[SailfishDevel] Getting odd error when attempting to use LocalStorage.changeVersion

[Rob Hoelz]

On Sat, 15 Feb 2014 17:42:15 +0100
Rob Hoelz <rob at hoelz.ro> wrote:

> On Sat, 15 Feb 2014 01:47:52 +0100
> Rob Hoelz <rob at hoelz.ro> wrote:
> 
> > Hi all,
> > 
> > I'm working on an update for my Sudoku application, and one of the
> > new features necessitates a storage schema change.  So I wrote a
> > utility function that tries to open a connection with the correct
> > version, and falls back to calling db.changeVersion if there is a
> > version mismatch. After testing my new code out, I get the
> > following output from my application:
> > 
> > [nemo at jolla Databases]$ harbour-sudoku 
> > [D] QWaylandEglIntegration::QWaylandEglIntegration:58 - Using
> > Wayland-EGL [W] QQmlImportDatabase::importPlugin:1697 - Module
> > 'Sailfish.Silica' does not contain a module identifier directive -
> > it cannot be protected from external registrations. [D]
> > MLocalThemeDaemonClient::MLocalThemeDaemonClient:81 -
> > MLocalThemeDaemonClient::MLocalThemeDaemonClient(const
> > QString&,QObject*) Theme:  "jolla-ambient" [D]
> > MLocalThemeDaemonClient::MLocalThemeDaemonClient:112 -
> > LocalThemeDaemonClient: Looking for assets in
> > ("/usr/share/themes/blanco/meegotouch",
> > "/usr/share/themes/jolla-ambient/meegotouch") [W]
> > QSqlDatabasePrivate::database:280 - QSqlDatabasePrivate::database:
> > unable to open database: " " QSqlQuery::prepare: database not open
> > DeclarativeCoverWindow: I have a default alpha buffer [W]
> > QSqlDatabasePrivate::database:280 - QSqlDatabasePrivate::database:
> > unable to open database: " " [W] QSqlDatabasePrivate::database:280 -
> > QSqlDatabasePrivate::database: unable to open database: " "
> > QSqlQuery::prepare: database not open
> > 
> > Here's the code for the routine in question:
> > https://github.com/hoelzro/harbour-sudoku/blob/db-upgrade/qml/pages/SudokuBoard.qml#L126
> > 
> > It looks to me like once LocalStorage attempts to open a database
> > and fails, it doesn't actually open databases in the future, but I
> > could be misunderstanding something.
> > 
> > If anyone could help, I'd really appreciate it.
> > 
> > Thanks,
> > Rob
> > _______________________________________________
> > SailfishOS.org Devel mailing list
> > 
> 
> This seems to be a generic Qt issue; I've started a thread here:
> 
> http://qt-project.org/forums/viewthread/38458/
> 
> -Rob
> _______________________________________________
> SailfishOS.org Devel mailing list
> 

I found a solution to my issue and posted it on the forum thread I
listed above.

-Rob