How to exclude fields from being "upsert-ed" in Mongoose?

Question

How to exclude fields from being "upsert-ed" in Mongoose?

var UserData = function(){
    var self = this;
    this.schema = Schema({
        userID: String,
        firstName: String,
        lastName: String,
        ...
        //many other fields.
        ...
        isActive: {type: "Boolean", default: true}
    },  { collection: 'UserData' });

    this.model = db.model('UserData', self.schema);

    this.upsert = function(object){
        //some logic
        self.model.update({userID: object.userID}, object, {upsert: true}, function(err){...});
    };
}

This code work fine except for the isActive will be overwritten during the upsert.

I want to implement the logic like this:

Default isActive to be true for new record.
When do upsert, keep isActive unchanged.

How to achieve that? Thanks in advance!

javascript
node.js
mongoose
upsert

Answer 1

Convert the document to an object and remove the property that you don't want to write. Then upsert the object.

this.upsert = function (doc) {
    var object = doc.toObject();
    delete object.isActive;

    self.model.update({userID: object.userID}, object, {upsert: true}, function(err){...});
};