TypeError:更新文档时在非对象上调用Object.keys [英] TypeError: Object.keys called on non-object when updating document

问题描述

我正在尝试通过增加计数器并将对象推入数组来更新现有文档.

I'm trying to update an existing document by increment a counter and pushing an object to an array.

以下是用户的架构:

var UserSchema = new Schema({
  [...]
  posts: {
    totalWords: { type: Number, min: 0, default: 0 },
    _entries: [
      {
        words: { type: Number, min: 0 },
        body: { type: String },
        date: Date
      }
    ]
  },
});

这是更新代码:

var newPost = {
  words: req.body.words,
  body: req.body.entry,
  date: new Date()
};

User.findOne(req.user._id, function (err, user) {
  var previous = user.posts.totalWords;
  user.posts.totalWords = previous + newPost.words;
  user.posts._entries.push(newPost);

  user.save(function (err) {
    if (err) return res.send(400, err);
    return res.json(newPost);
  });
});

我收到以下错误:

[TypeError: Object.keys called on non-object]

关于如何解决此问题的任何想法?

Any ideas on how to solve this?

推荐答案

回答我自己的问题

我能够通过以下方式解决问题:

I was able to solve the problem by changing:

User.findOne(req.user._id, function (err, user) { [...] });

对此:

User.findById(req.user._id, function (err, user) { [...] });

这篇关于TypeError:更新文档时在非对象上调用Object.keys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！