How can I output the Cart item number? - php

Question

i was wondering of how can i show how many items i got in the cart? I did a path in the twig but im not sure how to show it.
this is my controller i have the route and in the twig i call the path with the name (count_panier).
/**
* #Route("/count/{qtt}", name="count_panier")
*/
public function testAction($qtt,Request $req)
{
$qtt = $this->afficherCount($req);
return $this->redirectToRoute('mag',['count'=>$qtt]);
}
//----------------------------------------------
public function afficherCount(Request $req){
$sess = $req->getSession();
$panier = $sess->get('panier',[]);
$qtt = 0;
foreach($panier as $item)
{
$qtt += $item->quantiteCommandee;
}
return $qtt;
}
And this is my twig, this is the part of the top navbar
<div class="menu">
<a class="active" href="{{path('mag')}}">Catalogue</a>
Contact
Crée un compte
Connexion
<a href="panier">Panier
<img width="30" alt="img" src="{{asset('images/cart.png')}}"/></a>
<span id='panierCompteur'>
items</span>
</div>

Answer 1

in your Controller you are passing just one parametere count => '$qtt
So in the Twig file, if you want get it, do this:
{{ count }}
So if you want to get a link that shows how many items you have, do like this:
<span id='panierCompteur'>
{{count}}
items</span>
(you are not usign the $qtt variable so don't pass it)
/**
* #Route("/count", name="count_panier")
*/
public function testAction(Request $req)
{
$qtt = $this->afficherCount($req);
return $this->redirectToRoute('mag',['count'=>$qtt]);
}
//----------------------------------------------
private function afficherCount(Request $req){
$sess = $req->getSession();
$panier = $sess->get('panier',[]);
$qtt = 0;
foreach($panier as $item)
{
$qtt += $item->quantiteCommandee;
}
return $qtt;
}
Of course the first time you render this main page you need to run the function afficherCount() in the index Controller (or whatever is your main controller) and return to the main page the count => '$qtt with all your others arguments.
You are redirecting to another route, so you need to "handle" the redirection if you want to get those parameters:
/**
* #Route("/your-route/{count?}", name="mag", requirements={"count"="\d+"})
*/
public function yourFunction(Request $req, $count)
{
// true if is the first time you render this page or if you don't pass the value
if($count === null){
$count = afficherCount($req);
}
return $this->Render('yourTwigFile.html.twig',['count'=>$count]);
}
{count?} : the ? if for optional parameters so the first time you render this page is not necessary to pass the value in the URL
requirements={"count"="\d+"} : the value can only be an integer
(PS. this function is probably your index)
for more information / examples