如何将用户存储在会话中 [英] How to store the user in a session

问题描述

我正在尝试使用django-rest-framework后端设置ember-simple-auth，但是将用户保存到会话中遇到麻烦。我必须能够在我的模板中做这样的事情：

 < h2>欢迎回来，{{session.user }}< / H2> 
  

所以我发现以下几个指南，我已经得到了认证和授权，所以我可以得到一个有效的令牌和使用是在请求中。为了让用户在会话中，我修改了 App.CustomAuthenticator.authenticate ，以便在返回令牌时，用户名也存储到会话中：

  authenticate：function（credentials）{
 var _this = this; 
 return new Ember.RSVP.Promise（function（resolve，reject）{
 Ember。$。ajax（{
 url：_this.tokenEndpoint，
 type：'POST' 
 data：JSON.stringify（{username：credentials.identification，password：credentials.password}），
 contentType：'application / json'
}）然后（function（response）{ 
 Ember.run（function（）{
 resolve（{
 token：response.token，
 username：credentials.identification 
}）; 
} ）; 
}，function（xhr，status，error）{
 var response = JSON.parse（xhr.responseText）; 
 Ember.run（function（）{
 reject （response.error）; 
}）; 
}）; 
}）; 
}，
  

然后我修改了 Application.intializer 给出会话 a 用户属性：

  Ember.Application.initializer（{
 name：'authentication'，
 before：'simple-auth'，
 initialize：function（container，应用程序）{
 //注册自定义验证器和授权器，因此Ember Simple Auth可以找到
 container.register（'authentator：custom'，App.CustomAuthenticator）; 
 container.register（'授权者：custom'，App.CustomAuthorizer）; 
 SimpleAuth.Session.reopen（{
 user：function（）{
 var username = this.get（'username'）; 
 if（！Ember.isEmpty（username））{
 return container.lookup（'store：main'）。find（'user'，{username：username}）; 
} 
 } .property（'username'）
}）; 
} 
}）; 
  

但是，当 {{session.user.username}} 被渲染，它只是一个空字符串。我的问题是：

1. 这真的是分配用户到会话的最好方式吗？对我来说似乎很笨拙，但我看不到任何更好的东西。


2. 我假设空字符串是因为承诺答复而不是用户对象，那么如何解决呢？

解决方案

您现在可以指定自定义会话类而无需重新打开，请参阅发行说明： https://github.com/simplabs/ember-simple-auth/releases/tag/0.6.4 。这是它的工作原理：

  App.CustomSession = SimpleAuth.Session.extend（{
 account：function（） {
 var accountId = this.get（'account_id'）; 
 if（！Ember.isEmpty（accountId））{
 return this.container.lookup（'store：main'）。 find（'account'，accountId）; 
} 
} .property（'account_id'）
}）; 
 ... 
 container.register（'session：custom'，App.CustomSession）; 
 ... 
 window.ENV ['simple-auth'] = {
 session：'session：custom'，
} 
  / pre> 
I am trying to set up ember-simple-auth with a django-rest-framework backend, but I'm running into some trouble saving the user to the session.  I have to be able to do something like this in my templates:
<h2>Welcome back, {{session.user}}</h2>
So following several guides I found, I have got the authentication and authorization working so that I can get a valid token and use is in requests.  To get the user on the session, I have modified App.CustomAuthenticator.authenticate so that when the token is returned, the username is also stored to the session:
authenticate: function(credentials) {
    var _this = this;
    return new Ember.RSVP.Promise(function(resolve, reject) {
        Ember.$.ajax({
            url: _this.tokenEndpoint,
            type: 'POST',
            data: JSON.stringify({username: credentials.identification, password: credentials.password }),
            contentType: 'application/json'
        }).then(function(response) {
            Ember.run(function() {
                resolve({
                    token: response.token,
                    username: credentials.identification
                });
            });
        }, function(xhr, status, error) {
            var response = JSON.parse(xhr.responseText);
            Ember.run(function() {
                reject(response.error);
            });
        });
    });
},
I then modified Application.intializer to give session a user property:
Ember.Application.initializer({
    name: 'authentication',
    before: 'simple-auth',
    initialize: function(container, application) {
        // register the custom authenticator and authorizer so Ember Simple Auth can find them
        container.register('authenticator:custom', App.CustomAuthenticator);
        container.register('authorizer:custom', App.CustomAuthorizer);
        SimpleAuth.Session.reopen({
            user: function() {
              var username = this.get('username');
              if (!Ember.isEmpty(username)) {
                return container.lookup('store:main').find('user', {username: username});
              }
            }.property('username')
        });
    }
});
However, when {{session.user.username}} is rendered it is just an empty string.  My questions are:

Is this really the best way to assigning a user to the session?  It seems clumsy to me but I can't see anything better.
I assume that the empty string is because a Promise is returned rather than a User object, so how to I resolve it?

解决方案
With the latest release you can now specify a custom session class without having to reopen, see release note here: https://github.com/simplabs/ember-simple-auth/releases/tag/0.6.4. This is how it works:
App.CustomSession = SimpleAuth.Session.extend({
  account: function() {
    var accountId = this.get('account_id');
    if (!Ember.isEmpty(accountId)) {
      return this.container.lookup('store:main').find('account', accountId);
    }
  }.property('account_id')
});
…
container.register('session:custom', App.CustomSession);
…
window.ENV['simple-auth'] = {
  session: 'session:custom',
}


                        
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