def __rollback(self, state):
source_entity = state.entity
ent_cls = type(source_entity)
status = state.status
if status != ENTITY_STATUS.CLEAN:
mongo_coll = self.__get_mongo_collection(ent_cls)
ent_oid = getattr(source_entity, '_id')
if status == ENTITY_STATUS.NEW:
mongo_coll.remove(ent_oid)
if __debug__:
self.__logger.debug("Rollback INSERT entity OID %s."
% ent_oid)
else:
if status == ENTITY_STATUS.DELETED:
data = transform_incoming(ent_cls, source_entity)
mongo_coll.insert(data)
if __debug__:
self.__logger.debug('Rollback REMOVE entity OID %s: '
'%s.' % (ent_oid, data.items()))
else:
assert status == ENTITY_STATUS.DIRTY
EntityState.set_state_data(source_entity,
state.clean_data)
data = transform_incoming(ent_cls, source_entity)
mongo_coll.update({'_id':ent_oid}, data)
if __debug__:
self.__logger.debug('Rollback UPDATE entity OID %s: '
'%s.' % (ent_oid, data.items()))
def __persist(self, state):
source_entity = state.entity
ent_cls = type(source_entity)
status = state.status
if status != ENTITY_STATUS.CLEAN:
mongo_coll = self.__get_mongo_collection(ent_cls)
ent_id = source_entity.id
ent_oid = getattr(source_entity, '_id')
if ent_id is None or ent_oid is None:
raise ValueError('Can not persist entity with ID value set '
'to None.')
if status == ENTITY_STATUS.DELETED:
mongo_coll.remove(ent_oid)
if __debug__:
self.__logger.debug("REMOVEd entity OID %s." % ent_oid)
else:
data = transform_incoming(ent_cls, source_entity)
if status == ENTITY_STATUS.NEW:
mongo_coll.insert(data)
if __debug__:
self.__logger.debug('INSERTed entity OID %s: %s.'
% (ent_oid, data.items()))
else:
assert status == ENTITY_STATUS.DIRTY
mongo_coll.update({'_id':ent_oid}, data)
if __debug__:
self.__logger.debug('UPDATEed entity OID %s: %s.'
% (ent_oid, data.items()))