How to set checked/unchecked multiple selected rows of a QTableView

I'm attempting to apply the principle outlined in the following post, but for the CheckStateRole of my model (which is defined both in the data/setData methods of my model):

how can i achieve to update multiple rows in a qtableview

However, I realized checking/unchecking a column (in my case column 0), doesn't seem to call commitData at all.

Here's the code snippet:

class MyTableView(QtGui.QTableView):
    """
    View that will set all selected rows to the current CheckedState.
    """
    def __init__(self, parent=None):
        super(MyTableView, self).__init__(parent)

    def commitData(self, editor):
        # this method is not called when a user checks/unchecks an item
        super(MyTableView, self).commitData(editor)
        model = self.currentIndex().model()
        current_row, current_column = self.currentIndex().row(), 0
        value = model.data(model.index(current_row, current_column), QtCore.Qt.CheckStateRole)
        for row in self.selectionModel().selectedRows(0):
            if row != current_row:
                index = model.index(row, current_column)
                model.setData(index, value, QtCore.Qt.CheckStateRole)

How can achieve this for checkboxes in a QTableView using a QAbstractTableModel?

Internally, how is the checkBox handled? Is it not considered a delegate which calls commitData?