I have a Post model and there is array of comments inside him (objectsId that refer to the Comment model). When I am deleting a post i want to delete his comments too I was trying to use forEach and its worked :

post.comments.forEach(async (comment) => {
  await comment.remove({ session: postDeletingSession });
});

I am sure that there is a better way to do that, can somone help me to find one?

CodePudding user response：

If post.comments is an array of ObjectIDs, you can use Model.deleteMany() as shown below:

await comment.deleteMany({ _id: {  $in: post.comments } })