async def save_instances(
instances: Iterable[DeclarativeMeta], *,
cls: DeclarativeMeta,
connection: ConnectionType,
is_mysql: bool) -> List[int]:
columns_names = list(cls.columns_fields_names())
primary_key = await get_primary_key(table=cls.__table__)
primary_key_column_index = columns_names.index(primary_key)
columns_names.pop(primary_key_column_index)
unique_columns_names = await get_unique_columns_names(cls.__table__)
returning_columns_names = [primary_key]
def record_without_id(instance: DeclarativeMeta
) -> RecordType:
res = list(instance.record)
res.pop(primary_key_column_index)
return tuple(res)
records = map(record_without_id, instances)
resp = await insert_returning(
table_name=cls.__tablename__,
columns_names=columns_names,
unique_columns_names=unique_columns_names,
returning_columns_names=returning_columns_names,
records=records,
merge=True,
connection=connection,
is_mysql=is_mysql)
return [row[0] for row in resp]
