django - Django - WSGIRequest'对象没有属性'Get'

Question

所以我有 2 个场景，其中一个有效，一个无效。我在 html 模板中设置了一个选择框，其中包含一些您可以在 Scenrio2 中看到的硬编码选项。我很想知道为什么 Scenario2 可以正常工作，而 Scenario1 会抛出此错误。我还附上了下面的堆栈跟踪。

---

场景1（不工作）：

    current_status = 'All'
    status_list = []

    all_status = RequisitionStatus.objects.all()
    for status in all_status:
        status_list.append(status.status)

    if request.Get.get('Filter') in status_list:
        user_req_lines_incomplete = RequisitionLine.objects.filter(Q(parent_req__username=request.user) & Q(status__status=request.Get.get('Filter')))
        current_status = request.Get.get('Filter')
    else:
        user_req_lines_incomplete = RequisitionLine.objects.filter(parent_req__username=request.user).exclude(status__status='Completed')

场景2（作品）：

if request.GET.get('Filter') == 'Created':
        user_req_lines_incomplete = RequisitionLine.objects.filter(Q(parent_req__username=request.user) & Q(status__status='Created'))
        current_status = 'Created'
    elif request.GET.get('Filter') == 'For Assistance':
        user_req_lines_incomplete = RequisitionLine.objects.filter(Q(parent_req__username=request.user) & Q(status__status='For Assistance'))
        current_status = 'For Assistance'
    elif request.GET.get('Filter') == 'Assistance Complete':
        user_req_lines_incomplete = RequisitionLine.objects.filter(Q(parent_req__username=request.user) & Q(status__status='Assistance Complete'))
        current_status = 'Assistance Complete'
    elif request.GET.get('Filter') == 'Assistance Rejected':
        user_req_lines_incomplete = RequisitionLine.objects.filter(Q(parent_req__username=request.user) & Q(status__status='Assistance Rejected'))
        current_status = 'Assistance Rejected'
    else:
        user_req_lines_incomplete = RequisitionLine.objects.filter(parent_req__username=request.user).exclude(status__status='Completed')

堆栈跟踪：

Traceback:

File "C:\Users\Kevin.Pardo\Documents\Python\venv\env\lib\site-packages\django\core\handlers\exception.py" in inner
  34.             response = get_response(request)

File "C:\Users\Kevin.Pardo\Documents\Python\venv\env\lib\site-packages\django\core\handlers\base.py" in _get_response
  126.                 response = self.process_exception_by_middleware(e, request)

File "C:\Users\Kevin.Pardo\Documents\Python\venv\env\lib\site-packages\django\core\handlers\base.py" in _get_response
  124.                 response = wrapped_callback(request, *callback_args, **callback_kwargs)

File "C:\Users\Kevin.Pardo\Documents\Python\venv\env\lib\site-packages\django\contrib\auth\decorators.py" in _wrapped_view
  21.                 return view_func(request, *args, **kwargs)

File "C:\Users\Kevin.Pardo\Documents\Python\django\lambda\req\views.py" in pending_action
  241.     if request.Get.get('Filter') in status_list:

Exception Type: AttributeError at /req/pending/
Exception Value: 'WSGIRequest' object has no attribute 'Get'

标签： djangodjango-views

Answer 1

这与您遵循的方法无关。在您的第一种方法中，您编写：

if request.Get.get('Filter') in status_list:
  # ...

就像错误说的那样，request对象没有Get属性，只有一个GET属性。你在视图的其余部分犯了同样的错误。

因此，您可以使用以下方法解决此问题：

if request.GET.get('Filter') in status_list:
  # ...

此外，您还在parent_req__username=request.user过滤（两个视图）中写道，我认为使用parent_req=request.user, 或parent_req__username=request.user.username) 可能会更好。

实际上，您可以进一步改进这一点，例如：

current_status = 'All'
all_status = RequisitionStatus.objects.values_list('status', flat=True)
filter = request.GET.get('filter')

if filter in status_list:
    user_req_lines_incomplete = RequisitionLine.objects.filter(
        parent_req=request.user,
        status__status=filter
    )
    current_status = filter
else:
    user_req_lines_incomplete = RequisitionLine.objects.filter(
        parent_req=request.user
    ).exclude(
        status__status='Completed'
    )