def checkPackJustOldRevisions(self):
eq = self.assertEqual
raises = self.assertRaises
loads = self._makeloader()
# Create a root object. This can't be an instance of Object,
# otherwise the pickling machinery will serialize it as a persistent
# id and not as an object that contains references (persistent ids) to
# other objects.
root = Root()
# Create a persistent object, with some initial state
obj = self._newobj()
oid = obj.getoid()
# Link the root object to the persistent object, in order to keep the
# persistent object alive. Store the root object.
root.obj = obj
root.value = 0
revid0 = self._dostoreNP(ZERO, data=dumps(root))
# Make sure the root can be retrieved
data, revid = self._storage.load(ZERO, '')
eq(revid, revid0)
eq(loads(data).value, 0)
# Commit three different revisions of the other object
obj.value = 1
revid1 = self._dostoreNP(oid, data=pdumps(obj))
obj.value = 2
revid2 = self._dostoreNP(oid, revid=revid1, data=pdumps(obj))
obj.value = 3
revid3 = self._dostoreNP(oid, revid=revid2, data=pdumps(obj))
# Now make sure only the latest revision can be extracted
__traceback_info__ = [
bytes8_to_int64(x) for x in (oid, revid1, revid2)
]
raises(KeyError, self._storage.loadSerial, oid, revid1)
raises(KeyError, self._storage.loadSerial, oid, revid2)
data = self._storage.loadSerial(oid, revid3)
pobj = loads(data)
eq(pobj.getoid(), oid)
eq(pobj.value, 3)
# Now pack. The object should stay alive because it's pointed
# to by the root.
self._storage.pack(self._storage.lastTransactionInt(), referencesf)
# Make sure the revisions are gone, but that object zero and revision
# 3 are still there and correct
data, revid = self._storage.load(ZERO, '')
eq(revid, revid0)
eq(loads(data).value, 0)
raises(KeyError, self._storage.loadSerial, oid, revid1)
raises(KeyError, self._storage.loadSerial, oid, revid2)
data = self._storage.loadSerial(oid, revid3)
pobj = loads(data)
eq(pobj.getoid(), oid)
eq(pobj.value, 3)
data, revid = self._storage.load(oid, '')
eq(revid, revid3)
pobj = loads(data)
eq(pobj.getoid(), oid)
eq(pobj.value, 3)
def checkPackJustOldRevisions(self):
eq = self.assertEqual
raises = self.assertRaises
loads = self._makeloader()
# Create a root object. This can't be an instance of Object,
# otherwise the pickling machinery will serialize it as a persistent
# id and not as an object that contains references (persistent ids) to
# other objects.
root = Root()
# Create a persistent object, with some initial state
obj = self._newobj()
oid = obj.getoid()
# Link the root object to the persistent object, in order to keep the
# persistent object alive. Store the root object.
root.obj = obj
root.value = 0
revid0 = self._dostoreNP(ZERO, data=dumps(root))
# Make sure the root can be retrieved
data, revid = self._storage.load(ZERO, '')
eq(revid, revid0)
eq(loads(data).value, 0)
# Commit three different revisions of the other object
obj.value = 1
revid1 = self._dostoreNP(oid, data=pdumps(obj))
obj.value = 2
revid2 = self._dostoreNP(oid, revid=revid1, data=pdumps(obj))
obj.value = 3
revid3 = self._dostoreNP(oid, revid=revid2, data=pdumps(obj))
# Now make sure only the latest revision can be extracted
raises(KeyError, self._storage.loadSerial, oid, revid1)
raises(KeyError, self._storage.loadSerial, oid, revid2)
data = self._storage.loadSerial(oid, revid3)
pobj = loads(data)
eq(pobj.getoid(), oid)
eq(pobj.value, 3)
# Now pack. The object should stay alive because it's pointed
# to by the root.
now = packtime = time.time()
while packtime <= now:
packtime = time.time()
self._storage.pack(packtime, referencesf)
# Make sure the revisions are gone, but that object zero and revision
# 3 are still there and correct
data, revid = self._storage.load(ZERO, '')
eq(revid, revid0)
eq(loads(data).value, 0)
raises(KeyError, self._storage.loadSerial, oid, revid1)
raises(KeyError, self._storage.loadSerial, oid, revid2)
data = self._storage.loadSerial(oid, revid3)
pobj = loads(data)
eq(pobj.getoid(), oid)
eq(pobj.value, 3)
data, revid = self._storage.load(oid, '')
eq(revid, revid3)
pobj = loads(data)
eq(pobj.getoid(), oid)
eq(pobj.value, 3)
def checkPackAllRevisions(self):
from relstorage._compat import loads
self._initroot()
eq = self.assertEqual
raises = self.assertRaises
# Create a `persistent' object
obj = self._newobj()
oid = obj.getoid()
obj.value = 1
# Commit three different revisions
revid1 = self._dostoreNP(oid, data=pdumps(obj))
obj.value = 2
revid2 = self._dostoreNP(oid, revid=revid1, data=pdumps(obj))
obj.value = 3
revid3 = self._dostoreNP(oid, revid=revid2, data=pdumps(obj))
# Now make sure only the latest revision can be extracted
raises(KeyError, self._storage.loadSerial, oid, revid1)
raises(KeyError, self._storage.loadSerial, oid, revid2)
data = self._storage.loadSerial(oid, revid3)
pobj = loads(data)
eq(pobj.getoid(), oid)
eq(pobj.value, 3)
# Now pack all transactions; need to sleep a second to make
# sure that the pack time is greater than the last commit time.
now = packtime = time.time()
while packtime <= now:
packtime = time.time()
self._storage.pack(packtime, referencesf)
self._storage.sync()
# All revisions of the object should be gone, since there is no
# reference from the root object to this object.
raises(KeyError, self._storage.loadSerial, oid, revid1)
raises(KeyError, self._storage.loadSerial, oid, revid2)
raises(KeyError, self._storage.loadSerial, oid, revid3)
raises(KeyError, self._storage.load, oid, '')
def checkPackAllRevisions(self):
from relstorage._compat import loads
self._initroot()
eq = self.assertEqual
raises = self.assertRaises
# Create a `persistent' object
obj = self._newobj()
oid = obj.getoid()
obj.value = 1
# Commit three different revisions
revid1 = self._dostoreNP(oid, data=pdumps(obj))
obj.value = 2
revid2 = self._dostoreNP(oid, revid=revid1, data=pdumps(obj))
obj.value = 3
revid3 = self._dostoreNP(oid, revid=revid2, data=pdumps(obj))
# Now make sure only the latest revision can be extracted
raises(KeyError, self._storage.loadSerial, oid, revid1)
raises(KeyError, self._storage.loadSerial, oid, revid2)
data = self._storage.loadSerial(oid, revid3)
pobj = loads(data)
eq(pobj.getoid(), oid)
eq(pobj.value, 3)
# Now pack all transactions; need to sleep a second to make
# sure that the pack time is greater than the last commit time.
now = packtime = time.time()
while packtime <= now:
packtime = time.time()
self._storage.pack(packtime, referencesf)
self._storage.sync()
# All revisions of the object should be gone, since there is no
# reference from the root object to this object.
raises(KeyError, self._storage.loadSerial, oid, revid1)
raises(KeyError, self._storage.loadSerial, oid, revid2)
raises(KeyError, self._storage.loadSerial, oid, revid3)
raises(KeyError, self._storage.load, oid, '')
def history(self, oid, version=None, size=1, filter=None):
# pylint:disable=unused-argument,too-many-locals
cursor = self.load_connection.cursor
oid_int = bytes8_to_int64(oid)
try:
rows = self.adapter.dbiter.iter_object_history(cursor, oid_int)
except KeyError:
raise POSKeyError(oid)
res = []
for tid_int, username, description, extension, length in rows:
tid = int64_to_8bytes(tid_int)
if extension:
d = loads(extension)
else:
d = {}
d.update({
"time": TimeStamp(tid).timeTime(),
"user_name": username or b'',
"description": description or b'',
"tid": tid,
"version": '',
"size": length,
"rs_tid_int": tid_int,
"rs_oid_int": oid_int,
})
if filter is None or filter(d):
res.append(d)
if size is not None and len(res) >= size:
break
return res
def undoLog(self, first=0, last=-20, filter=None):
if last < 0:
last = first - last
# use a private connection to ensure the most current results
with self.load_connection.isolated_connection() as cursor:
tx_iter = self.adapter.dbiter.iter_transactions(cursor)
i = 0
res = []
for tx in tx_iter:
tid = int64_to_8bytes(tx.tid_int)
# Note that user and desc are schizophrenic. The transaction
# interface specifies that they are a Python str, *probably*
# meaning bytes. But code in the wild and the ZODB test suite
# sets them as native strings, meaning unicode on Py3. OTOH, the
# test suite checks that this method *returns* them as bytes!
# This is largely cleaned up with transaction 2.0/ZODB 5, where the storage
# interface is defined in terms of bytes only.
d = {
'id': base64_encodebytes(tid)[:-1], # pylint:disable=deprecated-method
'time': TimeStamp(tid).timeTime(),
'user_name': tx.username or b'',
'description': tx.description or b'',
}
if tx.extension:
d.update(loads(tx.extension))
if filter is None or filter(d):
if i >= first:
res.append(d)
i += 1
if i >= last:
break
return res
def checkPackAllRevisions(self):
from relstorage._compat import loads
self._initroot()
eq = self.assertEqual
raises = self.assertRaises
# Create a `persistent' object
obj = self._newobj()
oid = obj.getoid()
obj.value = 1
# Commit three different revisions
revid1 = self._dostoreNP(oid, data=pdumps(obj))
obj.value = 2
revid2 = self._dostoreNP(oid, revid=revid1, data=pdumps(obj))
obj.value = 3
revid3 = self._dostoreNP(oid, revid=revid2, data=pdumps(obj))
# Now make sure only the latest revision can be extracted
raises(KeyError, self._storage.loadSerial, oid, revid1)
raises(KeyError, self._storage.loadSerial, oid, revid2)
data = self._storage.loadSerial(oid, revid3)
pobj = loads(data)
eq(pobj.getoid(), oid)
eq(pobj.value, 3)
self._storage.pack(self._storage.lastTransactionInt() + 1, referencesf)
self._storage.sync()
# All revisions of the object should be gone, since there is no
# reference from the root object to this object.
for revid in (revid1, revid2, revid3):
__traceback_info__ = oid, revid
with raises(KeyError):
self._storage.loadSerial(oid, revid)
with raises(KeyError):
self._storage.load(oid)
def __init__(self, trans_iter, tid_int, user, desc, ext, packed):
self._trans_iter = trans_iter
self._tid_int = tid_int
tid = int64_to_8bytes(tid_int)
status = 'p' if packed else ' '
user = user or b''
description = desc or b''
if ext:
extension = loads(ext)
else:
extension = {}
TransactionRecord.__init__(self, tid, status, user, description, extension)
def undoLog(self, first=0, last=-20, filter=None):
# pylint:disable=too-many-locals
if last < 0:
last = first - last
# use a private connection to ensure the most current results
adapter = self.adapter
conn, cursor = adapter.connmanager.open()
try:
rows = adapter.dbiter.iter_transactions(cursor)
i = 0
res = []
for tid_int, user, desc, ext in rows:
tid = int64_to_8bytes(tid_int)
# Note that user and desc are schizophrenic. The transaction
# interface specifies that they are a Python str, *probably*
# meaning bytes. But code in the wild and the ZODB test suite
# sets them as native strings, meaning unicode on Py3. OTOH, the
# test suite checks that this method *returns* them as bytes!
# This is largely cleaned up with transaction 2.0/ZODB 5, where the storage
# interface is defined in terms of bytes only.
d = {
'id': base64_encodebytes(tid)[:-1], # pylint:disable=deprecated-method
'time': TimeStamp(tid).timeTime(),
'user_name': user or b'',
'description': desc or b'',
}
if ext:
d.update(loads(ext))
if filter is None or filter(d):
if i >= first:
res.append(d)
i += 1
if i >= last:
break
return res
finally:
adapter.connmanager.close(conn, cursor)
def checkPackOnlyOneObject(self):
eq = self.assertEqual
raises = self.assertRaises
loads = self._makeloader()
# Create a root object. This can't be an instance of Object,
# otherwise the pickling machinery will serialize it as a persistent
# id and not as an object that contains references (persistent ids) to
# other objects.
root = Root()
# Create a persistent object, with some initial state
obj1 = self._newobj()
oid1 = obj1.getoid()
# Create another persistent object, with some initial state.
obj2 = self._newobj()
oid2 = obj2.getoid()
# Link the root object to the persistent objects, in order to keep
# them alive. Store the root object.
root.obj1 = obj1
root.obj2 = obj2
root.value = 0
revid0 = self._dostoreNP(ZERO, data=dumps(root))
# Make sure the root can be retrieved
data, revid = self._storage.load(ZERO, '')
eq(revid, revid0)
eq(loads(data).value, 0)
# Commit three different revisions of the first object
obj1.value = 1
revid1 = self._dostoreNP(oid1, data=pdumps(obj1))
obj1.value = 2
revid2 = self._dostoreNP(oid1, revid=revid1, data=pdumps(obj1))
obj1.value = 3
revid3 = self._dostoreNP(oid1, revid=revid2, data=pdumps(obj1))
# Now make sure only the latest revision can be extracted
raises(KeyError, self._storage.loadSerial, oid1, revid1)
raises(KeyError, self._storage.loadSerial, oid1, revid2)
data = self._storage.loadSerial(oid1, revid3)
pobj = loads(data)
eq(pobj.getoid(), oid1)
eq(pobj.value, 3)
# Now commit a revision of the second object
obj2.value = 11
revid4 = self._dostoreNP(oid2, data=pdumps(obj2))
# And make sure the revision can be extracted
data = self._storage.loadSerial(oid2, revid4)
pobj = loads(data)
eq(pobj.getoid(), oid2)
eq(pobj.value, 11)
# Now pack just revisions 1 and 2 of object1. Object1's current
# revision should stay alive because it's pointed to by the root, as
# should Object2's current revision.
now = packtime = time.time()
while packtime <= now:
packtime = time.time()
self._storage.pack(packtime, referencesf)
# Make sure the revisions are gone, but that object zero, object2, and
# revision 3 of object1 are still there and correct.
data, revid = self._storage.load(ZERO, '')
eq(revid, revid0)
eq(loads(data).value, 0)
raises(KeyError, self._storage.loadSerial, oid1, revid1)
raises(KeyError, self._storage.loadSerial, oid1, revid2)
data = self._storage.loadSerial(oid1, revid3)
pobj = loads(data)
eq(pobj.getoid(), oid1)
eq(pobj.value, 3)
data, revid = self._storage.load(oid1, '')
eq(revid, revid3)
pobj = loads(data)
eq(pobj.getoid(), oid1)
eq(pobj.value, 3)
data, revid = self._storage.load(oid2, '')
eq(revid, revid4)
eq(loads(data).value, 11)
data = self._storage.loadSerial(oid2, revid4)
pobj = loads(data)
eq(pobj.getoid(), oid2)
eq(pobj.value, 11)
def checkPackOnlyOneObject(self):
eq = self.assertEqual
raises = self.assertRaises
loads = self._makeloader()
# Create a root object. This can't be an instance of Object,
# otherwise the pickling machinery will serialize it as a persistent
# id and not as an object that contains references (persistent ids) to
# other objects.
root = Root()
# Create a persistent object, with some initial state
obj1 = self._newobj()
oid1 = obj1.getoid()
# Create another persistent object, with some initial state.
obj2 = self._newobj()
oid2 = obj2.getoid()
# Link the root object to the persistent objects, in order to keep
# them alive. Store the root object.
root.obj1 = obj1
root.obj2 = obj2
root.value = 0
revid0 = self._dostoreNP(ZERO, data=dumps(root))
# Make sure the root can be retrieved
data, revid = self._storage.load(ZERO, '')
eq(revid, revid0)
eq(loads(data).value, 0)
# Commit three different revisions of the first object
obj1.value = 1
revid1 = self._dostoreNP(oid1, data=pdumps(obj1))
obj1.value = 2
revid2 = self._dostoreNP(oid1, revid=revid1, data=pdumps(obj1))
obj1.value = 3
revid3 = self._dostoreNP(oid1, revid=revid2, data=pdumps(obj1))
# Now make sure only the latest revision can be extracted
raises(KeyError, self._storage.loadSerial, oid1, revid1)
raises(KeyError, self._storage.loadSerial, oid1, revid2)
data = self._storage.loadSerial(oid1, revid3)
pobj = loads(data)
eq(pobj.getoid(), oid1)
eq(pobj.value, 3)
# Now commit a revision of the second object
obj2.value = 11
revid4 = self._dostoreNP(oid2, data=pdumps(obj2))
# And make sure the revision can be extracted
data = self._storage.loadSerial(oid2, revid4)
pobj = loads(data)
eq(pobj.getoid(), oid2)
eq(pobj.value, 11)
# Now pack just revisions 1 and 2 of object1. Object1's current
# revision should stay alive because it's pointed to by the root, as
# should Object2's current revision.
now = packtime = time.time()
while packtime <= now:
packtime = time.time()
self._storage.pack(packtime, referencesf)
# Make sure the revisions are gone, but that object zero, object2, and
# revision 3 of object1 are still there and correct.
data, revid = self._storage.load(ZERO, '')
eq(revid, revid0)
eq(loads(data).value, 0)
raises(KeyError, self._storage.loadSerial, oid1, revid1)
raises(KeyError, self._storage.loadSerial, oid1, revid2)
data = self._storage.loadSerial(oid1, revid3)
pobj = loads(data)
eq(pobj.getoid(), oid1)
eq(pobj.value, 3)
data, revid = self._storage.load(oid1, '')
eq(revid, revid3)
pobj = loads(data)
eq(pobj.getoid(), oid1)
eq(pobj.value, 3)
data, revid = self._storage.load(oid2, '')
eq(revid, revid4)
eq(loads(data).value, 11)
data = self._storage.loadSerial(oid2, revid4)
pobj = loads(data)
eq(pobj.getoid(), oid2)
eq(pobj.value, 11)