def __iadd__(self, other):
# We must wrap each element in a weak ref
# Note that the builtin list only accepts other lists,
# but the UserList from which we are descended accepts
# any iterable.
result = super(PersistentExternalizableWeakList, self).__iadd__(
[self.__wrap(PWeakRef(o)) for o in other])
return result
def test_to_externalOID(self):
class P(Persistent):
def toExternalOID(self, **_kwargs):
return b'abc'
wref = PWeakRef(P())
assert_that(wref.toExternalOID(), is_(b'abc'))
def test_to_externalObject(self):
class P(Persistent):
def toExternalObject(self, **_kwargs):
return {'a': 42}
wref = PWeakRef(P())
assert_that(wref.toExternalObject(), is_({'a': 42}))
def index(self, item, *args):
return super(PersistentExternalizableWeakList,
self).index(self.__wrap(PWeakRef(item)), *args)
def count(self, item):
return super(PersistentExternalizableWeakList,
self).count(self.__wrap(PWeakRef(item)))
def insert(self, i, item):
super(PersistentExternalizableWeakList,
self).insert(i, self.__wrap(PWeakRef(item)))
def append(self, item):
super(PersistentExternalizableWeakList,
self).append(self.__wrap(PWeakRef(item)))
def __setitem__(self, i, item):
super(PersistentExternalizableWeakList,
self).__setitem__(i, self.__wrap(PWeakRef(item)))
def remove(self, item):
super(PersistentExternalizableWeakList,
self).remove(self.__wrap(PWeakRef(item)))
def __wrap(self, obj):
return obj if isinstance(obj, PWeakRef) else PWeakRef(obj)