docs: def _get_last_entries(db, qty):
      """get all entries and the last qty entries"""
      doc_ids = [post.doc_id for post in db.posts.all()]
      doc_ids = sorted(doc_ids, reverse=True)
      # bug: here we shoud only render doc_ids[:qty]
      # but we can't use mtimes for sorting. We'll need to add ptime for the
      # database (publish time)
      entries = [Entry(os.path.join(CONFIG['content_root'],
                       db.posts.get(doc_id=doc_id)['filename']), doc_id)
                 for doc_id in doc_ids]
      # return _sort_entries(entries)[:qty]
      entries.sort(key=operator.attrgetter('date'), reverse=True)
      return entries[:qty], entries