javascript - AngularJs 检查每个请求的用户

Question

我试图通过每个请求来识别用户。现在这是我的 routes 文件:

(function () {

angular.module('employeeApp').config(routeModule).run(run);

routeModule.$inject = ['$routeProvider'];

function routeModule($routeProvider)
{
    $routeProvider.when('/', {
        templateUrl: '../views/login.html',
        controller: 'authenticationController',
        controllerAs: 'authenticationCtrl'
    })
    .when('/home', {
        templateUrl: '../views/index.html',
        controller: 'homeController',
        controllerAs: 'homeCtrl',
        resolve: {
            message: function(authenticationFactory){
                return authenticationFactory.validateUser();
            }
        }
    })
    .when('/werknemer/:id', {
        templateUrl: '../views/employee/employee.html',
        controller: 'employeeController',
        controllerAs: 'employeeCtrl'
    })
    .otherwise({
        redirectTo: '/'
    });
}


function run(authenticationFactory)
{
    authenticationFactory.validateUser()
    .then(function (response) {
        console.log('validateuser');
        constants.firstname = response.data.result.Employee.FirstName;
        constants.companyid = response.data.result.Employee.CompanyId;
        constants.employeeid = response.data.result.Employee.EmployeeId;

    }, function () {
        $location.path('/');
});
}

})();

函数 run 使用 authenticationFactory，如下所示:

(function()
{
    angular.module('employeeApp').factory('authenticationFactory', authenticationFactory);

    function authenticationFactory($cookieStore,$cookies,requestFactory,$location,GLOBALS,constants)
    {
        var factory = {};



        factory.validateUser = function()
        {
            var vm = this;

            if($location.path() != '/')
            {
                var api_token = factory.getToken();

                factory.isValidToken(api_token).then(function(response) {
                    if (response.status != 200) {
                        $location.path('/');
                    }
                    data = {"api_token": api_token};
                    requestFactory.post(GLOBALS.url + 'show/employee/' + $cookies.get('employeeid'), data)
                });
            }
        }

        return factory;
    }
})()

但是现在我在控制台中收到错误:

routes.js:38 Uncaught TypeError: Cannot read property 'then' of undefined

我做错了什么？

--编辑--

factory.validateUser = function()
        {
            var vm = this;

            if($location.path() != '/')
            {
                var api_token = factory.getToken();

                factory.isValidToken(api_token).then(function(response) {
                    if (response.status != 200) {
                        $location.path('/');
                    }
                    data = {"api_token": api_token};
                    return requestFactory.post(GLOBALS.url + 'show/employee/' + $cookies.get('employeeid'), data)
                });
            }
        }

Answer 1

如果 if 子句失败，您的 validateUser 函数不会返回任何内容，解析机制始终期望返回一个 Promise。

尝试在 if 子句后面添加这个自动解析的 Promise，以用作 else:

var q = $q.defer();
q.resolve();
return q.promise;

不要忘记将 $q (AngularJS 的 Promise 实现)注入(inject)到服务中。