QTreeView & Sql Database.

Is the only way to display a QTreeView to loop through a record set and manually construct a hierarchical model?

So far the only examples I can find for QTreeView are pretty much manually constructed. What if I wanted changes to the data to be displayed in other widgets or written back to the data source?

All I can find are examples like this:

Code:

QStringList jobslist = jobs();
    m_jobsmodel = new QStandardItemModel;
 
    QStringList headerLabels;
    headerLabels << "Date" << "UUID" << "Assigned" << "Due Date" << "Status";
    m_jobsmodel->setHorizontalHeaderLabels(headerLabels);
 
    foreach(const QString& job, jobslist) {
        QList <QStandardItem *> jobItem;
        jobItem << new QStandardItem(QIcon(":/png/64x64/accept.png"), jobTitle(job));
 
        QStringList tasks = tasksByJob(job);
        foreach(const QString& task, tasks) {
            QList<QStandardItem*> items;
            items << new QStandardItem(QIcon(":/png/64x64/remove.png"), taskTitle(task));
            items << new QStandardItem(task);
            items << new QStandardItem(taskAssignee(task));
            items << new QStandardItem(taskDue(task));
            items << new QStandardItem(taskStatus(task));
 
            jobItem.at(0)->appendRow(items); // append child items to top-level item
        }
        m_jobsmodel->appendRow(jobItem);
    }

I am aware that data in an sql table is 2D, but surely there is a mechanism to display 2D data in a hierarchical form without having to construct a copy of what is in the database?

Thanks for your advice in advance.