AngularJS输入字段在提交后显示[object Object]

Question

我开发了一个AngularJS天气应用程序，我唯一要解决的问题与我的输入元素有关。提交值后，输入值将替换为“[object Object]”。我已经阅读了几个问题，到目前为止还没有找到帮助我解决这个问题的任何问题。所以我转向你们，希望你能帮助我。

表格和输入如下：

<form name="add-city" ng-submit="getCity(city)">
    <input id="user-city" type="text" name="user-city" placeholder="Search for a city" ng-model="city" ></input>
    <button type="button" ng-click="getCity(city)">Add</button>
</form>

具有getCity（city）功能的控制器如下：

app.controller('MainController', ['$scope','forecasts','$http', function($scope, forecasts, $http){
    forecasts.success(function(data){
        $scope.forecasts = data.list;
    });
    $scope.removeCity = function (index) {
        $scope.forecasts.splice(index, 1);
        urlCityList.splice(index, 1);
        localStorage.setItem('myCities', JSON.stringify(urlCityList));
    };
    $scope.getCity = function(city) {
        console.log('getCity() invoked with: '+city);
        var thisCity=$scope.city;
        // CONSTRUCT URL
        var url1 = 'http://api.openweathermap.org/data/2.5/weather?q=';
        var url2 = '&units=metric&APPID=f96088515ba4137e85db097513d9d8ab';
        var getCityUrl = url1+$scope.city+url2;
        $http.get(getCityUrl)
        .success(function(data){
            $scope.city = data;
            var newCity = {
                "city": $scope.city.name,
                "country":$scope.city.sys.country,
                "id":$scope.city.id
            }
            var getCorrectCity = newCity.city.toUpperCase() == city.toUpperCase();
            var avoidDuplicate = true;
            var noDuplicate = true;
            for (i=0; i < urlCityList.length; i++) {
                if (urlCityList[i].city.toUpperCase() == city.toUpperCase()) {
                    noDuplicate = false;
                }
            }
            if (getCorrectCity == true && noDuplicate == true) {
                urlCityList.push(newCity);
                localStorage.setItem('myCities', JSON.stringify(urlCityList))
                $scope.forecasts.push($scope.city);
            }
        })
        .error(function(err){   
            return err;
        });
        console.log($('#addCity').val());
        $('#addCity').val('');
    };
    $("#user-city").keyup(function (e) {
    if (e.keyCode == 13) {
        // Do something
    }
});
}]);

应用程序已启用，问题可以在这里看到：jhalland.dk/weather

提前致谢