How to populate object having array of object in mongoose?

Question

I want to populate the adminId path to User Model.
Here is the code

adminInfo: {
    _id: false,
    adminId: [{
      type: Schema.Types.ObjectId,
      ref: 'User'
    }]
 }

Here is a part of user schema:

// user schema
const UserSchema = new mongoose.Schema({
  name: {
    firstName: {
      type: String,
      trim: true,
      required: true,
    },
    lastName: {
      type: String,
      trim: true
    }
  },
  email: {
    type: String,
    trim: true,
    required: true,
    unique: true,
    lowercase: true
  },
  phone: {
    type: String,
    trim: true,
    minlength: 10,
  },
  password: {
    type: String,
    trim: true,
    required: true,
    minlength: 6
  }
});

I have tried using .populate('adminInfo.adminId') but it's giving empty array [] whereas .populate('adminInfo') giving array of admins ids but not getting populated to User model

I thought the adminInfo property is a part of the User schema, from your latest edit, I can see it's not. Can you also share the schema where the adminInfo property exists — Tunmise Ogunniyi
– Tunmise Ogunniyi, Commented Jun 23, 2020 at 18:33
@Tunmee If adminInfo property will be a part of User schema then why I will refer that User schema?? adminInfo property is a part of admin schema from that I want to populate adminId to User schema — Rupesh
– Rupesh, Commented Jun 23, 2020 at 18:40

Sonu Bhatt · Accepted Answer · 2020-06-24 10:06:40Z

0

i don't think there is any problem with .populate('adminInfo.adminId') method.

are you sure that ref field is in CamelCase .

If not, try to change ref field ->

adminInfo: {
  _id: false,
  adminId: [{
    type: Schema.Types.ObjectId,
    ref: 'user'
  }]
}

answered Jun 24, 2020 at 10:06

Sonu Bhatt

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1 Comment

Rupesh Over a year ago

yes, I am sure, also it works when I am changing schena to : adminId:[ { type: Schema.Types.ObjectId, ref: 'User' }] and then .populate('adminId')

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