Den 24-05-2013 05:45, Constantin Makshin skrev: > http://qt-project.org/doc/qt-4.8/qsqlquery.html#QSqlQuery-2 says the > constructor you used executes the query passed to it. > > http://qt-project.org/doc/qt-4.8/qsqlquery.html#bindValue says it's > meant to be used with prepared queries. > > So my opinion is that the fact that the code you used in Qt 4 worked is > purely a coincidence showing unintended/undocumented behavior.
That still means there's a bug. Either his first code shouldn't compile, or it should work. That it compiles and runs but fails seems like the worst possible. Guido, I think you should open a bug report on this one. Bo. > On May 23, 2013 1:31 AM, "Guido Seifert" <warg...@gmx.de > <mailto:warg...@gmx.de>> wrote: > > > I am wondering. > I have a program, which runs perfectly fine with Qt 4.8. > In dozens of places I do: > QString queryString = "SOME SQL STATEMENT with :foo;"; > QSqlQuery query(queryString, database); > query.bindValue(":foo", xxxxxx); > query.exec(); > > Now I tried to compile the program with Qt 5.1. Compiles fine, > but the database stuff is totally broken. Above value binding > does not seem to work anymore. > > Now I have to do: > QString queryString = "SOME SQL STATEMENT with :foo;"; > QSqlQuery query(database); > query.prepare(queryString); > query.bindValue(":foo", xxxxxx); > query.exec(); > > > Not too difficult to change, but WHY? > > Guido > > > -- > Guido Seifert <warg...@gmx.de <mailto:warg...@gmx.de>> > _______________________________________________ > Interest mailing list > Interest@qt-project.org <mailto:Interest@qt-project.org> > http://lists.qt-project.org/mailman/listinfo/interest > > > > _______________________________________________ > Interest mailing list > Interest@qt-project.org > http://lists.qt-project.org/mailman/listinfo/interest > -- Bo Thorsen, European Qt Manager, Integrated Computer Solutions ICS - Delivering World-Class Applications for Embedded & Mobile Devices http://ics.com/services _______________________________________________ Interest mailing list Interest@qt-project.org http://lists.qt-project.org/mailman/listinfo/interest
