protected function dataUpdated(Stop $o, Stop $n)
{
$changes = array();
if ($o->getFlipStopTag() != $n->getFlipStopTag()) {
$changes["flip stop tag"] = $o->getFlipStopTag() . " | " . $n->getFlipStopTag();
}
if ($o->getTitle() != $n->getTitle()) {
$changes["title"] = $o->getTitle() . " | " . $n->getTitle();
}
if ($o->getLatitude() != $n->getLatitude()) {
$changes["latitude"] = $o->getLatitude() . " | " . $n->getLatitude();
}
if ($o->getLongitude() != $n->getLongitude()) {
$changes["longitude"] = $o->getLongitude() . " | " . $n->getLongitude();
}
return $changes;
}
