如何在孩子身上观看nb模型

Question

我在控制器中使用ui-select，我需要侦听控制器对ng模型的更改，这是我的HTML：

<div id="countryCtrl" country-selection class="form-inline">
    <ui-select  ng-model="selectedCountry" theme="selectize" style="{{$cat_style}}">
        <ui-select-match placeholder="Select or search ...">
    @{{$select.selected.title}}
    </ui-select-match>
    <ui-select-choices repeat="country in countries | filter: $select.search">
        <span ng-bind-html="country.title | highlight: $select.search"></span>
    </ui-select-choices>
    </ui-select>
</div>

在国家/地区选择控制器：

angular.module('mainCtrl').directive('countrySelection', ['Country','state', function(Country, state) {

var linkF = function (scope, element, attrs, widgetPath) {
        scope.$watch("selectedCountry", function (neww, old) {
            console.log(scope.selectedCountry);
            widgetPath.selectedCountry= widgetPath.model.selectedCountry;
            scope.update("state.country.changed",scope.selectedCountry);//widgetPath.model.selectedCountry);
        }, true);

    };

    return {
        require: "^widgetPath",
        restrict: 'A',
        link: linkF,
        scope: {}
    }
}]);

如果我在 ui-select 指令中将国家/地区选择设置为如下所示的属性，手表将起作用：

<ui-select  ng-model="selectedCountry" country-selection theme="selectize" style="{{$cat_style}}">

但是，然后，我将无法隔离country-selection的范围，并且会出现错误

Multiple directives [countrySelection, uiSelect] asking for new/isolated scope on: 

那么，我将如何从父指令country-selection ui-select指令中查看ng-Model属性？

Answer 1

有一个 on-select 属性，从那里你可以在你的作用域上调用一个函数。

<ui-select ng-model="person.selected" theme="select2" on-select="someFunction($item, $model)" ...