基于 Django 类的视图和评论

Question

我无法将 cmets 添加到基于类的视图中， forms.py：

  class RequestForm(ModelForm):
      class Meta:
          model = Request
          exclude = ('slug',)
  class RequestCommentForm(ModelForm):
      class Meta:
          model = RequestComment
          fields = ['body' ]

models.py：

class Request(models.Model):
    title = models.CharField(max_length=250 )
    date = models.DateTimeField('Request date', default=timezone.now, editable=False )
    department = models.CharField(max_length=2, choices=DEPARTMENT)
    support_request = models.TextField('Request', max_length=2500, blank=True)
    owner = models.ForeignKey(User,)
    slug = models.SlugField(blank=True, editable=False)

    def __unicode__(self):
        return self.title

views.py：

class RequestDetailView(ModelFormMixin, DetailView):
    model = Request
    form_class = RequestCommentForm

    def get_success_url(self):
        return reverse('request-detail', kwargs={'pk': self.object.pk})

    def get_context_data(self, **kwargs):
        context = super(RequestDetailView, self).get_context_data(**kwargs)
        context['form'] = self.get_form()
        return context

    def post(self, request, *args, **kwargs):
        self.object = self.get_object()
        form = self.get_form()
        if form.is_valid():
            return self.form_valid(form)
        else:
            return self.form_invalid(form)
    def form_valid(self, form):
        form.instance.author = self.request.user
        form.instance.request = Request.objects.get(pk=self.object.pk)
        form.instance.created = timezone.now
        form.save()
Also tried this part with:
        self.object = form.save(commit=False)
        self.object.author = self.request.user
        self.object.request = Request.objects.get(pk=self.object.pk)
        self.object.created = timezone.now
        self.object.save()
        return super(RequestDetailView, self).form_valid(form)

模板：request_detail.html cmets 部分.....

{% load bootstrap %}
<form action="{% url 'request-detail' object.id %}" method="post"> {% csrf_token %}
        <ul class="form-group">
        {{ form|bootstrap }}
        </ul>
        <input class="btn btn-primary" type="submit" value="Submit" />
</form>

.....

页面呈现正确，但是当我提交时，无法保存评论。

调试工具栏显示 sql 查询正在更新请求模型，而不是请求注释。

不知道如何将来自不同模型的简单评论表单添加到详细信息页面。 任何帮助将不胜感激。

另外，如果有更优雅的方式将 cmets 表单添加到基于类的视图中，我很乐意看到它。我的 google-fu 没有帮助我找到任何东西。

Answer 1

我知道我回答这个问题为时已晚，但也许将来有同样问题的人可能会受益。

Class RequestDetailView(DetailView):
    model = Request
    template_name = 'detail.html'

    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        context ['comment'] = RequestComment.objects. all()
        context['form'] = RequestCommentForm()
        return context


Class CommentCreateView(CreateView):
    model = RequestComment
    form_class = RequestCommentForm

    def get_success_URL(self):
        return reverse ('request: detail', kwargs = {'slug':self.object.post.slug})

    def form_valid(self, form):
        post = get_object_or_404(Request, slug = self.kwargs ['slug'])
        Form.instance.post = Request
        return super().form_valid(form)

网址

path('<slug:slug>/add_comment/', CommentCreateView.as_view(), name = add_comment')

最后是 HTML

    <form action="{% url 'request:add_comment' request.slug %}" enctype = "multiparty/form-data" method = "post">
    </form>

就是这样。我是用手机回答的，所以有一些错别字等。这是我在这里的第一个答案，我搜索了堆栈溢出的答案，稍后我会发布链接。我假设 RequestComment 外键字段是 post 并且在 Django 中不鼓励创建名称为“request”的模型。

Answer 2

希望我能找到一种使用 CBV 的方法，但不行.. 函数视图效果很好...

class RequestDetailView(ModelFormMixin, DetailView):
    model = Request
    form_class = RequestCommentForm

    def get_success_url(self):
        return reverse('request-detail', kwargs={'pk': self.object.pk})

    def get_context_data(self, **kwargs):
        context = super(RequestDetailView, self).get_context_data(**kwargs)
        context['form'] = self.get_form()
        return context

    def comments(self):
        return RequestComment.objects.filter(request=Request.objects.get(pk=self.object.pk))


def RequestCommentAddView(request, pk):
    form = RequestCommentForm(request.POST or None)

    if form.is_valid() and pk:
        form.instance.author = request.user
        form.instance.request = Request.objects.get(pk=pk)
        form.save()
        return HttpResponseRedirect(reverse('request-detail', kwargs={'pk': pk}))
    return HttpResponseRedirect(reverse('request-detail', kwargs={'pk': pk}))