Question 115313 in Mongodb Question posted in
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Mongodb – How to populate reference stored in different collection?

I have a following monogodb collections

coll1       coll2
--------     -------
_id          _id
name         coll1_ids

coll2 can have multiple reference to coll1 but coll1 will only have one reference

I want to populate coll2 data in coll1. Is there easier way to do it without using aggregation in Node.js.
Thank you!!!

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2

Answers


  1. 0

    You can use Mongoose virtual, you need to define virtual in coll1 schema and you can use those virtual in populate like below for example

    coll1Schema.virtual('coll2Data', {
    ref: "coll2",
    localField: "_id",
    foreignField: "coll1_ids"
});

    then you need to pass that virtual name in Mongoose populate function for example

    Coll1.find().populte("coll2Data")

    More clarification about mongoose virtual visit this link https://thecodebarbarian.com/mongoose-4.13-virtual-populate-dynamic-refs-fields

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  2. 0

    for speed, you can also use indexing in MongoDB.

    and if you use Mongoose for MongoDB connection then you can use Populate also

    enter link description here

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