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.
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
# 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
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
Activeadmin-poro-decorator is created with support of Legelisten.no
- Fork it ( https://github.com/[my-github-username]/activeadmin-poro-decorator/fork )
- Create your feature branch (
git checkout -b my-new-feature
) - Commit your changes (
git commit -am 'Add some feature'
) - Push to the branch (
git push origin my-new-feature
) - Create a new Pull Request