Question

我正在努力用TTL方法从mongodb中删除文档。它应该在最大1.10分钟后删除文档，但永远存在。

这是我的代码：

模特：

var mongo = require('mongoose'),
Schema = mongo.Schema;

var article = new Schema({
createdAt: { type: Date, expires: '10s'},
title: {type: String},
author: {type: String},
year: {type: String},
abstract: {type: String},
article: {type: String},
score: {type: String},
category: {type: String},
link1: {type: String},
link2: {type: String}
});

module.exports = mongo.mod

该应用：

var express = require('express');
var mongoose = require('mongoose');
var bodyParser = require('body-parser');

var db = mongoose.connect('mongodb://localhost/sasapi');

var article = require('./models/article');

const port = 3000;
var app = express();

app.use(bodyParser.json());
var sasRouter = express.Router();

sasRouter.route('/articles')
  .post(function(req, res) {
var art = new article(req.body);

    art.save();
      res.send("Artikkelen \"" + art.title +"\" lagt til!");

 })
.get(function (req, res) {
    var filter = {};
    if (req.query.title){
        filter.title = req.query.title;
    }
    if(req.query.author){
        filter.author = req.query.author;
    }
     article.find(filter, function(err, articles){
     if(err){
     res.status(500).send(err);
     }else{
     if(!articles.length){
         res.send("Ingen treff på filtrering")
     }else {

         res.json(articles);
     }
     }
     });

});

Answer 1

您需要在该列上创建索引。

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<html xmlns="http://www.w3.org/1999/xhtml">
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<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta name="viewport" content="width=device-width, initial-scale=1" />

<link href="Content/bootstrap.css" rel="stylesheet" />
<title></title>
<asp:ContentPlaceHolder ID="head" runat="server">
</asp:ContentPlaceHolder>
</head>
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                        <%-- Start <row> then <col> for pages --%>
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<form id="form1" runat="server">
    <div>

        <div class="container">

            <%--  Holds the entire Grid--%>
            <div class="row">
                <%-- Row needed per columns--%>
                <div class="col-sm-12">

                </div>
            </div>
        </div>
        <asp:ContentPlaceHolder ID="ContentPlaceHolder1" runat="server">
        </asp:ContentPlaceHolder>
        <asp:ContentPlaceHolder ID="ContentPlaceHolder3" runat="server">
        </asp:ContentPlaceHolder>
    </div>
</form>
</body>
</html>

带有node.js的Mongodb TTL

1 个答案: