def delete_batch(key_slice):
entities = datastore.Get(key_slice)
#FIXME: We need to make sure the entity still matches the query!
# entities = (x for x in entities if utils.entity_matches_query(x, self.select.gae_query))
to_delete = []
to_update = []
updated_keys = []
# Go through the entities
for entity in entities:
if entity is None:
continue
wipe_polymodel_from_entity(entity, self.table_to_delete)
if not entity.get('class'):
to_delete.append(entity)
constraints.release(self.model, entity)
else:
to_update.append(entity)
updated_keys.append(entity.key())
datastore.DeleteAsync([x.key() for x in to_delete])
datastore.PutAsync(to_update)
caching.remove_entities_from_cache_by_key(updated_keys,
self.namespace)
return len(updated_keys)
def DeleteAsync(keys, **kwargs): """ Asynchronously deletes one or more entities from the data store. This function is identical to :func:`server.db.Delete`, except that it returns an asynchronous object. Call ``get_result()`` on the return value to block on the call and get the results. """ if conf["viur.db.caching" ]>0: if isinstance( keys, datastore_types.Key ): #Just one: memcache.delete( str( keys ), namespace=__CacheKeyPrefix__, seconds=__cacheLockTime__ ) elif isinstance( keys, list ): for key in keys: assert isinstance( key, datastore_types.Key ) or isinstance( key, basestring ) memcache.delete( str( key ), namespace=__CacheKeyPrefix__, seconds=__cacheLockTime__ ) return( datastore.DeleteAsync( keys, **kwargs ) )
