279         return self.count > 0

   279         return self.count > 0

   280 

   280 

   281     def addpending(self, category, callback):

   281     def addpending(self, category, callback):

   282         """add a callback to be called when the transaction is pending

   282         """add a callback to be called when the transaction is pending

   283 

   283 

   284         Category is a unique identifier to allow overwriting an old callback

   286         Category is a unique identifier to allow overwriting an old callback

   285         with a newer callback.

   287         with a newer callback.

   286         """

   288         """

   287         self._pendingcallback[category] = callback

   289         self._pendingcallback[category] = callback

   288 

   290 

   292 

   294 

   293         This is used to allow hooks to view a transaction before commit'''

   295         This is used to allow hooks to view a transaction before commit'''

   294         categories = sorted(self._pendingcallback)

   296         categories = sorted(self._pendingcallback)

   295         for cat in categories:

   297         for cat in categories:

   296             # remove callback since the data will have been flushed

   298             # remove callback since the data will have been flushed

   298             self._anypending = self._anypending or any

   300             self._anypending = self._anypending or any

   299         return self._anypending

   301         return self._anypending

   300 

   302 

   301     @active

   303     @active

   302     def addfinalize(self, category, callback):

   304     def addfinalize(self, category, callback):