uniCloud传统方式调用数据库-基本操作

1.后台云函数

todo/index.js

?

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32

'use strict'; // 查询所有 const queryAll =(collection,params)=>{     return collection.get() } // 新增 const add = (collection,data)=>{     return collection.add(data) } // 删除 const del = (collection,params)=>{     return collection.doc(params.id).remove() } // 更新 const update = (collection,params)=>{     return collection.doc(params.id).update({name:params.name}) }   const handlerObj = {     get: queryAll,     post:add,     del,     update } exports.main = async (event, context) => {     //event为客户端上传的参数     console.log('event : ', event)     const db = uniCloud.database();     // 获取 `user` 集合的引用     const collection = db.collection('todo');     return  handlerObj[event.method](collection,event.params) };

　　1. 前端uniapp调用

?

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43

submit(){     if(!this.formData.name){         return 0;     }     uniCloud.callFunction({         name: 'todo',         data: {method:"post",params:{name:this.formData.name}}     }).then((res) => {         this.queryAll()     }).catch((err) => {         console.error(err)     }) }, del(id){     uniCloud.callFunction({         name: 'todo',         data: {method:"del",params:{id}}     }).then((res) => {         this.queryAll()     }).catch((err) => {         console.error(err)     }) }, update(item){     uniCloud.callFunction({         name: 'todo',         data: {method:"update",params:{id:item._id,name:item.name + '-' }}     }).then((res) => {         this.queryAll()     }).catch((err) => {         console.error(err)     }) }, queryAll(){     uniCloud.callFunction({         name: 'todo',         data: {method:"get",params:{}}     }).then((res) => {         this.todoList = res.result.data || []     }).catch((err) => {         console.error(err)     }) }