Mongoose文档更新错误 [英] Mongoose document update error

问题描述

使用节点和 mongoose 最近，我喜欢它，直到我不得不更新一个模型。

Been working with node and mongoose lately and I enjoyed it until I had to update a model.

这里是我在做什么：

module.exports.update = (post, cb) ->
  Post.update _id: post._id, post, (err, data) ->
    cb(err, data)

所以我认为这将是一个简单的保存一个新的帖子，但它抱怨
与错误：

So I thought it'll be a easy as saving a new post but it's complaining with error:

错误：'不允许'_id'

err: 'Mod on _id not allowed'

我试图删除 post._id ，然后将其传递给我的更新方法，但它没有工作和I
找不到任何好的例子，如何做，除了一个看起来
a位奇数，首先你找到 Post 通过 _id ，然后手动更新每个键
并保存重新发布...

I tried to delete post._id before passing it to my update method, but it didn't work and I couldn't find any good examples on how to do it except one that looks a bit odd where first you find Post by _id, then update each key manually and save Post back again...

p>

推荐答案

您在正确的轨道上删除 post._id 到更新。假设 post 是一个纯JS对象，这应该工作：

You were on the right track with deleting post._id before passing it to update. Assuming post is a plain JS object, this should work:

module.exports.update = (post, cb) ->
  id = post._id
  delete post._id
  Post.update _id: id, post, (err, data) ->
    cb(err, data)

这篇关于Mongoose文档更新错误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！