Populate QTreeView from database

[yagabey]

Hi,

I am trying to fill a Treeview from a database source. I need to be able to manipulate treeview items and sync this with database. As far as i can understand , best (but not easiest) way is to use QAbstractProxyModel and implement maptoSource and mapfromSource functions. But i couldnt find a single example for doing this on a treeview.

A starting point:

QModelIndex TagChannelTreeModel::mapFromSource(const QModelIndex &sourceIndex) const
{
    // root
    if (!sourceIndex.isValid())
        return QModelIndex();
 
    //what to do here
    int col = sourceIndex.column();
 
    return createIndex(sourceIndex.row() , sourceIndex.column());
}

QModelIndex TagChannelTreeModel::mapFromSource(const QModelIndex &sourceIndex) const
{
    // root
    if (!sourceIndex.isValid())
        return QModelIndex();

    //what to do here
    int col = sourceIndex.column();

    return createIndex(sourceIndex.row() , sourceIndex.column());
}

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Here what should i do if column is other than "0"(Top level item) and i want to add this index as a child to parent(column 0 item) ? A small snippet would be appreciated :-)

Thanks in advance...