57 lines
1.7 KiB
Markdown
57 lines
1.7 KiB
Markdown
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---
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id: 587d7fb6367417b2b2512c09
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title: 創建並保存一條 Model 記錄
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challengeType: 2
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forumTopicId: 301536
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dashedName: create-and-save-a-record-of-a-model
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---
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# --description--
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在這個挑戰中，你需要創建並保存一條模型數據。
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# --instructions--
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在 `createAndSavePerson` 函數中，用我們在上一個挑戰中寫好的 `Person` 構造函數創建 document 實例， 將包含 `name`、`age` 和 `favoriteFoods` 的對象傳給構造函數， 這些屬性的數據類型必須符合我們在 `personSchema` 中定義的類型。 然後在返回的 document 實例上調用方法 `document.save()`。 同時，按 Node.js 的方式爲它傳一個回調函數。 這是一種常見模式，以下所有CRUD方法都將這樣的回調函數作爲最後一個參數。
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```js
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/* Example */
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// ...
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person.save(function(err, data) {
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// ...do your stuff here...
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});
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```
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# --hints--
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應成功地創建數據並保存一條數據到數據庫
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```js
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(getUserInput) =>
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$.get(getUserInput('url') + '/_api/create-and-save-person').then(
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(data) => {
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assert.isString(data.name, '"item.name" should be a String');
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assert.isNumber(data.age, '28', '"item.age" should be a Number');
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assert.isArray(
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data.favoriteFoods,
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'"item.favoriteFoods" should be an Array'
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);
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assert.equal(data.__v, 0, 'The db item should be not previously edited');
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},
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(xhr) => {
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throw new Error(xhr.responseText);
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}
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);
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```
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# --solutions--
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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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