Hi so I have this test data in mongo for mongoengine that I use for storing user's cart: { "_id" : ObjectId("55e492ac516ddc17a8b07d2a"), "user" : ObjectId("55e3f236516ddc78296968be"), "items" :...

Given a collection like this:.. [ { "_id" : ObjectId("5546329a470000850084a621"), "name": "Joe", "surname": "Smith", "accounts": [ { "_id" : ObjectId("5546329a470000850084a655"), "default"...

I have a document in mongodb collection like this: { _id: 133, Name: "abc", Price: 20 } I would like to add a new field "PackSizes" which may be or not may be of an array type, and then would...

I have a list of (mongodb) Embedded Documents within one Document and I am interested in adding a new embedded document to the list of the existing ones. As far as I have researched, I can use $a...