NoReverseMatch at /student/test/ 没有找到带有参数 '('',)' 的“single_quiz”的反向。尝试了 1 种模式：['quiz/(?P<quiz_id>[0-9]+)/$']

Question

传递 id 时发生严重匹配错误。但手动添加时工作正常。它显示 NoReverseMatch 错误。我无法弄清楚这是从哪里来的。我也应该添加回溯吗？

模板

    <div style="padding: 100px 270px;">
    {% for a in applied%}
    {{a.job.quiz.id}}

    <a href="{% url 'single_quiz' a.job.quiz.id %}">{{a.job.quiz}}</a>
    
    {%endfor%}
    </div>

views.py

def single_quiz(request, quiz_id):
     print(quiz_id)
     quiz = get_object_or_404(Quiz, pk=quiz_id)
     print(quiz)
     num_questions = len(quiz.question_set.all())
     try:

         unique = Result.objects.get(user=request.user,quiz=quiz)

     except Result.DoesNotExist:
          unique = False



      # deletes quiz and returns to home if no questions created
    if num_questions == 0:
         quiz.delete()
         all_quiz_list = Quiz.objects.all()
         context = {
         'all_quiz_list': all_quiz_list,
          }
          return render(request, 'quiz/index.html', context)

    quiz.num_questions = num_questions
    quiz.save()

    # resets accuracy info to 0
    request.session["num_correct"] = 0
    request.session["num_wrong"] = 0

    context = {
        'quiz': quiz,
        'num_questions': num_questions,
        'unique': unique,
    }

    return render(request, 'quiz/single_quiz.html', context)

def TestStudents(request):
     applied=Applicants.objects.filter(applicant=request.user)
     context={
        'applied':applied
      }
     return render(request,'student/test_list.html',context)

urls.py

path('<int:quiz_id>/', views.single_quiz, name='single_quiz'),

Answer 1

尝试使用这个：-

    {% for a in quiz %}


    <a href="{% url 'single_quiz' a.id %}">{{a.job.quiz}}</a>
    
    {% endfor %}

在您的整个视图中，我没有看到任何名为 applied 的变量。确保您成功传递了所有变量。