Passing asynchronously obtained data to a directive

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I currently have an AngularJS controller that is basically getting some JSON asynchronously through a $http.get() call, then linking t

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别那么骄傲

2020-12-18 09:12
The problem appears to be your html markup.

In your controller you have specified the ctrlModel is equal to this.

In your html markup you have declared the same this to be named interactionsController.
So tacking on ctrlModel to interactionsController is incorrect.
```
<body>
  <div ng-controller='interactionsController as interactionsCtrl'>
    
    <mm-sidebar pages='{{interactionsCtrl.ctrlModel.sidebar.pages}}'>

    
    <mm-sidebar pages='{{interactionsCtrl.sidebar.pages}}'>

    </mm-sidebar>
  </div>
</body>
```
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你的背包

2020-12-18 09:14

Move the declaration for the sidebar object in the controller and change the scope binding to =.

mapsDirectives.controller("interactionsController", ["$http", "$timeout",
    function($http, $timeout) {
        var ctrlModel = this;
        ctrlModel.sidebar = {
            pages: []
        };
      /*
      $http.get("data/interactionsPages.json").
          success(function(data) {
          //ctrlModel.sidebar = {};
          ctrlModel.sidebar.pages = data;
       }).
       error(function() {});
      */

      $timeout(function() {
        //ctrlModel.sidebar = {};
        ctrlModel.sidebar.pages = ["one", "two"];
      }, 2000);
    }
]);

mapsDirectives.directive('mmSidebar', [function() {
    return {
      restrict: 'E',
      scope: {
        pages: '='
      },
      controller: function() {},
      link: function(scope, element, attrs, ctrl) {
        scope.$watch("pages", function(val) {
          scope.firstPage = 0;
          scope.lastPage = scope.pages.length - 1;
          scope.activePage = 0;
        });
      },
      templateUrl: 'sidebar.html'
    };
}]);

Then match the directive name and drop the braces.

<mm-sidebar pages='interactionsCtrl.sidebar.pages'>
</mm-sidebar>

Here's a working example: http://plnkr.co/edit/VP79w4vL5xiifEWqAUGI

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