void WeightDataModel::writeToDisk()
{
if (QFile::exists(datafile.fileName())) {
- QFile::copy(datafile.fileName(), datafile.fileName()+".bak");
+ QString backupfile = datafile.fileName()+".bak";
+ if (QFile::exists(backupfile))
+ QFile::remove(backupfile);
+ QFile::copy(datafile.fileName(), backupfile);
}
if (datafile.open(QIODevice::WriteOnly | QIODevice::Text)) {
QTextStream stream(&datafile);