Laf 开发文档云数据库快速入门
本文通过 3 分钟，快速介绍如何操作云数据库。
本节目录
获取数据库实例
typescript
import cloud from '@lafjs/cloud'
const db = cloud.mongo.db1
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插入文档
typescript
import cloud from '@lafjs/cloud'
const db = cloud.mongo.db
export default async function () {
const ret = await db.collection('users').insertOne({
name: '王小波',
age: 44,
books: ['黄金时代', '白银时代', '青铜时代']
})
console.log(ret)
}1
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查看输出
js
{
acknowledged: true,
insertedId: new ObjectId("65797a86f313010ca6017f6f")
}1
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查询文档
typescript
import cloud from '@lafjs/cloud'
const db = cloud.mongo.db
export default async function () {
const doc = await db.collection('users').findOne({
name: '王小波'
})
console.log(doc)
}1
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查看输出
js
{
_id: new ObjectId("65797a86f313010ca6017f6f"),
name: '王小波',
age: 44,
books: [ '黄金时代', '白银时代', '青铜时代' ]
}1
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更新文档
typescript
import cloud from '@lafjs/cloud'
const db = cloud.mongo.db
export default async function () {
const ret = await db.collection('users').updateOne({
name: '王小波'
}, {
$set: {
age: 1000
}
})
console.log(ret)
}1
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查看输出
js
{
acknowledged: true,
modifiedCount: 1,
upsertedId: null,
upsertedCount: 0,
matchedCount: 1
}1
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删除文档
typescript
import cloud from '@lafjs/cloud'
const db = cloud.mongo.db
export default async function () {
const ret = await db.collection('users').deleteOne({
name: '张小柱'
})
console.log(ret)
}1
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查看输出
js
{
acknowledged: true,
deletedCount: 0 // 由于没有找到张小柱，所以删除数量为 0
}1
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