javascript - 如何在AngularJS的Router UI Controller 中访问主 Controller 变量？

我正在尝试使用AngularJS创建CRUD页面，我使用Angular Router UI进行页面更改

如何在我的主要Controller路径的controller中访问变量？

//This is my main controller:
var app = angular.module('app', [
    'ui.router'
]);
app.controller('MyCtrl', function ($scope) {
    $scope.persons = [
        {name: 'Daisy', description: 'Developer'},
        {name: 'Zelda', description: 'Developer'},
        {name: 'Luide', description: 'Developer'},
        {name: 'Mario', description: 'Developer'}
    ];
});

这是我的路由器配置
app.config（function（$ stateProvider，$ urlRouterProvider）{
    $ urlRouterProvider.otherwise（'/'）;

$stateProvider
    .state('list', {
        url: '/list',
        templateUrl: 'list.html',
        controller: 'MyCtrl'
    })
    .state('edit', {
        url: '/edit',
        templateUrl: 'edit.html',
        controller: function($scope, $state) {
            $scope.person = {name: "", description: ""};

            $scope.click = function () {
                $state.go('list');
            };
        }
    })
    .state('add', {
        url: '/add',
        templateUrl: 'edit.html',
        controller: function($scope, $state) {
            $scope.person = {name: "", description: ""};

            $scope.click = function () {
                // HOW TO CAN I ACCESS $SCOPE.PERSONS FOR MAKE THIS PUSH?
                $scope.persons.push($scope.person);
                $state.go('list');
            };
        }
    });

}）;

最佳答案

与其在MainController中创建$ scope.persons，不如使用服务来存储persons对象：

app.service("People", function () {
   this.persons = [
        {name: 'Daisy', description: 'Developer'},
        {name: 'Zelda', description: 'Developer'},
        {name: 'Luide', description: 'Developer'},
        {name: 'Mario', description: 'Developer'}
    ];
});

然后，您可以将其注入到控制器中（上面的代码）：

.state('add', {
        url: '/add',
        templateUrl: 'edit.html',
        controller: function($scope, $state, People) {
            $scope.person = {name: "", description: ""};

            $scope.click = function () {
                //use persons object of people service.
                People.persons.push($scope.person);
                $state.go('list');
            };
        }
    });

});

您可以通过依赖注入在不同的控制器，服务和指令中共享这些人。例如，您的列表控制器（MyCtrl）如下所示：

app.controller('MyCtrl', function ($scope, People) {
    $scope.persons = People.persons;
});