Merge branch '0.2' of https://git.archgrid.xyz/free-lancers/electricity_bill_calc_service into 0.2

repository/meter.go

@@ -524,6 +524,9 @@ func (mr _MeterRepository) ListPooledMeterRelationsByCodes(pid string, codes []s
 	defer cancel()
 
 	var relations []*model.MeterRelation
+	if len(codes) <= 0 {
+		return relations, nil
+	}
 	relationsSql, relationsArgs, _ := mr.ds.
 		From(goqu.T("meter_relations").As("r")).
 		Select("r.*").