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96
node_modules/mongoose/examples/population/population-plain-objects.js
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96
node_modules/mongoose/examples/population/population-plain-objects.js
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var mongoose = require('../../lib')
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var Schema = mongoose.Schema;
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console.log('Running mongoose version %s', mongoose.version);
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/**
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* Console schema
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*/
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var consoleSchema = Schema({
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name: String
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, manufacturer: String
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, released: Date
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})
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var Console = mongoose.model('Console', consoleSchema);
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/**
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* Game schema
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*/
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var gameSchema = Schema({
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name: String
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, developer: String
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, released: Date
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, consoles: [{ type: Schema.Types.ObjectId, ref: 'Console' }]
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})
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var Game = mongoose.model('Game', gameSchema);
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/**
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* Connect to the console database on localhost with
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* the default port (27017)
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*/
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mongoose.connect('mongodb://localhost/console', function (err) {
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// if we failed to connect, abort
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if (err) throw err;
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// we connected ok
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createData();
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})
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/**
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* Data generation
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*/
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function createData () {
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Console.create({
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name: 'Nintendo 64'
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, manufacturer: 'Nintendo'
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, released: 'September 29, 1996'
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}, function (err, nintendo64) {
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if (err) return done(err);
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Game.create({
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name: 'Legend of Zelda: Ocarina of Time'
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, developer: 'Nintendo'
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, released: new Date('November 21, 1998')
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, consoles: [nintendo64]
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}, function (err) {
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if (err) return done(err);
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example();
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})
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})
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}
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/**
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* Population
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*/
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function example () {
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Game
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.findOne({ name: /^Legend of Zelda/ })
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.populate('consoles')
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.lean() // just return plain objects, not documents wrapped by mongoose
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.exec(function (err, ocinara) {
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if (err) return done(err);
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console.log(
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'"%s" was released for the %s on %s'
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, ocinara.name
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, ocinara.consoles[0].name
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, ocinara.released.toLocaleDateString());
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done();
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})
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}
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function done (err) {
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if (err) console.error(err);
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Console.remove(function () {
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Game.remove(function () {
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mongoose.disconnect();
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})
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})
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}
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