62 lines
1.7 KiB
Markdown
62 lines
1.7 KiB
Markdown
---
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id: 587d7fb8367417b2b2512c11
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title: Delete Many Documents with model.remove()
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challengeType: 2
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forumTopicId: 301538
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---
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## Description
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<section id='description'>
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`Model.remove()` is useful to delete all the documents matching given criteria.
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</section>
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## Instructions
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<section id='instructions'>
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Modify the `removeManyPeople` function to delete all the people whose name is within the variable `nameToRemove`, using `Model.remove()`. Pass it to a query document with the `name` field set, and a callback.
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**Note:** The `Model.remove()` doesn’t return the deleted document, but a JSON object containing the outcome of the operation, and the number of items affected. Don’t forget to pass it to the `done()` callback, since we use it in tests.
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</section>
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## Tests
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<section id='tests'>
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```yml
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tests:
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- text: Deleting many items at once should succeed
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testString: |
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getUserInput => $.ajax({url: getUserInput('url') + '/_api/remove-many-people', type: 'POST', contentType:'application/json', data: JSON.stringify([{name: 'Mary', age: 16, favoriteFoods: ['lollipop']}, {name: 'Mary', age: 21, favoriteFoods: ['steak']}])}).then(data => {
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assert.isTrue(!!data.ok, 'The mongo stats are not what expected');
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assert.equal(data.n, 2, 'The number of items affected is not what expected');
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assert.equal(data.count, 0, 'the db items count is not what expected');
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}, xhr => { throw new Error(xhr.responseText); })
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```
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</section>
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## Challenge Seed
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<section id='challengeSeed'>
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</section>
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## Solution
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<section id='solution'>
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```js
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/**
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Backend challenges don't need solutions,
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because they would need to be tested against a full working project.
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Please check our contributing guidelines to learn more.
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*/
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```
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</section>
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