update my database and discard an element from table - doctrine

Question

i want to delete an item from database and remove it from table
Entity product
i want to select all the products and after a click on button x i want it to update name and remove it from table
Any help ??
my twig :
<script>
$("document").ready(function () {
$(".btn-group-vertical").click(function () {
$.ajax({
type:'get',
url:'http://localhost/symfony/nouveau%20dossier/web/app_dev.php/'+$(this).val(),
beforeSend: function () {
},
success: function(data){
var x = $("produit").val(data.approuver);
console.log(x);
$("tt").find('td').fadeOut(1000,function(){
$("tt").remove();
});
}
});
});
});
</script>
{% endblock script %}
{% block body %}
<section class="content">
<div class="row">
<div class="col-xs-12">
<div class="box">
<div class="box-header">
<h3 class="box-title">Produit en attente</h3>
</div>
<!-- /.box-header -->
<div class="box-body">
<table id="example2" class="table table-bordered table-hover">
<thead>
<tr>
<th>Produit de</th>
<th>Libelle Produit</th>
<th>Quantite stock</th>
<th>etat</th>
</tr>
</thead>
<tbody>
{% for product in products %}
<tr class="tt">
<td align="center">{{ product.seller }}</td>
<td align="center">{{ product.libelle }}</td>
<td align="center">{{ product.quantiteStock }}</td>
<td><button
type="button"
class="btn btn-group-vertical btn-danger btn-xs"
id=1>Decliner</button>
<button type="button"
class="btn btn-group-vertical btn-sucess btn-xs"
id=2>Approuver</button>
</td>
</tr>
{% endfor %}
<tfoot>
<tr>
<th>Produit de</th>
<th>Libelle Produit</th>
<th>Quantite stock</th>
<th>etat</th>
</tr>
</tfoot>
</table>
</div>
<!-- /.box-body -->
</div>
<!-- /.box -->
</div>
</div>
<!-- ./wrapper -->
my controller :
public function approuverAction($id)
{
$em = $this->getDoctrine()->getEntityManager();
$produit = $em->getRepository('ProductBundle:Product')
->findOneBy(array('id'=>$id));
$produit->setApprouver('Approuver');
$respones = new JsonResponse();
return $em->merge($produit);
$em->flush();
}
Any help please

Answer 1

I want to delete an item from database and remove it from table Entity
product
To remove a product:
$em->remove($produit);
$em->flush();