流星：注册用户，然后自动登录

Question

我有一个参与在线实验的同意书。一旦参与者同意同意书，我想为他们创建一个用户帐户并将其添加到Players集合中。我不希望用户选择他们的用户名（如果没有密码，我更喜欢）。界面中不应该有登录/注册，全部自动完成。我当前的代码：

的consent_page.js具有下面的代码：

import './consent_page.html'; 
import { FlowRouter } from 'meteor/kadira:flow-router'; 
import { Template } from 'meteor/templating'; 
import { Meteor } from 'meteor/meteor' 

Template.consent_page.events({ 
    'submit .consent-form'(event) { 
     event.preventDefault(); 
     Meteor.call('players.addPlayer'); 
     FlowRouter.go('/instructions') 
    } 
}); 

的players.addPlayer方法被称为是：

import { Meteor } from 'meteor/meteor'; 
import { Players } from './players.js'; 
import { Random } from 'meteor/random' 
import { Accounts } from 'meteor/accounts-base'; 

Meteor.methods({ 
    'players.addPlayer'() { 
     console.log('I am in the method'); 
     const random_username = Random.id(); 
     const random_password = Random.id(); 
     user = Accounts.createUser({ 
      username: random_username, 
      password: random_password 
     }); 

     Players.insert({ 
      _id: this.userId, 
      enterTime: new Date(), 
      status: 'instructions', 
      passedQuiz: false, 
      quizAttempts: 0, 
      needRematch: false, 
      condition: 'control', 
      consent: true 
     }); 

     if (user){ 
      return user 
     } else { 
      console.log('no user') 
     } 
    } 
}); 

然而，这似乎并没有自动登录用户，如我收到以下错误：

I20170816-13:57:59.061(-4)? I am in the method 
I20170816-13:57:59.248(-4)? Exception while invoking method 'players.addPlayer' Error: Meteor requires document _id fields to be non-empty strings or ObjectIDs 
I20170816-13:57:59.248(-4)?  at [object Object].insert (packages/mongo/collection.js:478:13) 
I20170816-13:57:59.249(-4)?  at [object Object].Meteor.methods.players.addPlayer (imports/api/players/methods.js:17:17) 
I20170816-13:57:59.250(-4)?  at maybeAuditArgumentChecks (packages/ddp-server/livedata_server.js:1768:12) 
I20170816-13:57:59.250(-4)?  at packages/ddp-server/livedata_server.js:719:19 
I20170816-13:57:59.251(-4)?  at [object Object].EVp.withValue (packages/meteor.js:1135:15) 
I20170816-13:57:59.251(-4)?  at packages/ddp-server/livedata_server.js:717:46 
I20170816-13:57:59.251(-4)?  at [object Object].EVp.withValue (packages/meteor.js:1135:15) 
I20170816-13:57:59.252(-4)?  at packages/ddp-server/livedata_server.js:715:46 
I20170816-13:57:59.252(-4)?  at [object Object]._.extend.protocol_handlers.method (packages/ddp-server/livedata_server.js:689:23) 
I20170816-13:57:59.252(-4)?  at packages/ddp-server/livedata_server.js:559:43 

问题是this.userId返回null。如果我用其他东西替换Players.insert(..)中的_id，我可以在mongodb中看到用户被添加到用户集合和玩家集合中。

我如何建立连接/登录用户创建他们的帐户，所以我可以立即使用this.userId？我可以禁用密码吗？

Answer 1

您正在服务器上运行此操作，因此用户不会自动登录。当您尝试引用它来创建播放器时，this.userId将不确定。

您需要从客户端调用Accounts.createUser()，然后调用该方法将播放器从回调中插入到createUser()。