Populate with array of fields throws TypeError: Invalid select() argument. Must be a string or object.

[ghost]

This works well in mongoose@3.0.3:

schema.statics.findGlobal = function(cb) {
  this.find({}).populate('user', 'login').limit(20).exec(cb);
}

But when I try:

schema.statics.findGlobal = function(cb) {
  this.find({}).populate('user', ['login']).limit(20).exec(cb);
}

It fails with:

TypeError: Invalid select() argument. Must be a string or object.
    at Query.select (/Users/rav/MF/instarest/node_modules/mongoose/lib/query.js:1061:11)
    at Function.findOne (/Users/rav/MF/instarest/node_modules/mongoose/lib/model.js:970:46)
    at Model.populate [as _populate] (/Users/rav/MF/instarest/node_modules/mongoose/lib/model.js:139:6)
    at next (/Users/rav/MF/instarest/node_modules/mongoose/lib/model.js:265:14)
    at next (/Users/rav/MF/instarest/node_modules/mongoose/lib/model.js:228:57)
    at next (/Users/rav/MF/instarest/node_modules/mongoose/lib/model.js:228:57)
    at next (/Users/rav/MF/instarest/node_modules/mongoose/lib/model.js:228:57)
    at next (/Users/rav/MF/instarest/node_modules/mongoose/lib/model.js:228:57)
    at next (/Users/rav/MF/instarest/node_modules/mongoose/lib/model.js:228:57)
    at next (/Users/rav/MF/instarest/node_modules/mongoose/lib/model.js:228:57)

Is it intended? How can I populate multiple fields?

[skotchio]

In mongoose 3.0 populate API was changed. http://mongoosejs.com/docs/api.html#query_Query-populate
Now the second argument of populate function is 'Object' or 'String'

Try this:

 schema.statics.findGlobal = function(cb) {
      this.find({}).populate('user', 'login field1 field2 field3').limit(20).exec(cb);
   }

[ghost]

Awesome, thanks Lary! Would be nice if http://mongoosejs.com/docs/populate.html reflect this change.

[Djisu]

Thanks, that solved my problem