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										 |  |  |  | title: 使用 model.find() 查询数据库 | 
					
						
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										 |  |  |  | challengeType: 2 | 
					
						
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										 |  |  |  | forumTopicId: 301543 | 
					
						
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										 |  |  |  | dashedName: use-model-find-to-search-your-database | 
					
						
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										 |  |  |  | # --description--
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										 |  |  |  | 我们尝试一种最简单的用法,`Model.find()` 接收一个查询 document(一个 JSON 对象)作为第一个参数,一个回调函数作为第二个参数, 它会返回由匹配到的数据组成的数组。 这个方法支持很多搜索选项, 详情请参阅文档。 | 
					
						
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										 |  |  |  | # --instructions--
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										 |  |  |  | 修改 `findPeopleByName` 函数使用 <code>Model.find() -\> [Person]</code> 查询所有给定名字的人。 | 
					
						
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										 |  |  |  | 请使用函数参数中的 `personName` 作为搜索条件。 | 
					
						
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										 |  |  |  | # --hints--
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										 |  |  |  | 应成功地找到所有符合条件的数据 | 
					
						
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							|  |  |  |  | ```js | 
					
						
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										 |  |  |  | (getUserInput) => | 
					
						
							|  |  |  |  |   $.post(getUserInput('url') + '/_api/find-all-by-name', { | 
					
						
							|  |  |  |  |     name: 'r@nd0mN4m3', | 
					
						
							|  |  |  |  |     age: 24, | 
					
						
							|  |  |  |  |     favoriteFoods: ['pizza'] | 
					
						
							|  |  |  |  |   }).then( | 
					
						
							|  |  |  |  |     (data) => { | 
					
						
							|  |  |  |  |       assert.isArray(data, 'the response should be an Array'); | 
					
						
							|  |  |  |  |       assert.equal( | 
					
						
							|  |  |  |  |         data[0].name, | 
					
						
							|  |  |  |  |         'r@nd0mN4m3', | 
					
						
							|  |  |  |  |         'item.name is not what expected' | 
					
						
							|  |  |  |  |       ); | 
					
						
							|  |  |  |  |       assert.equal(data[0].__v, 0, 'The item should be not previously edited'); | 
					
						
							|  |  |  |  |     }, | 
					
						
							|  |  |  |  |     (xhr) => { | 
					
						
							|  |  |  |  |       throw new Error(xhr.responseText); | 
					
						
							|  |  |  |  |     } | 
					
						
							|  |  |  |  |   ); | 
					
						
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										 |  |  |  | ``` | 
					
						
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										 |  |  |  | # --solutions--
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										 |  |  |  | ```js | 
					
						
							|  |  |  |  | /** | 
					
						
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										 |  |  |  |   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. | 
					
						
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										 |  |  |  | */ | 
					
						
							|  |  |  |  | ``` |