public function addDeliveryInUserSession(EiDelivery $ei_delivery)
 {
     //On enregistre la livraison et le contexte d'enregistrement en session (profil) pour pouvoir retrouver l'objet dans les mêmes circonstances
     $this->getUser()->setAttribute("current_delivery_name", $ei_delivery->getName());
     $this->getUser()->setAttribute("current_delivery_id", $ei_delivery->getId());
     $this->getUser()->setAttribute("current_delivery_project_ref", $ei_delivery->getProjectRef());
     $this->getUser()->setAttribute("current_delivery_project_id", $ei_delivery->getProjectId());
     $this->getUser()->setAttribute("current_delivery_profile_name", $this->profile_name);
     $this->getUser()->setAttribute("current_delivery_profile_id", $this->profile_id);
     $this->getUser()->setAttribute("current_delivery_profile_ref", $this->profile_ref);
 }