MattVon MattVon - 2 months ago 9x
Javascript Question

How can I have multiple controller files?


So after viewing your responses and making minor changes to my code, I found a simple typo which prevented me to reach the result I was after. So thank you all to helping with where I was going wrong, I've now got the controllers seperated and everything's working as planned!


I am currently developing a hybrid mobile application using Cordova, Ionic and AngularJS within Visual Studio 2015. Due to the vast amount of code I have in my single controller.js file, I want to separate the code so I have a .js controller file per template; instead of everything in one file. Unfortunately, I I do not understand how to pull this off (learning AngularJS still). I've done some researched but the majority of examples I have seen show a very simple demo, which I replicate with my own code but it still doesn't work. So I was hoping if someone can give me an insight where I may be going wrong.

File Structure in /www

  • index.html


  • app.js

  • controllers.js


  • login.js

  • sales.js


  • login.html

  • sales.html

/js/app .js

angular.module('main', ['ionic', 'main.controllers', 'chart.js', 'ngCordova', 'ngIOS9UIWebViewPatch', 'angular.filter'])

.config(function ($stateProvider, $urlRouterProvider, $ionicConfigProvider) {

.state('login', {
cache: false,
url: "/login",
templateUrl: "templates/login.html",
controller: "LoginCtrl"

.state('sales', {
cache: false,
url: "/sales",
templateUrl: "templates/sales.html",
controller: "SalesCtrl"



angular.module('main.controllers', ['ionic', 'ngCordova']);


angular.module('main.controllers', [])
.controller("LoginCtrl", function ($scope, $state, $cordovaSQLite, $timeout, $ionicPopup, $cordovaDevice, $ionicLoading, $cordovaKeyboard, $cordovaToast) {
template: 'Loading...'


angular.module('main.controllers', [])

.controller("SalesCtrl", function ($scope, $state, $http, $ionicLoading, $cordovaSQLite, $cordovaToast) {
template: 'Loading data...'

Following this structure, I get this error (quote below):,%20got%20undefined

Argument 'LoginCtrl' is not a function, got undefined

I managed to get it to work slightly, only when I had login.js and not sales.js, but of course $state.* stopped working when trying to change template. So I know that wasn't 100% either. Hopefully this will make sense, fi it doesn't just clarify what I may be not making sense in, and I shall explain more if need be, appreciate any help. :)



<!-- App references -->
<link href="css/ionic.css" rel="stylesheet" />
<link href="css/angular-chart.css" rel="stylesheet" />
<link href="css/index.css" rel="stylesheet" />

<script src="lib/ionic/ionic.bundle.js"></script>
<script src="lib/ngCordova/ng-cordova.js"></script> <!-- Must be after Ionic but before Cordova-->
<script src="cordova.js"></script>
<script src="scripts/index.js"></script>

<script src="lib/angular-cookies/angular-cookies.min.js"></script>
<script src="lib/angular-chart/Chart.min.js"></script>
<script src="lib/angular-chart/angular-chart.min.js"></script>
<script src="lib/angular-ios9-uiwebview.patch.js"></script>
<script src="lib/angular-filter/angular-filter.min.js"></script>
<script src="js/directives/favourite.js"></script>

<script src="js/controllers.js"></script>
<script src="js/controllers/login.js"></script>
<script src="js/controllers/sales.js"></script>
<script src="js/app.js"></script>


You are redefining your module again & again in your each controller file. Which is clearing out old registered controller from that module.

You have already defined that module in your /js/controllers.js.

angular.module('main.controllers', ['ionic', 'ngCordova']);

So reuse that module in other Javascript files when your are binding any component to it as below.