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  1. Qt
  2. QTBUG-115316

AppMan: Let IntentModel and ApplicationModel support multiple layers of filtering/sorting

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      Currently, this code behaves as expected:

      IntentModel {
    id: im1
    sourceModel: IntentServer
    sortFunction: function(li, ri) { return li.name < ri.name }
}

IntentModel {
    id: im2
    sourceModel: im1
}

Repeater {
    model: im2
    ...
}

       

      However, it breaks if we add actual filtering/sorting to both IntentModels. This is because the current implementation of IntentModel assumes that its source is always IntentServer::instance():

      int IntentModel::indexOfIntent(Intent *intent)
{
    int idx = IntentServer::instance()->indexOfIntent(intent);
    return idx != -1 ? mapFromSource(idx) : idx;
}

       

      It should work if we remove that assumption:

      int IntentModel::indexOfIntent(Intent *intent)
{
    int idx = -1;
    if (auto src = qobject_cast<IntentServer*>(sourceModel()) // Most likely
        idx = src->indexOfIntent(intent);
    else if (auto src = qobject_cast<IntentModel*>(sourceModel()) // Less likely
        idx = src->indexOfIntent(intent);
    return idx != -1 ? mapFromSource(idx) : idx;
}

       

      Notes
      The QML tools currently don't recognize the IntentModel.sourceModel property, so that ought to be addressed too (see QTBUG-114755 )

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            rgriebl Robert Griebl
            skoh-qt Sze Howe Koh
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              Created:
              Updated:
              Resolved:

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