How to edit cell row in costume model which inherits from QSqlTableModel ?

[Ahti]

I want to edit a cell row but I am confused how to do it exactly here is my code:

usermodel.cpp:

bool UserModel::setData(const QModelIndex &index, const QVariant &value, int role){
    if (index.isValid() && role == Qt::EditRole){
        return QSqlTableModel::setData(index,value, role);
    }
    return false;
}

profile.qml:

TextField {
       id: phone
       text: "8989341"            
}
TextField {
       id: address
       text: "London"
}

ListView {
              id: view
              currentIndex: 0
              delegate: Text {
                      text: model.name
              } 
             model: UserModel {  id: user_model }            
}

Button {
       id: save_btn
       text: "save"
       background: Rectangle {
               border.color: "silver"
               border.width: 2
                radius: 10
        }
        onClicked: {
                 user_model.setData(user_model.index(1, 2), address.text)
                 user_model.setData(user_model.index(2, 3), phone.text)
        }
}

table schema:

users(u_id int primary key, name varchar, address varchar, phone int)

The above code does not save the edited data.

[JonB]

@Ahti
Dunno, but why don't you start by showing us/yourself the return values of the calls to user_model.setData(user_model.index(...?

What's the result for you of: https://doc.qt.io/qt-5/qsqltablemodel.html#editStrategy ?