def cleanHistory(self, obj):
context, history_id = dereference(obj)
historiesstorage = api.portal.get_tool(name='portal_historiesstorage')
history = historiesstorage._getShadowHistory(history_id)
if not history:
return
keys = set(
[
historiesstorage._getZVCAccessInfo(history_id, selector, True)[
0
]
for selector in history._available
]
)
versions_repo = historiesstorage._getZVCRepo()
for key in keys:
zope_version_history = versions_repo._histories.get(key, None)
if zope_version_history:
zope_version_history = OOBTree()
storage = historiesstorage._getShadowStorage()._storage
storage.pop(history_id, None)
dereferenced_obj = dereference(
history_id=history_id, zodb_hook=self.context
)[0]
if hasattr(dereferenced_obj, 'version_id'):
delattr(dereferenced_obj, 'version_id')
def purge(self, obj=None, history_id=None, selector=None, metadata={},
countPurged=True):
"""See IPurgeSupport.
"""
storage = getToolByName(self, 'portal_historiesstorage')
obj, history_id = dereference(obj, history_id, self)
storage.purge(history_id, selector, metadata, countPurged)
def purge_history(site, portal_types_to_purge=None, maxNumberOfVersionsToKeep=None, verbose=False):
policy = site.portal_purgepolicy
portal_repository = site.portal_repository
if policy.maxNumberOfVersionsToKeep==-1 and not maxNumberOfVersionsToKeep:
print "... maxNumberOfVersionsToKeep is -1; skipping"
return
old_maxNumberOfVersionsToKeep = policy.maxNumberOfVersionsToKeep
if maxNumberOfVersionsToKeep is not None:
print "... Putting maxNumberOfVersionsToKeep from",
print old_maxNumberOfVersionsToKeep, "to", maxNumberOfVersionsToKeep
policy.maxNumberOfVersionsToKeep = maxNumberOfVersionsToKeep
if portal_types_to_purge:
results = site.portal_catalog(portal_type=portal_types_to_purge)
else:
results = site.portal_catalog()
for x in results:
try:
obj = x.getObject()
if not portal_repository.isVersionable(obj):
continue
if verbose:
print "... cleaning history for", x.getPath(), "(%s)" % x.portal_type
obj, history_id = dereference(obj)
policy.beforeSaveHook(history_id, obj)
if shasattr(obj, 'version_id'):
del obj.version_id
except ConflictError:
raise
except Exception, inst:
# sometimes, even with the spoofed request, the getObject failed
print "ERROR purging", x.getPath(), "(%s)" % x.portal_type
print " ", inst
def purge(self, obj=None, history_id=None, selector=None, metadata={},
countPurged=True):
"""See IPurgeSupport.
"""
storage = getToolByName(self, 'portal_historiesstorage')
obj, history_id = dereference(obj, history_id, self)
storage.purge(history_id, selector, metadata, countPurged)
def isUpToDate(self, obj=None, history_id=None, selector=None,
countPurged=True):
"""See IPurgeSupport.
"""
storage = getToolByName(self, 'portal_historiesstorage')
obj, history_id = dereference(obj, history_id, self)
if not storage.isRegistered(history_id):
raise ArchivistUnregisteredError(
"The object %r is not registered" % obj)
modified = storage.getModificationDate(history_id, selector,
countPurged)
return modified == obj.modified()
def isUpToDate(self, obj=None, history_id=None, selector=None,
countPurged=True):
"""See IPurgeSupport.
"""
storage = getToolByName(self, 'portal_historiesstorage')
obj, history_id = dereference(obj, history_id, self)
if not storage.isRegistered(history_id):
raise ArchivistUnregisteredError(
"The object %r is not registered" % obj)
modified = storage.getModificationDate(history_id, selector,
countPurged)
return modified == obj.modified()
def prepare(self, obj, app_metadata=None, sys_metadata={}):
"""See IArchivist.
"""
storage = getToolByName(self, 'portal_historiesstorage')
modifier = getToolByName(self, 'portal_modifier')
obj, history_id = dereference(obj, zodb_hook=self)
if storage.isRegistered(history_id):
# already registered
version_id = len(self.queryHistory(obj))
is_registered = True
else:
# object isn't under version control yet
# A working copy being under version control needs to have
# a history_id, version_id (starts with 0) and a location_id
# (the current implementation isn't able yet to handle multiple
# locations. Nevertheless lets set the location id to a well
# known default value)
uidhandler = getToolByName(self, 'portal_historyidhandler')
history_id = uidhandler.register(obj)
version_id = obj.version_id = 0
alsoProvides(obj, IVersioned)
obj.location_id = 0
is_registered = False
# the hard work done here is:
# 1. ask for all attributes that have to be passed to the
# history storage by reference
# 2. clone the object with some modifications
# 3. modify the clone further
referenced_data = modifier.getReferencedAttributes(obj)
approxSize, clone, inside_orefs, outside_orefs = \
self._cloneByPickle(obj)
metadata, inside_crefs, outside_crefs = \
modifier.beforeSaveModifier(obj, clone)
# extend the ``sys_metadata`` by the metadata returned by the
# ``beforeSaveModifier`` modifier
sys_metadata.update(metadata)
# set the version id of the clone to be saved to the repository
# location_id and history_id are the same as on the working copy
# and remain unchanged
clone.version_id = version_id
# return the prepared infos (clone, refs, etc.)
clone_info = ObjectData(clone, inside_crefs, outside_crefs)
obj_info = ObjectData(obj, inside_orefs, outside_orefs)
return PreparedObject(history_id, obj_info, clone_info,
referenced_data, app_metadata,
sys_metadata, is_registered, approxSize)
def prepare(self, obj, app_metadata=None, sys_metadata={}):
"""See IArchivist.
"""
storage = getToolByName(self, 'portal_historiesstorage')
modifier = getToolByName(self, 'portal_modifier')
obj, history_id = dereference(obj, zodb_hook=self)
if storage.isRegistered(history_id):
# already registered
version_id = len(self.queryHistory(obj))
is_registered = True
else:
# object isn't under version control yet
# A working copy being under version control needs to have
# a history_id, version_id (starts with 0) and a location_id
# (the current implementation isn't able yet to handle multiple
# locations. Nevertheless lets set the location id to a well
# known default value)
uidhandler = getToolByName(self, 'portal_historyidhandler')
history_id = uidhandler.register(obj)
version_id = obj.version_id = 0
alsoProvides(obj, IVersioned)
obj.location_id = 0
is_registered = False
# the hard work done here is:
# 1. ask for all attributes that have to be passed to the
# history storage by reference
# 2. clone the object with some modifications
# 3. modify the clone further
referenced_data = modifier.getReferencedAttributes(obj)
approxSize, clone, inside_orefs, outside_orefs = \
self._cloneByPickle(obj)
metadata, inside_crefs, outside_crefs = \
modifier.beforeSaveModifier(obj, clone)
# extend the ``sys_metadata`` by the metadata returned by the
# ``beforeSaveModifier`` modifier
sys_metadata.update(metadata)
# set the version id of the clone to be saved to the repository
# location_id and history_id are the same as on the working copy
# and remain unchanged
clone.version_id = version_id
# return the prepared infos (clone, refs, etc.)
clone_info = ObjectData(clone, inside_crefs, outside_crefs)
obj_info = ObjectData(obj, inside_orefs, outside_orefs)
return PreparedObject(history_id, obj_info, clone_info,
referenced_data, app_metadata,
sys_metadata, is_registered, approxSize)
def getHistoryMetadata(self, obj=None, history_id=None):
""" Return the metadata blob for presenting summary
information, etc. If obj is not supplied, history is found
by history_id, if history_id is not supplied, history is
found by obj. If neither, return None.
"""
obj, history_id = dereference(obj, history_id, self)
storage = getToolByName(self, 'portal_historiesstorage')
try:
return storage.getHistoryMetadata(history_id)
except StorageUnregisteredError:
raise ArchivistUnregisteredError(
"Retrieving a version of an unregistered object is not "
"possible. Register the object '%r' first. " % obj)
def __init__(self, archivist, obj, history_id, preserve, countPurged):
"""Sets up a lazy history.
Takes an object which should be the original object in the portal,
and a history_id for the storage lookup. If the history id is
omitted then the history_id will be determined by dereferencing
the obj. If the obj is omitted, then the obj will be obtained by
dereferencing the history_id.
"""
self._modifier = getToolByName(archivist, 'portal_modifier')
storage = getToolByName(archivist, 'portal_historiesstorage')
self._obj, history_id = dereference(obj, history_id, archivist)
self._preserve = preserve
self._history = storage.getHistory(history_id, countPurged)
def getHistoryMetadata(self, obj=None, history_id=None):
""" Return the metadata blob for presenting summary
information, etc. If obj is not supplied, history is found
by history_id, if history_id is not supplied, history is
found by obj. If neither, return None.
"""
obj, history_id = dereference(obj, history_id, self)
storage = getToolByName(self, 'portal_historiesstorage')
try:
return storage.getHistoryMetadata(history_id)
except StorageUnregisteredError:
raise ArchivistUnregisteredError(
"Retrieving a version of an unregistered object is not "
"possible. Register the object '%r' first. " % obj)
def __init__(self, archivist, obj, history_id, preserve, countPurged):
"""Sets up a lazy history.
Takes an object which should be the original object in the portal,
and a history_id for the storage lookup. If the history id is
omitted then the history_id will be determined by dereferencing
the obj. If the obj is omitted, then the obj will be obtained by
dereferencing the history_id.
"""
self._modifier = getToolByName(archivist, 'portal_modifier')
storage = getToolByName(archivist, 'portal_historiesstorage')
self._obj, history_id = dereference(obj, history_id, archivist)
self._preserve = preserve
self._history = storage.getHistory(history_id, countPurged)
def object_removed(obj, event):
""" an object is being deleted -
also delete it's history
"""
if not IContentish.providedBy(obj):
return
try:
histories_storage = getToolByName(obj, 'portal_historiesstorage')
repo_tool = getToolByName(obj, 'portal_repository')
except AttributeError:
# XXX If tools are missing, there is nothing we can do.
# This occurs in some Products.CMFDiffTool and
# Products.CMFTestCase tests for 4.3.x. Maybe it should
# be fixed there.
return
obj, histid = dereference(obj)
if histid is None:
return
metadata = repo_tool.getHistoryMetadata(obj)
try:
num_versions = metadata.getLength(countPurged=False)
except AttributeError:
# portal_historiesstorage will return
# an empty list in certain cases,
# do nothing
return
current = metadata.retrieve(num_versions - 1)
sys_metadata = current['metadata']['sys_metadata']
if ('parent' in sys_metadata) and \
(sys_metadata['parent']['history_id'] != histid):
try:
histories_storage.retrieve(
history_id=sys_metadata['parent']['history_id'])
return
except StorageRetrieveError:
pass
length = len(histories_storage.getHistory(histid, countPurged=False))
for i in range(length):
histories_storage.purge(
histid,
0,
metadata={'sys_metadata': {
'comment': 'purged'
}},
countPurged=False)
def _set(kls, obj, versions):
if not versions:
return
portal_storage = getToolByName(obj, 'portal_historiesstorage')
# purge all existing first. Should only be one version though.
repo_tool = getToolByName(obj, "portal_repository")
history = repo_tool.getHistoryMetadata(obj)
if history:
length = history.getLength(countPurged=False)
history_id = dereference(obj)
for i in xrange(length - 1, -1, -1):
try:
portal_storage.purge(history_id, i)
except StoragePurgeError:
pass
for version in versions:
kls.saveVersion(obj, version)
def _set(kls, obj, versions):
if not versions:
return
portal_storage = getToolByName(obj, 'portal_historiesstorage')
# purge all existing first. Should only be one version though.
repo_tool = getToolByName(obj, "portal_repository")
history = repo_tool.getHistoryMetadata(obj)
if history:
length = history.getLength(countPurged=False)
history_id = dereference(obj)
for i in xrange(length - 1, -1, -1):
try:
portal_storage.purge(history_id, i)
except StoragePurgeError:
pass
for version in versions:
kls.saveVersion(obj, version)
def object_removed(obj, event):
""" an object is being deleted -
also delete it's history
"""
if not IContentish.providedBy(obj):
return
try:
histories_storage = getToolByName(obj, 'portal_historiesstorage')
repo_tool = getToolByName(obj, 'portal_repository')
except AttributeError:
# XXX If tools are missing, there is nothing we can do.
# This occurs in some Products.CMFDiffTool and
# Products.CMFTestCase tests for 4.3.x. Maybe it should
# be fixed there.
return
obj, histid = dereference(obj)
if histid is None:
return
metadata = repo_tool.getHistoryMetadata(obj)
try:
num_versions = metadata.getLength(countPurged=False)
except AttributeError:
# portal_historiesstorage will return
# an empty list in certain cases,
# do nothing
return
current = metadata.retrieve(num_versions - 1)
sys_metadata = current['metadata']['sys_metadata']
if ('parent' in sys_metadata) and \
(sys_metadata['parent']['history_id'] != histid):
try:
histories_storage.retrieve(
history_id=sys_metadata['parent']['history_id'])
return
except StorageRetrieveError:
pass
length = len(histories_storage.getHistory(histid, countPurged=False))
for i in range(length):
histories_storage.purge(
histid,
0,
metadata={'sys_metadata': {'comment': 'purged'}},
countPurged=False)
def retrieve(self, obj=None, history_id=None, selector=None, preserve=(),
countPurged=True):
obj, history_id = dereference(obj, history_id, self)
if selector is None:
selector = len(self._archive[history_id]) - 1 #HEAD
self.log("%sretrieve %s: hid=%s, selector=%s"
% (self.alog_indent, obj.getId(), history_id, selector))
data = self._archive[history_id][selector]
attr_handling_references = ['_objects','_tree','_count','_mt_index', '__annotations__']
attr_handling_references.extend(data['clone'].object.objectIds())
attr_handling_references.extend(obj.objectIds())
vdata = VersionData(data['clone'],
[],
attr_handling_references,
data['referenced_data'],
data['metadata'])
return deepCopy(vdata)
def setReference(self, target_obj, remove_info=True):
"""See IVersionAwareReference
"""
storage = getToolByName(target_obj, 'portal_historiesstorage')
# save as much information as possible
# it may be that the target object is not yet registered with the
# storage (aka not under version control)
target_obj, self.history_id = dereference(target_obj)
if storage.isRegistered(self.history_id):
self.version_id = target_obj.version_id
# XXX the location id has to be gotten from the object directly
self.location_id = 0 # XXX only one location possible currently
# XXX store the information if the referenced working copy
# was unchanged since the last checkin. In this case the
# the exact state of the referenced object may be retrieved also.
# XXX we really need a isUpToDate/isChanged methods!
if remove_info and hasattr(self, 'info'):
del self.info
def retrieve(self, obj=None, history_id=None, selector=None, preserve=(),
countPurged=True):
obj, history_id = dereference(obj, history_id, self)
if selector is None:
selector = len(self._archive[history_id]) - 1 #HEAD
self.log("%sretrieve %s: hid=%s, selector=%s"
% (self.alog_indent, obj.getId(), history_id, selector))
data = self._archive[history_id][selector]
attr_handling_references = ['_objects','_tree','_count','_mt_index', '__annotations__']
attr_handling_references.extend(data['clone'].object.objectIds())
attr_handling_references.extend(obj.objectIds())
vdata = VersionData(data['clone'],
[],
attr_handling_references,
data['referenced_data'],
data['metadata'])
return deepCopy(vdata)
def setReference(self, target_obj, remove_info=True):
"""See IVersionAwareReference
"""
storage = getToolByName(target_obj, 'portal_historiesstorage')
# save as much information as possible
# it may be that the target object is not yet registered with the
# storage (aka not under version control)
target_obj, self.history_id = dereference(target_obj)
if storage.isRegistered(self.history_id):
self.version_id = target_obj.version_id
# XXX the location id has to be gotten from the object directly
self.location_id = 0 # XXX only one location possible currently
# XXX store the information if the referenced working copy
# was unchanged since the last checkin. In this case the
# the exact state of the referenced object may be retrieved also.
# XXX we really need a isUpToDate/isChanged methods!
if remove_info and hasattr(self, 'info'):
del self.info
def del_old_notice(self):
print 'Start'
policy = getToolByName(self.portal, 'portal_purgepolicy')
catalog = getToolByName(self.portal, 'portal_catalog')
removeCount = 0
for count, brain in enumerate(catalog()):
obj = brain.getObject()
obj, history_id = dereference(obj)
if history_id is not None:
policy.beforeSaveHook(history_id, obj)
print 'purged object %s: %s' % (count, obj.absolute_url_path())
removeCount += 1
if removeCount == 1000:
break
if not count % 10000:
print count
transaction.commit()
return
def dereference_by_id(self, history_id):
''' Dereference an object by history_id
'''
return dereference(history_id=history_id,
zodb_hook=self.context)
def dereference_by_id(self, history_id):
''' Dereference an object by history_id
'''
return dereference(history_id=history_id, zodb_hook=self.context)
def getHistory(self, obj=None, history_id=None, preserve=()):
obj, history_id = dereference(obj, history_id, self)
return [deepCopy(obj) for obj in self._archive[history_id]]
def getHistory(self, obj=None, history_id=None, preserve=()):
obj, history_id = dereference(obj, history_id, self)
return [deepCopy(obj) for obj in self._archive[history_id]]
from zope.app.component.hooks import setSite
from Products.CMFEditions.utilities import dereference
import transaction
from DateTime import DateTime
sites = {}
for child_node in app.getChildNodes():
# Find all plone sites hosted on this db
if isinstance(child_node, PloneSite):
sites[child_node.__name__] = child_node
print "Found sites in the db(sites): %s" % ", ".join(sites.keys())
for site in sites.values():
setSite(site)
admin=app.acl_users.getUserById("portaladmin")
newSecurityManager(None, admin)
policy = getToolByName(site, 'portal_purgepolicy')
catalog = getToolByName(site, 'portal_catalog')
for count, brain in enumerate(catalog()):
obj = brain.getObject()
# only purge old content
if obj.created() < (DateTime() - 30):
obj, history_id = dereference(obj)
policy.beforeSaveHook(history_id, obj)
print 'purged object ' + obj.absolute_url_path()
transaction.commit()
def isUpToDate(self, obj=None, history_id=None, selector=None):
obj = dereference(obj=obj, history_id=history_id, zodb_hook=self)[0]
mem = self.retrieve(obj=obj, history_id=history_id, selector=selector)
return mem.data.object.modified() == obj.modified()
def getHistoryMetadata(self, obj=None, history_id=None):
obj, history_id = dereference(obj, history_id, self)
return [item['metadata'] for item in self._archive[history_id]]
def prepare(self, obj, app_metadata=None, sys_metadata={}):
obj, history_id = dereference(obj)
if history_id is None:
# object isn't under version control yet
# An working copy beeing under version control needs to have
# a history_id, version_id (starts with 0) and a location_id
# (the current implementation isn't able yet to handle multiple
# locations. Nevertheless lets set the location id to a well
# known default value)
portal_hidhandler = getToolByName(obj, 'portal_historyidhandler')
history_id = portal_hidhandler.register(obj)
version_id = obj.version_id = 0
obj.location_id = 0
is_registered = False
else:
version_id = len(self.queryHistory(obj))
is_registered = True
base_obj = aq_base(obj)
doc1_inside = getattr(base_obj, 'doc1_inside', None)
doc2_inside = getattr(base_obj, 'doc2_inside', None)
doc3_outside = getattr(base_obj, 'doc3_outside', None)
# simulate clone modifiers
icrefs = []
ocrefs = []
clone = deepCopy(base_obj)
if doc1_inside is not None:
icrefs.append(ObjectManagerStorageAdapter(clone, 'doc1_inside'))
if doc2_inside is not None:
icrefs.append(ObjectManagerStorageAdapter(clone, 'doc2_inside'))
if doc3_outside is not None:
ocrefs.append(ObjectManagerStorageAdapter(clone, 'doc3_outside'))
crefs = icrefs + ocrefs
# simulate before save modifier
iorefs = []
oorefs = []
if doc1_inside is not None:
iorefs.append(getattr(obj, 'doc1_inside'))
if doc2_inside is not None:
iorefs.append(getattr(obj, 'doc2_inside'))
if doc3_outside is not None:
oorefs.append(getattr(obj, 'doc3_outside'))
orefs = iorefs + oorefs
for cref in crefs:
cref.setAttribute(VersionAwareReference())
# log
if sys_metadata['originator'] is None:
self.log("")
if orefs:
self.log("%sprepare %s: hid=%s, refs=(%s)"
% (self.alog_indent,
obj.getId(),
history_id,
', '.join([ref.getId() for ref in orefs])))
else:
self.log("%sprepare %s: hid=%s"
% (self.alog_indent, obj.getId(), history_id))
self.alog_indent += ' '
# prepare object structure
original_info = ObjectData(obj, iorefs, oorefs)
clone_info = ObjectData(clone, icrefs, ocrefs)
approxSize = None
return PreparedObject(history_id, original_info, clone_info, (),
app_metadata, sys_metadata, is_registered, approxSize)
def prepare(self, obj, app_metadata=None, sys_metadata={}):
obj, history_id = dereference(obj)
if history_id is None:
# object isn't under version control yet
# An working copy beeing under version control needs to have
# a history_id, version_id (starts with 0) and a location_id
# (the current implementation isn't able yet to handle multiple
# locations. Nevertheless lets set the location id to a well
# known default value)
portal_hidhandler = getToolByName(obj, 'portal_historyidhandler')
history_id = portal_hidhandler.register(obj)
version_id = obj.version_id = 0
obj.location_id = 0
is_registered = False
else:
version_id = len(self.queryHistory(obj))
is_registered = True
base_obj = aq_base(obj)
doc1_inside = getattr(base_obj, 'doc1_inside', None)
doc2_inside = getattr(base_obj, 'doc2_inside', None)
doc3_outside = getattr(base_obj, 'doc3_outside', None)
# simulate clone modifiers
icrefs = []
ocrefs = []
clone = deepCopy(base_obj)
if doc1_inside is not None:
icrefs.append(ObjectManagerStorageAdapter(clone, 'doc1_inside'))
if doc2_inside is not None:
icrefs.append(ObjectManagerStorageAdapter(clone, 'doc2_inside'))
if doc3_outside is not None:
ocrefs.append(ObjectManagerStorageAdapter(clone, 'doc3_outside'))
crefs = icrefs + ocrefs
# simulate before save modifier
iorefs = []
oorefs = []
if doc1_inside is not None:
iorefs.append(getattr(obj, 'doc1_inside'))
if doc2_inside is not None:
iorefs.append(getattr(obj, 'doc2_inside'))
if doc3_outside is not None:
oorefs.append(getattr(obj, 'doc3_outside'))
orefs = iorefs + oorefs
for cref in crefs:
cref.setAttribute(VersionAwareReference())
# log
if sys_metadata['originator'] is None:
self.log("")
if orefs:
self.log("%sprepare %s: hid=%s, refs=(%s)"
% (self.alog_indent,
obj.getId(),
history_id,
', '.join([ref.getId() for ref in orefs])))
else:
self.log("%sprepare %s: hid=%s"
% (self.alog_indent, obj.getId(), history_id))
self.alog_indent += ' '
# prepare object structure
original_info = ObjectData(obj, iorefs, oorefs)
clone_info = ObjectData(clone, icrefs, ocrefs)
approxSize = None
return PreparedObject(history_id, original_info, clone_info, (),
app_metadata, sys_metadata, is_registered, approxSize)
def dereference(self, target=None):
''' Return the portal_historiesstorage tool
'''
return dereference(target or self.context)
def __init__(self, obj, version_data):
self.obj, self.history_id = dereference(obj)
self.selector = version_data.version_id
self.version_data = version_data
self.storage = api.portal.get_tool('portal_historiesstorage')
def dereference(self, target=None):
''' Return the portal_historiesstorage tool
'''
return dereference(target or self.context)
def getHistoryMetadata(self, obj=None, history_id=None):
obj, history_id = dereference(obj, history_id, self)
return [item['metadata'] for item in self._archive[history_id]]
def _recursiveRetrieve(self, obj=None, history_id=None, selector=None, preserve=(),
inplace=False, source=None, fixup_queue=None,
ignore_existing=False, countPurged=True):
"""This is the real workhorse pulling objects out recursively.
"""
portal_archivist = getToolByName(self, 'portal_archivist')
portal_reffactories = getToolByName(self, 'portal_referencefactories')
if ignore_existing:
obj = None
else:
obj, history_id = dereference(obj, history_id, self)
hasBeenDeleted = obj is None
# CMF's invokeFactory needs the added object be traversable from
# itself to the root and from the root to the itself. This is the
# reason why it is necessary to replace the working copies current
# state with the one of the versions state retrieved. If the
# operation is not an inplace operation (retrieve instead of
# revert) this has to be reversed after having recursed into the
# tree.
if hasBeenDeleted:
# if the object to retreive doesn't have a counterpart in the tree
# build a new one before retrieving an old state
vdata = portal_archivist.retrieve(obj, history_id, selector,
preserve, countPurged)
repo_clone = vdata.data.object
obj = portal_reffactories.invokeFactory(repo_clone, source)
hasBeenMoved = False
else:
if source is None:
##### the source has to be stored with the object at save time
# I(gregweb)'m pretty sure the whole source stuff here gets
# obsolete as soon as a va_ref to the source is stored also
# XXX for now let's stick with this:
source = aq_parent(aq_inner(obj))
# in the special case the object has been moved the retrieved
# object has to get a new history (it's like copying back back
# the object and then retrieve an old state)
hasBeenMoved = portal_reffactories.hasBeenMoved(obj, source)
if hasBeenMoved:
if getattr(aq_base(source), obj.getId(), None) is None:
vdata = portal_archivist.retrieve(obj, history_id, selector,
preserve, countPurged)
repo_clone = vdata.data.object
obj = portal_reffactories.invokeFactory(repo_clone, source)
else:
# What is the desired behavior
pass
vdata = portal_archivist.retrieve(obj, history_id, selector,
preserve, countPurged)
# Replace the objects attributes retaining identity.
_missing = object()
attrs_to_leave = vdata.attr_handling_references
for key, val in vdata.data.object.__dict__.items():
if key in attrs_to_leave:
continue
obj_val = getattr(aq_base(obj), key, _missing)
setattr(obj, key, val)
# Delete reference attributes.
for ref in vdata.refs_to_be_deleted:
ref.remove(permanent=inplace)
# retrieve all inside refs
for attr_ref in vdata.data.inside_refs:
# get the referenced working copy
# XXX if the working copy we're searching for was moved to
# somewhere else *outside* we generate an another object with
# the same history_id. Unfortunately we're not able to handle
# this correctly before multi location stuff is implemented.
# XXX Perhaps there is a need for a workaround!
va_ref = attr_ref.getAttribute()
if va_ref is None:
# a missing reference, the policy has changed,
# don't try to replace it
continue
history_id = va_ref.history_id
# retrieve the referenced version (always count purged versions
# also!)
ref_vdata= self._recursiveRetrieve(history_id=history_id,
selector=va_ref.version_id,
preserve=(),
inplace=inplace,
source=obj,
fixup_queue=fixup_queue,
ignore_existing=ignore_existing,
countPurged=True)
# reattach the python reference
attr_ref.setAttribute(ref_vdata.data.object)
# reattach all outside refs to the current working copy
# XXX this is an implicit policy we can live with for now
for attr_ref in vdata.data.outside_refs:
va_ref = attr_ref.getAttribute()
cur_value = attr_ref.getAttribute(alternate=obj)
# If the attribute has been removed by a modifier, then we get
# None, move on to the next ref.
if va_ref is None:
continue
try:
ref = dereference(history_id=va_ref.history_id, zodb_hook=self)[0]
except (TypeError, AttributeError):
# get the attribute from the working copy
ref = cur_value
# If the object is not under version control just attach
# the current working copy if it exists and is not already
# in place
if ref is not None and aq_base(ref) is not aq_base(va_ref):
attr_ref.setAttribute(ref)
# feed the fixup queue defined in revert() and retrieve() to
# perform post-retrieve fixups on the object
if fixup_queue is not None:
fixup_queue.append(obj)
return vdata
def _recursiveRetrieve(self,
obj=None,
history_id=None,
selector=None,
preserve=(),
inplace=False,
source=None,
fixup_queue=None,
ignore_existing=False,
countPurged=True):
"""This is the real workhorse pulling objects out recursively.
"""
portal_archivist = getToolByName(self, 'portal_archivist')
portal_reffactories = getToolByName(self, 'portal_referencefactories')
if ignore_existing:
obj = None
else:
obj, history_id = dereference(obj, history_id, self)
hasBeenDeleted = obj is None
# CMF's invokeFactory needs the added object be traversable from
# itself to the root and from the root to the itself. This is the
# reason why it is necessary to replace the working copies current
# state with the one of the versions state retrieved. If the
# operation is not an inplace operation (retrieve instead of
# revert) this has to be reversed after having recursed into the
# tree.
if hasBeenDeleted:
# if the object to retreive doesn't have a counterpart in the tree
# build a new one before retrieving an old state
vdata = portal_archivist.retrieve(obj, history_id, selector,
preserve, countPurged)
repo_clone = vdata.data.object
obj = portal_reffactories.invokeFactory(repo_clone, source)
hasBeenMoved = False
else:
if source is None:
# #### the source has to be stored with the object at save time
# I(gregweb)'m pretty sure the whole source stuff here gets
# obsolete as soon as a va_ref to the source is stored also
# XXX for now let's stick with this:
source = aq_parent(aq_inner(obj))
# in the special case the object has been moved the retrieved
# object has to get a new history (it's like copying back back
# the object and then retrieve an old state)
hasBeenMoved = portal_reffactories.hasBeenMoved(obj, source)
if hasBeenMoved:
if getattr(aq_base(source), obj.getId(), None) is None:
vdata = portal_archivist.retrieve(obj, history_id, selector,
preserve, countPurged)
repo_clone = vdata.data.object
obj = portal_reffactories.invokeFactory(repo_clone, source)
else:
# What is the desired behavior
pass
vdata = portal_archivist.retrieve(obj, history_id, selector, preserve,
countPurged)
# Replace the objects attributes retaining identity.
_missing = object()
attrs_to_leave = vdata.attr_handling_references
for key, val in vdata.data.object.__dict__.items():
if key in attrs_to_leave:
continue
obj_val = getattr(aq_base(obj), key, _missing) # noqa
setattr(obj, key, val)
# Delete reference attributes.
for ref in vdata.refs_to_be_deleted:
ref.remove(permanent=inplace)
# retrieve all inside refs
for attr_ref in vdata.data.inside_refs:
# get the referenced working copy
# XXX if the working copy we're searching for was moved to
# somewhere else *outside* we generate an another object with
# the same history_id. Unfortunately we're not able to handle
# this correctly before multi location stuff is implemented.
# XXX Perhaps there is a need for a workaround!
va_ref = attr_ref.getAttribute()
if va_ref is None:
# a missing reference, the policy has changed,
# don't try to replace it
continue
history_id = va_ref.history_id
# retrieve the referenced version (always count purged versions
# also!)
ref_vdata = self._recursiveRetrieve(
history_id=history_id,
selector=va_ref.version_id,
preserve=(),
inplace=inplace,
source=obj,
fixup_queue=fixup_queue,
ignore_existing=ignore_existing,
countPurged=True)
# reattach the python reference
attr_ref.setAttribute(ref_vdata.data.object)
# reattach all outside refs to the current working copy
# XXX this is an implicit policy we can live with for now
for attr_ref in vdata.data.outside_refs:
va_ref = attr_ref.getAttribute()
cur_value = attr_ref.getAttribute(alternate=obj)
# If the attribute has been removed by a modifier, then we get
# None, move on to the next ref.
if va_ref is None:
continue
try:
ref = dereference(history_id=va_ref.history_id,
zodb_hook=self)[0]
except (TypeError, AttributeError):
# get the attribute from the working copy
ref = cur_value
# If the object is not under version control just attach
# the current working copy if it exists and is not already
# in place
if ref is not None and aq_base(ref) is not aq_base(va_ref):
attr_ref.setAttribute(ref)
# feed the fixup queue defined in revert() and retrieve() to
# perform post-retrieve fixups on the object
if fixup_queue is not None:
fixup_queue.append(obj)
return vdata
def isUpToDate(self, obj=None, history_id=None, selector=None):
obj = dereference(obj=obj, history_id=history_id, zodb_hook=self)[0]
mem = self.retrieve(obj=obj, history_id=history_id, selector=selector)
return mem.data.object.modified() == obj.modified()
