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mongodb, get the result line after update

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[数据库(综合) 所属分类 数据库(综合) | 发布者 店小二03 | 时间 2018 | 作者 红领巾 ] 0人收藏点击收藏

I'm working with mongodb, node.js and socket.io and I'm trying to reduce the number off access to the database. I need to update a line ; and after to return the updated line this is how I do :

db.collection('users').update({_id:targetID}, {$set: { 'property': 'value' }}, {safe:true}, function(err, result) { db.collection('users').find({_id:targetID}).toArray(function(error, results){ //a socket.io resend the content }); });

It works, but I really fell like I'm having a useless step here. The callback of the update function seems to be a boolean.

BTW, is there a better documentation than this one : http://docs.mongodb.org/manual/applications/update/ ? I'd like to find a list of properties and methods. The {safe:true} for instance. It seems not working without it but I can't find it in the reference.

Maybe I'm completely wrong and this is not the way I should do it. If you have a better idea... :)

Problem courtesy of: fabien

本文数据库(综合)相关术语:系统安全软件

tags: update,function,mongodb,find,line,targetID,id,db
分页:12
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