Unable to $pull from single sub-document which containes array of objects

[tmfelwu]

$pull from a single subdocument fails

var ParentSchema = new Schema({
  child: childSchema
})

var ChildSchema = new Schema({
items:[itemsSchema]
})

the below query fails to pull from items array

Parent.findOneAndUpdate(query, {$pull:{'child.tems':{_id: itemID}}})

whereas the following works on mongodb

db.parent.update(query, {$pull:{'child.tems':{_id: itemID}}})

[vkarpov15]

Are you sure the issue isn't due to the fact that you typoed on 'items' in your findOneAndUpdate call?

[tmfelwu]

Yes definitely not due to the typo here. Now i am using embedded document instead of defining a subdocument that works fine.

[tmfelwu]

@vkarpov15 can you tell if there is any difference between using subdocument and embedded document, apart from using subdocument assigns a _id field where as embedded document doesnt.

Any advantage of one over the other?

[vkarpov15]

In theory they should have the same semantics. Can you show me some code that reproduces the _id issue you mentioned? That shouldn't happen either.