[Interest] InsertRecord/SQLite bug?

[Guido Seifert]

Hi,
I discovered that some ancient code stopped working. Don't know when this actually happened. Maybe when I ported it from qt4 to qt5
ages ago. 

The problem:

I have a sqlite table:

CREATE TABLE IF NOT EXISTS searchdir(
        selected  INT DEFAULT 0, 
        directory TEXT NOT NULL UNIQUE
);

I have code, which is supposed to enter data:

void SearchFolderSelectionForm::addSlt(void){
	QString dir = QFileDialog::getExistingDirectory(this,tr("Add search Folder"), 
	tr("Add search folder"));
	QSqlRecord record;
	{
		QSqlField field("directory",QVariant::String);
		field.setValue(dir);
		record.append(field);
	}
	{
		QSqlField field("selected",QVariant::Int);
		field.setValue(0);
		record.append(field);
	}
	if(!_searchDirModel->insertRecord(0,record)){
		qDebug() << _searchDirModel->lastError();
	}
}

I get an error:
QSqlError("", "No Fields to update", "")

Strange thing is, I can add data manually into this table. But if I then execute above function,
the data is not inserted, but row 0 is deleted from the db.

Anyone an idea? Above code definitely worked once.

Guido