Mongoose/Mongodb: Exclude fields from populated query data

Question

I use the following mongoose query in a MEAN-environment to find and output a particular author and his corresponding books.

Author
.findOne({personcode: co         


        

Answer 1

The second parameter of populate is a field selection string, so you can do this as:

Author
  .findOne({personcode: code})
  .select('-_id -__v')
  .populate('bookids', '-_id -__v')
  .exec(function (err, data) {
    //foo
});

Note that you should combine your field selections into a single string.