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Kirill Smelkov
erp5
Commits
77f9030e
Commit
77f9030e
authored
Jan 03, 2013
by
Julien Muchembled
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DemoStorage: update conflict resolution patch for ZODB 3.10
parent
4718f5e1
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-32
product/ERP5Type/patches/DemoStorage.py
product/ERP5Type/patches/DemoStorage.py
+15
-32
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product/ERP5Type/patches/DemoStorage.py
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77f9030e
##############################################################################
#
# Copyright (c) 2001, 2002 Zope Corporation and Contributors.
# Copyright (c) 2010 Nexedi SARL and Contributors. All Rights Reserved.
# All Rights Reserved.
# Copyright (c) 2010-2013 Nexedi SARL and Contributors. All Rights Reserved.
#
# This software is subject to the provisions of the Zope Public License,
# Version 2.1 (ZPL). A copy of the ZPL should accompany this distribution.
...
...
@@ -13,43 +12,27 @@
#
##############################################################################
from
ZODB.DemoStorage
import
DemoStorage
from
ZODB.ConflictResolution
import
tryToResolveConflict
,
ResolvedSerial
from
ZODB
import
DemoStorage
as
_DemoStorage
from
ZODB.ConflictResolution
import
ConflictResolvingStorage
,
ResolvedSerial
from
ZODB.POSException
import
ConflictError
if
1
:
assert
not
issubclass
(
_DemoStorage
.
DemoStorage
,
ConflictResolvingStorage
)
class
DemoStorage
(
_DemoStorage
.
DemoStorage
,
ConflictResolvingStorage
):
##
# Implement conflict resolution for DemoStorage
#
import
ZODB.POSException
def
store
(
self
,
oid
,
serial
,
data
,
version
,
transaction
):
assert
version
==
''
,
"versions aren't supported"
if
transaction
is
not
self
.
_transaction
:
raise
ZODB
.
POSException
.
StorageTransactionError
(
self
,
transaction
)
# Since the OID is being used, we don't have to keep up with it any
# more. Save it now so we can forget it later. :)
self
.
_stored_oids
.
add
(
oid
)
# See if we already have changes for this oid
try
:
old
=
self
.
changes
.
load
(
oid
,
''
)[
1
]
except
ZODB
.
POSException
.
POSKeyError
:
try
:
old
=
self
.
base
.
load
(
oid
,
''
)[
1
]
except
ZODB
.
POSException
.
POSKeyError
:
old
=
serial
if
old
!=
serial
:
# <patch>
rdata
=
tryToResolveConflict
(
self
,
oid
,
old
,
serial
,
data
)
if
rdata
is
None
:
raise
ZODB
.
POSException
.
ConflictError
(
oid
=
oid
,
serials
=
(
old
,
serial
),
data
=
data
)
return
super
(
DemoStorage
,
self
).
store
(
oid
,
serial
,
data
,
version
,
transaction
)
except
ConflictError
,
e
:
old
=
e
.
serials
[
0
]
rdata
=
self
.
tryToResolveConflict
(
oid
,
old
,
serial
,
data
)
if
rdata
is
None
:
# BBB: Zope < 2.13
raise
ConflictError
(
oid
=
oid
,
serials
=
(
old
,
serial
),
data
=
data
)
self
.
changes
.
store
(
oid
,
old
,
rdata
,
''
,
transaction
)
return
ResolvedSerial
# </patch>
return
self
.
changes
.
store
(
oid
,
serial
,
data
,
''
,
transaction
)
DemoStorage
.
store
=
stor
e
_DemoStorage
.
DemoStorage
=
DemoStorag
e
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