firebase-angular: refactor controller

labs/architecture-examples/firebase-angular/js/controllers/todoCtrl.js

-/*global todomvc, angular */
+/*global todomvc, angular, Firebase */
 'use strict';
 
 /**
@@ -7,28 +7,15 @@
  * - exposes the model to the template and provides event handlers
  */
 todomvc.controller('TodoCtrl', function TodoCtrl($scope, $location, angularFire) {
-	var url = 'https://todomvc-angular.firebaseio.com/';
-
-	$scope.newTodo = '';
-	$scope.editedTodo = null;
-
-	if ($location.path() === '') {
-		$location.path('/');
-	}
-	$scope.location = $location;
-
-	angularFire(url, $scope, 'todos', {}).then(function() {
-		onDataLoaded($scope, $location, url);
-	});
-});
-
-function onDataLoaded($scope, $location, url) {
+	this.onDataLoaded = function onDataLoaded($scope, $location, url) {
 		$scope.$watch('todos', function () {
 			var total = 0;
 			var remaining = 0;
-		angular.forEach($scope.todos, function(todo) {
+			angular.forEach($scope.todos, function (todo) {
 				total++;
-			if (todo.completed === false) remaining++;
+				if (todo.completed === false) {
+					remaining++;
+				}
 			});
 			$scope.remainingCount = remaining;
 			$scope.completedCount = total - remaining;
@@ -72,7 +59,9 @@ function onDataLoaded($scope, $location, url) {
 		$scope.clearCompletedTodos = function () {
 			var notCompleted = {};
 			angular.forEach($scope.todos, function (todo, id) {
-			if (!todo.completed) notCompleted[id] = todo;
+				if (!todo.completed) {
+					notCompleted[id] = todo;
+				}
 			});
 			$scope.todos = notCompleted;
 		};
@@ -82,4 +71,18 @@ function onDataLoaded($scope, $location, url) {
 				todo.completed = completed;
 			});
 		};
-}
+	};
\ No newline at end of file
+
+	var url = 'https://todomvc-angular.firebaseio.com/';
+	$scope.newTodo = '';
+	$scope.editedTodo = null;
+
+	if ($location.path() === '') {
+		$location.path('/');
+	}
+	$scope.location = $location;
+
+	angularFire(url, $scope, 'todos', {}).then(function () {
+		this.onDataLoaded($scope, $location, url);
+	}.bind(this));
+});