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List:       kde-games-devel
Subject:    Re: [Kde-games-devel] Data migration issue
From:       Mathias Kraus <k.hias () gmx ! de>
Date:       2015-03-02 21:05:09
Message-ID: 2151453.gCbRaBGXZz () io
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Am Sonntag, 1. März 2015, 23:59:51 schrieb Albert Astals Cid:
> El Diumenge, 1 de març de 2015, a les 23:46:24, Mathias Kraus va escriure:
> > Am Montag, 2. März 2015, 09:00:07 schrieb Ian Wadham:
> > > Hi Mathias,
> > > 
> > > On 02/03/2015, at 5:24 AM, Mathias Kraus wrote:
> > > > I just tested the data migration of some games and noticed, that they
> > > > have the same problem like granatier when QCoreApplication is created
> > > > before the migration. The migrated config is not used at the first
> > > > application run, but the default settings. If a user then changes a
> > > > setting, the migrated settings will be lost.
> > > > 
> > > > While this is just a minor problem, because the settings can be changed
> > > > again and it only happens if the user changes the setting at the first
> > > > run of the application,> 
> > > I would say that most users would start changing settings if they find
> > > their settings are gone.
> > > 
> > > > there is another problem. The migrated high scores are also not used.
> > > > This means, if a user plays a game and wins, the old high scores are
> > > > also lost.> 
> > > Also, other data files, such as the user's entire jigsaw puzzle collection
> > > in Palapeli, the saved solution-state of each puzzle, the saved state of
> > > a cube in Kubrick and any games or levels in KGoldrunner that are being
> > > composed or edited by the user --- to name a few.
> > > 
> > > > I think this is a big problem
> > > 
> > > Yes, it is a really serious problem, IMHO.
> > > 
> > > > and would suggest, to move the creation of QCoreApplication below the
> > > > migration.> 
> > > Hope that works in all cases.  Well spotted, Mathias!
> > 
> > I assume QCoreApplication looks for the rc file and if it doesn't find one,
> > it uses the default settings. As the migration is after the creation of the
> > QCoreApplication, there is no rc file to use.
> > 
> > Could someone confirm my assumption?
> 
> No, QCoreApplication doesn't know anything about rc files, it has to be 
> something else; i'm not saying the migration being done after/before 
> QCoreApplication is not the trigger, i'm just saying that your theory can't be 
> the reason.
> 
> Also it'd probably make sense for you to involve the kde-frameworks mailing 
> list, more knowledgeable people about kconfig & friends live there.

Could someone try to reproduce this bevaviour? Just in case it's something with my \
configuration. You can for example start the kdelibs4 version of kmines, change the \
custom game settings, then start the kf5 based version and check if the settings are \
the same as from the kdelibs4 version.

> Cheers,
> Albert
> 
> > 
> > > Cheers, Ian W.
> > > 
> > > _______________________________________________
> > > kde-games-devel mailing list
> > > kde-games-devel@kde.org
> > > https://mail.kde.org/mailman/listinfo/kde-games-devel
> > 
> > _______________________________________________
> > kde-games-devel mailing list
> > kde-games-devel@kde.org
> > https://mail.kde.org/mailman/listinfo/kde-games-devel
> 
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