function getAirlines($callsign = null)
{
if (is_null($this->airlines)) {
$this->airlines = Airline::get();
}
if (!is_null($callsign)) {
return $this->airlines->first(function ($key, $airline) use($callsign) {
return preg_match('/^' . $airline->icao . '[0-9]{1,5}[A-Z]{0,2}$/', $callsign);
});
}
return $this->airlines;
}
protected function prepareDatabase()
{
// Get database records for all airlines, airports, registrations
$this->airlines = Airline::get();
$this->registrations = Registration::get()->each(function ($registration) {
$registration->prefix = str_replace('-', '', $registration->prefix);
if (!$registration->regex) {
$registration->prefix .= '.*';
}
});
}
