AngularJS从工厂返回值到控制器

AngularJS return value from factory to controller out of Promise

本文关键字：控制器 返回值 工厂 AngularJS      更新时间：2023-09-26

我有一个HTTP请求设置为.factory中的承诺，并希望将结果发送到控制器。然而，我坚持把数据从承诺中取出来，放到我可以使用它的地方。

.合肥

.controller('MainCtrl', function ($scope, Main, User) {
    $scope.feedResult = function () {
        var feeds = [];
        return Main.feed(key).success(function (data, status, headers, config) {
            for (var i = 0; i < data.length; i += 1)
            {
                feeds.push(data[i]);
            }
            return feeds;
        }).error(function (data, status, headers, config) {
            console.log("This was an error back from the server");
            console.log(data);
            return data;
        });
    }();
})

和。factory

        feed: function (token) {
            return $http({
                url: 'http://myserver.com/feed',
                method: 'GET',
                data: {
                    auth_code: token,
                    per_page: 10
                }
            }).success(function (data, status, headers, config) {
                for (var i = 0; i < data.length; i += 1)
                {
                    feeds.push(data[i]);
                }
                return feeds;
            }).error(function (data, status, headers, config) {
                console.log("This was an error back from the server");
                console.log(data);
                return data;
            });
        },

无论我如何尝试将东西放入作用域，我似乎总是以promise对象结束。有人能帮我一下吗?

success或error方法总是返回一个promise(它将返回值封装到一个新的promise中)。你应该在成功/错误回调中设置范围的值:

.controller('MainCtrl', function ($scope, Main, User) {
    $scope.feedResult = [];
    Main.feed(key).success(function (data, status, headers, config) {
        for (var i = 0; i < data.length; i += 1)
        {
             $scope.feedResult.push(data[i]);
        }
    }).error(function (data, status, headers, config) {
        console.log("This was an error back from the server");
        console.log(data);
        $scope.feedResult = data;
    });
})
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