gistfile1.js

		factory('Resource',['$resource',function ($resource) {
			return function(url,params,methods){
				var defaults = {
				  update: { method: 'put', isArray: false },
					patch: { method: 'patch', isArray: false },
				  create: { method: 'post' }
				}, resource = $resource(url,params,angular.extend(defaults,methods)), urlParams = {};

				// need to change $save *after* creating $resource
				resource.prototype.$save = function() {
					return this.id ? this.$update.apply(this,arguments) : this.$create.apply(this,arguments);
				};
				resource.prototype.patch = function() {
					// get the changed fields - HOW DO I DO THIS?
					var that = this, fields = this.getChangedField();
					// create a new object of this type with just these changed fields
					var obj = new this.constructor(fields);
					// call $patch
					obj.$patch().then(function () {
						// clear dirty - HOW DO I DO THIS?
						that.resetDirty();
					});
					// return myself
					return(this);
				};
				resource.prototype.getChangedFields = function () {
					
				};
				return(resource);
			};
		}]).