Lazy load your attributes with ActiveRecord

lazy_load_attributes.rb

module LazyLoadingAttributes
  def lazy_attribute(attribute_name)
    send attribute_name
  rescue ActiveRecord::MissingAttributeError
    if id
      reload
      send attribute_name
    else
      raise "Cannot lazy load attributes without and ID (can't find the original record)"
    end
  end
end

ActiveRecord::Base.send :include, LazyLoadingAttributes