Advise:Do I need QDataWidgetMapper?

[fatecasino]

I want a table view with 2 columns:

• one simple cell
• one qcombobox

I set up the QCombobox delegate and two different views just to be sure that the database gets the values the user inserts.

The user inserts a string in the empty cell and a value from the combobox.
Then he pushes the addNewRow button to insert a new record.

I am about to create a button which is going to send the database values (that the user inserted) into a txt file.

My question is,
Do I need to implement a QDataWidgetMapper?

MyDialog::MyDialog(QWidget *parent)
    : QWidget(parent)
{
 
    model = new QStandardItemModel(1, 2);
    tableView = new QTableView(this);
    tableView->setModel(model);
 
    delegate = new ComboBoxDelegate;
    tableView->setItemDelegateForColumn(1,delegate);
 
 
    view2 = new QTableView(this);
    view2->setModel(model);
    view2->setItemDelegateForColumn(1,delegate);
 
    for ( int i = 0; i < model->rowCount(); ++i )
        tableView->openPersistentEditor( model->index(i, 1, QModelIndex()) );
 
    QLineEdit* le = new QLineEdit();
 
    QPushButton *newRowBtn =  new QPushButton;
    newRowBtn->setText("add new row");
    connect(newRowBtn,SIGNAL(clicked()),this,SLOT(addNewRow()));
 
 
    vboxlayout = new QVBoxLayout(this);
    vboxlayout->addWidget(tableView);
    vboxlayout->addWidget(view2);
    vboxlayout->addWidget(new QLabel("Vorgang2"));
    vboxlayout->addWidget(le);
    vboxlayout->addWidget(newRowBtn);
    setLayout(vboxlayout);
}
 
 
 
void  MyDialog::addNewRow()
{
 
    QModelIndex index;
    int row = model->rowCount();
    model->insertRow(row);
    index = model->index(row, 0);
    tableView->setCurrentIndex(index);
    tableView->edit(index);
    tableView->openPersistentEditor( model->index(row, 1, QModelIndex()) );
 
}

MyDialog::MyDialog(QWidget *parent)
    : QWidget(parent)
{

    model = new QStandardItemModel(1, 2);
    tableView = new QTableView(this);
    tableView->setModel(model);

    delegate = new ComboBoxDelegate;
    tableView->setItemDelegateForColumn(1,delegate);


    view2 = new QTableView(this);
    view2->setModel(model);
    view2->setItemDelegateForColumn(1,delegate);

    for ( int i = 0; i < model->rowCount(); ++i )
        tableView->openPersistentEditor( model->index(i, 1, QModelIndex()) );

    QLineEdit* le = new QLineEdit();

    QPushButton *newRowBtn =  new QPushButton;
    newRowBtn->setText("add new row");
    connect(newRowBtn,SIGNAL(clicked()),this,SLOT(addNewRow()));


    vboxlayout = new QVBoxLayout(this);
    vboxlayout->addWidget(tableView);
    vboxlayout->addWidget(view2);
    vboxlayout->addWidget(new QLabel("Vorgang2"));
    vboxlayout->addWidget(le);
    vboxlayout->addWidget(newRowBtn);
    setLayout(vboxlayout);
}



void  MyDialog::addNewRow()
{

    QModelIndex index;
    int row = model->rowCount();
    model->insertRow(row);
    index = model->index(row, 0);
    tableView->setCurrentIndex(index);
    tableView->edit(index);
    tableView->openPersistentEditor( model->index(row, 1, QModelIndex()) );

}

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[wysota]

No, you don't.