gistfile1.txt

angular.module('myApp')
	.factory('Model', function Model(Resource) {
		function Model(mdl){
			var model = mdl || {};
			// attributes of the class goes here...
			this.attr = model.attr;
		}

		var instantiate = function(col, callback) {
			var collection = (Array.isArray(col)) ? col : [col];
			collection.map(function(el, index) {
				collection[index] = new Model(el);
			});
			callback(collection);
		}

		// You can get the collection retreived directly from the Model or callback
		Model.collection = [];

		// You can access the instance retrieved from the model or callback
		Model.instance = {};

		// General method to retreive a collection from an endpoint
		Model.findCollection = function(params, callback) {
			Resource.query(params, function(data) {
				instantiate(data, function(collection) {
					Model.collection = data;
					callback(data);
				});
			});
		}

		// not a real "facade" but simplifies the queries to the endpoint.
		Model.findCustomCollection = function(callback) {
		var params = { /* custom params here... */ };
			Model.findCollection(params, function(data) {
				callback(data);
			});
		}

		// retreives a single instance, you can access it through the Model or cb
		Model.find = function(id, callback) {
			Resource.get({ id: id }, function(data) {
				Model.instance = new Model(data)
				callback(Model.instance);
			});
		}

		Model.prototype.save = function(callback) {
			model = new Resource(this.model);
			model.$save(callback());
		}

		Model.prototype.update = function(callback) {
			model = new Resource(this.model);
			model.$update(callback());
		}

		Model.prototype.delete = function(callback) {
			model = new Resource(this.model);
			model.$remove(callback());
		}

		Model.prototype.customMethod = function(params) {
			// code here
		}

		return Model;
	});