Question

如何更新mongodb中的数组

Answer 1

官方参考：
http://docs.mongodb.org/manual/reference/operator/update/positional/#up._S_
提供参考代码：
exports.updateReply1Async = function (opts) {
var results = {error_code: -1, error_msg: "error"};
var suggestID = helper.toObjectID(opts.doc.suggestID);
var filter = {_id: suggestID,"replies.rid":opts.doc.rid};
var update = {$set: {"replies.$.replycontent": opts.doc.replynewcontent,"replies.$.reply_at":new Date()}};
return opts.dbs.csdb.collection("suggests").findOneAndUpdateAsync(filter, update, {upsert: false})
.timeout(opts.configs.timeoutnormal)
.then(function (value) {
。。。

});

};