Activeadmin Poro Decorator

Alternative for draper, if you need decorators at ActiveAdmin (and Rails). Active Admin uses the Draper gem for decorators, but sometimes you don't need that. For reasons you could read this article: http://thepugautomatic.com/2014/03/draper.

See discussion of PORO with Active Admin authors here.

Installation

Add this line to your application's Gemfile:

gem 'activeadmin-poro-decorator'

And then execute:

$ bundle

Or install it yourself as:

$ gem install activeadmin-poro-decorator

Then run rake-task to copy config file:

$ rake config:copy

Finally, rename activeadmin-poro-decorator.yml.sample to activeadmin-poro-decorator.yml:

$ mv config/activeadmin-poro-decorator.yml.example config/activeadmin-poro-decorator.yml

Usage

# app/admin/post.rb
ActiveAdmin.register Post do
  decorate_with PostDecorator

  permit_params :title

  index do
    column :id
    column :title
    column :hello       #delegated
    column :link_title  #delegated
  end
end

# app/presenters/post_decorator.rb
class PostDecorator < DelegateClass(Post)
  include ActiveadminPoroDecorator

  class << self
    delegate :all, :arel_table, :find_by_sql, :columns, :connection,\
             :unscoped, :table_name, :primary_key, to: Post

    def model_name
      ActiveModel::Name.new Post
    end
  end

  def hello
    "Hello, #{title}"
  end

  def link_title
    helpers.link_to(id, url_helpers.admin_post_path(self))
  end
end

For more examples have a look to sample app

Credits

Activeadmin-poro-decorator is created with support of Legelisten.no

Contributing

1. Fork it ( https://github.com/[my-github-username]/activeadmin-poro-decorator/fork )
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 a new Pull Request