python-oxdjango/oxdjango/middleware.py

# -*- coding: utf-8 -*-
# vi:si:et:sw=4:sts=4:ts=4

from shortcuts import Http404Json, render_to_json_response

class ExceptionMiddleware(object):

    def process_exception(self, request, exception):
        if isinstance(exception, Http404Json):     
            return render_to_json_response(exception.response)          
        else:
            return None