Question

我试图更新我的模型，但它只是创建另一个实例，我无法找出原因。我的印象是我所需要的只是：

class QuestionUpdate(generic.UpdateView):
    model = models.Question
    form_class = QuestionForm

它会照顾我，但似乎并非如此。我在django 1.11和运行python 3.6。任何和所有的帮助表示赞赏。

models.py

class Question(models.Model):
    class Meta:
        ordering = ['-date_updated']
    # user = models.ForeignKey(User, related_name="question", default='')
    question = models.TextField(unique=False, blank=False, null=False)
    question_html = models.TextField(blank=False, null=False)
    answer = models.TextField(blank=False, null=False)
    answer_html = models.TextField(blank=False,null=False)
    date_created = models.DateTimeField(auto_now=True, null=True)
    date_updated = models.DateTimeField(auto_now=True, null=True)

    def __str__(self):
        return self.question
        # ^ to display an object in the Django admin site and
        # as the value inserted into a template when it displays an object.

    def save(self, *args, **kwargs):
        self.question_html = misaka.html(self.question)
        self.answer_html = misaka.html(self.answer)
        super().save(*args, **kwargs)

views.py

class QuestionUpdate(generic.UpdateView):
    model = models.Question
    form_class = QuestionForm
    # fields = ('question', 'answer')

    def edit_question(self, request, id):
        question = get_object_or_404(Question, id=id)
        form = QuestionForm(request.POST, instance=question)
        if form.is_valid():
            form.save()

forms.py

class QuestionForm(forms.ModelForm):
# your_name = forms.CharField(label='Your name', max_length=100)

    class Meta:
        fields = ("question", 'answer')
        model = models.Question

urls.py

url(r'questionupdate/(?P<pk>\d+)/$', views.QuestionUpdate.as_view(), name='update'),

Django updateView保存另一个实例而不是更新

0 个答案: