Get data from a QTableView

[graciano]

Hi,

When using a model/view aproach i do ...

view->edit(index);

view->edit(index);

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... changes will not make efect until i press "Return" or, if i want i can quit with Esc. Right?

Now suppose i have columns A, B, and C, where A is a Primary key in the database associated with the model.
I intend to validate that key with a beforeInsert SIGNAL.

Until here it's ok but ... now for the stupid question ... how do i get the value from column A in the row i'm editing?!

Thanks

[nikhilqt]

Check this SIGNAL.. void dataChanged ( const QModelIndex & topLeft, const QModelIndex & bottomRight )

[aamer4yu]

QAbstractItemModel::data

[graciano]

Not 100% elegant ... but it works like this!

void CidadaoDialog::antesDeInserirCidadao(QSqlRecord &registo)
{
    QSqlQuery query;
    QString comando;
    int lin, col;
    QVariant conteudoDaChave;
    lin = vistaCidadao->currentIndex().row();
    col = 0;
    conteudoDaChave = modeloCidadao->index(lin, col, QModelIndex()).data(Qt::EditRole);
    comando = "SELECT * FROM Cidadao WHERE idCidadao = " + conteudoDaChave.toString()+";";
    query.prepare(comando);
    query.exec();
    if(query.next())
    {
        QMessageBox msg;
        msg.setText("Chave duplicada(duplicate key)!");
        msg.setInformativeText(query.lastQuery());
        msg.exec();
        modeloCidadao->select();
    }
}

void CidadaoDialog::antesDeInserirCidadao(QSqlRecord &registo)
{
    QSqlQuery query;
    QString comando;
    int lin, col;
    QVariant conteudoDaChave;
    lin = vistaCidadao->currentIndex().row();
    col = 0;
    conteudoDaChave = modeloCidadao->index(lin, col, QModelIndex()).data(Qt::EditRole);
    comando = "SELECT * FROM Cidadao WHERE idCidadao = " + conteudoDaChave.toString()+";";
    query.prepare(comando);
    query.exec();
    if(query.next())
    {
        QMessageBox msg;
        msg.setText("Chave duplicada(duplicate key)!");
        msg.setInformativeText(query.lastQuery());
        msg.exec();
        modeloCidadao->select();
    }
}

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What i was looking for is in line 9.

Thanks