Python 我的头发怎么了?
我对装饰师有意见。我正试图用可选参数编写自己的装饰器 现在是这样做的:Python 我的头发怎么了?,python,django,decorator,python-decorators,Python,Django,Decorator,Python Decorators,我对装饰师有意见。我正试图用可选参数编写自己的装饰器 现在是这样做的: def CheckPremissions(manager=1): def wrap(func): def wrapper(request, *args, **kwargs): if request.user.is_anonymous(): return HttpResponseRedirect(reverse('login'))
def CheckPremissions(manager=1):
def wrap(func):
def wrapper(request, *args, **kwargs):
if request.user.is_anonymous():
return HttpResponseRedirect(reverse('login'))
logged_user = getRelatedWorker(request.user)
if (logged_user == None):
return HttpResponseRedirect('accounts/no_worker_error.html')
if self.manager != 0:
try:
dzial = Dzial.objects.get(kierownik=logged_user)
except Dzial.DoesNotExist:
isManager = False
else:
isManager = True
if not isManager:
return HttpResponseRedirect('accounts/denied_logged.html')
return func(request, *args, **kwargs)
return wrapper
return wrap
代码对我来说很好,但当我使用装饰器时,我会遇到以下错误:
Environment:
Request Method: GET
Request URL: http://127.0.0.1:8080/applications/show
Django Version: 1.4.1
Python Version: 2.7.3
Traceback:
File "/home/marcin/projekt/lib/python2.7/site-packages/django/core/handlers/base.py" in get_response
188. response = middleware_method(request, response)
File "/home/marcin/projekt/lib/python2.7/site-packages/django/middleware/common.py" in process_response
94. if response.status_code == 404:
Exception Type: AttributeError at /applications/show
Exception Value: 'function' object has no attribute 'status_code'
我做错了什么?我怀疑你没有正确使用装饰师。您需要调用它来指定管理器参数:
@CheckPremissions()
def someview(request):
pass
或者明确指定:
@CheckPremissions(manager=0)
def someview(request):
pass
你的装饰师也有不同的问题;您在代码中引用self.manager:
if self.manager != 0:
但这不是实例,也没有自参数。我想你的意思是:
if manager:
您可以通过将变量视为布尔值来测试该变量是否为非零。哦,你可能想修正一下装饰师的拼写;您可能是指检查权限:- 你的意思是检查权限而不是检查预授权吗?你是对的。那个自我之所以存在,是因为我以前想上一门装饰课;p再次感谢你: