How to get value from everywhere

[wirasto]

I'm so impressed with QSqlDatabase. If I set like this..



QSqlDatabase db=QSqlDatabase::addDatabase(...);
db.setHostName("abc");


I can get value "abc" in everywhere with



qDebug() << QSqlDatabase::database().hostName()


How to create like that...?

[spirit]

if you specified the name for connection in QSqlDatabase::addDatabase then you should use this name when using QSqlDatabase::database.

[Lykurg]

I think you are looking for a Singleton pattern (http://wiki.qtcentre.org/index.php?title=Singleton_pattern).