如何在Node.js中删除特定行并表达

Question

How can I delete data from a list in Node.js, using express and ejs view? I have tried, but it's not working. I am using mongodb .

Here is what I have done so far but it's not working.

router.post('/delete', function(req, res, next) {
  var id = req.body.id;

  mongodb.connect(url, function(err, db) {
    assert.equal(null, err);

    db.collection('profile').deleteOne({ "_id": objectId(id) }, function(err, result) {
      console.log('Item deleted');
      db.close();
    });
  });

  res.redirect('/userlist');
});

and ejs (view) code is:

<td><a href="/userlist/delete">Delete</a></td>

below code is works but when I press Delete , it deletes all the row. Here I used get intead of post

router.get('/delete', function(req, res, next) {

  mongodb.connect(url, function(err, db) {
    assert.equal(null, err);

    db.collection('profile').deleteOne(function(err, result) {
      console.log('Item deleted');
      db.close();
    });
  });

  res.redirect('/userlist');
});

Answer 1

If you want to use a get request, it can be done like this:

router.get('/delete/:id', function(req, res, next) {
  var id = req.params.id;

  mongodb.connect(url, function(err, db) {
    assert.equal(null, err);

    db.collection('profile').deleteOne({ "_id": objectId(id) }, function(err, result) {
      console.log('Item deleted');
      db.close();
    });
  });

  res.redirect('/userlist');
});

Now you need to request something like this:

<td><a href="/userlist/delete/some-id">Delete</a></td>