Sorts the tree by the inputed column name's index and the given order.
        
        :param      name    | <str>
                    order   | <QtCore.Qt.SortOrder>

def sortByColumnName(self, name, order=QtCore.Qt.AscendingOrder):
        """
        Sorts the tree by the inputed column name's index and the given order.
        
        :param      name    | <str>
                    order   | <QtCore.Qt.SortOrder>
        """
        self.setSortingEnabled(True)
        self.sortByColumn(self.column(name), order)