如何共享数据模型的只读访问权限？

I have an object on some controller's scope, bound to some inputs on the accompanying view. I want to share the data in that object with other controllers, so they can read it, but they should not be able to modify it.

我在某个控制器的作用域上有一个对象,绑定到随附视图上的一些输入。我想与其他控制器共享该对象中的数据,因此他们可以读取它,但是他们不能修改它。

It seems to me, if it put the model in a service/factory, I either allow or prevent all modification. Same thing if I put it on the rootscope.

在我看来,如果它将模型放在服务/工厂中,我要么允许或阻止所有修改。如果我把它放在rootcope上也一样。

What would be the connonical way of doing something like this?

做这样的事情的方法是什么?

2 个解决方案

#1

You can put the model in a service/factory, and assign getter/setter functions to it, something like:

您可以将模型放在服务/工厂中,并为其分配getter / setter函数,例如:

angular.factory('testFactory', [function(){

    var _yourModel = {}

    return {
        yourModel: function(newValue){
            if(newValue){
                _yourModel = newValue
            }else{
                return angular.copy(_yourModel) //This will return a clone of _yourModel
            }
        }
    }

}])


//In your controller
  $scope.model = testFactory.yourModel();

#2

Just for a sake of this discussion . If you use $rootscope to store your data globally like $rootscope.data(). For instance, if you define $rootScope.data() and in a controller you define a function $scope.data() because you forget about the first created data(), something will certainly go wrong.

只是为了讨论这个问题。如果你使用$ rootscope来全局存储你的数据,比如$ rootscope.data()。例如,如果您定义$ rootScope.data()并在控制器中定义函数$ scope.data(),因为您忘记了第一个创建的数据(),肯定会出错。

So best way to use this kind of scenario angular service is better also please bear with my english.

所以最好的方式来使用这种场景角度服务更好也请用我的英语。

#1