class IndexView(generic.ListView):
template_name = 'polls/index.html'
context_object_name = 'latest_question_list'
def get_queryset(self):
"""Return the last five published questions."""
return Question.objects.order_by('-pub_date')[:5]
the def get_queryset(self): function is missing. check the indendation as well.
always produce the code snippet.
On Friday, November 1, 2019 at 5:19:29 PM UTC+5:30, Mike Starr wrote:
>
> Hi! There's a lot of error message to copy and paste so please request
> what you would like to see specifically. I am at
> https://docs.djangoproject.com/en/2.2/intro/tutorial04/#use-generic-views-less-code-is-better
> in
> the Django tutorial and it seems replacing HTTPRequests with GenericViews
> broke the web server. I followed the instructions and now have this:
>
> ImproperlyConfigured at /polls/
>
> IndexView is missing a QuerySet. Define IndexView.model, IndexView.queryset,
> or override IndexView.get_queryset().
>
> Request Method: GET
> Request URL: http://localhost:8000/polls/
> Django Version: 2.2.4
> Exception Type: ImproperlyConfigured
> Exception Value:
>
> IndexView is missing a QuerySet. Define IndexView.model, IndexView.queryset,
> or override IndexView.get_queryset().
>
> Exception Location: E:\computer
> stuff\python\lib\site-packages\django\views\generic\list.py in
> get_queryset, line 39
> Python Executable: E:\computer stuff\python\python.exe
> Python Version: 3.7.3
> Python Path:
>
> ['E:\\computer stuff\\python\\Django\\mysite',
> 'E:\\computer stuff\\python',
> 'E:\\computer stuff\\python\\Lib',
> 'E:\\computer stuff\\python\\Django\\mysite',
> 'E:\\computer stuff\\python\\python37.zip',
> 'E:\\computer stuff\\python\\DLLs',
> 'E:\\computer stuff\\python\\lib\\site-packages',
> 'E:\\computer stuff\\python\\lib\\site-packages\\scrapy-1.5.0-py3.7.egg',
> 'E:\\computer '
> 'stuff\\python\\lib\\site-packages\\service_identity-18.1.0-py3.7.egg',
> 'E:\\computer
> stuff\\python\\lib\\site-packages\\pydispatcher-2.0.5-py3.7.egg',
> 'E:\\computer stuff\\python\\lib\\site-packages\\parsel-1.5.1-py3.7.egg',
> 'E:\\computer stuff\\python\\lib\\site-packages\\six-1.12.0-py3.7.egg',
> 'E:\\computer stuff\\python\\lib\\site-packages\\cssselect-1.0.3-py3.7.egg',
> 'E:\\computer stuff\\python\\lib\\site-packages\\pyopenssl-19.0.0-py3.7.egg',
> 'E:\\computer '
> 'stuff\\python\\lib\\site-packages\\lxml-4.3.4-py3.7-win-amd64.egg',
> 'E:\\computer stuff\\python\\lib\\site-packages\\queuelib-1.5.0-py3.7.egg',
> 'E:\\computer stuff\\python\\lib\\site-packages\\w3lib-1.20.0-py3.7.egg',
> 'E:\\computer '
> 'stuff\\python\\lib\\site-packages\\pyasn1_modules-0.2.5-py3.7.egg',
> 'E:\\computer stuff\\python\\lib\\site-packages\\win32',
> 'E:\\computer stuff\\python\\lib\\site-packages\\win32\\lib',
> 'E:\\computer stuff\\python\\lib\\site-packages\\Pythonwin']
>
> Server time: Fri, 1 Nov 2019 01:03:42 -0700
> Traceback Switch to copy-and-paste view <http://localhost:8000/polls/#>
>
> - E:\computer
> stuff\python\lib\site-packages\django\core\handlers\exception.py in
> inner
> 1.
>
> response = get_response(request)
>
> …
> ▶ Local vars <http://localhost:8000/polls/#>
> - E:\computer
> stuff\python\lib\site-packages\django\core\handlers\base.py in
> _get_response
> 1.
>
> response = self.process_exception_by_middleware(e,
> request)
>
> …
> ▶ Local vars <http://localhost:8000/polls/#>
> - E:\computer
> stuff\python\lib\site-packages\django\core\handlers\base.py in
> _get_response
> 1.
>
> response = wrapped_callback(request, *callback_args,
> **callback_kwargs)
>
> …
> ▶ Local vars <http://localhost:8000/polls/#>
> - E:\computer
> stuff\python\lib\site-packages\django\views\generic\base.py in view
> 1.
>
> return self.dispatch(request, *args, **kwargs)
>
> …
> ▶ Local vars <http://localhost:8000/polls/#>
> - E:\computer
> stuff\python\lib\site-packages\django\views\generic\base.py in dispatch
> 1.
>
> return handler(request, *args, **kwargs)
>
> …
> ▶ Local vars <http://localhost:8000/polls/#>
> - E:\computer
> stuff\python\lib\site-packages\django\views\generic\list.py in get
> 1.
>
> self.object_list = self.get_queryset()
>
> …
> ▶ Local vars <http://localhost:8000/polls/#>
> - E:\computer
> stuff\python\lib\site-packages\django\views\generic\list.py in
> get_queryset
> 1.
>
> 'cls': self.__class__.__name__
>
> …
> ▶ Local vars <http://localhost:8000/polls/#>
>
> Request informationUSER
>
> admin
> GET
>
> No GET data
> POST
>
> No POST data
>
>
>
>
>
>
> for http://localhost:8000/polls/
>
>
>
>
>
>
>
>
>
>
>
>
>
> but polls.1 works:
>
>
> What's new? Not much
> Nothing
> I don't know
> The best
>
>
>
>
>
>
> but voting yields
>
>
> ValueError at /polls/1/vote/
>
> The view polls.views.vote didn't return an HttpResponse object. It returned
> None instead.
>
> Request Method: POST
> Request URL: http://localhost:8000/polls/1/vote/
> Django Version: 2.2.4
> Exception Type: ValueError
> Exception Value:
>
> The view polls.views.vote didn't return an HttpResponse object. It returned
> None instead.
>
> Exception Location: E:\computer
> stuff\python\lib\site-packages\django\core\handlers\base.py in
> _get_response, line 126
> Python Executable: E:\computer stuff\python\python.exe
> Python Version: 3.7.3
> Python Path:
>
> ['E:\\computer stuff\\python\\Django\\mysite',
> 'E:\\computer stuff\\python',
> 'E:\\computer stuff\\python\\Lib',
> 'E:\\computer stuff\\python\\Django\\mysite',
> 'E:\\computer stuff\\python\\python37.zip',
> 'E:\\computer stuff\\python\\DLLs',
> 'E:\\computer stuff\\python\\lib\\site-packages',
> 'E:\\computer stuff\\python\\lib\\site-packages\\scrapy-1.5.0-py3.7.egg',
> 'E:\\computer '
> 'stuff\\python\\lib\\site-packages\\service_identity-18.1.0-py3.7.egg',
> 'E:\\computer
> stuff\\python\\lib\\site-packages\\pydispatcher-2.0.5-py3.7.egg',
> 'E:\\computer stuff\\python\\lib\\site-packages\\parsel-1.5.1-py3.7.egg',
> 'E:\\computer stuff\\python\\lib\\site-packages\\six-1.12.0-py3.7.egg',
> 'E:\\computer stuff\\python\\lib\\site-packages\\cssselect-1.0.3-py3.7.egg',
> 'E:\\computer stuff\\python\\lib\\site-packages\\pyopenssl-19.0.0-py3.7.egg',
> 'E:\\computer '
> 'stuff\\python\\lib\\site-packages\\lxml-4.3.4-py3.7-win-amd64.egg',
> 'E:\\computer stuff\\python\\lib\\site-packages\\queuelib-1.5.0-py3.7.egg',
> 'E:\\computer stuff\\python\\lib\\site-packages\\w3lib-1.20.0-py3.7.egg',
> 'E:\\computer '
> 'stuff\\python\\lib\\site-packages\\pyasn1_modules-0.2.5-py3.7.egg',
> 'E:\\computer stuff\\python\\lib\\site-packages\\win32',
> 'E:\\computer stuff\\python\\lib\\site-packages\\win32\\lib',
> 'E:\\computer stuff\\python\\lib\\site-packages\\Pythonwin']
>
> Server time: Fri, 1 Nov 2019 01:11:31 -0700
> Traceback Switch to copy-and-paste view
> <http://localhost:8000/polls/1/vote/#>
>
> - E:\computer
> stuff\python\lib\site-packages\django\core\handlers\exception.py in
> inner
> 1.
>
> response = get_response(request)
>
> …
> ▶ Local vars <http://localhost:8000/polls/1/vote/#>
> - E:\computer
> stuff\python\lib\site-packages\django\core\handlers\base.py in
> _get_response
> 1.
>
> "returned None instead." % (callback.__module__,
> view_name)
>
> …
> ▶ Local vars <http://localhost:8000/polls/1/vote/#>
>
> Request informationUSER
>
> admin
> GET
>
> No GET data
> POST
> VariableValue
> csrfmiddlewaretoken
>
> 'pLPWGJ7M3I1Idu1wuWYN1sTwdE9cESkJnCgd1jIY1qHc5ebY4sg6hSdNnyFeWOE6'
>
> choice
>
> '2'
>
>
>
>
> Okay. So. I'm going to study this tutorial and code and see if I can solve
> the problem myself. If anyone has any suggestions I'll be checking back
> daily, so ti's much appreciated in advance.
>
> Thank you!
>
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