I use a QAbstractListItemModel which I want to have as a member of a class. In order to have it available in QML, I need to use setContextProperty.

QQmlContext *ctxt = view.rootContext();
    ctxt->setContextProperty("myModel", QVariant::fromValue(dataList));

However, I wonder what the best practice is for having the rootContext available in my class. Should I just give it as argument to the constructor? Or is it better to have a function which returns my model, so that I can set the context property in a place where I have the rootContext already (e.g. the main function or a gui handler function)?

Or does it make sense to make the rootContext a global variable?