61 lines
1.8 KiB
JavaScript
61 lines
1.8 KiB
JavaScript
// 云函数入口文件
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const cloud = require('wx-server-sdk')
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cloud.init({ env: cloud.DYNAMIC_CURRENT_ENV })
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const db = cloud.database()
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const _ = db.command
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exports.main = async (event, context) => {
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const wxContext = cloud.getWXContext()
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const openid = wxContext.OPENID
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const { roomId, location } = event
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// location format: { lng: 116.1, lat: 39.1, address: "...", name: "..." }
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if (!roomId || !location) {
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return { success: false, msg: '缺少参数' }
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}
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try {
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// 2026-02-02 Fix: 使用 Read-Modify-Write 模式避免复杂更新操作符报错
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// 先读取房间数据
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const roomRes = await db.collection('rooms').doc(roomId).get()
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const roomData = roomRes.data
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if (!roomData) {
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return { success: false, msg: '房间不存在' }
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}
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const members = roomData.members || []
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const memberIndex = members.findIndex(m => m.openid === openid)
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if (memberIndex === -1) {
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return { success: false, msg: '您尚未加入该房间' }
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}
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// 直接修改内存中的数组对象
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members[memberIndex].location = location
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// 2026-02-02 Fix: 使用 _.set 强制覆写 members 字段，解决 DuplicateWrite 索引冲突问题
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// 这通常是因为数据结构不一致或底层索引冲突导致的，set 指令会完全替换字段值
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await db.collection('rooms').doc(roomId).update({
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data: {
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members: _.set(members)
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}
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})
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return {
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success: true,
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msg: '位置更新成功'
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}
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} catch (err) {
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console.error(err)
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return {
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success: false,
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msg: '位置更新失败',
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error: err
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}
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}
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}
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