Django's View class to try using a new View.dispatch of this commit https://github.com/hirokiky/django/commit/e3399495dca9a727568626f64e2fa276c2857da9

views.py

from django.views.generic import View
from django.http.response import HttpResponse

def corn_predicate(request):
    params = getattr(request, request.method)
    corn = params.get('corn', None)
    return corn == u'1'


class PonyView(View):
    dispatch_config = {'get': {'get_corn_1': corn_predicate}}

    def get(self, request):
        return HttpResponse('pony')

    def get_corn_1(self, request):
        """When request has corn=1."""
        return HttpResponse('pony with corn')