Q:

Ruby/Rails - Remove ActiveAdmin from my application

I had a good time playing with Active Admin the administrative framework within my application.
http://activeadmin.info/
When I installed it I ran 
rails g active_admin:install
rake db:migrate
rails g active_admin:resource product

and it generated alot of migrations and code within my application.
My question if I would like to go back and have everything that active_admin put into my application taken out, how would i do so? 
Is there one 'rails active_admin:uninstall' command to get rid of everything or do I have to manually create migrations to delete all the tables and search through my code to see what it added?

A:

If you run the following code it should destroy active admin:
rails destroy active_admin:install
rails destroy active_admin:resource product

A:

Run this in terminal
rails destroy active_admin:install

Remove gem 'activeadmin' from your gemfile.
Delete the asset files from js and css folders if any remain
Delete any of these lines in Routes.rb
  devise_for :admin_users, ActiveAdmin::Devise.config
  ActiveAdmin.routes(self)
  ActiveAdmin.routes(self)

Then create a new migration with:
  drop_table :active_admin_comments

You may also need:
  drop_table :admin_notes

Or rollback the migrations by finding the relevant files MoveAdminNotesToComments and CreateAdminNotes in your db/migrate folder
rake db:migrate:down VERSION=the_version_number
rake db:migrate:down VERSION=the_version_number

