javascript - 如何删除 angularjs 中请求对象中的字段

Question

我从 angularjs Controller 向服务器发出请求以获取一个对象，并且我想在 View 显示该对象之前删除该对象中的一个字段。以下是我的代码

$scope.findOne = function() {
    $scope.order = Orders.get({
        orderId: $stateParams.orderId
    });
    delete $scope.order._id;
    console.log(JSON.stringify($scope.order));
};

打印

{"$promise":{},"$resolved":false}

它不会删除 id 字段。我的 View 甚至显示了我的对象的 _id 。如何删除该字段？

以下是我的服务文件

'使用严格';

//Orders service used for communicating with the orders REST endpoints
angular.module('orders').factory('Orders', ['$resource',
    function($resource) {
        return $resource('orders/:orderId', {
            orderId: '@_id'
        }, {
            update: {
                method: 'PUT'
            }
        });
    }
]);

当我将 findOne() 更改为

$scope.findOne = function() {
    Orders.get({
        orderId: $stateParams.orderId
        }).success(function(res)//(this is line number 56)
        {
            delete res.data._id;
            $scope.order = res.data;
    });
};

我在控制台中收到此错误

 TypeError: undefined is not a function
    at Scope.$scope.findOne (http://localhost:3000/modules/orders/controllers/orders.client.controller.js:56:14)
    at http://localhost:3000/lib/angular/angular.js:10903:21
    at Scope.$eval (http://localhost:3000/lib/angular/angular.js:12811:28)
    at pre (http://localhost:3000/lib/angular/angular.js:20125:15)
    at nodeLinkFn (http://localhost:3000/lib/angular/angular.js:6732:13)
    at compositeLinkFn (http://localhost:3000/lib/angular/angular.js:6146:13)
    at publicLinkFn (http://localhost:3000/lib/angular/angular.js:6042:30)
    at http://localhost:3000/lib/angular-ui-router/release/angular-ui-router.js:3905:9
    at nodeLinkFn (http://localhost:3000/lib/angular/angular.js:6752:13)
    at compositeLinkFn (http://localhost:3000/lib/angular/angular.js:6146:13) <section data-ng-controller="OrdersController" data-ng-init="findOne()" class="ng-scope">angular.js:10126 (anonymous function)

Answer 1

get 默认返回一个 Promise 对象。这样做的方法是

$scope.findOne = function() {
    Orders.get({
        orderId: $stateParams.orderId
        }).success(function(res)
        {
            delete res.data._id;
            $scope.order = res.data;
    });
};