How to create ActiveRecord tableless Model in Rails 3

Question

I am trying to create a Active Record tableless Model. My user.rb looks like this

class User < ActiveRecord::Base

  class_inheritable_accessor :columns

         


        

Answer 1

Just for anyone still struggling with this. For rails 2.x.x

class TestImp < ActiveRecord::Base

  def self.columns
    @columns ||= []
  end
end

For rails 3.1.x you can either include ActiveModel (as explained by @ducktyped) without inheriting from ActiveRecord or If you do need to inherit from ActiveRecord::Base due to some reason then the above with one other addition:

class TestImp < ActiveRecord::Base

  def attributes_from_column_definition
    []
  end

  def self.columns
    @columns ||= []
  end
end