Question

我根据this tutorial创建了我的MEAN堆栈应用。这是我在/ client / app / thoughtsIndex /中的ideasIndex.js。你可以思考＆＃39;思考＆＃39;作为职位。

/*Change your class definitions to use proper case names then use the camel case converter provide by newtonsoft*/

public class WeatherClass
{
    public string Name { get; set; }
    public Info Main { get; set; }
    public List<InfoWeather> Weather { get; set; }
}

public class Info
{
    public string Temp { get; set; }
    public string Pressure { get; set; }
}

public class InfoWeather
{
    public string Description { get; set; }
    public string Main { get; set; }
}

var jsonSerializerSettings = new JsonSerializerSettings { ContractResolver = new CamelCasePropertyNamesContractResolver() };
var weatherClass = Newtonsoft.Json.JsonConvert.DeserializeObject<WeatherClass>(json, jsonSerializerSettings);

＆＃39; collectedThoughtsIndex＆＃39;州和＆＃39; userThoughtsIndex＆＃39;国家工作正常。

问题是，当状态为“主要”时，我想在db中显示所有想法，除了当前用户的想法。如果没有当前用户，我想在db。中显示所有想法。

I asked to the tutorial author，他说试试{user：{$ ne：$ stateParams.userId}}。但这给了我这个错误。

angular.module('meanGoroApp')
  .config(function ($stateProvider) {
    $stateProvider
      .state('main', {
        url: '/',
        templateUrl: 'app/thoughtsIndex/thoughtsIndex.html',
        controller: 'ThoughtsIndexCtrl',
        resolve: {
            query: function($stateParams) {
            return {
              // I need help here!!
            }
          }
        }
      })

      .state('collectedThoughtsIndex', {
        url: '/users/:userId/collected',
        templateUrl: 'app/thoughtsIndex/thoughtsIndex.html',
        controller: 'ThoughtsIndexCtrl',
        resolve: {
            query: function($stateParams) {
                return {
                    collectedBy: $stateParams.userId
                }
            }
        }
      })

      .state('userThoughtsIndex', {
        url: '/users/:userId',
        templateUrl: 'app/thoughtsIndex/thoughtsIndex.html',
        controller: 'ThoughtsIndexCtrl',
        resolve: {
            query: function($stateParams) {
                return { user: $stateParams.userId };
            }
        }
      });
  });

到目前为止，我试过了

    Unhandled rejection CastError: Cast to ObjectId failed for value "[object Object]" at path "user"
    at MongooseError.CastError (/Volumes/Garage/GORO/mean_goro/node_modules/mongoose/lib/error/cast.js:19:11)
    at ObjectId.cast (/Volumes/Garage/GORO/mean_goro/node_modules/mongoose/lib/schema/objectid.js:147:13)
    at ObjectId.castForQuery (/Volumes/Garage/GORO/mean_goro/node_modules/mongoose/lib/schema/objectid.js:187:15)
    at cast (/Volumes/Garage/GORO/mean_goro/node_modules/mongoose/lib/cast.js:141:34)
    at Query.cast (/Volumes/Garage/GORO/mean_goro/node_modules/mongoose/lib/query.js:2570:10)
    at Query.find (/Volumes/Garage/GORO/mean_goro/node_modules/mongoose/lib/query.js:1087:10)
    at /Volumes/Garage/GORO/mean_goro/node_modules/mongoose/lib/query.js:2164:21
    at Query.exec (/Volumes/Garage/GORO/mean_goro/node_modules/mongoose/lib/query.js:2157:10)
From previous event:
    at index (/Volumes/Garage/GORO/mean_goro/server/api/thought/thought.controller.js:78:55)
    at Layer.handle [as handle_request] (/Volumes/Garage/GORO/mean_goro/node_modules/express/lib/router/layer.js:95:5)
    at next (/Volumes/Garage/GORO/mean_goro/node_modules/express/lib/router/route.js:131:13)
    at Route.dispatch (/Volumes/Garage/GORO/mean_goro/node_modules/express/lib/router/route.js:112:3)
    at Layer.handle [as handle_request] (/Volumes/Garage/GORO/mean_goro/node_modules/express/lib/router/layer.js:95:5)
    at /Volumes/Garage/GORO/mean_goro/node_modules/express/lib/router/index.js:277:22
    at Function.process_params (/Volumes/Garage/GORO/mean_goro/node_modules/express/lib/router/index.js:330:12)
    at next (/Volumes/Garage/GORO/mean_goro/node_modules/express/lib/router/index.js:271:10)
    at Function.handle (/Volumes/Garage/GORO/mean_goro/node_modules/express/lib/router/index.js:176:3)
    at router (/Volumes/Garage/GORO/mean_goro/node_modules/express/lib/router/index.js:46:12)
    at Layer.handle [as handle_request] (/Volumes/Garage/GORO/mean_goro/node_modules/express/lib/router/layer.js:95:5)
    at trim_prefix (/Volumes/Garage/GORO/mean_goro/node_modules/express/lib/router/index.js:312:13)
    at /Volumes/Garage/GORO/mean_goro/node_modules/express/lib/router/index.js:280:7
    at Function.process_params (/Volumes/Garage/GORO/mean_goro/node_modules/express/lib/router/index.js:330:12)
    at next (/Volumes/Garage/GORO/mean_goro/node_modules/express/lib/router/index.js:271:10)
    at Layer.handle [as handle_request] (/Volumes/Garage/GORO/mean_goro/node_modules/express/lib/router/layer.js:91:12)
    at trim_prefix (/Volumes/Garage/GORO/mean_goro/node_modules/express/lib/router/index.js:312:13)
    at /Volumes/Garage/GORO/mean_goro/node_modules/express/lib/router/index.js:280:7
    at Function.process_params (/Volumes/Garage/GORO/mean_goro/node_modules/express/lib/router/index.js:330:12)
    at next (/Volumes/Garage/GORO/mean_goro/node_modules/express/lib/router/index.js:271:10)

但这些都没有奏效。请帮帮我..我绝望了： - （

++ 这是我的＃ideas.sdex.controller.js＆＃39;文件。

{user: {$ne: $stateParams.userId}}
{user: {$not: $stateParams.userId}}
{$ne: {user: $stateParams.userId}}
{$not: {user: $stateParams.userId}}

Answer 1

gatherThoughtsIndex 和 userThoughtsIndex 路由从网址获取userId参数，但主路由不接受此类参数。

您的api调用将从stateProvider获取您生成的查询对象，并调用该服务器。但是，由于您没有在主路由中生成查询参数，因此您必须在没有任何查询参数的情况下进行api调用。

您必须以这种方式更新后端 -

没有传递查询参数时
如果用户已登录
- 返回除
否则
- 回归所有想法

我希望这对你有意义。：）

怎么办＆＃39;显示除了我的所有帖子＆＃39;在MEAN堆栈？

1 个答案: