as ActiveScaffold. Not compatible with Rails 2.3. This and active_scaffold seem to be a little older than typus and admin_data and require you to modify your code similarly. I thought it nice that it provided its own admin layout. In my simple test I applied the series of steps and nested route as with active_scaffold.

class MyNiftyController < ApplicationController
  layout 'streamlined'
  acts_as_streamlined

...[anything else you want to do]
end


active_scaffold

See my previous post for details. This seems to be the grand-daddy of this genre of plugins and has a very active google group. I liked this plugin when I first tried it, but it hung when I applied it to my real app. Also, @jamieflournoy notes that he didn't like the UI for editing related models as much as he did Streamlined.