AngularJS UI-Router状态参数不起作用

Question

I have a simple setup in my config()

    $stateProvider
        .state('app', {
          'url': '/app',
          'abstract': true,
          'templateUrl': 'views/layout/index.html',
          'controller': 'App'
        })

        .state('app.home', {
          'url': '/home',
          'views': {
            'appContent': {
              'templateUrl': 'views/home/index.html',
              'controller': 'Home'
            }
          }
        });
        .state('app.asd', {
          'url': '/asd/:idContact?',
          'views': {
            'appContent': {
              'templateUrl': 'views/asd/index.html',
              'controller': 'Asd'
            }
          }
        });
$urlRouterProvider.otherwise('/app/home');

If i browse app/asd/7 everything works if i browse then app/asd it redirects me

I am wondering how can i make idContact param not required ? I used the classic $routeProvider sintax for it :(

Answer 1

Try:

/asd/{idContact:/?.*}

As far as I know that is the workaround to make parameters optional in ui router. I'm not sure if there have been any recent built in implementations of this in ui router.

Answer 2

Just wanted to provide some example giving the answer to optional parameter issue. See that all in working example .

This Q&A does explain more details:

• AngularJS ui-router optional parameters

Here is a snippet of two states definition:

.state('view', {
    url: '/view/:inboxId',
    templateUrl: 'tpl.view.html',
    controller: 'viewCtrl'
}).

state('view_root', {
    url: '/view',
    templateUrl: 'tpl.view.html',
    controller: 'viewCtrl'
})

And here are some ways how to create links ( href or ui-sref ) to reach these states:

// href
<a href="#/view/1">/view/1</a> - id is passed<br />
<a href="#/view/"> /view/ </a> - is is missing - OPTIONAL like <br />
<a href="#/view">  /view  </a> - url matching the view_root

// ui-sref
<a ui-sref="view({inboxId:2})">    - id is passed<br /> 
<a ui-sref="view">                 - is is missing - OPTIONAL like
<a ui-sref="view({inboxId:null})"> - id is explicit NULL <br />
<a ui-sref="view_root()">          - url matching the view_root

That should show, that we do not have to pass some param, just must be sure that the proper url is called (the trailing / )