Question

表格未显示。我应该如何在一个页面中显示多个表单？我想写评论＆amp;回复系统。

这是 comment.html

{% load static %}
<html lang="en">

    <head>
        <meta charset="UTF-8">
        <title>COMMENT</title>
    </head>

    <body>
        <div>
          <h2>{{ object.text }}</h2>
        </div>
        <div id="comment-area">
           {% for comment in post.comment.all %}
              <div class="media m-3">
                 <div class="media-body">
                    <h5 class="mt-0">
                       <span class="badge badge-primary badge-pill">{% by_the_time comment.created_at %}</span>
                       {{ comment.name }}
                       <span class="lead text-muted">{{ comment.created_at }}</span>
                       <a href="{% url 'recomment' comment.pk %}"Reply</a>
                    </h5>
                    {{ comment.text | linebreaksbr }}
                    {% for recomment in comment.recomment.all %}
                       <div class="media m-3">
                          <div class="media-body">
                             <h5 class="mt-0">
                                {{ recomment.name }}
                                <span class="lead text-muted">{{ recomment.created_at }}</span>
                             </h5>
                             {{ recomment.text | linebreaksbr }}
                          </div>
                       </div>
                    {% endfor %}
                  </div>
               </div>
           {% endfor %}
        </div>

        <form action="" method="POST" enctype='multipart/form-data'>
          {% for field in form %}
            <div class="form-group">
              {{ field.errors }}
              <label for="{{ field.id_for_label }}">
                 {{ field.label }}
              </label>
              {{ field }}
            </div>
          {% endfor %}
          {% csrf_token %}
          <input class="btn btn-primary" type="submit" value="comment">
        </form>

    </body>
</html>

在 views.py 中，我有三个观点

class DetailView(generic.DetailView):
      model = Post
      template_name = 'comment.html'

class CommentCreateView(generic.CreateView):

    model = Comment
    form_class = CommentCreateForm

    def get_context_data(self, *args, **kwargs):
        context = super().get_context_data(*args, **kwargs)
        context['post_pk'] = self.kwargs['pk']
        return context

    def form_valid(self, form):
        post_pk = self.kwargs['pk']
        self.object = form.save(commit=False)
        self.object.target = Post.objects.get(pk=post_pk)
        self.object.save()
        return redirect('detail', pk=post_pk)

class ReCommentCreateView(generic.CreateView):

    model = ReComment
    form_class = ReCommentCreateForm
    template_name = 'comment.html'

    def get_context_data(self, *args, **kwargs):
        comment_pk = self.kwargs['pk']
        comment = Comment.objects.get(pk=comment_pk)

        context = super().get_context_data(*args, **kwargs)
        context['post_pk'] = comment.target.pk
        return context

    def form_valid(self, form):
        comment_pk = self.kwargs['pk']
        comment = Comment.objects.get(pk=comment_pk)

        self.object = form.save(commit=False)
        self.object.target = comment
        self.object.save()

        return redirect('detail', pk=comment.target.pk)

urls.py

中的

urlpatterns = [
    path('comment/<int:pk>/', views.DetailView.as_view(template_name='comment.html'), name='comment'),
]

当我访问http://localhost:8000/polls/comment/1/时，不会显示任何表单。我认为CommentCreateView＆amp; views.py中的ReCommentCreateView类与任何网址都没有关联，但我希望这些表单显示在comment.html中。我该怎么做？

Answer 1

我假设您要对Post模型的详细信息页面上的特定评论创建评论并回复（重新评论）。

尽管为 CommentCreateView 和 ReCommentCreateView 类创建View并覆盖CreateView方法，您仍可以创建post

class CommentCreateView(generic.View):

   def post(self, request, *args, **kwargs):
      form = CommentCreateForm(request.POST)
      post = Post.objects.get(pk=kwargs['post_pk'])
      if form.is_valid():
        obj = form.save(commit=False)
        obj.target = post
        obj.save()
      return redirect('detail', pk=post.pk)

class ReCommentCreateView(generic.View):

   def post(self, request, *args, **kwargs):
      form = ReCommentCreateForm(request.POST)
      comment = Comment.objects.get(pk=kwargs['comment_pk'])
      if form.is_valid():
        obj = form.save(commit=False)
        obj.target = comment
        obj.save()
      return redirect('detail', pk=comment.target.pk)

现在在 DetailView 类的上下文数据中发送ReCommentCreateForm和CommentCreateForm。

class DetailView(generic.DetailView):
    model = Post
    template_name = 'comment.html'

    def get_context_data(self, **kwargs):
       context = super().get_context_data(**kwargs)
       context['comment_form'] = CommentCreateForm()
       context['recomment_form'] = ReCommentCreateForm()
       return context

在您的comment.html中，您可以使用这两个变量来呈现表单。

# comment form action url should have id of post.
<form action="{% url 'comment' post_pk=post.id %}" method="post">
   {{comment_form}}
   {% csrf_token %}
   <input class="btn btn-primary" type="submit" value="comment"> 
</form>

# re-comment form action url should have id of comment on which user is replying.
<form action="{% url 'recomment' comment_pk=comment.id %}" method="post">
   {{recomment_form}}
   {% csrf_token %}
   <input class="btn btn-primary" type="submit" value="re-comment">
</form>

更新以下所有观看的网址。

urlpatterns = [    
    # Detail page of post url 
    path('post/<int:pk>/', views.DetailView.as_view(), name='post'),
    # CommentCreateView page url to create comment on post
    path('comment/<int:post_pk>/', views.CommentCreateView.as_view(), name='comment'),
    # ReCommentCreateView page url to create re-comment on comment
    path('recomment/<int:comment_pk>/', views.ReCommentCreateView.as_view(), name='recomment'),
]

使用以下方式访问您的帖子详情页面： http://localhost:8000/polls/post/1/

合并两个CreateView以显示帖子模型的DetailView中的表单

1 个答案: