bcef08424c
* add solution to a challenge add solution to the challenge: add-a-description-to-your-package-json * add comment to all backend challenges The comment expllains that these challenges don't need a solution.
48 lines
1.9 KiB
Markdown
48 lines
1.9 KiB
Markdown
---
|
|
id: 587d7fb8367417b2b2512c0f
|
|
title: Perform New Updates on a Document Using model.findOneAndUpdate()
|
|
challengeType: 2
|
|
forumTopicId: 301542
|
|
---
|
|
|
|
## Description
|
|
<section id='description'>
|
|
Recent versions of mongoose have methods to simplify documents updating. Some more advanced features (i.e. pre/post hooks, validation) behave differently with this approach, so the Classic method is still useful in many situations. <code>findByIdAndUpdate()</code> can be used when searching by Id.
|
|
</section>
|
|
|
|
## Instructions
|
|
<section id='instructions'>
|
|
Find a person by <code>Name</code> and set the person's age to 20. Use the function parameter <code>personName</code> as search key.
|
|
<strong>Note:</strong> You should return the updated document. To do that you need to pass the options document <code>{ new: true }</code> as the 3rd argument to <code>findOneAndUpdate()</code>. By default these methods return the unmodified object.
|
|
</section>
|
|
|
|
## Tests
|
|
<section id='tests'>
|
|
|
|
```yml
|
|
tests:
|
|
- text: findOneAndUpdate an item should succeed
|
|
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>
|