With activeadmin-gallery, you are able to DRY up your models and freely associate images and galleries to your models. This version is compatible with ActiveAdmin 1.0.x, for the old 0.6.x release see 0-6-stable branch.

Add activeadmin-gallery to your Gemfile:

   gem 'activeadmin-gallery', github: 'stefanoverna/activeadmin-gallery'

Run the generator that will create the images table, and migrate.

> rake activeadmin_gallery:install:migrations
> rake db:migrate

Suppose you want a Page model with an image gallery. In app/models/page.rb:

class Page < ActiveRecord::Base
  has_many_images :album_images
end

No migrations, no models. That's all you need.

In your ActiveAdmin config file:

ActiveAdmin.register Page do

  form do |f|
    # ...
    f.inputs :gallery do
      f.has_many_images :album_images
    end
    # ...
  end

end

Suppose you want a Page model with a single image. Edit app/models/page.rb

class Page < ActiveRecord::Base
  has_image :featured_image
end

No migrations, no models. That's all you need. In your ActiveAdmin config file:

ActiveAdmin.register Page do

  form do |f|
    # ...
    f.inputs :image do
      f.has_image :featured_image
    end
    # ...
  end

end

Copyright (c) 2012 Stefano Verna, Cantiere Creativo See the file LICENSE.txt for details.