How to recover data from database using symfony2 - symfony

Question

i need to display information of a product from my database but i have an
error: Controller
"UserBundle\Controller\DefaultController::profileAction()" requires
that you provide a value for the "$id" argument (because there is no
default value or because there is a non optional argument after this
one).
This is the profileAction:
public function profileAction($id)
{
$product = $this->getDoctrine()
->getRepository('UserBundle:Product')
->find($id);
if (!$product) {
throw $this->createNotFoundException(
'No product found for id '.$id
);
}
return $this->render('UserBundle:Default:profile.html.twig', array('product' =>$product));
}
please someone help me.

Answer 1

You need to provide $id as argument.
Change the return to something like that:
return $this->render('UserBundle:Default:profile.html.twig', ['product' => $product, 'id' => $id]);

Answer 2

You need a route like that :
_my_route:
path: /my_path/{id}
defaults: {controller: AcmeBundle:Default:profile}
requirements:
id: \d+
Action in your controller :
public function profileAction($id)
{
$product = $this->getDoctrine()
->getRepository('UserBundle:Product')
->find($id);
if (!$product) {
throw $this->createNotFoundException(
'No product found for id '.$id
);
}
return $this->render('UserBundle:Default:profile.html.twig', array('product' =>$product));
And a link or something else in your view like that (Hope you use Twig):
Lorem ipsum
It should be work.
EDIT :
For you search feature, i will do a route like that
_profile:
path: /profile
defaults: {_controller:AcmeBundle:Default:profile}
Controller :
public function profileAction(Request $request){
$form = $this->createForm(new SearchType());
$products = null ;
if($request->isMethod('POST')){
$form->handleRequest($request);
$value = ($form['search']->getData());// change de 'search' according to your form
$em = $this->getDoctrine()->getManager() ;
$product = $em->getRepository('UserBundle:Product')->find($value) ;
}
if(!$product) throw $this->createNotFoundException('your message');
return $this->render('UserBundle:Default:profile.html.twig',array(
'product' => $product
));
}
And finally, your form in the view :
<form method="POST" action="{{ path('_profile') }}">
//your code
</form>

Answer 3

Well i think that here $id become null and it causes error because $id is used to fetch data from your db, so set default value for $id check $id will never become null or empty. All the best.