// 云函数入口函数

exports.main = async (event, context) => {

let type = event.type

let openId = event.userInfo.openId

let { data } = await db.collection('posts').where({ _openid: openId }).orderBy('_id', 'desc').get()

let promiseArr = data.map(item => db.collection('users').where({ _openid: item._openid }).limit(0).get())

let res = await Promise.all(promiseArr)

for (let i = 0; i < res.length; i++) {

data[i].userInfo = res[i].data[0].userInfo

}

return { data }

}

// 返回值如下

{

errMsg: "cloud.callFunction:ok",

result: {

    errorCode: 200,

   errorMessage:

1. "{"data":[{"_id":"W8RBVJ25dhqgLEN9","_openid":"oMoT64r-dhGxPUUghCP0uXD9Nmgw","content":[{"type":1,"value":"阿斯蒂芬"},{"type":2,"value":["cloud://test-85938f.c341-test-85938f/post/80a37f7b-ac51-4472-81e9-37ac187b0921.jpg","cloud://test-85938f.c341-test-85938f/post/0f605f0c-6056-4f17-b310-0af8f87f5ecc.jpg"]}],"createdAt":{"$date":1539588436891},"title":"发帖，测试时间","views":12,"userInfo":{"avatarUrl":"https://wx.qlogo.cn/mmopen/vi_32/dxyAhb1HVjwN8gwBFSauvFbqF0cVJV0Vtw32CZHXDUfrQkYD6lFp5GibnoicBEscDRp3ia4JEicpdT1f0dsicdTUtQQ/132","city":"Shenzhen","country":"China","gender":1,"language":"zh_CN","nickName":"友友✨","province":"Guangdong"}},{"_id":"W8BxqJ25dhqgIjxO","_openid":"oMoT64r-dhGxPUUghCP0uXD9Nmgw","content":[{"type":2,"value":["cloud://test-85938f.c341-test-85938f/post/8adc90f6-b66a-4071-86c4-6f7ffc51923b.jpg","cloud://test-85938f.c341-test-85938f/post/4172b680-3ed3-458a-816f-7af344051dd9.jpg"]}],"createdAt":{"$date":1539338664702},"title":"人生得意须尽欢，莫使金樽空对月","views":13,"userInfo":{"avatarUrl":"https://wx.qlogo.cn/mmopen/vi_32/dxyAhb1HVjwN8gwBFSauvFbqF0cVJV0Vtw32CZHXDUfrQkYD6lFp5GibnoicBEscDRp3ia4JEicpdT1f0dsicdTUtQQ/132","city":"Shenzhen","country":"China","gender":1,"language":"zh_CN","nickName":"友友✨","province":"Guangdong"}},{"_id":"W8BfQd2AWotkcqHJ","_openid":"oMoT64r-dhGxPUUghCP0uXD9Nmgw","content":[{"type":2,"value":["cloud://test-85938f.c341-test-85938f/post/0a8435d6-ef3c-48ab-b182-bc32f275da53.jpg","cloud://test-85938f.c341-test-85938f/post/f0da453b-fa73-49b5-bcea-2b46c5a069ca.jpg"]},{"type":1,"value":"明李贽《朋友篇》：“去华（潘去华）友朋之义最笃，故是《纂》（指《闇然堂类纂》）首纂笃友谊。” 清昭梿《啸亭杂录·顾总河》：“﹝顾琮﹞果于友谊，公之督河时，前督完颜伟病于署中，家属已先行，公为之守护汤药，旬日无倦。”邹韬奋《友谊与职权》：“友谊是天地间最宝贵的东西，深挚的友谊是人生"},{"type":2,"value":["cloud://test-85938f.c341-test-85938f/post/e4308ae5-955e-4979-9e70-4ab0c4918b33.jpg"]},{"type":1,"value":"廉颇闻之，肉袒负荆，因宾客至蔺相如门谢罪。曰：“鄙贱之人，不知将军宽之至此也。”卒相与欢，为刎颈之交。"}],"createdAt":{"$date":1539333951629},"title":"友谊以亲密为核心成分，亲密性也就称为衡量友谊程度的一个重要指标，亲密度达到一定程度后即使这份友谊因事淡化，这份美好的记忆也会终生珍藏在“永恒的”回忆中，当再次重逢时它也会由怀旧中寻回，这种情感才能被称为“永恒的”友谊。\n罗杰斯(Rogers，1985)对这种亲密性作了三点概括：\n","views":7,"userInfo":{"avatarUrl":"https://wx.qlogo.cn/mmopen/vi_32/dxyAhb1HVjwN8gwBFSauvFbqF0cVJV0Vtw32CZHXDUfrQkYD6lFp5GibnoicBEscDRp3ia4JEicpdT1f0dsicdTUtQQ/132","city":"Shenzhen","country":"China","gender":1,"language":"zh_CN","nickName":"友友✨","province":"Guangdong"}},{"_id":"W8AUQZ25dhqgIUJK","_openid":"oMoT64r-dhGxPUUghCP0uXD9Nmgw","content":[{"type":2,"value":["cloud://test-85938f.c341-test-85938f/post/bca33b00-2bef-4ff6-9daa-523c009419f6.jpg"]},{"type":1,"value":"😀😁😂😄😅😃😇"}],"createdAt":{"$date":1539314753775},"title":"美女哈哈哈哈","views":1,"userInfo":{"avatarUrl":"https://wx.qlogo.cn/mmopen/vi_32/dxyAhb1HVjwN8gwBFSauvFbqF0cVJV0Vtw32CZHXDUfrQkYD6lFp5GibnoicBEscDRp3ia4JEicpdT1f0dsicdTUtQQ/132","city":"Shenzhen","country":"China","gender":1,"language":"zh_CN","nickName":"友友✨","province":"Guangdong"}},{"_id":"W8ATXp25dhqgIUAU","_openid":"oMoT64r-dhGxPUUghCP0uXD9Nmgw","content":[{"type":1,"value":"跑啊跑"},{"type":2,"value":["cloud://test-85938f.c341-test-85938f/post/28fb55c1-2765-4277-9c90-2b9384c168ad.jpg"]},{"type":1,"value":"开车去浪"},{"type":2,"value":["cloud://test-85938f.c341-test-85938f/post/82eb3c8a-6354-4a23-bd83-2f0951c7583f.jpg","cloud://test-85938f.c341-test-85938f/post/5cac40a0-3c7d-4cda-8206-7495bece4381.jpg"]},{"type":1,"value":"哈哈啊哈哈哈"}],"createdAt":{"$date":1539314526799},"title":"撸啊撸","views":1,"userInfo":{"avatarUrl":"https://wx.qlogo.cn/mmopen/vi_32/dxyAhb1HVjwN8gwBFSauvFbqF0cVJV0Vtw32CZHXDUfrQkYD6lFp5GibnoicBEscDRp3ia4JEicpdT1f0dsicdTUtQQ/132","city":"Shenzhen","country":"China","gender":1,"language":"zh_CN","nickName":"友友✨","province":"Guangdong"}},{"_id":"W78dhd2AWotkcAvM","_openid":"oMoT64r-dhGxPUUghCP0uXD9Nmgw","content":[{"type":1,"value":"啊手动阀手动阀"},{"type":2,"value":["cloud://test-85938f.c341-test-85938f/post/24d4de2a-d8b3-424f-9036-19898c1b6956.jpg","cloud://test-85938f.c341-test-85938f/post/f1b7dfc6-5f83-4a58-82d5-f606af593369.png","cloud://test-85938f.c341-test-85938f/post/f818ac1f-a1e1-4947-8da8-53bb470ec1eb.jpg"]}],"createdAt":{"$date":1539251587635},"title":"我的帖子","views":1,"userInfo":{"avatarUrl":"https://wx.qlogo.cn/mmopen/vi_32/dxyAhb1HVjwN8gwBFSauvFbqF0cVJV0Vtw32CZHXDUfrQkYD6lFp5GibnoicBEscDRp3ia4JEicpdT1f0dsicdTUtQQ/132","city":"Shenzhen","country":"China","gender":1,"language":"zh_CN","nickName":"友友✨","province":"Guangdong"}},{"_id":"W78WSd2AWotkb_oA","_openid":"oMoT64r-dhGxPUUghCP0uXD9Nmgw","content":[{"type":1,"value":"sdf"},{"type":2,"value":["cloud://test-85938f.c341-test-85938f/post/523bbd25-878e-47eb-9b00-a580916ef141.jpg","cloud://test-85938f.c341-test-85938f/post/b7a78de5-9883-4fd6-b9c8-4d210ff113fe.jpg"]},{"type":1,"value":"asdfsssssssssssssss"},{"type":2,"value":["cloud://test-85938f.c341-test-85938f/post/8cfe9457-b3b7-4f9d-ac7f-e52cf81bc1b2.jpg","cloud://test-85938f.c341-test-85938f/post/edbdcbf9-ada5-4054-83d1-1861b4ed82a9.jpg"]}],"createdAt":{"$date":1539294803000},"title":"xin","userInfo":{"avatarUrl":"https://wx.qlogo.cn/mmopen/vi_32/dxyAhb1HVjwN8gwBFSauvFbqF0cVJV0Vtw32CZHXDUfrQkYD6lFp5GibnoicBEscDRp3ia4JEicpdT1f0dsicdTUtQQ/132","city":"Shenzhen","country":"China","gender":1,"language":"zh_CN","nickName":"友友✨","province":"Guangdong"}}]}"

}

}