如何在angularjs中使用ng-value发送隐藏字段值

我的表单如下:

<form ng-submit = "submit()">
                    <input ng-model="formData.data" type="text" name="sticky_content" placeholder="protein" required="true"/>
                    <input type="hidden" name="time_start" ng-value="{{getStuff.e_time}}" required="true"/>
                    <input ng-model="formData.end" type="text" name="time_end" placeholder="{{getStuff.e_time+100}}" required="true"/>
                    <input type="hidden" name="zoom_level" ng-value="{{getStuff.zoom}}" required="true"/>
                    <input type="hidden" name="latitude" ng-value="{{getStuff.lat}}" required="true"/>
                    <input  type="hidden" name="longitude" ng-value="{{getStuff.lon}}" required="true"/>
                    <button type="submit" name="add_sticky" value="add a new stickie!">new sticky</button>   
            </form>

在我的控制器中:

app.controller('mainCtrl',function($scope,$http,sluiceStuff){
    $scope.formData={};
    $scope.formData.e_time = sluiceStuff.e_time;  //again, these are all filling correctly in the "inspect element tab. They just aren't submitting in the POST"
    $scope.formData.zoom = sluiceStuff.zoom;
    $scope.formData.lat = sluiceStuff.lat;
    $scope.formData.lon = sluiceStuff.lon;

现在只有第一个和第三个输入有效——即ng模型。这里的工作是指与POST请求一起发送。我知道对于其他的，{{getStuff。e_time}}"是正确填充的，因为当我检查元素时，我可以看到数字本身。然而，其他4个输入都没有提交，更不用说正确提交了。这是我的表单的正确格式吗?我是否正确使用了ng-value ?我正在运行一个node.js服务器，但由于请求甚至没有发送所有的数据，我不相信服务器上可能存在问题。

编辑:根据请求，这里是服务器端代码:

app.post('/api/stickies',function(req,res){
        db.run("INSERT INTO stickies (data, start, end, zoom_level, latitude, longitude) VALUES (?,?,?,?,?,?)", [ req.body.data,req.body.time_start, req.body.end, req.body.zoom_level, req.body.latitude, req.body.longitude ]);
        res.send(200);
});

这里还有一个submit函数:

$scope.submit = function() {
            $scope.formData.e_time = sluiceStuff.e_time;    //these 4 lines I added
            $scope.formData.zoom = sluiceStuff.zoom;        //to make it work. But I am 
            $scope.formData.lat = sluiceStuff.lat;          //not sure that they are necessary
            $scope.formData.lon = sluiceStuff.lon;           // or that this is the best way to do it
            $http.post('/node/api/stickies', $scope.formData)
                    .then(function(data){
                            $scope.stickies.push(data.config.data);
                            //console.log(data.data);
                    },function(err){console.log(err)});
    };