def undo(self, tid, note=None):
t = TransactionMetaData()
if note is not None:
t.note(note)
oids = self._begin_undos_vote(t, tid)
self._storage.tpc_finish(t)
return oids
def checkUndoInvalidation(self):
oid = self._storage.new_oid()
revid = self._dostore(oid, data=MinPO(23))
revid = self._dostore(oid, revid=revid, data=MinPO(24))
revid = self._dostore(oid, revid=revid, data=MinPO(25))
info = self._storage.undoInfo()
if not info:
# Preserved this comment, but don't understand it:
# "Perhaps we have an old storage implementation that
# does do the negative nonsense."
info = self._storage.undoInfo(0, 20)
tid = info[0]['id']
# Now start an undo transaction
t = TransactionMetaData()
t.note(u'undo1')
oids = self._begin_undos_vote(t, tid)
# Make sure this doesn't load invalid data into the cache
self._storage.load(oid, '')
self._storage.tpc_finish(t)
[uoid] = oids
assert uoid == oid
data, revid = self._storage.load(oid, '')
obj = zodb_unpickle(data)
assert obj == MinPO(24)
def undo(self, tid, note=None):
t = TransactionMetaData()
if note is not None:
t.note(note)
oids = self._begin_undos_vote(t, tid)
self._storage.tpc_finish(t)
return oids
def checkUndoInvalidation(self):
oid = self._storage.new_oid()
revid = self._dostore(oid, data=MinPO(23))
revid = self._dostore(oid, revid=revid, data=MinPO(24))
revid = self._dostore(oid, revid=revid, data=MinPO(25))
info = self._storage.undoInfo()
if not info:
# Preserved this comment, but don't understand it:
# "Perhaps we have an old storage implementation that
# does do the negative nonsense."
info = self._storage.undoInfo(0, 20)
tid = info[0]['id']
# Now start an undo transaction
t = TransactionMetaData()
t.note(u'undo1')
oids = self._begin_undos_vote(t, tid)
# Make sure this doesn't load invalid data into the cache
self._storage.load(oid, '')
self._storage.tpc_finish(t)
[uoid] = oids
assert uoid == oid
data, revid = self._storage.load(oid, '')
obj = zodb_unpickle(data)
assert obj == MinPO(24)
def checkNote(self):
oid = self._storage.new_oid()
t = TransactionMetaData()
self._storage.tpc_begin(t)
t.note(u'this is a test')
self._storage.store(oid, ZERO, zodb_pickle(MinPO(5)), '', t)
self._storage.tpc_vote(t)
self._storage.tpc_finish(t)
def checkNote(self):
oid = self._storage.new_oid()
t = TransactionMetaData()
self._storage.tpc_begin(t)
t.note(u'this is a test')
self._storage.store(oid, ZERO, zodb_pickle(MinPO(5)), '', t)
self._storage.tpc_vote(t)
self._storage.tpc_finish(t)
def _undo(self, tid, expected_oids=None, note=None):
# Undo a tid that affects a single object (oid).
# This is very specialized.
t = TransactionMetaData()
t.note(note or u"undo")
self._storage.tpc_begin(t)
undo_result = self._storage.undo(tid, t)
vote_result = self._storage.tpc_vote(t)
if expected_oids is not None:
oids = set(undo_result[1]) if undo_result else set()
if vote_result:
oids.update(vote_result)
self.assertEqual(oids, set(expected_oids))
return self._storage.tpc_finish(t)
def _undo(self, tid, expected_oids=None, note=None):
# Undo a tid that affects a single object (oid).
# This is very specialized.
t = TransactionMetaData()
t.note(note or u"undo")
self._storage.tpc_begin(t)
undo_result = self._storage.undo(tid, t)
vote_result = self._storage.tpc_vote(t)
if expected_oids is not None:
oids = set(undo_result[1]) if undo_result else set()
if vote_result:
oids.update(vote_result)
self.assertEqual(oids, set(expected_oids))
return self._storage.tpc_finish(t)
