Mike Starr

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Nov 1, 2019, 7:49:29 AM11/1/19

to Django users

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

E:\computer stuff\python\lib\site-packages\django\core\handlers\exception.py in inner
1. ```
            response = get_response(request)
```
  …
▶ Local vars
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
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
E:\computer stuff\python\lib\site-packages\django\views\generic\base.py in view
1. ```
            return self.dispatch(request, *args, **kwargs)
```
  …
▶ Local vars
E:\computer stuff\python\lib\site-packages\django\views\generic\base.py in dispatch
1. ```
        return handler(request, *args, **kwargs)
```
  …
▶ Local vars
E:\computer stuff\python\lib\site-packages\django\views\generic\list.py in get
1. ```
        self.object_list = self.get_queryset()
```
  …
▶ Local vars
E:\computer stuff\python\lib\site-packages\django\views\generic\list.py in get_queryset
1. ```
                    'cls': self.__class__.__name__
```
  …
▶ Local vars

Request information

USER

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

E:\computer stuff\python\lib\site-packages\django\core\handlers\exception.py in inner
1. ```
            response = get_response(request)
```
  …
▶ Local vars
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

Request information

USER

admin

GET

No GET data

POST

Variable	Value
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!

Kasper Laudrup

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Nov 1, 2019, 8:15:41 AM11/1/19

to django...@googlegroups.com

Hi Mike,

On 01/11/2019 09.14, 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:

Have you tried doing as the error message suggests:

>
> IndexView is missing a QuerySet. Define IndexView.model, IndexView.queryset, or override IndexView.get_queryset().
>

?

Kind regards,

Kasper Laudrup

Nijo Joseph

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Nov 1, 2019, 8:17:54 AM11/1/19

to Django users

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.

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Generic Views in Django Tutorial Not Working

Mike Starr

ImproperlyConfigured at /polls/

Traceback Switch to copy-and-paste view

Request information

USER

GET

POST

What's new?

ValueError at /polls/1/vote/

Traceback Switch to copy-and-paste view

Request information

USER

GET

POST

Kasper Laudrup

Nijo Joseph