上下文 用户可以使用标识其页面的唯一URL slug进行注册,例如' http://example.com/slug'
当前状态 在我的Express.js文件中,我成功检查了我的数据库以查看用户是否存在slug,然后重定向用户来自' http://example.com/slug' 至' http://example.com/#!/slug'利用Angular的路由。
但是,使用Angular,我无法在路由器文件中使用$ http或$ location服务(因为它发生在module.config中...有关详细信息,请参阅this Stack Overflow explanation )。
欲望 基本上我想要做的是将用户路由到一个默认的'找到有效的slug时查看,如果找不到则查看home。任何建议都会非常感激。
作为参考,我的module.config代码可以在这里找到(注意我想要使用的'默认'状态是'搜索'):
core.client.routes.js
'use strict';
// Setting up route
angular.module('core').config(['$stateProvider', '$urlRouterProvider',
function($stateProvider, $urlRouterProvider) {
// Redirect to home when route not found.
$urlRouterProvider.otherwise('/');
// Home state routing
$stateProvider.
state('home', {
url: '/',
templateUrl: 'modules/core/views/home.client.view.html'
}).
state('search', {
url: '/search',
templateUrl: 'modules/core/views/search.client.view.html'
});
}
]);
我想做什么,是这样的......
'use strict';
// Setting up route
angular.module('core').config(['$stateProvider', '$urlRouterProvider', '$http', '$location',
function($stateProvider, $urlRouterProvider, $http, $location) {
// Get current slug, assign to json.
var slug = $location.path();
var data = {
link: slug
};
// Check db for slug
$http.post('/my/post/route', data).success( function(response) {
// Found slug in db
}).error( function(response) {
// Route to home
$location.path('/');
});
// Home state routing
$stateProvider.
state('home', {
url: '/',
templateUrl: 'modules/core/views/home.client.view.html'
}).
state('search', {
// Set URL to slug
url: '/' + slug,
templateUrl: 'modules/core/views/search.client.view.html'
});
}
]);
答案 0 :(得分:2)
要直接回答您的问题,您要做的是使用路线“resolve”来检查依赖关系并重定向到相应的视图:
angular.module('app', ['ui.router','ngMockE2E'])
.run(function ($httpBackend) {
$httpBackend.whenGET(/api\/slugs\/.*/).respond(function (method, url) {
return url.match(/good$/) ? [200,{name: 'john doe'}] : [404,''];
});
})
.config(function ($stateProvider) {
$stateProvider
.state(
'search',
{
url: '/search?terms=:slug',
template: '<h1>Search: {{vm.terms}}</h1>',
controllerAs: 'vm',
controller: function ($stateParams) {
this.terms = $stateParams.slug;
}
}
)
.state(
'slug',
{
url: '/:slug',
template: '<h1>Slug: {{vm.user.name}}</h1>',
controllerAs: 'vm',
controller: function (user) {
this.user = user
},
resolve: {
user: function ($q, $http, $stateParams, $state) {
var defer = $q.defer();
$http.get('http://somewhere.com/api/slugs/' + $stateParams.slug)
.success(function (user) {
defer.resolve(user);
})
.error(function () {
defer.reject();
$state.go('search', {slug: $stateParams.slug});
});
return defer.promise;
}
}
}
);
});
<div ng-app="app">
<script data-require="angular.js@*" data-semver="1.3.6" src="https://code.angularjs.org/1.3.6/angular.js"></script>
<script data-require="ui-router@*" data-semver="0.2.13" src="//rawgit.com/angular-ui/ui-router/0.2.13/release/angular-ui-router.js"></script>
<script data-require="angular-mocks@*" data-semver="1.3.5" src="https://code.angularjs.org/1.3.5/angular-mocks.js"></script>
<a ui-sref="slug({slug: 'good'})">Matched Route</a>
<a ui-sref="slug({slug: 'bad'})">Redirect Route</a>
<div ui-view></div>
</div>
但是,在您的示例中,您可能需要重新审视一些事项: