Gabe De Luca gabeio

I've developed a useful feature in KeystoneJS that lets you populate a relationship from either side, while only storing the data on one side, and am looking for feedback on whether it is something that could / should be brought back into mongoose itself. (It might be possible to add as a separate package but I suspect there'd be too much rewriting of mongoose internals for that to be a good idea).

I've added this as an issue in mongoose for consideration: #1888 but am leaving this gist in place because the examples are easier to read.

I've used Posts and Categories as a basic, contrived example to demonstrate what I'm talking about here; in reality you'd rarely load all the posts for a category but there are other real world cases where it's less unreasonable you'd want to do this, and Posts + Categories is an easy way to demo it.

The problem

The built-in population feature is really useful; not just for

	/*
	moduble: setupDB.ls
	Run this to setup the level db with arrays
	*/
	require! {
	'levelup'
	'leveldown'
	'bcrypt'
	}

	#!/bin/sh

	echo "What should the Application be called (no spaces allowed e.g. GCal)?"
	read inputline
	name="$inputline"

	echo "What is the url (e.g. https://www.google.com/calendar/render)?"
	read inputline
	url="$inputline"

	var del, gulp, gulpMocha, gulpLivescript, livescript, paths;
	del = require('del');
	gulp = require('gulp');
	gulpMocha = require('gulp-mocha');
	gulpLivescript = require('gulp-livescript');
	livescript = gulpLivescript != null ? gulpLivescript : void 8;
	paths = [
	{
	scripts: './src/*.ls',
	tests: './test/*.ls'

	#!/System/Library/Frameworks/Ruby.framework/Versions/Current/usr/bin/ruby
	# This script installs to /usr/local only. To install elsewhere you can just
	# untar https://github.com/Homebrew/homebrew/tarball/master anywhere you like or
	# change the value of HOMEBREW_PREFIX.
	HOMEBREW_PREFIX = '/usr/local'
	HOMEBREW_CACHE = '/Library/Caches/Homebrew'
	HOMEBREW_REPO = 'https://github.com/Homebrew/homebrew'

	module Tty extend self
	def blue; bold 34; end

	set nocompatible
	execute pathogen#infect()
	syntax on
	set backspace=2
	set ignorecase
	set smartcase
	set autoindent
	set noexpandtab
	set tabstop=4
	set shiftwidth=4

	X-Forwarded-Protocol: https
	X-Forwarded-Ssl: on
	X-Url-Scheme: https
	X-Forwarded-Proto: https
	Front-End-Https: on
	X-FORWARDED-PROTOCOL: https

	lower = ["a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p","q","r","s","t","u","v","w","x","y","z"]
	upper = ["A","B","C","D","E","F","G","H","I","J","K","L","M","N","O","P","Q","R","S","T","U","V","W","X","Y","Z"]
	num = ["0","1","2","3","4","5","6","7","8","9"]
	alphanum = lower ++ upper ++ num
	newpass = []
	for x from 1 to 7 # change 7 to length of password you want
	index = Math.floor alphanum.length * Math.random()
	newpass.push alphanum[index]
	console.log newpass.join ''