Method sort

pattern/db/__init__.py:2044–2053

(self, cmp=None, key=None, reverse=False, order=None)

        return list(self).index(column)
    
    def sort(self, cmp=None, key=None, reverse=False, order=None):
        # This makes most sense if the order in which columns should appear is supplied.
        o = order and order or _order(self, cmp, key, reverse)
        for i, row in enumerate(self._datasheet):
            # The main difficulty is modifying each row in-place,
            # since other variables might be referring to it.
            r=list(row); [row.__setitem__(i2, r[i1]) for i2, i1 in enumerate(o)]
        # Reorder the datasheet headers.
        if self._datasheet.fields is not None:
            self._datasheet.fields = [self._datasheet.fields[i] for i in o]
    
    def swap(self, j1, j2):
        self[j1], self[j2] = self[j2], self[j1]