Django user_passes_test用法

时间:2016-09-14 11:12:03

标签: python django

我在Django中有一个基于函数的视图:

@login_required
def bout_log_update(request, pk):
...

虽然它受到未登录用户的保护,但我需要能够根据以下内容限制对此视图的访问: 1.用户当前已登录 2.哪个用户创建了对象(由pk引用)

只有当前登录的用户创建了正在访问的对象或者是超级用户时才需要访问它。

标准的@user_passes_test装饰者可以完成这个吗?还是定制装饰师?或完全是另一种方法?

我会把它重写为基于类的视图,并且如果可能的话,使用UserPassesTestMixin,但我不知道这个特定视图是可能的。

1 个答案:

答案 0 :(得分:1)

您可以使用自定义装饰器based on user_passes_test source轻松实现此目的:

def my_user_passes_test(test_func, login_url=None, redirect_field_name=REDIRECT_FIELD_NAME):
    """
    Decorator for views that checks that the user passes the given test,
    redirecting to the log-in page if necessary. The test should be a callable
    that takes the user object and returns True if the user passes.
    """

    def decorator(view_func):
        @wraps(view_func, assigned=available_attrs(view_func))
        def _wrapped_view(request, *args, **kwargs):
            # the following line is the only change with respect to
            # user_passes_test:
            if test_func(request.user, *args, **kwargs):
                return view_func(request, *args, **kwargs)
            path = request.build_absolute_uri()
            resolved_login_url = resolve_url(login_url or settings.LOGIN_URL)
            # If the login url is the same scheme and net location then just
            # use the path as the "next" url.
            login_scheme, login_netloc = urlparse(resolved_login_url)[:2]
            current_scheme, current_netloc = urlparse(path)[:2]
            if ((not login_scheme or login_scheme == current_scheme) and
                    (not login_netloc or login_netloc == current_netloc)):
                path = request.get_full_path()
            from django.contrib.auth.views import redirect_to_login
            return redirect_to_login(
                path, resolved_login_url, redirect_field_name)
        return _wrapped_view
    return decorator

请注意,只有一行从test_func(request.user)更改为test_func(request.user, *args, **kwargs),以便传递给视图的所有参数也会传递给测试函数。