code: def set_batch(self, data):
      
      
  
      # fetch existing documents to get current revisions
      rows = self.bucket.view("_all_docs", keys=data.keys(), include_docs=True)
      existing = {}
      for row in rows:
        key = row.id
        if key and not data[key].has_key("_rev"):
          data[key]["_rev"] = row.doc["_rev"]
  
      for id,item in data.items():
        data[id]["_id"] = id
  
      revs = {}
      for success, docid, rev_or_exc in self.bucket.update(data.values()):
        if not success and self.logger:
          self.logger.error("Document update conflict (batch) '%s', %s" % (docid, rev_or_exc))
        elif success:
          revs[docid] = rev_or_exc
  
      return revs
docs: Store multiple documents
      
      Args
  
      data <dict> data to store, use document ids as keys
  
      Returns
  
      revs <dict> dictionary of new revisions indexed by document ids