在Django中填充外鍵字段

Question

在我的第一個應用程序（課程）中，我創建了課程。每門課程都有多個章節，每章都有測驗。我正在嘗試使用第二個應用（測驗）來創建測驗。 models.py（測驗）：

class Quiz(models.Model): 
    coursechapter = models.ForeignKey(CourseChapter) 
    name = models.CharField(max_length=255, verbose_name=u'Quiz name',) 
    creator = models.ForeignKey(User) 
    creation = models.DateField(auto_now_add=True) 
    def __unicode__ (self): 
     return self.name 

class Question(models.Model): 
    quiz = models.ForeignKey(Quiz) 
    text = models.CharField(max_length=255, verbose_name=u'Question\'s text') 


class QuestionAnswer(models.Model): 
    question = models.ForeignKey(Question) 
    text = models.CharField(max_length=255, verbose_name=u'Answer\'s text') 
    is_valid = models.BooleanField(default=False) 

class UserAnswer(models.Model): 
    answer = models.ForeignKey(QuestionAnswer) 

我有創造的課程，該模板裏面我有鏈接（添加章節），這需要我爲創建章節另一個模板（視圖）模板。在裏面我有鏈接爲特定章節創建測驗。該鏈接導致url：/測驗/新（使用來自測驗應用程序的url.py），它由view.py（來自測驗應用程序）表示。 問題是我不知道如何獲取我創建測驗的章節ID。章節鏈接的例子（用戶點擊創建測驗之前的一個）/ course/new/chapter/197 /，是否有可能以某種方式通過鏈接發送chapter_id（197）或者是否有其他方式？ views.py（測驗）：

class CreateQuizView(CreateChapterView): 
    model = Quiz 
    template_name = 'quiz/create_quiz.html' 
    fields = '__all__' 

    def dispatch(self, request, *args, **kwargs): 
     self.pk = kwargs.get('pk') 
     return super(CreateQuizView, self).dispatch(request, *args, **kwargs) 
    def get_success_url(self): 
     return reverse('quiz-list', 
            kwargs={'pk': Quiz.objects.latest('id').id}) 

    def get_context_data(self, **kwargs):  

     context = super(CreateQuizView, self).get_context_data(**kwargs) 
     return context 

views.py（課程）：

class CreateChapterView(CreateView, GroupRequiredMixin): 
    model = CourseChapter 
    template_name = 'course/add_chapter.html' 
    fields = '__all__' 
    def dispatch(self, request, *args, **kwargs): 
     self.pk = kwargs.get('pk') 
     return super(CreateChapterView, self).dispatch(request, *args, **kwargs) 
    def get_success_url(self): 
     return reverse('courses-chapters', 
            kwargs={'pk': Course.objects.latest('id').id}) 

    def get_context_data(self, **kwargs):  

     context = super(CreateChapterView, self).get_context_data(**kwargs) 
     context['chapter'] = CourseChapterForm 
     context['chapters'] = CourseChapter.objects.all() 
     context['last'] = Course.objects.latest('id') 
     context['courses'] = Course.objects.all() 
     context['action'] = reverse('courses-chapters', 
            kwargs={'pk': Course.objects.latest('id').id}) 
     context['kw'] = self.kwargs 
     context['quiz'] = QuizForm() 
     context['question'] = QuestionForm() 
     context['answer'] = QuestionAnswerForm 

     return context 

    def form_valid(self, form): 
     self.object = form.save() 
     # chapters = CourseChapter.objects.filter(course_id=Course.id) 
     return HttpResponseRedirect(self.get_success_url()) 

urls.py（主）

url(r'^course/', include('course.urls')), 
url(r'^quiz/', include('quiz.urls', namespace="quiz")), 

網址（當然）

url(r'^new/$', course.views.CreateCourseView.as_view(), 
    name='courses-new',), 
url(r'^new/(?P<pk>\d+)/$', course.views.CreateChapterView.as_view(), 
    name='courses-chapters'), 
url(r'^edit/(?P<pk>\d+)/$', course.views.UpdateCourseView.as_view(), 
     name='courses-edit',), 
url(r'^new/chapter/(?P<pk>\d+)/$', course.views.CreateChapterView.as_view(), 
     name='chapter-content',), 
url(r'^edit/chapters/(?P<pk>\d+)/$', course.views.UpdateChapterView.as_view(), 
     name='chapters-edit',), 

網址（測驗）：

urlpatterns = [ 
    url(r'^$', quiz.views.ListQuizView.as_view(), 
     name='quiz-list',), 
url(r'^new/$', quiz.views.CreateQuizView.as_view(), 
    name='quiz-new',), 
    ] 

Answer 1

你提到你有一個鏈接在你創建章節的頁面上創建測驗。我建議你自己創建鏈接。

對於例如，

可以說，你當然有「學習Python」，這有一個叫言章，它有ID 7，您可以格式化你的URL作爲這樣/add-quiz/chapter/chapter_id。如果您從視圖中傳遞它，您將在頁面中擁有章節。

Answer 2

將您的網址格式從/quiz/new更改爲/quiz/new/<chapter id>之類的內容。

您可以從create quiz視圖中獲取這些chapter id。