decorators.py 文件源码

def cache_if_anon(timeout):
    """Cache the view if the user is not authenticated and there are no messages to display."""
    # https://stackoverflow.com/questions/11661503/django-caching-for-authenticated-users-only
    def _decorator(view_func):
        @wraps(view_func, assigned=available_attrs(view_func))
        def _wrapped_view(request, *args, **kwargs):
            if request.user.is_authenticated() or messages.get_messages(request):
                return view_func(request, *args, **kwargs)
            else:
                return cache_page(timeout)(view_func)(request, *args, **kwargs)
        return _wrapped_view
    return _decorator