Deleting Data From MongoDB with Mongoose NodeJS

Question

here is my files fetching data from mongoose

router file (working)

router.get('/' , function(req ,  res , next) {
ClassModel.find({}).exec(function(err , Classes) {
if(err) throw err;
res.render('classlist', { "Classes": Classes}); 
});
});

now passing data to view (working)

<% Classes.forEach(function(Class , index){%>
<tr>
<td><%= index+1. %></td>
<td><%= Class.Class_Name %></td>
<td><%= Class.Class_ID %></td>
<td><%= Class.Class_Key %></td>
<td>
 <form action="/DeleteClass" method="post"><input type="submit" value="delete"</form>
<td></tr>
<%});%>

now this is delete.js file not working

router.delete('/', function(req, res){
ClassModel.remove({_id: req.params.id}, function(err){
if(err) res.json(err);
res.render('deleteClass');
});
});

try changing req.params.id to req.body.id

Arpit Agarwal
– Arpit Agarwal

2017-11-11 21:05:28 +00:00
Commented Nov 11, 2017 at 21:05 — Arpit Agarwal
– Arpit Agarwal, Commented Nov 11, 2017 at 21:05

El houcine bougarfaoui · Accepted Answer · 2017-11-11 21:18:51Z

2

first you have to change the request method to delete in your form and add the class id to the action route :

<form action="/DeleteClass/<%= Class._id%>" method="delete">
  <input type="submit" value="delete"> // don't forget to close input tag
</form>

after, change the route to /:id so you can access req.params.id value :

router.delete('/:id', function(req, res){
   ClassModel.remove({_id: req.params.id}, function(err){
     if(err) res.json(err);
       res.render('deleteClass');
   });
});

edited Nov 11, 2017 at 21:18

answered Nov 11, 2017 at 21:09

El houcine bougarfaoui

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1 Comment

Anis Over a year ago

this <%= Class.Class_ID %> is not that _id (object id) its like class username

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