Display the data of the given index

        :param index: the index to paint
        :type index: QtCore.QModelIndex
        :returns: None
        :rtype: None
        :raises: None

def set_index(self, index):
        """Display the data of the given index

        :param index: the index to paint
        :type index: QtCore.QModelIndex
        :returns: None
        :rtype: None
        :raises: None
        """
        item = index.internalPointer()
        note = item.internal_data()
        self.content_lb.setText(note.content)
        self.created_dte.setDateTime(dt_to_qdatetime(note.date_created))
        self.updated_dte.setDateTime(dt_to_qdatetime(note.date_updated))
        self.username_lb.setText(note.user.username)