QVariant TaskListModel::data(const QModelIndex& index, int role) const
{
    if (role == NameRole) {
        return QSqlTableModel::data(this->index(index.row(), fieldIndex("name")));
    }
    if (role == DueTimeRole) {
        return getDueDate(index.row());
    }
    if (role == DueColorRole) {
        return getDueColor(index.row());
    }
    if (role == PendingRole) {
        return isPending(index.row());
    }
    if (role == DoneRole) {
        return isDone(index.row());
    }
    return QVariant();
}