Limit the schedule search to existing routes [SOLVED]

[tutmeister]

When searching for a route, the default schedule search when searching under destination and arrival airports shows a HTML select with options for each all airports. As we have 23000+ airports, this causes a huge unnecessary burden on our system. We'd like to limit the search to airports served by our routes only, so could someone help me with the code for this? I've looked through the API, but I don't have a test install environment right now, so can't afford to screw it up!

[tutmeister]

OK, I believe I have solved my own question.

In Core/Modules/Schedules/Schedules.php on Line 161, change:

$depapts = OperationsData::GetAllAirports();

to read:

$depapts = SchedulesData::getDepartureAirports(UV);
$arrapts = SchedulesData::getArrivalAiports(UV);

Where UV is your airline code.

In lib/skins/yourtheme/schedule_searchform.tpl, change starting on line 32:

	<?php
	if(!$depairports) $depairports = array();
		foreach($depairports as $airport)
		{
			echo '<option value="'.$airport->icao.'">'.$airport->icao
					.' ('.$airport->name.')</option>';
		}
	?>

To read:

	<?php
	if(!$arrairports) $arrairports = array();
		foreach($arrairports as $airport)
		{
			echo '<option value="'.$airport->icao.'">'.$airport->icao
					.' ('.$airport->name.')</option>';
		}
	?>