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# Copyright 2013 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
from appengine_wrappers import db
import cPickle
# A collection of the data store models used throughout the server.
# These values are global within datastore.
class PersistentObjectStoreItem(db.Model):
pickled_value = db.BlobProperty()
@classmethod
def CreateKey(cls, namespace, key):
return db.Key.from_path(cls.__name__, '%s/%s' % (namespace, key))
@classmethod
def CreateItem(cls, namespace, key, value):
return PersistentObjectStoreItem(key=cls.CreateKey(namespace, key),
pickled_value=cPickle.dumps(value))
def GetValue(self):
return cPickle.loads(self.pickled_value)
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