javascript - 我如何将范围从 Controller 传递到 angularjs 中的服务？

Question

我有以下 Controller :

'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);
        }

    }]);

我想将位于我 View 中的名为 ng-model="symbol_wanted" 的绑定(bind) ng-model 传递给以下服务...

'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}
      });
    }]);

我如何连接 Controller 的范围以传递到服务中？谢谢!

Answer 1

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

你不能将 $scope 注入(inject)到服务中，没有 Singleton $scope 这样的东西。

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

您可以这样调用服务并传递参数:

    .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这样的 promise :

 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:

演示 Fiddle