Acts_as_nested_set ActiveRecord rendered with mx:Tree in Flex.
ActiveRecord: app/models/category.rb
class Category < ActiveRecord::Base
acts_as_nested_set
end
Controller: app/controllers/categories_controller.rb
class CategoriesController < ApplicationController
def index
Category.result_to_attributes_xml(Category.root.full_set)
end
end
Flex Application: ActsAsNestedSet.mxml
<?xml version=“1.0” encoding=“utf-8”?>
Result:
XML generated by Category.result_to_attributes_xml(Category.root.full_set):
I used the http://wiki.rubyonrails.org/rails/pages/BetterNestedSet plugin.
Too cool!
UPDATE: The BetterNestedSet plugin doesn’t work out of the box with Rails 2.0 RC1. Thanks Joel for that info. Read more in the comment of this blog entry.
UPDATE2: Thanks Fabien, BetterNestedSet now works with Rails 2.0!
Daniel Wanja
HTML5, iOS and Ruby On Rails Nouvelles Solutions, Inc.
d@n-so.com
