ListView model binding to QAbstractListModel

[michalk]

I am unable to make my class derived from QAbstractListModel working with qml ListView.

Situation looks like this:

I have created ButtonMenu QML element:

Rectangle {
id: menuRoot
...
property Component model
...

Rectangle {
id: menuRoot
...
property Component model
...

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In this element I have another one and in this another one I have ListView element

Rectangle {
        id: menu
        ...
        ListView {
            id: menuList
            ...
            model: menuRoot.model;
            ...

Rectangle {
        id: menu
        ...
        ListView {
            id: menuList
            ...
            model: menuRoot.model;
            ...

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Now when I create ButtonMenu element I have something like this:

ButtonMenu {
           id: buttonMenu
           ...
           model: menuMainViewArea
           ...

ButtonMenu {
           id: buttonMenu
           ...
           model: menuMainViewArea
           ...

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In C++ I do this:

ctxt->setContextProperty("menuMainViewArea",engine.getMenuMainViewArea());

ctxt->setContextProperty("menuMainViewArea",engine.getMenuMainViewArea());

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When I run my program i get following error:
Error: Cannot assign QObject* to QDeclarativeComponent*

I tried to make model in menuRoot an alias to menuList model but when I called model.count when setting size of all rectangles I got model.count undefined.

Does anyone know what can be wrong??