在Meteor.js中，为什么this.userId ==未定义? [英] In Meteor.js, Why is this.userId == undefined?

问题描述

我正在通过学​​习本书来学习Meteor，现在我们想insert()当前登录用户的userId.

I'm learning Meteor by following a book, and right now we want to insert() the userId of the user that is currently logged in.

Template.categories.events({

    'keyup #add-category': function(e, t) {
        if(e.which == 13) {
          var catVal = String(e.target.value || "");
          if(catVal) {
            lists.insert({Category: catVal, owner: this.userId});
            console.log(this.userId);
            Session.set('adding_category',false);
          }
        }
    },

但是this.userId未定义，因此insert()未能按预期工作.要使它正常工作，缺少什么?

However this.userId was undefined, so the insert() didnt work as expected. What's missing to get this working?

它在下面的代码中以某种方式工作(定义了userId):

Somehow it works in the code below (userId is defined):

lists.allow({
    insert: function(userId, doc) {
      return adminUser(userId);
    },
    update: function(userId, docs, fields, modifier) {
      return adminUser(userId);
    },
    remove: function(userId, docs) {
      return adminUser(userId);
    }
});

---

更新

为什么在服务器端this.userId起作用但Meteor.userId()不起作用?

---

Update

Why is it that on the server-side, this.userId works but not Meteor.userId()?

Meteor.publish("Categories", function() {
    return lists.find({owner:this.userId}, {fields:{Category:1}});
});

推荐答案

您应该改用Meteor.userId().

这篇关于在Meteor.js中，为什么this.userId ==未定义?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IT屋！