def _get_next(request):
    """
    The part that's the least straightforward about views in this module is how they 
    determine their redirects after they have finished computation.

    In short, they will try and determine the next place to go in the following order:

    1. If there is a variable named ``next`` in the *POST* parameters, the view will
    redirect to that variable's value.
    2. If there is a variable named ``next`` in the *GET* parameters, the view will
    redirect to that variable's value.
    3. If Django can determine the previous page from the HTTP headers, the view will
    redirect to that previous page.
    """
    next = request.POST.get('next', request.GET.get('next', request.META.
        get('HTTP_REFERER', None)))
    if not next:
        next = request.path
    return next
