CODEWITHSUNDEEP
javascriptnode.jsmongodbexpressmongoose
tellingeric
tellingeric

Reputation: 11

node.js - populate embedded document in Mongoose

Given:

var productSchema = new Schema({
  name: String,
  details : [{ name: String,  description: String }]
})


var listSchema = new Schema({
  name: String,
  products: [{
    product_id: { type: Schema.Types.ObjectId, ref: 'Product' },
    product_vid: { type: Schema.Types.ObjectId, ref: 'Product.details' }
    }]
})

How can I do the query for the List with only corresponding product_id with one details matching product_vid in it?

List.findById(list_id)
    .populate({
       path: 'products.product_id',
       populate: {
         path: 'products.product_vid'
       }
     })
     .exec(function(err, doc){
       ......
}

Upvotes: 1

Views: 712

Answers (2)

Azeem Malik
Azeem Malik

Reputation: 490

There is no need for 

product_vid: {
type: Schema.Types.ObjectId, ref: 'Product.details'}

in listSchema.

var productSchema = new Schema({
name: String,
details : [{ name: String,  description: String }]
     })


var listSchema = new Schema({
   name: String,
   products: [{ type: Schema.Types.ObjectId, ref: 'Product' }])

      List.findById(list_id)
        .populate({
              path: 'products',
              match: { details: "your matching value"})
           .exec(function(err, doc){
                  ......
      }

Upvotes: 3

enRaiser
enRaiser

Reputation: 2636

This is wrong

product_vid: { type: Schema.Types.ObjectId, ref: 'Product.details' }

detail is field of a model. and not model itself.

it should be something like..

 var listSchema = new Schema({
   name: String,
   products: [{ type: Schema.Types.ObjectId, ref: 'Product' }],
})

and then 

 populate('products')

or probably 

 populate('products products.details')

Just try and let me know.

Upvotes: 0

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