Correct example for GH-247

GH-247.js

// Example works also works if you swap the commented lines into the code, and comment
// the corresponding uncommented lines.

var mongoose = require('mongoose')
, Schema = mongoose.Schema ;

mongoose.connect('mongodb://localhost/test');

var Item = new Schema({
    cat_id: Number
  , produces: {type: Schema.Types.Mixed, default: {}} // Mixed
//  , produces: {
//      cpu_frequency: Number
//    }
});

Item = mongoose.model('Item', Item);

Item.create({
  cat_id: 2,
//  produces: { cpu_frequency: 100 }
  'produces.cpu_frequency': 100 
}, {
  cat_id: 2,
//  produces: { cpu_frequency: 3800 }
  'produces.cpu_frequency': 3799
}, {
  cat_id: 2,
//  produces: { cpu_frequency: 3801 }
  'produces.cpu_frequency': 3800
}, function (err) {
  Item
    .where('cat_id', 2)
    .where('produces.cpu_frequency').gte(90).lte(3800)
    .limit(20)
    .find( function (err, items) {
      console.log(items);
      items = items.map( function (item) {
        return item.toObject();
      }); 
      mongoose.disconnect();
    }); 
});


// Output should be
// [ { produces: { cpu_frequency: 3800 },
//     cat_id: 2,
//     _id: 4df005d5ec7b5bf702000001 },
//   { produces: { cpu_frequency: 3800 },
//     cat_id: 2,
//     _id: 4df005d5ec7b5bf702000002 },
//   { produces: { cpu_frequency: 3800 },
//     cat_id: 2,
//     _id: 4df005d5ec7b5bf702000003 } ]