javascript - ng-model 未在嵌套指令中更新

Question

我在具有范围变量的指令中嵌入了文本 Angular ...scope.htmlContent.content。在指令中我有

template:
'''
// This updates just fine. I use it to debug so I will take this out from time to time
<p ng-bind='htmlContent.content'></p>
// ng-model htmlContent.content stays blank and does not update
<text-angular ng-model='htmlContent.content'>
</text-angular>
''',
link: function(scope, ele, attr, ctrl) {
//some code
$http({
  method: 'GET'
  url: 'someurl.com'
}).success(function(data,headers,config) {
  // This does not update text-angular
  scope.htmlContent.content = data;
  // If I add this, it will error out
  scope.$apply()
})
}

无论如何，ng-model 没有正确更新。仅当我在某些异步 fxn 之外的链接函数的开头显式设置scope.htmlContent.content 时，它才起作用。如何更新 ng-model？

Answer 1

您需要为您的 http get 调用创建一个工厂，如下所示:

//Please change it as per your needs
app.factory('factoryProvider', function(){
    return {
    yourData:function(callback){
        $http.get('url').success(callback); 
    }
   }
});

然后在你的指令中你需要注入(inject)工厂

app.directive('myDiv',['factoryProvider', function(factoryProvider) {
    return {
        restrict: 'E',
        replace: true,
        template: '<p>{{name}}</p>',
        controller: function($scope) {
        },
        link: function(scope) {
            scope.data=factoryProvider.yourData;
        }
    };
}]);

希望对你有帮助!!