我的视图没有从Djagno中的表单保存实例

Question

我正在试着为我的Q&；一个项目。我制作了模型以供评论，在question\u detail.html中的表单部分an，以及在form.py中的QuestionCommentForm（）

model.py

class QuestionComment(models.Model):
    user = models.ForeignKey(User,on_delete=models.CASCADE)
    question = 
    models.ForeignKey(Question,on_delete=models.CASCADE)
    created_date = models.DateTimeField(auto_now_add= True)
    body = models.CharField(max_length=200, null= True , 
    blank = True, default ='')
    def __str__(self):
    return str(self.body)

forms.py

          {%if c_form%}
    <form method="POST" action= "{% usl 'blog:question-commet' question.id  >{% csrf_token %}
    {{c_form.media}}
    {{ c_form.as_p}}
      <button type = "submit" , name = "question_id", value = "{{question.pk}}", class ="btn btn-secondary btn-sm">submit comment</button>

views.py

@api_view(['POST','GET'])
def question_comment(request, *args, **kwargs):
    form = QuestionCommentForm()
     print('finction comment started'*20)
     if request.method == 'POST':
        c_form = QuestionCommentForm(request.POST)
        if c_form.is_valid():        
            new_comment = c_form.save(commit=False)
            new_comment.refresh_from_db()
            c_form.instance.user = request.user
            question = Question.objects.get(id = request.POST.get('question_id')

            new_comment.question = question
            new_comment.bldy =c_form.cleaned_data.get('body')
            new_comment.save()
    context['c_form'] = c_form
    return render(request, 'blog/question_detail.html',context)

class QuestionDetail(DetailView):
    template_name = 'blog/question_detail.html'
    model = Question
    context_object_name = 'question'
    count_hit = True
    def get_queryset(self):
        return Question.objects.filter(id = self.kwargs['pk'])

    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        c_form = QuestionCommentForm()
        context = super(QuestionDetail,self).get_context_data(**kwargs)
        self.obj= get_object_or_404(Question, id = self.kwargs['pk'])
        self.object.save()
        self.object.refresh_from_db()
        answers = Answer.objects.filter (question_id = self.obj.id).order_by('-created_date')
        liked =self.obj.like.filter(id =self.request.user.id).exists()
        print('liked in class question not checked still' *10)
        comments= QuestionComment.objects.filter(question = self.kwargs['pk'])
        context['comments']= comments
        context["answers"]=answers
        context["liked "] = liked
        context['c_form'] = c_form
        return context

    def post(request, *args, **kwargs):
        print('post started'*100)
        c_form = QuestionCommentForm()
        c_form = QuestionCommentForm(request.POST)
        if c_form.is_valid():        
            new_comment = c_form.save(commit=False)
            new_comment.refresh_from_db()
            new_comment.user = request.user
            new_comment.question = c_form.cleaned_data.get('question_id')
            new_comment.bldy =c_form.cleaned_data.get('body')
            new_comment.save()
            context['c_form'] = c_form
        else:
            c_form= QuestionCommentForm()
        return render(request, 'blog/question_detail.html',context)
    

url.py

...
path('question-comment/<int:pk>/', question_comment, name = 'question-comment'),

]

在我看来，首先我尝试使用另一个函数来处理注释，但没有得到任何结果，并生成了一个def post（） 在类QuestionDetial（）中，表单仍然显示，但当我键入某个内容并按下按钮时，它刷新页面，而不保存任何内容。我已经用admin保存了一条评论，它出现在问题详细信息页面中。使用print查找bug，但类中的post（）和问题\u comment（）似乎没有被召回。搜索了很多，但没有答案。（顺便说一句，除了我修复的NoReverseMatch之外，我没有得到任何错误）

Answer 1

从不保存模型对象（不是通过窗体，也不是通过视图）。此外，该方法的名称是'POST'，而不是'Post'：

@api_view(['POST','GET'])
def question_comment(request, *args, **kwargs):
    form = QuestionCommentForm()
    print('finction comment started'*20)
    if request.method == 'POST':
        c_form = QuestionCommentForm(request.POST)
        if c_form.is_valid():        
            c_form.instance.user = request.userc_form.save()
    context = {'c_form': c_form }
    return render(request, 'blog/question_detail.html',context)

Answer 2

好的，问题是我在question\u detail模板中有两个表单标签，而在模板末尾添加评论表单的buy有3个，但问题是当我按下提交评论按钮时，终端显示了此消息

"POST /create-like/blog/answer/18/ HTTP/1.1" 302 0

这是我为like函数制作的表单。（而我的url是问题注释） 我不小心忘记关闭模板中的like表单标记。所以我所需要的就是放一个

 </form>

在窗体块之后。 谢谢，我是威廉·范昂森。它解决了我的post方法错误。 这些都很有帮助

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