public function update(Societe $societe)
{
$query = $this->_db->prepare(' UPDATE t_societe SET
raisonSociale=:raisonSociale, dateCreation=:dateCreation
WHERE id=:id') or die(print_r($this->_db->errorInfo()));
$query->bindValue(':id', $societe->id());
$query->bindValue(':raisonSociale', $societe->raisonSociale());
$query->bindValue(':dateCreation', $societe->dateCreation());
$query->execute();
$query->closeCursor();
}