Greetings!

Tried to implement the new Symfony 2.3 setter injection method as per documentation:

namespace Acme\HelloBundle\Mail;

use Symfony\Component\HttpFoundation\Request;

class Mailer
{
    protected $request;

    public function setRequest(Request $request = null)
    {
        $this->request = $request;
    }

    public function sendEmail()
    {
        if (null === $this->request) {
            // throw an error?
        }

        // ... do something using the request here
    }
}

and added the service definition as follows:

services:
    greeting_card_manager:
        class: Acme\HelloBundle\Mail\Mailer
        calls:
            - [setRequest, ['@?request']]

But Symfony throws the error:

ScopeWideningInjectionException: Scope Widening Injection detected: The definition "greeting_card_manager" references the service "request" which belongs to a narrower scope. Generally, it is safer to either move "greeting_card_manager" to scope "request" or alternatively rely on the provider pattern by injecting the container itself, and requesting the service "request" each time it is needed. In rare, special cases however that might not be necessary, then you can set the reference to strict=false to get rid of this error.

Am I missing something? Are the options mandatory as well?

scope: request
synthetic: true
synchronized: true

Thanx in advance