Question

不确定我做错了什么。我制作了一个评论系统，用户可以在帖子上发表评论并能够回复该评论。一切正常，除非用户回复某些评论时回复显示为单个评论。（并且它也显示为回复）所以如果我回复评论＆＃34;你好吗＆＃ 34;有了消息＆＃34; good＆＃34;，然后我创建了两个＆＃34; good＆＃34;。一个作为答复。一个作为单一评论。我查看了我的代码，但我不知道为什么会发生这种情况。任何帮助将受到高度赞赏。谢谢/。这是我的代码。

views.py

def post(request, slug):
        user = get_object_or_404(User,username__iexact=request.user)
        try:
            profile = MyProfile.objects.get(user_id=request.user.id)
            # if it's a OneToOne field, you can do:
            # profile = request.user.myprofile
        except MyProfile.DoesNotExist:
            profile = None


        post = get_object_or_404(Post, slug=slug)
        post.views += 1  # increment the number of views
        post.save()      # and save it

        path = request.get_full_path()
        comments = Comment.objects.filter(path=path)
        #comments = post.comment_set.all()
        comment_form = CommentForm(request.POST or None)
        if comment_form.is_valid():
            parent_id = request.POST.get('parent_id')
            parent_comment = None
            if parent_id is not None:
                try:
                    parent_comment = Comment.objects.get(id=parent_id)
                except:
                    parent_comment = None
            comment_text = comment_form.cleaned_data['comment']
            new_comment = Comment.objects.create_comment(
                user=MyProfile.objects.get(user=request.user),
                path=request.get_full_path(),
                text=comment_text,
                post = post,
                parent = parent_comment
                )

            comment_form = CommentForm()
            return HttpResponseRedirect(post.get_absolute_url())
        for c in comments:
            c.get_children()
        context_dict = {
            'post' :post,
            'profile' :profile,
            'comments' : comments,
            'comment_form':comment_form

        }

        return render(request, 'main/post.html', context_dict)

models.py

class Comment(models.Model):
def get_children(self):
        if self.is_child:
            return None
        else:
            return Comment.objects.filter(parent=self)

post.html

<h1>Comments/Questions</h1>
<form method="POST" action=''>{% csrf_token %}
{{ comment_form.as_p }}
<input type='submit' class='btn btn-default' value='Add comment'/>
</form>


<br/>
<hr/>
<table class='table'>

{% for comment in comments %}

<tr><td>{{ comment.get_comment }} 
<br/><small>via {{ comment.user }} | {{ comment.timestamp|timesince }} ago </small>
        {% if not comment.is_child %}
        <ul>
        {% for child in comment.get_children %}
        <li>{{ child.get_comment }} 
        <small>via {{ child.user }}</small>


        </li>
        {% endfor %}
        </ul>
        <a href='#' class='reply_btn'>Reply</a>
        <div class='reply_comment'>
        <form method="POST" action=''>{% csrf_token %}
        <input type='hidden' name='parent_id' value='{{ comment.id }}' />
        {{ comment_form.as_p }}
        <input type='submit' class='btn btn-default' value='Add reply'/>
        </form>
        </div>
        {% endif %}


</td></tr>

{% endfor %}

</table>

</div>

评论显示在post.html中，对于该页面，视图是

def post(request, slug):
        user = get_object_or_404(User,username__iexact=request.user)
        try:
            profile = MyProfile.objects.get(user_id=request.user.id)
            # if it's a OneToOne field, you can do:
            # profile = request.user.myprofile
        except MyProfile.DoesNotExist:
            profile = None


        post = get_object_or_404(Post, slug=slug)
        post.views += 1  # increment the number of views
        post.save()      # and save it

        path = request.get_full_path()
        comments = Comment.objects.filter(path=path)
        #comments = post.comment_set.all()
        comment_form = CommentForm(request.POST or None)
        for c in comments:
                c.get_children()

        context_dict = {
            'post' :post,
            'profile' :profile,
            'comments' : comments,
            'comment_form':comment_form
        }
        return render(request, 'main/post.html', context_dict)

Answer 1

重复的评论只是模板的结果。这种情况正在发生，因为当您循环浏览所有评论时，新制作的评论也会包含在comments中。

除了充当评论子项之外，它还是一个评论对象，这就是当commments使用提供的路径进行注释然后将其作为模板呈现时，它被包含在filter()中的原因正常评论对象。

要解决此问题，您需要使用递归树。有像django-mptt这样的django应用程序可以在这类问题中使用。

将其集成到您的评论模型后，您只需使用{% recursetree %}模板标签即可呈现评论而无需重复。

表格提交和同一个帖子两次。为什么会发生这种情况

1 个答案: