AngularJS - Angular UI-Router 仅重新加载嵌套视图，而不是父视图 [英] AngularJS - Angular UI-Router reload only nested view, not parent

问题描述

我知道这很长，但我需要在我的主要问题之前提供一些背景信息.我正在创建一个将分为两列的页面.这是ui-router代码:

I know this is rather long, but I need to provide some context before my main question. I am creating a page that will be split into two columns. Here is the ui-router code:

  $urlRouterProvider.otherwise("/projects/edit")

  $stateProvider
    .state('projects', {
      url: "/projects",
      template: "<div ui-view></div>"
    })

    .state('projects.edit', {
      resolve: {
        test: function(){
          console.log('projects.edit resolve called')
        }
      },
      url: "/edit",
      templateUrl: "projects.html",
      controller: function($scope, $state){
        $state.go('projects.edit.surveys')

        $scope.transitionToOtherRoute = function () {
            $state.transitionTo('otherRoute')
        }
      }
    })
    .state('projects.edit.surveys', {
      resolve: {
        items: function(){
          var randomNumberArray = [1,2,3,4,5,6]
          //this will just shuffle the array
          for(var j, x, i = randomNumberArray.length; i; j = Math.floor(Math.random() * i), x = randomNumberArray[--i], randomNumberArray[i] = randomNumberArray[j], randomNumberArray[j] = x);
          return randomNumberArray
        }
      },
      url: "/surveys",
      views: {
        "viewA": { 
            templateUrl: "projects.surveys.html",
            controller: function($scope, items, $state){
            $scope.items = items
            $scope.addSurvey = function(){
              $state.transitionTo($state.current, $state.params, { reload: true, inherit: true, notify: true })
            }
          }
        }
      }
    })
    .state('otherRoute', {
      url: "/otherRoute",
      templateUrl:"otherRoute.html"
    })

基本上，用户将被转换到 projects.edit 状态，该状态的模板如下所示:

Basically, the user will be transitioned to the projects.edit state, which has a template that looks like this:

<h3>PROJECTS.HTML PARTIAL</h3>
<div class="row">
  <div class="col-md-6">
    Input Text: <input type="text"><br>
    <button type="submit" class="btn btn-primary" ng-click="updateProject()">Go to otherRoute</button>
  </div>
  <div class="col-md-6">
    <a ui-sref=".surveys"></a>
    <div ui-view="viewA"></div>
  </div>
</div>

用户将看到两列.左列将只有一个输入字段和按钮，按下时会将用户转换到 otherRoute 状态.

The user will be presented with two columns. The left column will just have an input field and button, which when pressed will transition the user to the otherRoute state.

当我们转换到 projects.edit 状态时，它的控制器会调用 $state.go('projects.edit.surveys')，它会设置它的右栏中的嵌套视图.projects.edit.surveys 状态将首先以随机顺序解析一个数字数组，并将其作为名为 items 的参数传递给控制器​​.projects.surveys.html 部分将被放置在右列中.它将以随机顺序显示数字列表并有一个按钮，该按钮调用 $state.transitionTo($state.current, $state.params, { reload: true, inherit: true, notify: true }).此按钮将重新加载 projects.edit.surveys 状态.用户将以不同的顺序看到数字，左列输入字段中的任何文本都将消失.

When we transition to the projects.edit state, it's controller will call $state.go('projects.edit.surveys'), which will set up it's nested view in the right column. The projects.edit.surveys state will first resolve an array of numbers in a random order, which it will pass into the controller as a parameter called items. The projects.surveys.html partial will then be placed in the right column. It will show the list of numbers in a random order and have a button, which calls $state.transitionTo($state.current, $state.params, { reload: true, inherit: true, notify: true }). This button will reload the projects.edit.surveys state. The user will see the numbers in a different order, and any text in the input field in the left column will disappear.

这可以在这个 Plunker 中看到:http://plnkr.co/edit/SK8hjMpw6kvPiTdVeEhz?p=preview

This can be seen in action in this Plunker: http://plnkr.co/edit/SK8hjMpw6kvPiTdVeEhz?p=preview

这一切都引出了我的问题:我怎样才能只重新加载右列的内容，即嵌套视图(projects.edit.surveys)，而不重新加载父视图(projects.edit)? 我希望能够按下右栏中的按钮，只对数字重新排序，这是在 projects.edit.surveys状态的resolve，并且不清除左栏中的输入字段(并且不调用projects.edit中的resolve方法).换句话说，我只想刷新右侧列 projects.edit.surveys 状态，而不影响左侧 projects.edit 状态中的任何内容.

This all leads to my question: how can I only reload the content of the right column ie the nested view (projects.edit.surveys), without reloading the parent view (projects.edit)? I would like to be able press the button in the right column and only re-sort the numbers, which is done in projects.edit.surveys state's resolve, and not clear the input field in the left column (and not call the resolve methods in projects.edit). In other words, I'd like only refresh the right column projects.edit.surveys state, without affecting anything in the left hand projects.edit state.

任何帮助将不胜感激！！！

Any help would be greatly appreciated!!!

推荐答案

有一个 plunker 有一个修改.与其使用非常极端的设置 reload: true，我们可以从原生 ui-router 设计中获益:

There is a plunker with one modification. Instead of using very extreme setting reload: true, we can profit from native ui-router desing:

重新加载状态以防其声明的参数发生变化

reload the state in case its declared param has changed

所以，这将是新的状态和控制器定义:

So, this would be the new state and controller definition:

.state('projects.edit.surveys', {
      resolve: {
        ... // unchanged
      },
      // here we declare param trigger
      url: "/surveys/{trigger}",
      views: { 
      '' : { 
            templateUrl: "projects.surveys.html",
            controller: function($scope, items, $state){
              $scope.items = items
              $scope.addSurvey = function(){

                // here we copy current params
                var params = angular.copy($state.params);
                // do some tricks to not change URL
                params.trigger = params.trigger === null ? "" : null;
                // go to the same state but without reload : true
                $state.transitionTo($state.current, params, { reload: false, inherit: true, notify: true })
              }
            }
        }
      }
    })

从用户的角度来看，param 正在改变，但它的可见性没有改变 - 它是 null 或 string.Empty ... 检查调整和 更原生的 ui-router 解决方案 这里

From a user perspective, param is changing but not its visibility - it is null or string.Empty ... Check that adjustment and a bit more native ui-router solution here

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