dm-children-destroy.rb

#I am not sure if this is the feature(it is designed to do so), 
# or I'm doing it wrong. Here is the situation I have:
# as of DM version: 0.9.9

class Order
   before :destroy, :destroy_items
   ....
   has n, items ...
  
   def destroy_items
      # NOT working
      # this by pass the item's before destroy hook
      # items.destroy!

      # this part is working, the :check_xxx is called
      items.each |item| do
         ...
         item.destroy
       end
   end
end

class OrderLineItem
  ...
  before :destroy, :check_xxx
  belongs_to :order

  def check_xxx
     raise "the_error_message" if xxxxx
  end
end