Mongoose：按子文档 ObjectId 属性查询

Question

I have the following query:

Stuff.findOneAndUpdate({ status: 'open', ...query }, value, { new: true });

where query is: { 'buyer.user': mongoose.Types.ObjectId(user._id) } ;

As you can see, my Stuff model has a subdocument buyer , that has a user attribute with an ObjectId

If I run that exact query in mongo directly it returns the result I want but, it always returns empty when using mongoose.

Do you have any ideas why?

Edit

This is my schema:

const StuffSchema = new mongoose.Schema(
  {
    items: [{ type: Donation.schema, default: [] }],
    status: { type: String, default: 'open', enum: ['open', 'purchase_completed'] },
    total: Number,
    buyer: { type: BuyerDataSchema },
  },
  { timestamps: true }
);

and

const BuyerDataSchema = new mongoose.Schema(
  {
    name: { type: String, required: false },
    email: { type: String, required: false },
    phone: { type: String, default: '' },

    user: { type: mongoose.Schema.Types.ObjectId, ref: 'User' },
  },
  { _id: false }
);

Does this help?

Answer 1

When you are using a ref and want to include that subdocument into a result of query you need to call populate functuon with the name of a field eg

   Stuff.find(...).populate("user")