deno.land / x / mongoose@6.7.5 / examples / population / population-plain-objects.js
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'use strict';const mongoose = require('../../lib');const Schema = mongoose.Schema;
console.log('Running mongoose version %s', mongoose.version);
/** * Console schema */
const consoleSchema = Schema({ name: String, manufacturer: String, released: Date});const Console = mongoose.model('Console', consoleSchema);
/** * Game schema */
const gameSchema = Schema({ name: String, developer: String, released: Date, consoles: [{ type: Schema.Types.ObjectId, ref: 'Console' }]});const Game = mongoose.model('Game', gameSchema);
/** * Connect to the console database on localhost with * the default port (27017) */
mongoose.connect('mongodb://localhost/console', function(err) { // if we failed to connect, abort if (err) throw err;
// we connected ok createData();});
/** * Data generation */
function createData() { Console.create( { name: 'Nintendo 64', manufacturer: 'Nintendo', released: 'September 29, 1996' }, function(err, nintendo64) { if (err) return done(err);
Game.create( { name: 'Legend of Zelda: Ocarina of Time', developer: 'Nintendo', released: new Date('November 21, 1998'), consoles: [nintendo64] }, function(err) { if (err) return done(err); example(); } ); } );}
/** * Population */
function example() { Game .findOne({ name: /^Legend of Zelda/ }) .populate('consoles') .lean() // just return plain objects, not documents wrapped by mongoose .exec(function(err, ocinara) { if (err) return done(err);
console.log( '"%s" was released for the %s on %s', ocinara.name, ocinara.consoles[0].name, ocinara.released.toLocaleDateString() );
done(); });}
function done(err) { if (err) console.error(err); Console.remove(function() { Game.remove(function() { mongoose.disconnect(); }); });}
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