operations.py 文件源码

def last_executed_query(self, cursor, sql, params):
        """
        Returns a string of the query last executed by the given cursor, with
        placeholders replaced with actual values.

        `sql` is the raw query containing placeholders, and `params` is the
        sequence of parameters. These are used by default, but this method
        exists for database backends to provide a better implementation
        according to their own quoting schemes.
        """
        # Convert params to contain Unicode values.
        to_unicode = lambda s: force_text(s, strings_only=True, errors='replace')
        if isinstance(params, (list, tuple)):
            u_params = tuple(to_unicode(val) for val in params)
        elif params is None:
            u_params = ()
        else:
            u_params = {to_unicode(k): to_unicode(v) for k, v in params.items()}

        return six.text_type("QUERY = %r - PARAMS = %r") % (sql, u_params)