Django：如何遍历模板中的线程注释？

Question

I've created a basic BranchComment model (ie: a threaded comment system) which has two possible foreign key attributes. One foreign key attribute is to the PageInfo model if it is a parent comment on someone's page (ie: a new post) and another foreign key attribute if the comment is a reply to another comment in which case the second foreign key is set to one of the actual BranchComment objects, indicating which comment it is a reply to. This way, comments can be infinitely chained to each other and/or used as a basic new post on a page.

Here's the model:

class BranchComment(models.Model):
    childtag = models.ForeignKey('self', related_name='child', null=True, blank=True)
    commentcontent = models.CharField(max_length=5000)
    parenttag = models.ForeignKey('PageInfo', related_name='parent', null=True, blank=True)
    commentdate = models.DateTimeField(auto_now_add=True)
    usercommenttag = models.ForeignKey(User, null=True, blank=True) #who posted the comment

     def __unicode__(self):
        return self.commentcontent

Obviously, you can get all the new posts on a page using the basic:

newposts = BranchComment.objects.filter(parenttag=PageInfo_instance)

Then I can loop over each parentcomment in the queryset and get the associated replies:

for post in newposts:
    replies = BranchComment.objects.filter(childtag=post).order_by('-commentdate')

So now my question is that I have a nice queryset of all the parentcomments (ie: original posts) and a nice queryset of ordered replies to each post, but how do I match them to one another in the template file? Thanks for any advice.

Answer 1

for post in newposts:
    replies = BranchComment.objects.filter(childtag=post).order_by('-commentdate')

replies will be BranchComment objects with childtag=post of last post in newposts .

Some ideas:

replies = BranchComment.objects.filter(id__in=newposts).order_by('-commentdate')

In templates you can access related objects, for example reply.childtag or all children of newpost like this: newpost.child . And, for example, compare them:

{% if newpost == reply.childtag %}...{% endif %}

Could you provide more details, please? Thanks!