50 lines
1.3 KiB
JavaScript
50 lines
1.3 KiB
JavaScript
'use strict';
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exports.main = async (event, context) => {
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/**
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* 根据搜索记录,设定时间间隔来归纳出热搜数据并存储在热搜表中
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*/
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const SEARCHHOT = 'opendb-search-hot'; // 热搜数据库名称
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const SEARCHLOG = 'opendb-search-log'; // 搜索记录数据库名称
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const SEARCHLOG_timeZone = 604800000; // 归纳搜索记录时间间隔，毫秒数，默认为最近7天
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const SEARCHHOT_size = 10; // 热搜条数
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const DB = uniCloud.database();
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const DBCmd = DB.command;
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const $ = DB.command.aggregate;
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const SEARCHHOT_db = DB.collection(SEARCHHOT);
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const SEARCHLOG_db = DB.collection(SEARCHLOG);
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const timeEnd = Date.now() - SEARCHLOG_timeZone;
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let {
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data: searchHotData
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} = await SEARCHLOG_db
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.aggregate()
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.match({
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create_date: DBCmd.gt(timeEnd)
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})
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.group({
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_id: {
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'content': '$content',
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},
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count: $.sum(1)
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})
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.replaceRoot({
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newRoot: $.mergeObjects(['$_id', '$$ROOT'])
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})
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.project({
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_id: false
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})
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.sort({
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count: -1
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})
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.end();
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let now = Date.now();
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searchHotData.map(item => {
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item.create_date = now;
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return item;
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}).slice(0, SEARCHHOT_size);
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// searchHotData = searchHotData.sort((a, b) => b.count - a.count).slice(0, SEARCHHOT_size);
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return searchHotData.length ? await SEARCHHOT_db.add(searchHotData) : ''
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};
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