Python 如何在评论表单上显示所选帖子

我正在做一个项目，用户可以发布视频并评论其他人的视频，比如instagram

评论页面有三个部分，一个是上传评论的表单，一个是显示评论的表单

最后是用户选择评论的视频（不显示）

models.py

class Comment(models.Model):
    post = models.ForeignKey(Post, on_delete=models.CASCADE)
    user = models.ForeignKey(User, on_delete=models.CASCADE)
    content = models.TextField(max_length=160)
    timestamp = models.DateTimeField(auto_now_add=True)

    def __str__(self):
        return '{}-{}'.format(self.post.title, str(self.user.username))

class Post(models.Model):
    text = models.CharField(max_length=200)
    video = models.FileField(upload_to='clips', null=True, blank=True)
    user = models.ForeignKey(User, related_name='imageuser', on_delete=models.CASCADE, default='username')
    liked = models.ManyToManyField(User, default=None, blank=True, related_name='liked')
    updated = models.DateTimeField(auto_now=True)
    created =models.DateTimeField(auto_now_add=True)

    def __str__(self):
        return str(self.text)

    def get_absolute_url(self):
        return reverse('comments', args=[self.pk])

views.py

def comments(request, pk):
    post = get_object_or_404(Post, pk=pk)
    comments = Comment.objects.filter(post=post)
    if request.method == 'POST':
        comment_form = CommentForm(request.POST or None)
        if comment_form.is_valid():
            content = request.POST.get('content')
            comment = Comment.objects.create(post=post, user=request.user, content=content)
            comment.save()
            return HttpResponseRedirect(post.get_absolute_url())

    else:
        comment_form = CommentForm()
    context2 = {
        "comments": comments,
        "comment_form": comment_form,

    }
    return render(request, 'comments.html', context2)

comments.html

<div class="post-container">
  <video class="video" width='400'>
    <source src='{{ video.url }}' type='video/mp4'>
  </video>
</div>
<div class="comment-container">
  <form method="post">
    {% csrf_token %}
    {{comment_form.as_p}}
    {% if request.user.is_authenticated %}
      <input type="submit" value="Submit">
    {% else %}
      <input type="submit" value="Submit"disabled>
    {% endif %}
  </form>
  <div class="main-comment-section">
    {{ comments.count }}
    {% for comment in comments %}
      <blockquote class="blockquote">
        <p class="mb-0">{{ comment.content }}</p>
        <footer class="blockquote-footer">by <cite title="Source Title">{{ comment.user }}</cite></footer>
      </blockquote>
    {% endfor %}
  </div>
</div>

{%csrf_令牌%}
{{comment_form.as_p}}
{%if request.user.u经过身份验证%}
{%else%}
{%endif%}
{{comments.count}
{注释%中的注释为%}
{{comment.content}
通过{comment.user}
{%endfor%}

---

有任何问题请告诉我；）

您可以将其添加到上下文词典

“post”：post

，并从上下文中删除

“comments”：comments，

然后在模板中，您可以循环浏览注释，如

{% for comment in post.comment_set.all %}
  <blockquote class="blockquote">
    <p class="mb-0">{{ comment.content }}</p>
    <footer class="blockquote-footer">by <cite title="Source Title">{{ comment.user }}</cite></footer>
  </blockquote>
{% endfor %}

{%用于post.comment\u set.all%}
{{comment.content}
通过{comment.user}
{%endfor%}

那视频呢

<video class="video" width='400'>
  <source src='{{ post.video.url }}' type='video/mp4'>
</video>

---

另外，当您使用

comment.objects.create（）

方法时，无需调用

comment.save（）

。

create（）
确保您已维护媒体文件设置。在settings.py文件中：

MEDIA_ROOT= os.path.join(os.path.dirname(BASE_DIR), "media/")```
Then in your main urls.py:

```urlpatterns = patterns('',
    # ... the rest of your URLconf goes here ... ) + static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)

还要确保在模板中添加
enctype=“multipart/form data
in-form标记

有关更多信息，请参阅