Returns the default URL to redirect to after logging in.  Note
        that URLs passed explicitly (e.g. by passing along a `next`
        GET parameter) take precedence over the value returned here.

def get_login_redirect_url(self, request):
        """
        Returns the default URL to redirect to after logging in.  Note
        that URLs passed explicitly (e.g. by passing along a `next`
        GET parameter) take precedence over the value returned here.
        """
        assert request.user.is_authenticated
        url = getattr(settings, "LOGIN_REDIRECT_URLNAME", None)
        if url:
            warnings.warn("LOGIN_REDIRECT_URLNAME is deprecated, simply"
                          " use LOGIN_REDIRECT_URL with a URL name",
                          DeprecationWarning)
        else:
            url = settings.LOGIN_REDIRECT_URL
        return resolve_url(url)