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How do you do this:

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boost::any_cast<IxModel*>(
            QxClassX::create(QStringLiteral("mv::%1_model").arg(model->getClass()->getKey())));


The object gets created, but it cannot get cast to IxModel.
The line will not work, because the model is of a type derived from IxModel, however boost::any_cast will only cast to the actual class, not a parent class.

I can use:

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qobject_cast<IxModel*>(model->cloneModel());


And then clean it up and do what I want, but should it not be possible to create a new object somehow?

Edit:

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ixm2->clear();
ixm2->setParentModel(Q_NULLPTR);
ixm2->qxFetchAll();


This is how I try resetting it, however even though it contains the items that it should, this model has issues. E.g. when I create a nested model from it, and add an item to that nested model, and try

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ixm2->qxSaveRow(row, "the nesting relation");


the relation does not get saved. Trying the same thing with a model created with "new" works as intended.
So now the question is even more relevant.

FIXED.
Just used

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IxModel* ix = qx::create_nude_ptr<IxModel>("MyModel");


and it works like a charm. Beware the possible memLeak

FIXED.

Great !