db.py 文件源码

def delete(self, key, version=None):
        key = self.make_key(key, version=version)
        self.validate_key(key)

        db = router.db_for_write(self.cache_model_class)
        connection = connections[db]
        table = connection.ops.quote_name(self._table)

        with connection.cursor() as cursor:
            cursor.execute("DELETE FROM %s WHERE cache_key = %%s" % table, [key])