Creating nested route app in angular using angular

I want to create angular nested routes in my application using angular-ui-router with multi sub-modules;

In "ui-router" we can use multi views in our main app config as $stateProvider, but can't switch between sub-modules when you are in other module.

For example when you are in "module1" you can not state to "module2".

So, How can I switch between my modules?

In this application you can route between sub modules easily:

Create main application "mainApp.js"

angular.module("mainApp", [
  "ui.router"
]);

angular.module("mainApp").config([
  "$stateProvider", "$urlRouterProvider",
  function($stateProvider, $urlRouterProvider) {

    $urlRouterProvider.otherwise("/");

    $stateProvider
      .state("/", {
        url: "/",
        templateUrl: "/Application/Partials/home.html"
      });
  }
]);

Create "index.html" for your mainApp:

<!DOCTYPE html>
<html ng-app="mainApp">

<head>
  <title>Angular Nested Routes with angula-ui-route</title>
</head>

<body>
  <fieldset>
    <legend>main menu</legend>
    <a ui-sref="/">home</a>
  </fieldset>

  <ui-view></ui-view>

  <script src="/Scripts/jquery-2.1.4.js"></script>
  <script src="/Scripts/angular.js"></script>
  <script src="/Scripts/angular-ui-router.js"></script>

  <!--Main Module-->
  <script src="/Application/app.js"></script>
</body>

</html>

Create your Partials "home.html"
```
<h1>Home</h1>

 
```
Add "registerStateApp" in your project

angular.module("registerStateApp", []);
angular.module("registerStateApp").provider("$registerState", function ($stateProvider) {
    var routes = [];

    this.$set = function (stateProvider) {
        var satetProviders = {
            states: stateProvider
        }

        routes.push(satetProviders);
    };

    this.$get = function () {
        return angular.forEach(routes, function (route) {
            angular.forEach(route.states, function (state) {
                $stateProvider.state(state.state, {
                    parent: state.parent,
                    moduleName: parent,
                    stateName: child,
                    name: state.pageName,
                    url: state.url,
                    views: state.views,
                    pageInfo: state.pageInfo
                });
            });
        });
    };
});

Update "mainApp.js" & inject "registerStateApp" in your main application

angular.module("mainApp", [
  "ui.router",
  "registerStateApp"
]);

angular.module("mainApp").config([
  "$stateProvider", "$urlRouterProvider", "$registerStateProvider",
  function($stateProvider, $urlRouterProvider, $registerStateProvider) {
    
    $urlRouterProvider.otherwise("/");
    
    //registerStateApp
    $registerStateProvider.$get();
    
    //your main application routes
    $stateProvider
      .state("/", {
        url: "/",
        templateUrl: "/Application/Partials/home.html"
      });
  }
]);

Create your sub-modules

angular.module("module1", []);

angular.module("module1").config(["$registerStateProvider",
  function($registerStateProvider) {

    //This is your routing in sub module
    var stateProvider = [{
      name: "module1",
      state: "module1.page1",
      url: "/module1",
      views: {
        "module1": {
          templateUrl: "/Application/Modules/Module1/Partials/page1.html"
        }
      }
    }];

    $registerStateProvider.$set(stateProvider);
  }
]);

//module2
angular.module("module2", []);

angular.module("module2").config(["$registerStateProvider",
  function($registerStateProvider) {
    var stateProvider = [{
      name: "module2",
      state: "module2.page1",
      url: "/module2",
      views: {
        "module2": {
          templateUrl: "/Application/Modules/Module2/Partials/page1.html"
        }
      }
    }];

    $registerStateProvider.$set(stateProvider);
  }
]);

Create sub-module main view

<!DOCTYPE html>
<html ng-app="module1">

<head>
  <title>module1</title>
</head>

<body>
  <h1>This is module1</h1>
  <button ui-sref="module2.page1">go to module2 page 1</button>

  <div ui-view="module1"></div>
</body>

</html>

<!--module2-->

<!DOCTYPE html>
<html ng-app="module2">

<head>
  <title>module2</title>
</head>

<body>
  <h1>This is module2</h1>
  <button ui-sref="module1.page1">go to module1 page 1</button>

  <div ui-view="module2"></div>
</body>

</html>

Add your sub-modules state in your main app "mainApp.js"

angular.module("mainApp", [
  "ui.router",
  "registerStateApp",
  "module1",
  "module2"
]);

angular.module("mainApp").config([
  "$stateProvider", "$urlRouterProvider", "$registerStateProvider",
  function($stateProvider, $urlRouterProvider, $registerStateProvider) {
    $urlRouterProvider.otherwise("/");
    $registerStateProvider.$get();
    $stateProvider
      .state("/", {
        url: "/",
        templateUrl: "/Application/Partials/home.html"
      })
      .state("module1", {
        url: "/module1",
        templateUrl: "/Application/Modules/Module1/index.html"
      })
      .state("module2", {
        url: "/module2",
        templateUrl: "/Application/Modules/Module2/index.html"
      });
  }
]);