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freeCodeCamp/curriculum/challenges/chinese/05-apis-and-microservices/mongodb-and-mongoose/perform-new-updates-on-a-document-using-model.findoneandupdate.chinese.md

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---
id: 587d7fb8367417b2b2512c0f
title: Perform New Updates on a Document Using model.findOneAndUpdate()
challengeType: 2
forumTopicId: 301542
localeTitle: 使用 model.findOneAndUpdate() 对更新 document
---
## Description
<section id='description'>
最近发布的 mongoose 版本简化了 document 的更新方式,但同时,一些高级功能(如 pre/post hook, 验证)的使用方式也变得和以前不同。因此,在很多情景下,上一个挑战中提到的老方法其实更常用。新方法的加入,可以让我们使用 <code>findByIdAndUpdate()</code> 来进行基于 Id 的搜索。
</section>
## Instructions
<section id='instructions'>
<code>personName</code> 作为 <code>Name</code> 的查找条件,并将查到的 person 年龄设为 20 岁。
<strong>提示:</strong>你需要返回更新后的 document。你可以把 <code>findOneAndUpdate()</code> 的第三个参数设置为 <code>{new: true}</code>。默认情况下,这个方法会返回修改前的数据。
</section>
## Tests
<section id='tests'>
```yml
tests:
- text: 应成功地使用 findOneAndUpdate 更新数据
testString: 'getUserInput => $.post(getUserInput(''url'') + ''/_api/find-one-update'', {name:''Dorian Gray'', age: 35, favoriteFoods:[''unknown'']}).then(data => { assert.equal(data.name, ''Dorian Gray'', ''item.name is not what expected''); assert.equal(data.age, 20, ''item.age is not what expected''); assert.deepEqual(data.favoriteFoods, [''unknown''], ''item.favoriteFoods is not what expected''); assert.equal(data.__v, 0, ''findOneAndUpdate does not increment version by design !!!''); }, xhr => { throw new Error(xhr.responseText); })'
```
</section>
## Challenge Seed
<section id='challengeSeed'>
</section>
## Solution
<section id='solution'>
```js
/**
Backend challenges don't need solutions,
because they would need to be tested against a full working project.
Please check our contributing guidelines to learn more.
*/
```
</section>