def delete(self, elem):
if elem.pk is None:
util.fail(
'ERROR 3942342: attempting to delete object that was never added'
)
return
else:
super().delete(elem)
def lookup(self, **parameters):
if len(parameters) != len(self.key_attributes):
return self.LOOKUP_NOT_SUPPORTED, None
try:
key = tuple([parameters[k] for k in self.key_attributes])
except KeyError:
return self.LOOKUP_NOT_SUPPORTED, None
if self._index[key]:
return self.VALUE_FOUND, self._index[key]
else:
if self.can_answer_authoritatively(**parameters):
return self.VALUE_DOES_NOT_EXIST, None
else:
return self.VALUE_UNKNOWN, None
util.fail('unreachable')
def lookup(self, **parameters):
util.fail('abstract')
def load_to_memory(self, object_ids, add_to_existing_cache=False):
util.fail('abstract')
def is_cacheable(self, elem):
util.fail('abstract')
def delete(self, change):
util.fail(
'ERROR 403242323: Entries can not be deleted from change log - instead add a DeleteOp()'
)