QAbstractTableModel's header not translated

[Prototyp144]

Hello there,

i've got a problem with an inherited class on base of QAbstractTableModel. The headers are defined like this:

const QVariant ArticleTableModel::header_names[] = {
   tr("ID"),
    tr("Name"),
    tr("Category"),
    tr("Unit"),
    tr("Amount"),
    tr("Prize"),
    tr("Tax"),
    tr("Information")
};

const QVariant ArticleTableModel::header_names[] = {
   tr("ID"),
    tr("Name"),
    tr("Category"),
    tr("Unit"),
    tr("Amount"),
    tr("Prize"),
    tr("Tax"),
    tr("Information")
};

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and called like this

QVariant ArticleTableModel::headerData(int section, Qt::Orientation orientation, int role) const
{
    if (role == Qt::DisplayRole && orientation == Qt::Horizontal)
        return header_names[section];
    return QVariant();
}

QVariant ArticleTableModel::headerData(int section, Qt::Orientation orientation, int role) const
{
    if (role == Qt::DisplayRole && orientation == Qt::Horizontal)
        return header_names[section];
    return QVariant();
}

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Like mentioned above, the strings are not translated correctly, although all values are translated in a language file, which is loaded fine, becaus all other parts are translated right. Only the headers of all of my inherited classes of QAbstractTableModel are _not_ translated.