使用req.body通过Mongoose更新和/或添加数组元素属性?

我有以下文件:

{ "_id" : ObjectId("503b83dfad79cc8d26000004"), "pdfs" : [ { "title" : "Test document", "pdf_id" : ObjectId("504f6793ce351a595d000004"), "created_at" : ISODate("2012-09-11T16:32:19.276Z") }, { "title" : "Some other doc", "pdf_id" : ObjectId("502bf124b4642341230003f0"), "created_at" : ISODate("2012-09-11T11:34:19.276Z") } ] } 

现在通过req.body传入表单,我有2个字段: titledescription

我想更新title并为指定的pdf_id插入description ,我该怎么做?

所以最后,我的文档现在看起来像:

 { "_id" : ObjectId("503b83dfad79cc8d26000004"), "pdfs" : [ { "title" : "This is an UPDATED title", "description" : "It has an ALL NEW description", "pdf_id" : ObjectId("504f6793ce351a595d000004"), "created_at" : ISODate("2012-09-11T16:32:19.276Z") }, { "title" : "Some other doc", "pdf_id" : ObjectId("502bf124b4642341230003f0"), "created_at" : ISODate("2012-09-11T11:34:19.276Z") } ] } 

只是要清楚,我只是在寻找Mongoose update语法。

       

网上收集的解决方案 "使用req.body通过Mongoose更新和/或添加数组元素属性?"