'Validates the POST data. If valid, calls done(). Else, redisplays form.'

def post_post(self, request):

    f = self.form(request.POST, auto_id=self.get_auto_id())
    if f.is_valid():
        if (not self._check_security_hash(request.POST.get(self.unused_name('hash'), ''), request, f)):
            return self.failed_hash(request)
        return self.done(request, f.cleaned_data)
    else:
        return render_to_response(self.form_template, self.get_context(request, f), context_instance=RequestContext(request))
