AngularJS：我如何从$ http获取变量。到另一个控制器？

Question

我一直在使用的Moodle的WS的angularjs web应用程序来获取信息，我有一个变量的一个小问题，我想从一个$http.得到一个变量，我看见你可以使用服务作为一个选项或$rootscope，但对我来说没有工作。

我有两个控制器，我想通过$scope.userid到cursostCtrl

app.controller('userCtrl', function ($scope, $http) { 



    field = '&field=username'; 
    values = '&values[0]=adminaccap'/*+$scope.username*/; 


    url = concatUrl + 'core_user_get_users_by_field' + field + values; 


    $http.get(url).then(function (response) { 
     $scope.items = response.data; 
     $scope.userid = response.data[0].id; 
    }) 

    return $scope.userid; 

}); 


app.controller('cursostCtrl', function($scope, $http){ 

    url2 = concatUrl + 'core_enrol_get_users_courses' + '&userid=' + $scope.userid; 

    $http.get(url2).then(function (response) { 
     $scope.cursos = response.data; 
     $scope.nombrecurso = response.data[0].fullname; 
    }) 

您的帮助谢谢！

Answer 1

着这里的办法是撒施从一个控制器事件和处理其他控制器

事件在您userCtrl广播一个事件rootScope为您cursostCtrl也遵循

app.controller('userCtrl', function ($rootScope,$scope, $http) { 

     field = '&field=username'; 
     values = '&values[0]=adminaccap'/*+$scope.username*/; 
     url = concatUrl + 'core_user_get_users_by_field' + field + values; 

     $http.get(url).then(function (response) { 
      $scope.items = response.data; 
      $scope.userid = response.data[0].id; 
      $rootScope.$broadcast("myBroadCastedEvent",{myUser:$scope.userid}); 
     }) 

     return $scope.userid; 

    }); 

获得广播的活动范围在如下

app.controller('cursostCtrl', function($scope, $http){ 
    $scope.$on("myBroadCastedEvent", function (event, args) { 
       $scope.userid = args.myUser; 
      }) 

    url2 = concatUrl + 'core_enrol_get_users_courses' + '&userid=' + $scope.userid; 

    $http.get(url2).then(function (response) { 
     $scope.cursos = response.data; 
     $scope.nombrecurso = response.data[0].fullname; 
    }) 

Answer 2

你可以像如下广播HTTP成功后的事件 -

在控制器1 -

$http.get(url).then(function (response) { 
     // assuming you need response in another controller 
     $rootScope.$broadcast('GotResponse',response); 
    }) 

在控制器2 -

$scope.$on('GotResponse', function(event,response){ 
    // this variable response is what you got from http 
    console.log('response--',response); 
});