'QuerySet' 对象没有属性 'pk' ，如何从主视图获取帖子的 ID？

Question

我如何在主页视图中获取对象的 pk，我尝试用帖子制作个人博客，并且此帖子包括 cmets，我尝试获取帖子 pk 以获取与该帖子相关的 cmets，但我失败了 首先，我尝试通过将其添加到 def home_view(request, pk) 来获取 pk，但主页中的此模板 www.mywebsite.com 这意味着我知道，我无法将 pk 传递给 url，所以这对我来说失败了

我的问题是如何从主页视图中获取帖子的 ID？

我的主页视图

post = []
for u in users:
  p = Account.objects.get(username=u)
            posts = p.post_set.all()

post.append(posts)
  if len(video):  
 video = sorted(chain(*video), reverse=True, key=lambda video:         video.created_date)

# here I tried to get the pk
comma = Post.objects.all()
our_post = Post.objects.get(pk=comma.pk)
comment = PostCommentIDF.objects.filter(post=our_post)

我的帖子模型

class Post(models.Model):
 author = models.ForeignKey(Account, on_delete=models.CASCADE)
    article = models.TextField(null=True, blank=True)
    photo_article = models.ImageField(max_length=255, upload_to=get_poster_filepath)
    created_date = models.DateTimeField(auto_now_add=True)

我的评论模型

class PostCommentIDF(MPTTModel):

post = models.ForeignKey(Post, on_delete=models.CASCADE, related_name='pos_com')
parent = TreeForeignKey('self', on_delete=models.CASCADE, null=True, blank=True, related_name='post_children')
author = models.ForeignKey(Account, on_delete=models.CASCADE)
content = models.TextField()
created_date = models.DateTimeField(auto_now_add=True)
status = models.BooleanField(default=True)

主页视图网址

path('', home_screen_view, name='home'),

Answer 1

真的不知道你的目标是什么让我试试......

comma = Post.objects.all() 返回QuerySet。它类似于列表或数组。属性 pk 位于该“数组”中的每个项目上，而不是数组本身。

如果您有 QuerySet（您的帖子列表），您可以循环访问它：

comma = Post.objects.all()  # returns all posts
for post in comma:  # now post is single post
    our_post = Post.objects.get(pk=post.pk)  # now you can call 'pk' because post is single post and not QuerySet... this line is not needed because you already have post
    comment = PostCommentIDF.objects.filter(post=post)  # now get comments for that one post

编辑： 如何在视图和模板中使用：

post_with_comments = []

comma = Post.objects.all()  # returns all posts
for post in comma:  # now post is single post
    our_post = Post.objects.get(pk=post.pk)  # now you can call 'pk' because post is single post and not QuerySet... this line is not needed because you already have post
    comment = PostCommentIDF.objects.filter(post=post)  # now get comments for that one post
    post_with_comments.append({"post": post, "comments": comment})

context = {"items": post_with_comments}
return context

然后在模板中循环所有post_with_comments

{% for item in items %}
  {{ item.post }}
  {{ item.comments.count }}
{% endfor %}