def txn(): index = random.randint(0, CounterController.NUM_SHARDS - 1) shard_name = name + str(index) counter = GCounter.get_by_key_name(shard_name) if counter is None: counter = GCounter(key_name=shard_name, name=name) counter.count += 1 counter.put()
def get_count(name): """Retrieve the value for a given sharded counter. Parameters: name - The name of the counter """ total = memcache.get(name) if total is None: total = 0 for counter in GCounter.all().filter('name = ', name): total += counter.count memcache.add(name, total, 60) return total