Ckeditor integration

To use CKEDitor in Active Admin, you need to do four things:

1. Add Ckeditor to your Gemfile

gem 'ckeditor'

for rails 3.2 use this

gem "ckeditor", "3.7.0.rc3"

2. Add the ckeditor stylesheet to active admin (in config/initializers/active_admin.rb)

config.register_javascript 'ckeditor/ckeditor.js'

3. Change your form to a partial

ActiveAdmin.register User do
  form :partial => "user_form"

4. Add the ckeditor class to your input field in the partial (in _user_form.html.haml) (HAML style code)

= semantic_form_for [:admin, @user] do |f|
  = f.input :description, :input_html => {:class => :ckeditor}

Presto! You're done :-)