Проблемы с повторной фильтрацией DS

[Borisov Nikolai]

PHP код:

public boolean modified()
{
    boolean ret;

    QueryBuildDataSource    qbds;
    QueryBuildRange         posted;
    ;

    ret = super();

    qbds = PurchTable_DS.query().dataSourceTable(tableNum(PurchLine));

    if (! qbds)
        qbds = PurchTable_DS.query().dataSourceNo(1).addDataSource(tableNum(PurchLine));

    if (this.value())
    {
        posted = qbds.addRange(fieldNum(PurchLine, RemainPurchPhysical));
        qbds.addLink(fieldNum(PurchLine, PurchId), fieldNum(PurchTable, PurchId));
        qbds.joinMode(JoinMode::EXISTSJOIN);
    }
    else
    {
        qbds.clearLinks();
        qbds.clearRanges();
    }

    Info(PurchTable_DS.query().dataSourceNo(1).tostring());

    return ret;
}