public function createBySociete(Societe $societe, \DateTime $dateCreation = null, Etablissement $etablissement = null)
{
if (!$dateCreation) {
$dateCreation = new \DateTime();
}
$contrat = new Contrat();
$contrat->setSociete($societe);
$contrat->setDateCreation($dateCreation);
$contrat->setStatut(self::STATUT_BROUILLON);
$contrat->addPrestation(new Prestation());
$contrat->addProduit(new Produit());
if ($etablissement) {
$contrat->addEtablissement($etablissement);
} else {
$contrat->addEtablissement($societe->getEtablissements()->first());
}
return $contrat;
}