[Answered ]-Django prepopulate form in UpdateView

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1👍

You can pass that instance of the Comment model which you’d like to update in CommetForm. In the get_form_kwargs() method, you can add the instance keyword argument to the form kwargs with the instance of the Comment model to update. Then, the CommentForm will be pre-populated with the data from that instance while displaying in frontend so:

class CommentUpdate(LoginRequiredMixin, UserPassesTestMixin, generic.UpdateView):
    
    model = Comment
    template_name = 'blog/post_detail.html'
    form_class = CommentForm
 
    def get_success_url(self):
        post = Post.objects.get(pk=self.object.post.pk)
        messages.info(self.request, 'Comment updated')
        return post.get_absolute_url()

    def form_valid(self, form):
        form.instance.author = self.request.user
        return super().form_valid(form)

    def get_form_kwargs(self):
        kwargs = super().get_form_kwargs()
        kwargs['instance'] = self.get_object()
        return kwargs

    def test_func(self):
        comment = self.get_object()
        if self.request.user == comment.author:
            return True
        return False
👤Sunderam Dubey

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