AngularJS - 访问元素NG-视图外 [英] AngularJS - access elements outside of ng-view

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问题描述

我有与NG-视图(管理面板),让我显示订单设置。我有NG-视图外一个搜索框,我想用修改我的JSON请求。我已经看到了访问的东西,如标题一些职位,但无法让他们的工作 - 也许是过时

主要应用的东西:

  angular.module('对myApp',['myApp.controllers','myApp.filters','myApp.services','myApp.directives','ui.bootstrap ])。
配置(['$ routeProvider','$ locationProvider',函数($ routeProvider,$ locationProvider){$ routeProvider。
  什么时候('/', {
    templateUrl:/partials/order/manage.html',
    控制器:'ManageOrderCtrl
  })。
  当('/顺序/:身份证',{
   templateUrl:/partials/order/view.html',
    控制器:'ViewOrderCtrl
  })。
  除此以外({
    redirectTo:'/'
  });
$ locationProvider.html5Mode(真);
}]);

管理控制器:

  angular.module('myApp.controllers',[])
.controller('ManageOrderCtrl',['$范围,$ HTTP,$对话','配置','页',函数($范围,$ HTTP,$对话框,配置,页){  //希望有来自可在这里输入#搜寻搜索值
  VAR的getData =功能(){
    $ http.get('/命令)。
    成功(功能(数据,状态,头,配置){
      $ scope.orders = data.orders;
    });
  };的getData();
})

查看:

 <机身NG-应用=对myApp>
  <输入类型=文本ID =搜索>
  < D​​IV CLASS =NG-斗篷>
    < D​​IV NG-视图>< / DIV>
  < / DIV>
< /身体GT;


解决方案

如果你要去外面&LT访问的东西; DIV NG-视图>< / DIV> ,我认为更好的方法是创造外部区域控制器以及。然后,创建共享控制器之间的数据服务:

<机身NG-应用=对myApp>
  < D​​IV NG控制器=MainCtrl>
      <输入类型=文本ID =搜索>
  < / DIV>
  < D​​IV CLASS =NG-斗篷>
    < D​​IV NG-视图>< / DIV>
  < / DIV>
< /身体GT;

NG-控制器=MainCtrl,也可以放置在<身体GT; 标记 - 那么在NG-视图$范围将是MainCtrl $范围,而不是一个兄弟姐妹的孩子。)

创建服务很简单,只要这样的:

app.factory('搜索',函数(){
  返回的{text:''};
});

和它的注射是这样的:

app.controller('ManageOrderCtrl',函数($范围,搜索){
  $ scope.searchFromService =搜索;
});app.controller('MainCtrl',函数($范围,搜索){
  $ scope.search =搜索;
});

这样,您就不必依赖于通过全球$ rootScope共享数据(这有点像依靠全局变量在JavaScript中 - 为各种原因一个坏主意)或通过$父范围可以是也可能不是present。

我创建了一个 plnkr ,试图展现中的两个解决方案之间的差异。

I have a setup with an ng-view (an admin panel) that lets me display orders. I have a search box outside of ng-view that I would like to use to modify my json request. I've seen some posts on accessing things such as the title but was not able to get them to work - perhaps outdated.

Main app stuff:

angular.module('myApp', ['myApp.controllers', 'myApp.filters', 'myApp.services', 'myApp.directives', 'ui.bootstrap']).
config(['$routeProvider', '$locationProvider', function($routeProvider, $locationProvider)       {

$routeProvider.
  when('/', {
    templateUrl: '/partials/order/manage.html',
    controller: 'ManageOrderCtrl'
  }).     
  when('/order/:id', {
   templateUrl: '/partials/order/view.html',
    controller: 'ViewOrderCtrl'
  }).   
  otherwise({
    redirectTo: '/'
  });
$locationProvider.html5Mode(true);
}]);

Manage controller:

angular.module('myApp.controllers', [])
.controller('ManageOrderCtrl', ['$scope', '$http', '$dialog', 'config', 'Page', function($scope, $http, $dialog, config, Page) {

  // would like to have search value from input #search available here
  var getData = function() {
    $http.get('/orders').
    success(function(data, status, headers, config) {
      $scope.orders = data.orders;
    });
  };

getData();
})

View:

<body ng-app="myApp" >
  <input type="text" id="search">
  <div class="ng-cloak" >
    <div ng-view></div>
  </div>
</body>

解决方案

If you're going to access stuff outside the <div ng-view></div>, I think a better approach would be to create a controller for the outer region as well. Then you create a service to share data between the controllers:

<body ng-app="myApp" >
  <div ng-controller="MainCtrl">
      <input type="text" id="search">
  </div>
  <div class="ng-cloak" >
    <div ng-view></div>
  </div>
</body>

(ng-controller="MainCtrl" can also be placed on the <body> tag - then the ng-view $scope would be a child of the MainCtrl $scope instead of a sibling.)

Creating the service is as simple as this:

app.factory('Search',function(){
  return {text:''};
});

And it's injectable like this:

app.controller('ManageOrderCtrl', function($scope,Search) {
  $scope.searchFromService = Search;
});

app.controller('MainCtrl',function($scope,Search){
  $scope.search = Search;
});

This way you don't have to rely on sharing data through the global $rootScope (which is kinda like relying on global variables in javascript - a bad idea for all sorts of reasons) or through a $parent scope which may or may not be present.

I've created a plnkr that tries to show the difference between the two solutions.

这篇关于AngularJS - 访问元素NG-视图外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!

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