writeHistoricalChanges method
Implementation
@override
Future<TrDto?> writeHistoricalChanges(int ts, int? user_ts) async {
if (!initialized) throw ArgumentError(AbstractDao.C_MUST_INIT);
TrDto lTrDto = TrDto.wee(trDto.table_id);
lTrDto.ts = ts;
lTrDto.user_ts = user_ts;
RawRowData rawRowData =
await tableTransactionTrDao.upsertTR(lTrDto, trDto, WhereData());
return TrDto.field(rawRowData.getFieldData());
}