AttributeError at / 'dict' object 没有属性 '_mptt_meta'

Question

我尝试通过使用帖子和 MPTT 评论来构建博客，这将在主页视图www.mysite.com这意味着我无法将 pk 传递给 url 所以我尝试使用 for 循环获取帖子对象

    comma = Post.objects.all()
    comm = []
    for post in comma:
        comment = PostCommentIDF.objects.filter(post=post)
        comm.append({"comme": comment}

   context = {'comment': comm,}
   return render(request, 'personal/home.html', context)

还有我的 Mptt 评论 model

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)
    likes = models.ManyToManyField(Account, blank=True, related_name='pos_com')

我的帖子 Model

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)

模板中我的 mptt 评论

   {% recursetree comment %}
      <div id="{{ node.id }}" class="my-2 p-2" style="border: 0px solid grey">
          <div class="d-flex justify-content-between">
              {{ node.publish|naturaltime }}
              <div class="node-content mt-3">{{ node.content  }}</div>
          </div>
      </div>
   {% endrecursetree %}

Answer 1

模板上下文中的comment是字典列表。 它应该是PostCommentIDF实例的列表。 而且您正在执行多个 SQL 查询，这确实效率低下。 改用__in运算符并直接使用查询集，它也是可迭代的：

comma = Post.objects.all()
comment = PostCommentIDF.objects.filter(post__in=comma)

context = {'comment': comment,}
return render(request, 'personal/home.html', context)