Django 如何编辑评论

Question

how do I edit an existing comment, when a user comment on a post that user can be able to edit his/her comment.

class Comments(models.Model):
    user = models.ForeignKey(settings.AUTH_USER_MODEL)
    commented_image = models.ForeignKey(Image,....) 
    comment_post = models.TextField() 
   ....... 

#urls
path('comments/<id>/', comments, name='comments'),
path('comments/<int:id>/<int:comment_id>, comments, name=' comments')

def comments(request, id, comment_id=None):
    post = get_object_or_404(Image, id=id)
    if request.method == 'POST':
        if comment_id:
            edit_form = CommentForm(#codes here) 
        else:
                edit_form = CommentForm(data=request.POST)

            form = CommentForm(request.POST)
            if form.is_form():
                comment = form.save(commit=False)
                comment.user = request.user
                comment.commented_image = post
                comment.save()
                return redirect..... 

Answer 1

You have to pass comment id in the updating function like:

path('comment/<int:comment_id>/update' ...

and do the following

CommentForm(instance=Comment.objects.get(id=comment_id), data=request.POST)

UPDATE: to make the same view handles both create and update add new URL that point to same view (and place it under the original one):

path('comment/<int:id>/<int:comment_id>/', name='comment_update')

and update your view like this:

def comments(request, id, comment_id=None):
    post = get_object_or_404(Image, id=id)
    if request.method == 'POST':
        if comment_id:
            form = CommentForm(instance=Comment.objects.get(id=comment_id), data=request.POST)
        else:
            form = CommentForm(data=request.POST)
    # Rest of your code.

and in your template: if this form is for update: use <form method="POST" action="{% url 'comment_update' post.id comment.id %}">

if it's create form just use: <form method="POST" action="{% url 'comment_create' post.id %}">

Answer 2

Can you provide a screenshot of your page?

post = get_object_or_404(Image)

why you pass image? it should be your ID that are from I guess your post request.