Question

Tableview use a QSqlRelationalTableModel. How can I insert data from a column in the vertical header?

Answer 1

Easiest way would be subclassing the QSqlRelationalTableModel and overriding headerData method (which is responsible for showing data for headers:

class MyModel(QtSql.QSqlRelationalTableModel):
    def headerData(self, section, orientation, role=QtCore.Qt.DisplayRole):
        if orientation == QtCore.Qt.Vertical:
            index = self.index(section, 0) # assuming ID is the first column
            return self.data(index, role)
        else:
            # return original headers for horizontal orientation
            return super(MyModel, self).headerData(section, orientation, role)

Then use this instead of QSqlRelationalTableModel. If you want, you can hide the ID column (since it’ll be duplicated) in the QTableView with setColumnHidden:

myTableView.setColumnHidden(0, True) # again assuming ID is the first column