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  1. Qt
  2. QTBUG-120499

[REG 6.5.3 - 6.6.1] QML warning "Final member modelData is overridden in class QQmlDMAbstractItemModelData. The override won't be used."

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    • 72c8d39da (dev), c12a90d3e (6.7), 2f57794e5 (6.6), 7b4221002 (dev), ad2d5908f (6.7)

      Started to notice new Qt warning at application start after updating from Qt 6.5.3 to 6.6.1.

      Final member modelData is overridden in class QQmlDMAbstractItemModelData. The override won't be used.

      Here is simple reproducer ModelWarning.zip 

      import QtQuick
import ModelWarning

Window {
    width: 640
    height: 480
    visible: true

    ListView {
        anchors.fill: parent
        model: TestModel {}
        delegate: Rectangle {
            required property string modelData

            width: ListView.view.width
            height: 30
            Text {
                anchors.centerIn: parent
                text: modelData
            }
        }
    }
}

      Pay attention on the custom C++ model - TestModel, which provides 2 roles to QML, and one of them is "modelData"

      QHash<int, QByteArray> TestModel::roleNames() const
{
    return {
        { SomeRole1, "modelData" },
        { SomeRole2, "someRole" }
    };
}

      Previously this was not a problem, but since Qt 6.6.x it provokes the warning.

        1. ModelWarning.zip
          2 kB
          Vladimir Belyavsky
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            ulherman Ulf Hermann
            studiosus Vladimir Belyavsky
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              Created:
              Updated:
              Resolved:

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