Return subarray of specific document in meteor

Question

I want to retreive specific subarray of my document, and I do that:

var userData = Meteor.users.find({_id: this.userId},{groups : {$elemMatch:{id:groupId}}});
    console.log(userData);

But the console.log() return me all data of specific user, no only the subarray, also I tried with findOne.

Someone can help me, please?

I think what you're trying to achieve is not possible with a simple mongo query. You will need to use aggregations to filter arrays, look here: http://stackoverflow.com/questions/15117030/how-to-filter-array-in-subdocument-with-mongodb — Tomasz Lenarcik, Oct 29 '16 at 06:41
maybe you could include an example of what is in your database and what you would like to have returned? — Frazer Kirkman, Oct 29 '16 at 08:17

score 1 · Answer 1 · answered Oct 28 '16 at 17:31

You are just giving search criteria about groupID - so you can do it like:

var userData = Meteor.users.find({_id: this.userId},{groupId: SOMEVARIABLE});
console.log(userData);

1 Answers1