What is the proper way to update a listfield of embedded documents in mongoengine?

Question

I am trying to define methods for performing checks and updates to a listfield of embedded documents in mongoengine. What is the proper way of doing what I\'m trying to do. The

Answer 1

You need to find the index of the existing comment.

You can then overwrite the old comment with the new comment (where i is the index) eg:

post.comments[i] = new_comment

then just do a post.save() and mongoengine will convert that to a $set operation.

Alternatively, you could just write the $set eg:

Post.objects(pk=post.pk).update(set__comments__i=comment)