Active Admin Orderable

This gem extends ActiveAdmin so that your index page's table rows can be orderable via a drag-and-drop interface.

Prerequisites

This extension assumes that you're using one of the following on any model you want to be sortable.

ActiveRecord

acts_as_list

class Page < ActiveRecord::Base
  acts_as_list
end

Mongoid

mongoid_orderable

class Page < ActiveRecord::Base
  include Mongoid::Orderable
  orderable
end

Usage

Add it to your Gemfile

gem "activeadmin-orderable"

Include the JavaScript in active_admin.js.coffee

#= require activeadmin-orderable

Include the Stylesheet in active_admin.css.scss

@import "activeadmin-orderable"

Configure your ActiveAdmin Resource

ActiveAdmin.register Page do
  config.sort_order = 'position_asc' # assumes you are using 'position' for your acts_as_list column
  config.paginate   = false # optional; drag-and-drop across pages is not supported

  orderable # creates the controller action which handles the sorting

  index do
    orderable_handle_column # inserts a drag handle
    # use a user-defined URL for ordering
    orderable_handle_column url: :sort_admin_section_path
    # alternative form with lambda
    orderable_handle_column url: -> (resource) { compute_url_from_resource(resource) }
    # other columns...
  end

  show do |c|
    attributes_table do
      row :id
      row :name
    end

    panel 'Contents' do
      table_for c.collection_memberships do
        orderable_handle_column
        column :position
        column :collectable
      end
    end
  end
end

Contributing

1. Fork it
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create new Pull Request