Delete a row from the database via ajax - ajax

Question

I have this javascript function to delete the row but the function is not working
$(document).ready(function()
{
$('table#example td a.delete').click(function()
{
if (confirm("Are you sure you want to delete this row?"))
{
var id = $(this).parent().parent().attr('id');
var data = 'id=' + id ;
var parent = $(this).parent().parent();
$.ajax(
{
type: "POST",
url: "supprimerkpi",
data: data,
cache: false,
success: function()
{
parent.fadeOut('slow', function() {$(this).remove();});
// sets specified color for every odd row
$('table#example tr:odd').css('background',' #FFFFFF');
}
});
}
});
and in my page html:
<a href="#" class="delete" style="color:#FF0000;">
in my controller
$repository = $this->getDoctrine()->getEntityManager()->getRepository('AdminBlogBundle:Condkpi'); $id=$this->getRequest()->query->get('id');
$em = $this->getDoctrine()->getEntityManager();
$uti=$repository->findOneBy(array('id' => $id));
$em->remove($uti);
$em->flush();

Answer 1

You are sending the "id" via POST method. So, you need to change:
$id=$this->getRequest()->query->get('id');
into:
$id=$this->getRequest()->request->get('id');
Also, you could change:
$uti=$repository->findOneBy(array('id' => $id));
into:
$uti=$repository->find($id);
.. as find() searches entity using the primary key...
On a side note, what is "supprimerkpi"? That can't be a valid destination URL, right? :)

Answer 2

In your routing.yml
delete_data:
path: /delete
defaults: { _controller: AcmeDemoBundle:Default:delete}
in your ajax call url parameter change that according to this
var id = $(this).parent().parent().attr('id');
var data = 'id=' + id ;
var parent = $(this).parent().parent();
$.ajax(
{
type: "POST",
url: "{{ path('delete_data') }}",
data: {id :id },
cache: false,
success: function()
{
parent.fadeOut('slow', function() {$(this).remove();});
// sets specified color for every odd row
$('table#example tr:odd').css('background',' #FFFFFF');
}
});
in your AcmeDemoBundle/Controller/DeafultControlller.php
public function deleteAction(Request $request)
{
$id = $request->get('id');
$repository =
$this->getDoctrine()->getEntityManager()->getRepository('AdminBlogBundle:Condkpi');
$em = $this->getDoctrine()->getEntityManager();
$uti=$repository->findOneById($id);
$em->remove($uti);
$em->flush();
}