Cannot instantiate an subclass

[sergio101]

I have my classes all set up, but i cannot instantiate a subclass. Here is what i am getting:

[1] pry(main)> AssemblyTypeItem.create :name => 'this is it'

NoMethodError: undefined method update' for #<ActiveModel::MassAssignmentSecurity::WhiteList: {}> from /Users/xxx/.rvm/gems/ruby-1.9.3-p448/gems/acts_as_relation-0.1.2/lib/active_record/acts_as_relation.rb:106:inincluded'

anyone have any ideas? thanks in advance..

here is what everything looks like:

environment
rails (3.0.20)
acts_as_relation (0.1.2)
ruby 1.9.3p448 (2013-06-27 revision 41675) [x86_64-darwin12.5.0]

classes
class Item < ActiveRecord::Base                                                                                                                                                                                                             
   acts_as_superclass
   attr_accessible :type, :name, :key
end

class AssemblyTypeItem < ActiveRecord::Base
   acts_as :item
   attr_accessible :comment
end

schema
create_table "assembly_type_items", :force => true do |t|
     t.string   "comment"
     t.datetime "created_at"
     t.datetime "updated_at"
end

create_table "items", :force => true do |t|                                                                                                                                                                                             
     t.integer  "as_item_id"
     t.string   "as_item_type"
     t.string   "name"
     t.string   "key"
     t.string   "description"
     t.datetime "created_at"
     t.datetime "updated_at"
 end

[edelpino]

class CreateItems < ActiveRecord::Migration
  def self.up
    create_table :items, :as_relation_superclass => true do |t|
      t.string :name
      t.string :key
      t.string :description

      t.timestamps
    end
  end
end

[wtian]

Is this resolved at last? I seem to have the same issue with Rails 3.0.20 and acts_as_relation 0.1.2

[hzamani]

we currently do not support rails 3, patches are welcome