本文介绍了Ember CLI - 注入服务的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我使用 Ember CLI(生成蓝图)创建了以下服务和初始化程序:
I created the following service and initializer using Ember CLI (generate blueprint):
// services/session.js
import Ember from 'ember';
export default Ember.Object.extend({
loggedIn: false,
...
});
// initializers/session.js
export default {
name: 'session',
initialize: function(container, app) {
app.inject('route', 'session', 'service:session');
app.inject('controller', 'session', 'service:session');
}
};
然而,当试图在路由或控制器中访问它时,会话是未定义的.我错过了一步吗?
However, the session is undefined when attempting to access it in a route or controller. Am I missing a step?
// routes/application.js
import Ember from 'ember';
export default Ember.Route.extend({
beforeModel: function() {
var loggedIn = this.session.get('loggedIn'); // undefined
...
}
});
推荐答案
注入的服务是延迟加载的,你必须通过 getter this.get('session')
而不是直接this.session.
Injected services are lazy loaded, you have to access them via a getter this.get('session')
and not directly this.session
.
此外,如果您愿意,您可能需要查看 Ember-Simple-Auth重新进行身份验证.
Also, you may want to check out Ember-Simple-Auth if you're doing authentication.
这篇关于Ember CLI - 注入服务的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!