Able to have CANCAN's new record attributes initialization feature when using inherit_resources

inherited_resource.rb

CanCan::InheritedResource.class_eval do
  # Copied from CACAN added attributes initialization for new_actions
  def load_resource_instance
    if parent?
      @controller.send :association_chain
      @controller.instance_variable_get("@#{instance_name}")
    elsif new_actions.include? @params[:action].to_sym
      # [[[ - initialize new object attributes according capability.
      resource = @controller.send :build_resource
      initial_attributes.each do |attr_name, value|
        resource.send("#{attr_name}=", value)
      end
      @controller.send :resource
      # ]]]
    else
      @controller.send :resource
    end
  end
end