AngularJS如何更改模型的一部分 [英] AngularJS how to change part of a model

问题描述

我有一个页面上改变模型的部分操作链接。这些链接有一个火一个返回被修改模型的一部分​​的服务器上的动作NG-点击功能。我的$ http.get（...）的结果分配给已更改模型的一部分​​。但是，数据从来不解决。

I have action links on a page that change parts of the model. The links have ng-click functions that fire a server action that returns the part of the model that was altered. I assign the result of $http.get(...) to the part of the model that was changed. But the data is never resolved.

GuideControllers.controller('VideoDetailCtrl', ['$scope', '$http', '$routeParams', 'Video',
    function($scope, $http, $routeParams, Video, Preference) {
        $scope.video = Video.get({ id: $routeParams.id });
        $scope.addToWatchlist = function(id) {
            $scope.video.prefs = $http.get('/api/preference/'+id+'/add_to_watchlist.json')
        }
    }
]);

第一Video.get（...）填写并承诺解决的时候，最终改变了页面，视频。preFS是正确的模型。但是，当我单独获取视频。preFS他们从来没有得到解决。我试图挽救在一个单独的变量$ http.get承诺然后在$ http.get（...）。成功（...我复制出来的变量中的部分视频。preFS，但没有无论是工作，因为临时可行的是一个承诺 - 我猜

The first Video.get(...) fills in the model with a promise that eventually changes the page, the video.prefs are correct when resolved. But when I fetch the video.prefs individually they never get resolved. I tried saving the $http.get promise in a separate variable then on $http.get(...).success(... I copied the parts out the the variable to videos.prefs but that didn't work either since the temp viable was a promise--I guess.

我应该如何通过询问服务器只是位改变模型的一部分​​？

How should I change part of the model by asking the server for just that bit?

推荐答案

这应该这样做：

GuideControllers.controller('VideoDetailCtrl', ['$scope', '$http', '$routeParams', 'Video',
    function($scope, $http, $routeParams, Video, Preference) {
        $scope.video = Video.get({ id: $routeParams.id });

        $scope.addToWatchlist = function(id) {
            $http.get('/api/preference/'+id+'/add_to_watchlist.json').success(function(data) {
                $scope.video.prefs = data;
            });
        }
    }
]);

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