Wt

1/ Set up the Wt::Dbo::QueryModel using a select statement

2/ Add relevant column

3/ Set up the tableview using the previously set QueryModel.

4/ Connect the tableview's selectionChanged() signal to a custom handler.

5/ In the custom handler, retrieve the selected items using selectedIndexes()

This works fine as long as the QueyModel is no updated.

If I update the query in the QueyModel, using setQuery():

1/ selectedIndexes signal is fired

2/ the selectedIndexes() call crashes (_selectionModel does not seem to be valid)

5315 Process terminating with default action of signal 11 (SIGSEGV)

5315 Access not within mapped region at address 0x110

5315 at 0x597A10D: Wt::WAbstractItemView::selectedIndexes() const (WAbstractItemView.C:925)

5315 by 0x449DB1: AudioDatabaseWidget::handleArtistOrReleaseSelected() (AudioDatabaseWidget.cpp:213)

5315 by 0x4609C1: boost::signals2::detail::signal_impl<void (Wt::NoClass, Wt::NoClass, Wt::NoClass, Wt::NoClass, Wt::NoClass, Wt::NoClass), boost::signals2::optional_last_value, int, std::less, boost::function<void (Wt::NoClass, Wt::NoClass, Wt::NoClass, Wt::NoClass, Wt::NoClass, Wt::NoClass)>, boost::function<void (boost::signals2::connection const&, Wt::NoClass, Wt::NoClass, Wt::NoClass, Wt::NoClass, Wt::NoClass, Wt::NoClass)>, boost::signals2::mutex>::operator()(Wt::NoClass, Wt::NoClass, Wt::NoClass, Wt::NoClass, Wt::NoClass, Wt::NoClass) (function_template.hpp:767)

5315 by 0x597E8C7: Wt::Signal<Wt::NoClass, Wt::NoClass, Wt::NoClass, Wt::NoClass, Wt::NoClass, Wt::NoClass>::emit(Wt::NoClass, Wt::NoClass, Wt::NoClass, Wt::NoClass, Wt::NoClass, Wt::NoClass) const [clone .isra.790] (signal_template.hpp:695)

5315 by 0x597EDBF: Wt::WAbstractItemView::handleClick(Wt::WModelIndex const&, Wt::WMouseEvent const&) (WAbstractItemView.C:1272)

5315 by 0x5B18251: Wt::WTableView::handleSingleClick(bool, Wt::WMouseEvent const&) (WTableView.C:1514)

5315 by 0x5A1825A: boost::signals2::detail::signal_impl<void (Wt::WMouseEvent), boost::signals2::optional_last_value, int, std::less, boost::function<void (Wt::WMouseEvent)>, boost::function<void (boost::signals2::connection const&, Wt::WMouseEvent)>, boost::signals2::mutex>::operator()(Wt::WMouseEvent) (function_template.hpp:767)

5315 by 0x5B7190E: Wt::EventSignalWt::WMouseEvent::processDynamic(Wt::JavaScriptEvent const&) (signal_template.hpp:695)

5315 by 0x5C68FC5: Wt::WebSession::processSignal(Wt::EventSignalBase*, std::string const&, Wt::WebRequest const&, Wt::WebSession::SignalKind) (WebSession.C:2625)

5315 by 0x5C6F987: Wt::WebSession::notifySignal(Wt::WEvent const&) (WebSession.C:2599)

5315 by 0x5C722B4: Wt::WebSession::notify(Wt::WEvent const&) (WebSession.C:2160)

5315 by 0x5C6CD0C: Wt::WebSession::handleRequest(Wt::WebSession::Handler&) (WebSession.C:1509)

5315 If you believe this happened as a result of a stack

5315 overflow in your program's main thread (unlikely but