How can I get all field names of the Mongoid Document?

Question

I\'m building backend system, as written in Iain Hecker\'s tutorial: http://iain.nl/backends-in-rails-3-1 and I try to adapt it to MongoDB with Mongoid.

So when I need t

Answer 1

You're on the right track with attribute_names. I think you just need to make sure you're including your module in the proper place. For instance, if you had the same module:

module Backend::ResourceHelper
  def attributes
    resource_class.attribute_names - %w(id created_at updated_at)
  end
end

Your class should look like so:

class User
  include Mongoid::Document
  extend Backend::ResourceHelper

  devise_for :users

  field :name
  field :address
end

Then calling User.attributes should return ["name", "address"]