old_contents: # -*- coding: utf-8 -*-
  
  # Copyright(C) 2010-2012 Jeremy Monnet
  #
  # This file is part of weboob.
  #
  # weboob is free software: you can redistribute it and/or modify
  # it under the terms of the GNU Affero General Public License as published by
  # the Free Software Foundation, either version 3 of the License, or
  # (at your option) any later version.
  #
  # weboob is distributed in the hope that it will be useful,
  # but WITHOUT ANY WARRANTY; without even the implied warranty of
  # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  # GNU Affero General Public License for more details.
  #
  # You should have received a copy of the GNU Affero General Public License
  # along with weboob. If not, see <http://www.gnu.org/licenses/>.
  
  from datetime import datetime, date
  
  from .collection import ICapCollection, CollectionNotFound
  from .base import CapBaseObject
  
  
  __all__ = ['ICapBook', 'Book']
  
  
  class Book(CapBaseObject):
      def __init__(self, id):
          CapBaseObject.__init__(self, id)
          self.add_field('name', basestring)
          self.add_field('author', basestring)
          self.add_field('location', basestring)
          self.add_field('date', (datetime, date)) # which may be the due date
          self.add_field('late', bool)
  
  
  class ICapBook(ICapCollection):
      def iter_resources(self, objs, split_path):
          if Book in objs:
              if len(split_path) > 0:
                  raise CollectionNotFound(split_path)
  
              return self.iter_books()
  
      def iter_books(self, pattern):
          raise NotImplementedError()
  
      def get_book(self, _id):
          raise NotImplementedError()
  
      def get_booked(self, _id):
          raise NotImplementedError()
  
      def get_rented(self, _id):
          raise NotImplementedError()
  
      def search_books(self, _string):
          raise NotImplementedError()
  
new_contents: # -*- coding: utf-8 -*-
  
  # Copyright(C) 2010-2012 Jeremy Monnet
  #
  # This file is part of weboob.
  #
  # weboob is free software: you can redistribute it and/or modify
  # it under the terms of the GNU Affero General Public License as published by
  # the Free Software Foundation, either version 3 of the License, or
  # (at your option) any later version.
  #
  # weboob is distributed in the hope that it will be useful,
  # but WITHOUT ANY WARRANTY; without even the implied warranty of
  # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  # GNU Affero General Public License for more details.
  #
  # You should have received a copy of the GNU Affero General Public License
  # along with weboob. If not, see <http://www.gnu.org/licenses/>.
  
  from datetime import datetime, date
  
  from .collection import ICapCollection, CollectionNotFound
  from .base import CapBaseObject
  
  
  __all__ = ['ICapBook', 'Book']
  
  
  class Book(CapBaseObject):
      def __init__(self, id):
          CapBaseObject.__init__(self, id)
          self.add_field('name', basestring)
          self.add_field('author', basestring)
          self.add_field('location', basestring)
          self.add_field('date', (datetime, date)) # which may be the due date
          self.add_field('late', bool)
  
  
  class ICapBook(ICapCollection):
      def iter_resources(self, objs, split_path):
          if Book in objs:
              self._restrict_level(split_path)
  
              return self.iter_books()
  
      def iter_books(self, pattern):
          raise NotImplementedError()
  
      def get_book(self, _id):
          raise NotImplementedError()
  
      def get_booked(self, _id):
          raise NotImplementedError()
  
      def get_rented(self, _id):
          raise NotImplementedError()
  
      def search_books(self, _string):
          raise NotImplementedError()
  
subject: Use the helper function in the new capability