public function getCampaniasFree()
{
try {
$dataCampania = Campania::whereNull('customer_id')->lists('name', 'id');
$return = array('state' => 1, 'msg' => 'ok', 'data' => $dataCampania);
} catch (Exception $exc) {
$return = array('state' => 0, 'msg' => $exc->getMessage());
}
return response()->json($return);
}
