old_contents: # -*- coding: utf-8 -*-
  
  """
  byceps.blueprints.shop_admin.service
  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  
  :Copyright: 2006-2014 Jochen Kupperschmidt
  """
  
  from collections import Counter
  
  
  def count_ordered_articles(article):
      """Count how often the article has been ordered, grouped by the
      order's payment state.
      """
      counter = Counter()
      for order_item in article.order_items:
          counter[order_item.order.payment_state] += order_item.quantity
      return dict(counter)
  
new_contents: # -*- coding: utf-8 -*-
  
  """
  byceps.blueprints.shop_admin.service
  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  
  :Copyright: 2006-2014 Jochen Kupperschmidt
  """
  
  from collections import Counter
  
  from ..shop.models import PaymentState
  
  
  def count_ordered_articles(article):
      """Count how often the article has been ordered, grouped by the
      order's payment state.
      """
      counter = Counter({state: 0 for state in PaymentState})
  
      for order_item in article.order_items:
          counter[order_item.order.payment_state] += order_item.quantity
  
      return dict(counter)
  
subject: Make sure every payment state is