setWaterLine method
Implementation
Future<void> setWaterLine(SchemaMetaData lSmdSys, DbTransaction ltr) async {
if (!has_init) throw ArgumentError(AbstractDao.C_MUST_INIT);
waterLineDao = WaterLineDao.sep(lSmdSys, ltr);
await waterLineDao.init();
waterLine = WaterLine(waterLineDao, lSmdSys, ltr);
}