41 lines
1.7 KiB
Markdown
41 lines
1.7 KiB
Markdown
|
---
|
|||
|
|
id: 587d7fb8367417b2b2512c0f
|
|||
|
|
title: Perform New Updates on a Document Using model.findOneAndUpdate()
|
|||
|
|
localeTitle: 使用model.findOneAndUpdate（）对文档执行新更新
|
|||
|
|
challengeType: 2
|
|||
|
|
---
|
|||
|
|
|
|||
|
|
## Description
|
|||
|
|
<section id='description'> <code>0</code>最新版本的mongoose具有简化文档更新的方法。一些更高级的功能（即前/后挂钩，验证）与此方法的行为不同，因此Classic方法在许多情况下仍然有用。在按Id搜索时可以使用findByIdAndUpdate（）。 <code>0</code>按名称查找人员并将其年龄设置为20.使用函数参数personName作为搜索关键字。 <code>0</code>提示：我们希望您返回更新的文档。为此，您需要将选项文档{new：true}作为findOneAndUpdate（）的第三个参数传递。默认情况下，这些方法返回未修改的对象。
|
|||
|
|
</section>
|
|||
|
|
|
|||
|
|
## Instructions
|
|||
|
|
<section id='instructions'>
|
|||
|
|
|
|||
|
|
</section>
|
|||
|
|
|
|||
|
|
## Tests
|
|||
|
|
<section id='tests'>
|
|||
|
|
|
|||
|
|
```yml
|
|||
|
|
tests:
|
|||
|
|
- text: findOneAndUpdate项应该成功
|
|||
|
|
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
|
|||
|
|
// solution required
|
|||
|
|
```
|
|||
|
|
</section>
|