function update(Airport $airport)
{
Diff::compare($airport, Input::all(), function ($key, $value, $model) {
$change = new AirportChange();
$change->airport_id = $model->id;
$change->user_id = Auth::id();
$change->key = $key;
$change->value = $value;
$change->save();
});
Messages::success('Thank you for your submission. We will be evaluating your feedback soon.');
return Redirect::route('airport.show', $airport->icao);
}