Python django 'QueryDict' 对象没有属性 'subject'

Question

我在这里该怎么写，因为我不知道如何解决我的问题，事实证明我正在创建一个在线测试门户，我需要知道我失败了，我解释了创建时的上下文问题应注明评估指标，并且该指标具有与所讨论的测试主题和类(class)一致的过滤器。好吧，过滤器可以向我显示特定类(class)和主题的指标，但只有当我输入手动 ID 时，而不是传递测验变量时，它才会抛出错误:“QueryDict”对象没有属性“主题”，我留下了形成代码和 View ，以便他们可以告诉我我失败了。

表单.py

class QuestionForm(forms.ModelForm):

class Meta:
    model = Question
    context_object_name = 'questions'  
    fields = ('number','planificacion','text','description', 'puntaje' ,'image','document' )
    label = 'Pregunta'



def __init__(self ,quiz ,*args, **kwargs):
    super().__init__(*args, **kwargs)
    self.fields['planificacion'].queryset = PlanificacionIndicador.objects.filter(planificacion__asignatura__id=quiz.subject.id, planificacion__curso__id=1)

正如你在过滤器中看到的，我做了 Planning__course__id = 1 有一个手动设置的 id，另一个有我想要的，我必须说过滤器有效，失败的是在想要保存时抛出错误.

查看.py

@login_required
@teacher_required
def question_add(request, pk):

quiz = get_object_or_404(Quiz, pk=pk, owner=request.user)

if request.method == 'POST':
    form = QuestionForm(request.POST, request.FILES)


    if form.is_valid():
        question = form.save(commit=False)
        question.quiz = quiz
        question.save()
        messages.success(request, 'Ahora puede agregar respuestas / opciones a la pregunta.')
        return redirect('teachers:question_change', quiz.pk, question.pk)
else:
    form = QuestionForm(quiz=quiz)
return render(request, 'classroom/teachers/question_add_form.html', {'quiz': quiz,'form': form})

这是错误

Internal Server Error: /teachers/quiz/79/question/add/
Traceback (most recent call last):
File "C:\Users\Oficina\AppData\Local\Programs\Python\Python37-32\lib\site- 
packages\django\core\handlers\exception.py", line 34, in inner
response = get_response(request)
File "C:\Users\Oficina\AppData\Local\Programs\Python\Python37-32\lib\site- 
packages\django\core\handlers\base.py", line 115, in _get_response
response = self.process_exception_by_middleware(e, request)
File "C:\Users\Oficina\AppData\Local\Programs\Python\Python37-32\lib\site- 
packages\django\core\handlers\base.py", line 113, in _get_response
response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "C:\Users\Oficina\AppData\Local\Programs\Python\Python37-32\lib\site- 
packages\django\contrib\auth\decorators.py", line 21, in _wrapped_view
return view_func(request, *args, **kwargs)
File "C:\Users\Oficina\AppData\Local\Programs\Python\Python37-32\lib\site- 
packages\django\contrib\auth\decorators.py", line 21, in _wrapped_view
return view_func(request, *args, **kwargs)
File "C:\Proyectos\proyecto-educa-quiz\classroom\views\teachers.py", line 
535, in question_add
form = QuestionForm(request.POST, request.FILES)
File "C:\Proyectos\proyecto-educa-quiz\classroom\forms.py", line 409, in 
__init__self.fields['planificacion'].queryset = 

PlanificacionIndicador.objects.filter(planificacion__asignatura__id=quiz.subject .id，planificacion__curso__id=1) AttributeError:“QueryDict”对象没有属性“subject”

Answer 1

您忘记将 quiz 参数放入 POST 案例中的 QuestionForm.__init__ 中。该行应为

    form = QuestionForm(quiz, request.POST, request.FILES)