Question

我正在使用离子框架和firebase进行安卓游戏。

我的计划是让用户使用firebase登录facebook登录，之后我想将游戏数据保存到用户数据库密钥。

第一部分正在运作。该脚本根据用户的Facebook详细信息生成数据库数组。但问题是在这之后，我似乎无法让角度改变任何数据库数据。似乎authData卡在登录功能中......

有没有办法让authdata用于不同的控制器和功能？

app.factory("Auth", function($firebaseAuth) {
    var FIREB = new Firebase("https://name.firebaseio.com");
    return $firebaseAuth(FIREB);
});

app.controller('HomeScreen', function($scope,  Auth, $firebaseArray) {
    Auth.$onAuth(function(authData){
        $scope.authData = authData;
    });
    var users = new Firebase("https://name.firebaseio.com/users/");
    // create a synchronized array
    $scope.users = $firebaseArray(users);
    $scope.facebooklogin = function() {

        Auth.$authWithOAuthPopup("facebook").then(function(authData){

            users.child(authData.facebook.cachedUserProfile.id).set({
                Username: authData.facebook.displayName,
                Id: authData.facebook.cachedUserProfile.id,
                Gender: authData.facebook.cachedUserProfile.gender,
                Email: authData.facebook.email,
                level: "1"
            });

        }).catch(function(error){

        });
    }
    $scope.facebooklogout = function() {
        Auth.$unauth();
    }
    $scope.changeLVL = function(authData) {
        users.child(authData.facebook.cachedUserProfile.id).set({
            level: "2"
        });
    }


});

这是它在firebase中创建的数据结构

 users
   998995300163718
     Email: "Name@email.com"
     Gender: "male"
     Id:  "998995300163718"
     Username: "name lastname" 
     level: "1"

在尝试编辑后我得到了这个错误......（使用changelevel函数）

TypeError: Cannot read property 'facebook' of undefined
    at Scope.$scope.changeLVL (http://localhost:8100/js/controllers.js:35:23)
    at fn (eval at <anonymous> (http://localhost:8100/lib/ionic/js/ionic.bundle.js:21977:15), <anonymous>:4:218)
    at http://localhost:8100/lib/ionic/js/ionic.bundle.js:57606:9
    at Scope.$eval (http://localhost:8100/lib/ionic/js/ionic.bundle.js:24678:28)
    at Scope.$apply (http://localhost:8100/lib/ionic/js/ionic.bundle.js:24777:23)
    at HTMLButtonElement.<anonymous> (http://localhost:8100/lib/ionic/js/ionic.bundle.js:57605:13)
    at HTMLButtonElement.eventHandler (http://localhost:8100/lib/ionic/js/ionic.bundle.js:12103:21)
    at triggerMouseEvent (http://localhost:8100/lib/ionic/js/ionic.bundle.js:2870:7)
    at tapClick (http://localhost:8100/lib/ionic/js/ionic.bundle.js:2859:3)
    at HTMLDocument.tapMouseUp (http://localhost:8100/lib/ionic/js/ionic.bundle.js:2932:5)

Answer 1

主要问题是您依赖cachedUserProfile.gender属性存在。不保证每个用户都可以使用。您需要找到一个后备来避免错误。

让我们通过路由器中的resolve()方法注入用户来简化。不要介意代码的结构，它来自Angular Styleguide（我首选编写Angular应用程序的方式）。

angular.module("app", ["firebase"])
  .config(ApplicationConfig)
  .factory("Auth", Auth)
  .controller("HomeScreen", HomeController);

function Auth() {
  var FIREB = new Firebase("https://name.firebaseio.com");
  return $firebaseAuth(FIREB);
}

function ApplicationConfig($stateProvider) {
  $stateProvider
    .state("home", {
      controller: "HomeScreen",
      templateUrl: "views/home.html"
    })
    .state("profile", {
      controller: "ProfileScreen",
      templateUrl: "views/profile.html",
      resolve: {
        currentUser: function(Auth) {
          // This will inject the authenticated user into the controller
          return Auth.$waitForAuth(); 
        }
      }
    });
}

function HomeController($scope, Auth, $state) {

  $scope.googlelogin = function() {

    Auth.$authWithOAuthPopup("google").then(function(authData) {

      users.child($scope.authData.google.cachedUserProfile.id).set({
        Username: $scope.authData.google.cachedUserProfile.id,
        Gender: $scope.authData.google.cachedUserProfile.gender || ""
      });

      $state.go("app.next");

    });
  }

}

function ProfileController(currentUser) {
  console.log(currentUser.facebook); // injected from router
}

此方法的好处是您无需在控制器中检查经过身份验证的用户。如果注入了用户，则表示您拥有经过身份验证的用户。

查看AngularFire docs了解详情。

angularfire无法读取属性facebook - 我如何在整个应用程序中继续使用authData

1 个答案: