包装/装饰urls.py与views.py中的函数 [英] Wrapping/decorating a function in urls.py vs in views.py
问题描述
因此,我对views.py中的包装函数非常熟悉.因此,如果用户 已登录,则我编写了一个装饰器,以重定向到默认的REDIRECT_URL(类似于反向的 login_required
);它基于我过去的观点:
So, I'm pretty familiar with wrapping functions in views.py. So I've written a decorator to redirect to the default REDIRECT_URL if the user is logged in (sort of a reverse login_required
); it's based on how I've made views in the past:
def not_logged_in(redirect_url=None, redirect_field_name=REDIRECT_FIELD_NAME):
def decorator(view_func, *args, **kwargs):
def wrapper(request, *args, **kwargs):
if not request.user.is_authenticated():
return view_func(*args, **kwargs)
else:
redirect_url = (request.REQUEST.get(redirect_field_name, redirect_url) or
settings.REDIRECT_URL)
return HttpResponseRedirect(redirect_url)
return wrapper
return decorator
但是,出现以下错误:'function'对象没有属性'status_code'
,这是由MiddleWare期望HttpResponse引起的.当我查看 response
的值时,我看到它是<函数包装在0x2b3a9922a500>
上.
However, I get the following error: 'function' object has no attribute 'status_code'
which is caused by a MiddleWare expecting an HttpResponse. When I look at the value for response
, I see that it's <function wrapper at 0x2b3a9922a500>
.
这是我在 urls.py
中调用它的方式:
Here's how I'm calling it in urls.py
:
url(r'login/',
not_logged_in(auth_views.login),
{'authentication_form': LoginForm },
),
推荐答案
这是我对同一件事的实现.
Here’s my implementation of the same thing.
def logout_required(view):
def f(request, *args, **kwargs):
if request.user.is_anonymous():
return view(request, *args, **kwargs)
return HttpResponseRedirect(settings.LOGIN_REDIRECT_URL)
return f
在 urls.py
中:
urlpatterns = patterns("",
url(r"^login/", logout_required(login), {"template_name": "users/login.html"}, "login"),
# ...
我希望这会有所帮助(虽然不确定).
I hope this helps (unsure though).
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