Question

How to insert new record to QSqlTableModel with respect to default values of DB?
UPD:
I am trying to call pTableModel->insertRecord(0, pTableModel->record(0));
or pTableModel->insertRecord(0, pTableModel->record());
or pTableModel->insertRecord(QSqlDatabase::database().record("tableName"));
or pTableModel->insertRow(0);

Result the same, all fields are NULL instead of default values of DB.

Answer 1

The fact that you’re inserting at row 0 may be an issue. When I’ve tried doing that, I don’t get the record I expect when I later ask for the record at row 1 (which is where the inserted record should be after a call of insertRecord(0, ...)). Also, are you calling pTableModel->submit() or pTableModel->submitAll()? If not, your record never gets committed to the database.

This code works for me:

QSqlRecord  rec( pTableModel->record() );

// Insert at end of table
pTableModel->insertRecord( -1, rec );
pTableModel->submitAll(); 
// Or, pTableModel->submit(), depending on the model's edit strategy

// Grab the last row.  It should be the one just inserted.
QSqlRecord  writtenRec( pTableModel->record( pTableModel->rowCount() - 1 ) );