javascript - 如何从 {$$state : Object}? 获取数据

Question

我尝试使用工厂从数据库中获取数据。我有一个问题，因为我不知道如何从工厂返回的对象中获取数据。这是我在使用 console.log() 函数时收到的:

>d {$$state: Object}
 $$state: Object
  status: 1
  value: Array[1]
 __proto__: Object
 __proto__: Object

这是我的工厂代码:

application.factory('Database', ['$http', function($http) {
   var databaseFactory = {};
    databaseFactory.get = function(query) {
        return $http.get("getData.php", {params: {'query': query}}, {headers: {'Content-Type': 'application/x-www-form-urlencoded'}})
            .then(function (response) {
                databaseFactory.returnedData = response.data;
                return databaseFactory.returnedData;
            })
    }
    return databaseFactory;
}]);

这是我的 Controller 代码:

registration.controller('RegistrationController', ['$scope', 'Database', function($scope, Database) {
    $scope.posts = Database.get("SELECT * FROM `group`");
    console.log($scope.posts);
}]);

Answer 1

您应该从 Controller 传递一个回调函数，并在收到 AJAX 响应后在您的工厂中执行它。您可以将代码更新为以下内容。

工厂

application.factory('Database', ['$http', function($http) {
   var databaseFactory = {};
    databaseFactory.get = function(query, callback) {
        return $http.get("getData.php", {params: {'query': query}}, {headers: {'Content-Type': 'application/x-www-form-urlencoded'}})
            .then(function (response) {
                databaseFactory.returnedData = response.data;
                callback(databaseFactory.returnedData);
            })
    }
    return databaseFactory;
}]);

Controller

registration.controller('RegistrationController', ['$scope', 'Database', function($scope, Database) {
    Database.get("SELECT * FROM `group`", function(resp){
           $scope.posts =  resp;
           console.log($scope.posts);
   });

}]);