How to notify QTableView of a modified CustomModel

[bmhautz]

I think it was a great thing that you mentioned it! I didn't even know it existed until I looked at the recent Qt documentation for 4.6.x. I'm currently using 4.5.3, so I had to use the setModel, delete old model pointer method for my uses. But I'll be sure to use the new method you mentioned when I upgrade!

[graciano]

Hi,

I solved this kind of "situation" in a very "craft" way:

...
Dialog::Dialog(QWidget *parent)
    : QDialog(parent), ui(new Ui::Dialog)
{
    ui->setupUi(this);
    ui->fileNameLabel->setText("pessoa.png");
    model = new QSqlTableModel(this);
    setModel();
    setView();
    ...
}
 
void Dialog::setModel()
{
    model->setTable("photo");
    model->setHeaderData(photo_id, Qt::Horizontal, tr("ID"));
    model->setHeaderData(photo_name, Qt::Horizontal, trUtf8("Filename"));
    model->setHeaderData(photo_image, Qt::Horizontal, trUtf8("Image"));
    model->select();
}
 
void Dialog::setView()
{
    view = ui->tableView;
    view->setModel(model);
    view->setColumnHidden(photo_image, true);
    view->horizontalHeader()->setStretchLastSection(true);
    view->setSelectionMode(QAbstractItemView::SingleSelection);
    view->setSelectionBehavior(QAbstractItemView::SelectRows);
}

...
Dialog::Dialog(QWidget *parent)
    : QDialog(parent), ui(new Ui::Dialog)
{
    ui->setupUi(this);
    ui->fileNameLabel->setText("pessoa.png");
    model = new QSqlTableModel(this);
    setModel();
    setView();
    ...
}

void Dialog::setModel()
{
    model->setTable("photo");
    model->setHeaderData(photo_id, Qt::Horizontal, tr("ID"));
    model->setHeaderData(photo_name, Qt::Horizontal, trUtf8("Filename"));
    model->setHeaderData(photo_image, Qt::Horizontal, trUtf8("Image"));
    model->select();
}

void Dialog::setView()
{
    view = ui->tableView;
    view->setModel(model);
    view->setColumnHidden(photo_image, true);
    view->horizontalHeader()->setStretchLastSection(true);
    view->setSelectionMode(QAbstractItemView::SingleSelection);
    view->setSelectionBehavior(QAbstractItemView::SelectRows);
}

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This way i call setView() when i need to make sure that model and view are sinchronized.