Starting the Survey voting implementation

In Chapter 4, Getting Fancier: Django Unit Test Extensions, we began developing code to serve pages for the survey application. We implemented the home page view. This view generates a page that lists both active and recently closed surveys and provides links, as appropriate, to either take an active survey or display results from a closed survey. Both of these kinds of links route to the same view function, survey_detail, which further routes the request based on the state of the Survey for which details have been requested:

def survey_detail(request, pk): 
    survey = get_object_or_404(Survey, pk=pk) 
    today = datetime.date.today() 
    if survey.closes < today: 
        return display_completed_survey(request, survey) 
    elif survey.opens > today: 
        raise Http404("%s does not open until %s; it is only %s" %
            (survey.title, survey.opens, today))
    else: 
        return display_active_survey(request, survey) 

We did...