how to fetch data from mongodb and display it in a table using node js?

Question

I'm having trouble figuring out how can I retrieve data in mongodb and fetch it in an html/ejs file. in html/ejs file there is one button where if the user click it, it will display all data in database collection mongodb.

I found some questions similar to my question but it doesn't answer my question. I am still new at node js and mongodb so I don't really have an Idea on how can I achieve my goal.

this is my index.js

var express = require("express");

var app = express();
app.set('view engine', 'ejs')
//var hostname = '127.0.0.1';
var port = 3000;
var mongoose = require("mongoose");
app.set('view engine','jade');
mongoose.Promise = global.Promise;
mongoose.connect("mongodb://localhost:27017/commuters", {useNewUrlParser: true});

app.use('/gui', express.static('gui'));
//use to link static file in the folder named public
var nameSchema = new mongoose.Schema({
    route : String,
      origin : String,
      destination : String,
      estimatedTimeOfArrival : String,
      date : String,
      time : String
  },
  {
      collection : 'boardingAlight'
  });
  //collection is the name of collection that you created in the same database name above
  var User = mongoose.model("User", nameSchema);

 var bodyParser = require('body-parser');
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: true, useNewUrlParser : true }));

app.use("/", (req, res) => {
    res.sendFile(__dirname + "/gui/index.html");
  });
//FOR PORT CONNECTION
//localhost:3000
app.listen(port, () => {
  console.log("Server listening on port " + port);
});

once I created ejs file with a button, I need to display the all the data in a table. Thank you!

YouBee · Accepted Answer · 2019-05-20 09:43:31Z

6

Try the following code:

app.js

var express = require("express"),
app = express(),
bodyparser = require("body-parser"),
mongoose = require("mongoose");
mongoose.connect("mongodb://localhost:27017/commuters", {useNewUrlParser: true});

app.use(bodyparser.urlencoded({ extended: true }));
app.set("view engine", "ejs");

var schema = new mongoose.Schema({
  route : String,
  origin : String,
  destination : String,
  estimatedTimeOfArrival : String,
  date : String,
  time : String
}) 
var detailsModel = mongoose.model("detailsModel", schema);
app.get("/", function (req, res) {
res.render("index",{ details: null })
})
app.get("/getdetails", function (req, res) {   
detailsModel.find({}, function (err, allDetails) {
    if (err) {
        console.log(err);
    } else {
        res.render("index", { details: allDetails })
    }
})
})
app.listen(3000, "localhost", function () {
console.log("server has started");
})

index.ejs

<div>
<a href="/getdetails">Get Details</a>
</div>
<hr>

<% if(details!=null) { %>
<table>
<tr>
    <th>Route</th>
    <th>origin </th>
    <th>Destination</th>
    <th>EstimatedTimeOfArrival </th>
    <th>Date </th>
    <th>Time</th>
</tr>
<% details.forEach(function(item){ %>
<tr>
    <td><%= item.route%></td>
    <td><%= item.origin %></td>
    <td><%= item.destination%></td>
    <td><%= item.estimatedTimeOfArrival %></td>
    <td><%= item.date%></td>
    <td><%= item.time%></td>

</tr>
<% }) %>
</table>
<% } %>

edited May 20, 2019 at 9:43

answered May 20, 2019 at 9:33

YouBee

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2 Comments

indefinite Over a year ago

Thank you for this, but I run the code and I don't seem to be getting any data from my mongo database. after clicking get details it only displayed the heading which is Route origin Destination EstimatedTimeOfArrival Date Time

indefinite Over a year ago

oh sory It was my mistake, I typed colletion in my schema instead of collection that's its not working. I just have one more question, is there a way to filter the output based on time or date? thanks again!

Faiz Khan · Accepted Answer · 2019-05-20 09:31:51Z

1

If you want to retrieve data from db and want to send it to ejs then you can do it like this:

 app.get('/',(req,res,next) =>{
   //Here fetch data using mongoose query like
   User.find({}, function(err, users) {
   if (err) throw err;
   // object of all the users
   res.render('index',{users:users});
 });

On ejs file:

 <!DOCTYPE html>
 <html>
 <head>
   <title>Welcome to my blog</title>
 </head>
 <body>
   <h1>Users</h1>
   <p><%=users %></p>
</body>
</html>

What you send in object in res.render will be available on your index.ejs file to use.Now you can display data as you want

edited May 20, 2019 at 9:31

answered May 20, 2019 at 9:26

Faiz Khan

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