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// import async to make control flow simplier'use strict';
const async = require('async');
// import the rest of the normal stuffconst mongoose = require('../../lib');
require('./person.js')();
const Person = mongoose.model('Person');
// define some dummy dataconst data = [  {    name: 'bill',    age: 25,    birthday: new Date().setFullYear((new Date().getFullYear() - 25)),    gender: 'Male',    likes: ['movies', 'games', 'dogs']  },  {    name: 'mary',    age: 30,    birthday: new Date().setFullYear((new Date().getFullYear() - 30)),    gender: 'Female',    likes: ['movies', 'birds', 'cats']  },  {    name: 'bob',    age: 21,    birthday: new Date().setFullYear((new Date().getFullYear() - 21)),    gender: 'Male',    likes: ['tv', 'games', 'rabbits']  },  {    name: 'lilly',    age: 26,    birthday: new Date().setFullYear((new Date().getFullYear() - 26)),    gender: 'Female',    likes: ['books', 'cats', 'dogs']  },  {    name: 'alucard',    age: 1000,    birthday: new Date().setFullYear((new Date().getFullYear() - 1000)),    gender: 'Male',    likes: ['glasses', 'wine', 'the night']  }];

mongoose.connect('mongodb://localhost/persons', function(err) {  if (err) throw err;
  // create all of the dummy people  async.each(data, function(item, cb) {    Person.create(item, cb);  }, function(err) {    if (err) {      // handle error    }
    // lean queries return just plain javascript objects, not    // MongooseDocuments. This makes them good for high performance read    // situations
    // when using .lean() the default is true, but you can explicitly set the    // value by passing in a boolean value. IE. .lean(false)    const q = Person.find({ age: { $lt: 1000 } }).sort('age').limit(2).lean();    q.exec(function(err, results) {      if (err) throw err;      console.log('Are the results MongooseDocuments?: %s', results[0] instanceof mongoose.Document);
      console.log(results);      cleanup();    });  });});
function cleanup() {  Person.remove(function() {    mongoose.disconnect();  });}