Factory pattern with cache in js Node https://app.pluralsight.com/player?course=javascript-practical-design-patterns&author=jonathan-mills&name=javascript-practical-design-patterns-m3&clip=12&mode=live and Factory pattern using a forEach loop ;=)

main2.js

var Task = require('./task');
var repoFactory = require('./repoFactorywCache');

var task1 = new Task(repoFactory.getRepo('task').get(1));
var task2 = new Task(repoFactory.getRepo('task').get(2));

var user = repoFactory.getRepo('user').get(1);
var project = repoFactory.getRepo('project').get(1);

task1.user = user;
task1.project = project;

//console.log(task1);
task1.save();

main3.js

var Task = require('./task');
var repoFactory = require('./repoFactory2');

var task1 = new Task(repoFactory.task.get(1));
var task2 = new Task(repoFactory.task.get(2));

var user = repoFactory.user.get(1);
var project = repoFactory.project.get(1);

task1.user = user;
task1.project = project;

//console.log(task1);
task1.save();

projectRepository.js

var repo = function () {

    var db = {};

    var get = function (id) {
        console.log('Getting project ' + id);
        return {
            name: 'New project'
        }
    }

    var save = function (project) {
        console.log('Saving ' + project.name + ' to the db');
    }
    
    
    return {
        get: get,
        save: save
    }


}

module.exports = repo;

repoFactory2.js

var repoFactory = function(){
	var repos = this;
	var repoList = [{name:'task', source:'./taskRepository'},
					{name:'user', source:'./userRepository'},
					{name:'project', source:'./projectRepository'}];

		repoList.forEach(function(repo){
			repos[repo.name] = require(repo.source)()
		});
};

module.exports = new repoFactory;

repoFactorywCache.js

var repoFactory = function (){
    this.getRepo = function (repoType){
        if(repoType==='task'){
            if(this.taskRepo){
                console.log('Retrieving from CACHE')
                return this.taskRepo;
            }else{
                this.taskRepo = require('./taskRepository')();
                return this.taskRepo;
            }
        }
        if(repoType==='user'){
            var userRepo = require('./userRepository')();
            return userRepo;
        }
        if(repoType==='project'){
            var projectRepo = require('./projectRepository')();
            return projectRepo;
        }
    }

};

module.exports = new repoFactory;

task.js

var Repo = require('./taskRepository')();

var Task = function (data) {
    this.name = data.name;
    this.completed = false;
}

Task.prototype.complete = function () {
    console.log('completing task: ' + this.name);
    this.completed = true;
};

Task.prototype.save = function () {
    console.log('saving Task: ' + this.name);
    Repo.save(this);
};

module.exports = Task;

taskRepository.js

var repo = function () {

    var db = {};

    var get = function (id) {
        console.log('Getting task ' + id);
        return {
            name: 'new task from db'
        }
    }

    var save = function (task) {
        console.log('Saving ' + task.name + ' to the db');
    }
    
    console.log('newing up task repo');
    return {
        get: get,
        save: save
    }


}

module.exports = repo;

userRepository.js

var repo = function () {

    var db = {};

    var get = function (id) {
        console.log('Getting user ' + id);
        return {
            name: 'Yone Moreno'
        }
    }

    var save = function (user) {
        console.log('Saving ' + user.name + ' to the db');
    }
    
    
    return {
        get: get,
        save: save
    }


}

module.exports = repo;