How to store data correctly in mongoose?

Question

MongoDB

Schema itself

var Marker = mongoose.Schema({
  date:  Date,
  time: Date,
  place: String,
  theme: Number,
  peopleCount: Number,
  creator: { type: Schema.Types.ObjectId, ref: 'User' },
  persons: [{ type: Schema.Types.ObjectId, ref: 'User' }],
  description: {
    type: String,
  }
});

I save by sending PATCH with new parameters.
in the controller on the server side I try to update

exports.update = function(data, fn) {
  Marker.findOne({ _id: data.params.id }, function(err, marker) {
    if(err) throw err;
    _.extend(marker, data.body);
    console.log(marker);
    marker.save(function(err, marker) {
      if (err) throw err;
      fn(marker);
    });
  });
};

gives an error message

Answer 1

Validation is down. Try doing console.log(err.errors) to see a list of errors.