Динамическое изменение Query() на форме

[Wamr]

makos,
в чем трудность?

PHP код:

void clicked()
{
    Query                   q;
    QueryBuildDataSource    qbDS;
    ;

    super();

    if(InventSum_ds.queryRun())
        q = InventSum_ds.queryRun().query();
    else
        q = InventSum_ds.query();

    qbDS = q.dataSourceTable(tableNum(InventTable));
    if(! qbDS)
    {
        qbDS = q.dataSourceTable(tableNum(InventSum));

        qbDS = qbDS.addDataSource(tableNum(InventTable));
        qbDS.fetchMode(QueryFetchMode::One2One);
        qbDS.joinMode(JoinMode::InnerJoin);
        qbDs.relations(true);

        qbDS = q.dataSourceTable(tableNum(InventDim));
        qbDS.fetchMode(QueryFetchMode::One2One);

        InventSum_ds.research();
    }
}