我如何将范围从控制器传递给 angularjs 中的服务? [英] how do i pass scope from controller to service in angularjs?

问题描述

我有以下控制器:

'use strict';

  /* Controllers */

  angular.module('stocks.controllers', []).
    controller('MyCtrl1', ['$scope', '$http', 'stockData', function MyCtrl1 ($scope, $http, stockData) {

        $scope.submit = function() {




        $scope.info = stockData.query();
        console.dir($scope.info);
        }

    }]);

并且我想将位于我的视图中名为 ng-model="symbol_wanted" 的绑定 ng-model 传递给以下服务...

and i want to pass a bound ng-model that sits in my view called ng-model="symbol_wanted" to the following service...

'use strict';

    /* Services */

    angular.module('stocks.services', ['ngResource']).factory('stockData', ['$resource',
      function($resource){
        return $resource('http://query.yahooapis.com/v1/public/yql?q=select%20*%20from%20yahoo.finance.quotes%20where%20symbol%20in%20(%22YHOO%22)%0A%09%09&env=http%3A%2F%2Fdatatables.org%2Falltables.env&format=json', {}, {
        query: {method:'GET', isArray:false}
      });
    }]);

如何连接控制器的作用域以传递到服务中?谢谢！

how do i connect the controller's scope to get passed into the service? thanks!

推荐答案

如何在 angularjs 中将作用域从控制器传递给服务?

how do i pass scope from controller to service in angularjs?

你不能将 $scope 注入到服务中，没有单例 $scope 这样的东西.

You can't inject $scope into services, there is no such thing as a Singleton $scope.

我想将我视图中名为 ng-model="symbol_wanted" 的绑定 ng-model 传递给以下服务...

i want to pass a bound ng-model that sits in my view called ng-model="symbol_wanted" to the following service...

您可以通过这种方式调用服务并传递参数:

You can call the service and pass parameters this way:

    .factory('stockData', ['$resource', '$q', function ($resource, $q) {

    var factory = {
        query: function (value) {

            // here you can play with 'value'

            var data = $resource('http://query.yahooapis.com/v1/public/yql?q=select%20*%20from%20yahoo.finance.quotes%20where%20symbol%20in%20(%22YHOO%22)%0A%09%09&env=http%3A%2F%2Fdatatables.org%2Falltables.env&format=json', {}, {
                query: {
                    method: 'GET',
                    isArray: false
                }
            });
            var deferred = $q.defer();
            deferred.resolve(data);
            return deferred.promise;
        }

    }
    return factory;
}]);

所以我们调用这个服务并得到一个这样的承诺:

So we call this service and get a promise back like this:

 stockData.query(value) // <-- pass value
        .then(function (result) {
        $scope.data = result;            
    }, function (result) {
        alert("Error: No data returned");
    });

顺便说一句，我建议你使用 $http.get:

BTW, I'd suggest you use $http.get:

演示 小提琴

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