gistfile1.txt

public function getServiceConfig() 
{
    return array(
        'factories' => array(
            'my-model' => function($sm) {
                $model = new \My\Model($sm);
                return $model;
            }
        )
    );
}


class Model {
    protected $serviceManager;

    public function __construct(ServiceManager $serviceManager) {
        $this->serviceManager = $serviceManager;
    }

    public function someFunction() {
        $dependency = $this->serviceManager->get('my-dependency');
    }
}


someControllerAction() {
   $model = $this->getServiceLocator()->get('my-model');
}