main.js

define([
    'jquery',
    'underscore',
    'backbone',
    'router',
    'collections/widget-list',
    'amplify'
], function($, _, Backbone, router, WidgetCollection, amplify){
    var init = function(){
        var defaults = amplify.store('defaults');
        if (defaults){
            _.each(defaults.split(','), function(key){
                amplify.store(key, null);
            });
            amplify.store('defaults', null);
        }
        $.getJSON('default-widgets.json', function(data){
            var coll = new WidgetCollection(data, {store: 'defaults'});
            coll.each(function(model){
                model.save();
            });
        })
    }
    return {
        init: init
    };
});