angular ui-router:在解析中获取 toState 的 $state 信息 [英] angular ui-router: get $state info of toState in resolve

问题描述

更新:从 1.0.0alpha0 开始，这应该可以在 angular-ui-router 中实现.请参阅发行说明 https://github.com/angular-ui/ui-router/release/tag/1.0.0alpha0 和问题 https://github.com/angular-ui/ui-router/issues/1018 我创建的.

Update: this should be possible in angular-ui-router as of 1.0.0alpha0. See the release notes https://github.com/angular-ui/ui-router/releases/tag/1.0.0alpha0 and the issue https://github.com/angular-ui/ui-router/issues/1018 I created.

我想在处理解析时使用 angular ui-router 访问应用程序导航到的状态名称和其他属性.

I would like to access the state's name and other attributes the app is navigating to using angular ui-router when working on the resolve.

原因:我想在允许应用程序进入该页面之前异步加载一些用户数据(包括他们的访问权限).

The reason: I want load some user data (including their access rights) asynchronously before allowing the app the enter that page.

目前这是不可能的，因为将 $state 注入到 resolve 中指向的是您导航离开表单的状态，而不是您导航到的状态.

Currently this is not possible because injecting $state into the resolve points to the state you're navigating away form, not to the one you're navigating to.

我知道我可以:

• 使用 $rootScope('$stateChangeStart') 在其他地方获取 toState 并将其保存在我的设置服务中.不过我觉得有点乱.
• 将状态硬编码到解析中，但我不想对所有页面重复使用解析

我也在ui-router github上创建了一个问题(如果你有兴趣，请+1！):https://github.com/angular-ui/ui-router/issues/1018

I also created an issue on the ui-router github (Please + 1 if you are interested!): https://github.com/angular-ui/ui-router/issues/1018

到目前为止，这是我的代码.任何帮助表示赞赏！

Here's my code so far. Any help appreciated!

.config(function($stateProvider) {

    $stateProvider.state('somePage', {
        // ..
        resolve: {
            userData: function($stateParams, $state, Settings) {
                return Settings.getUserData() // load user data asynchronously
                    .then(function (userData) {
                        console.log($stateParams);
                        console.log($state);
                        // Problem: $state still points to the state you're navigating away from
                    });
            }
        }
    });
});

推荐答案

Ui-Router 1.x 更新

$provide.decorator('$state', ($delegate, $transitions) => {
    $transitions.onStart({}, (trans) => {
      $delegate.toParams = trans.params()
      $delegate.next = trans.to().name
    })
    return $delegate
  })

Ui-路由器 0.x

你总是可以用 next 和 toParams 属性来修饰 $state:

Ui-Router 0.x

You can always decorate $state with next and toParams properties:

angular.config(function($provide) {
  $provide.decorator('$state', function($delegate, $rootScope) {
    $rootScope.$on('$stateChangeStart', function(event, state, params) {
      $delegate.next = state;
      $delegate.toParams = params;
    });
    return $delegate;
  });
});

并像这样使用:

.state('myState', {
    url: '/something/{id}',
    resolve: {
        oneThing: function($state) {
            console.log($state.toParams, $state.next);
        }
    }
});

这篇关于angular ui-router:在解析中获取 toState 的 $state 信息的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！