。然后在不角

整理承诺响应后我有控制器，其中我广播在不同的控制器的事件：。然后在不角

getmovieController.js：

$scope.removeMovie = function(movie){ 
    $rootScope.$broadcast('onremoveMovieEvent', movie); 
};

这是其他控制器在我称之为

$scope.$on('onremoveMovieEvent', function (event, movie) { 
    movieFactory.removeMovie(movie).then(function(){ 
     Notification.success(movie.title + ' has been removed from your watchlist') 
    }) 
});

：请求的函数工厂内

moviesearchController.js功能210

这是带有removeMovie功能的工厂。

movieFactory.js

var factory = {} 

factory.removeMovie = function (movie) { 
    var deferred = $q.defer(); 
    $http({ 
     method: 'DELETE', 
     url: '/movies', 
     data: movie, 
     headers: {"Content-Type": "application/json;charset=utf-8"} 
    }) 
     .success(function(){ 
      console.log('success factory'); 
     }) 
     .catch(function(){ 
     }); 
    return deferred.promise; 
}; 

return factory;

最后我有一个响应删除

movies.js

router.delete('/', function(req,res){ 

    pool.getConnection(function(err, connection){ 

     connection.query('DELETE FROM movies WHERE id= ?', [req.body.id], function(err, result) { 
      if (err) { 
       throw err; 
      } else { 
       console.log('removed') 
      } 
     }); 
     connection.release(); 
    }); 
    res.status(204).end(); 
});

所以这是所有相关的代码路径文件。现在的问题。当我在第一个控制器中调用$scope.removeMovie函数时，单击的记录将从数据库中删除，工厂将在控制台中显示success factory日志。但我不能从第二控制器

$scope.$on('onremoveMovieEvent', function (event, movie) { 
    movieFactory.removeMovie(movie).then(function(){ 
     Notification.success(movie.title + ' has been removed from your watchlist') 
    }) 
});

为什么我不能进入一个全成工厂函数后.then回调获取到.then回调？

来源

2016-08-15 Peter Boomsma

您应该在工厂中包含deferred.resolve和deferred.reject函数。所以基本上你这样做：

factory.removeMovie = function (movie) { 
    var deferred = $q.defer(); 
    $http({ 
    method: 'DELETE', 
    url: '/movies', 
    data: movie, 
    headers: {"Content-Type": "application/json;charset=utf-8"} 
    }) 
    .success(function(response){ 
    console.log('success factory'); 
    deferred.resolve(response); // Include response if you want 
    }) 
    .catch(function(error){ 
    deferred.reject(error); // Include error if you want 
    }); 

    return deferred.promise; 
};

这实际上将承诺成功/失败，并将返回响应。然后您的控制器中的then功能就可以工作。

来源

2016-08-15 12:20:57 thepio

啊geez我怎么错过了这个。呃谢谢。 –

没问题......而且你知道它是如何的......有时候你只是在编码时盲目地看到这样的东西：P – thepio

是的，我应该只是喝了一些咖啡。感谢您指出它。我决定选择最低的代表为正确的答案，原因:)。 –

我觉得有缺失deferred.resolve（）成功回调内部执行在工厂：

factory.removeMovie = function (movie) { 
    var deferred = $q.defer(); 
    $http({ 
     method: 'DELETE', 
     url: '/movies', 
     data: movie, 
     headers: {"Content-Type": "application/json;charset=utf-8"} 
    }) 
     .success(function(response){ 
      console.log('success factory'); 
      deferred.resolve(response); 
     }) 
     .catch(function(response) { 
      deferred.reject(response); 
     }); 
    return deferred.promise; 
}; 

return factory;

你也应该处理赶上（）法：deferred.reject（）

来源

2016-08-15 12:21:26

这样一个愚蠢的错误。感谢您指出。 –

不客气;） –

发生这种情况是因为您没有解决或拒绝承诺。更新您的movieFactory.js

var factory = {} 

factory.removeMovie = function (movie) { 
    var deferred = $q.defer(); 
    $http({ 
     method: 'DELETE', 
     url: '/movies', 
     data: movie, 
     headers: {"Content-Type": "application/json;charset=utf-8"} 
    }) 
    .success(function(){ 
     console.log('success factory'); 
     deferred.resolve(/* Do send some response if necessary */); 
    }) 
    .catch(function(){ 
     deferred.reject(/* Do send some response if necessary */); 
    }); 
    return deferred.promise; 
}; 

return factory;

您也可以直接返回承诺通过$http服务，如果你没有做任何其他处理返回。

var factory = {} 

factory.removeMovie = function (movie) { 
    return $http({ 
     method: 'DELETE', 
     url: '/movies', 
     data: movie, 
     headers: {"Content-Type": "application/json;charset=utf-8"} 
    }); 
}; 

return factory;

来源

2016-08-15 12:22:00

。然后在不角

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