class ActiveFedora::Associations::Builder::HasAndBelongsToMany

def define_destroy_hook
  # Don't use a before_destroy callback since users' before_destroy
  # callbacks will be executed after the association is wiped out.
  # TODO Update to destroy_associations
  name = self.name
  model.send(:include, Module.new {
    class_eval <<-RUBY, __FILE__, __LINE__ + 1
      def destroy          # def destroy
        #{name}.clear      #   posts.clear
        super              #   super
      end                  # end
    RUBY
  })
end