Set input field value with data from mongoose - node.js

Question

Hi,
I'm trying to get value from mongoose and populate textbox with it. So basically when I click Edit button I would like the name of the department appear in Department name textbox. I tried multiple things but failed. ($('#departmentName').val(department.name) for example) How can I do it properly? Thank you.
my department handlebar
<h2>Departments List</h2>
<div class="row">
<div class="col-lg-12">
<table class="table">
<thead>
<tr>
<th>Name</th>
<th>Action</th>
</tr>
</thead>
<tbody>
<tr>
<form method="POST" action="/departments/create_department">
<td><input class="form-control" type="text" placeholder="Department Name" name="departmentName" id="departmentName"></td>
<td><button class="btn btn-primary" type="sumit">Add Department</button></td>
</form>
<td><button class="btn btn-info">Update</button></td>
<td><button class="btn btn-info">Clear</button></td>
</tr>
{{#each departments}}
<tr>
<form method="POST" action="/departments/remove_department/{{_id}}?_method=DELETE">
<td>{{name}}</td>
<td><button class="btn btn-danger" type="submit">Remove</button></td>
</form>
<form method="GET" action="/departments/edit_department/{{_id}}?">
<td><button class="btn btn-warning" value={{id}} type="submit">Edit</button></td>
</form>
</tr>
{{/each}}
</tbody>
</table>
</div>
</div>
my department controller
var express = require('express');
var router = express.Router();
var passport = require('passport');
var mongoose = require('mongoose');
var Departments = require('../models/department');
var User = require('../models/user');
// List of departments
router.get('/add_department', userAuthenticated, function(req, res, next) {
Departments.find(function(err, departments) {
if (err) {
throw err;
}
res.render('add_department', {title:'Add New Department', departments: departments, name: departments.name, id: departments._id})
})
});
// Edit department
router.get('/edit_department/:id', userAuthenticated, function(req, res, next) {
var departmentName = "";
Departments.findById(req.params.id).exec(function(err, department) {
if (err) {
throw err;
} else {
$('#departmentName').val(department.name);
res.redirect('/departments/add_department');
}
})
});

Answer 1

You could try changing the input field in handlebars to display the value you queried from mongoose
change this
<td><input class="form-control" type="text" placeholder="Department Name" name="departmentName" id="departmentName"></td>
to this
<td><input class="form-control" type="text" value={{name}} name="departmentName" id="departmentName"></td>
Then take this out of the routes
$('#departmentName').val(department.name);
UPDATE:
So something like this
// List of departments
router.get('/add_department', userAuthenticated, function(req, res, next) {
// grab the deparment from the req
var departmentFromEdit ="";
if(req.query.dn){
departmentFromEdit = req.query.dn;
}
Departments.find(function(err, departments) {
if (err) {
throw err;
}
res.render('add_department', {title:'Add New Department', departments: departments, name: departments.name, id: departments._id})
})});
// Edit department
router.get('/edit_department/:id', userAuthenticated, function(req, res, next) {
var departmentName = "";
Departments.findById(req.params.id).exec(function(err, department) {
if (err) {
throw err;
} else {
departmentName = encodeURI(department.name);
// dn for departmentName or defaultName
res.redirect('/departments/add_department?dn=' + departmentName);
}
})});