Generating ID locally to avoid auto creation by mongodb

Question

Is there a way to generate an ID for a new document?

Something like

var newID = mongoose.Types.ObjectId();

// some random code that may involve db operations.

db.Model.create({_id: newID, otherProperties: {}})

When I write something like this, actual ID of the created document is always slightly larger than the newID. Is there anyway to use the newID exactly?

This code works fine when I try the same approach. Can you provide a [mcve]? — JohnnyHK, Mar 17 '16 at 04:56

score 0 · Answer 1 · answered Mar 17 '16 at 08:29

0

You should not create ID attribute for mongodb documents, It will automatically generate an ID attribute to all documents when we create them.

e.x

db.users.insert({name:'kasun',email:'kasun@gmail',address:'2street,colombo'})

this will crete an attribute called _id for the document of kasun.It is unique.Therefore don't set id attribute manually.

answered Mar 17 '16 at 08:29

Sankha Sumadhura

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`db.Model.create({ otherProperties: {}}) `skip define _id:, all documents automatically added an _id by default – Sankha Sumadhura Mar 17 '16 at 08:31
for y? it is useless – Sankha Sumadhura Mar 17 '16 at 16:10
I need to create some other documents along with the creation of a particular document. I don't want to do a create and then do another update. But that's what i ended up doing. =( – Zhen Liu Mar 22 '16 at 21:03

Generating ID locally to avoid auto creation by mongodb

1 Answers1