+
+def persession(data = None):
+ def dec(callable):
+ def wrapper(req):
+ sess = session.get(req)
+ if callable not in sess:
+ if data is None:
+ sess[callable] = callable()
+ else:
+ if data not in sess:
+ sess[data] = data()
+ sess[callable] = callable(data)
+ return sess[callable].handle(req)
+ return wrapper
+ return dec
+
+class sessiondata(object):
+ @classmethod
+ def get(cls, req):
+ sess = cls.sessdb().get(req)
+ with sess.lock:
+ try:
+ return sess[cls]
+ except KeyError:
+ ret = cls(req)
+ sess[cls] = ret
+ return ret
+
+ @classmethod
+ def sessdb(cls):
+ return session.default
+
+class autodirty(sessiondata):
+ @classmethod
+ def get(cls, req):
+ ret = super(autodirty, cls).get(req)
+ if "_is_dirty" not in ret.__dict__:
+ ret.__dict__["_is_dirty"] = False
+
+ def sessfrozen(self):
+ self.__dict__["_is_dirty"] = False
+
+ def sessdirty(self):
+ return self._is_dirty
+
+ def __setattr__(self, name, value):
+ super(autodirty, self).__setattr__(name, value)
+ if "_is_dirty" in self.__dict__:
+ self.__dict__["_is_dirty"] = True
+
+ def __delattr__(self, name):
+ super(autodirty, self).__delattr__(name, value)
+ if "_is_dirty" in self.__dict__:
+ self.__dict__["_is_dirty"] = True