Add more airlines and fix edit bugs

app/Models/Airport.php

@@ -2,6 +2,7 @@
 
 namespace App\Models;
 
+use Illuminate\Database\Eloquent\Casts\Attribute;
 use Illuminate\Database\Eloquent\Model;
 use Illuminate\Database\Eloquent\Relations\BelongsTo;
 
@@ -27,8 +28,25 @@ class Airport extends Model
         'elevation_ft'  => 'integer',
     ];
 
-    public function displayName() : string{
-        return "{$this->municipality} / {$this->name} ({$this->iata_code}/{$this->icao_code})";
+    protected $appends = [
+        'display_code',
+        'display_name',
+    ];
+
+    protected function displayName() : Attribute{
+        return Attribute::make(
+            get: function () {
+                $codes = array_filter([$this->iata_code, $this->icao_code]);
+                $codeString = count($codes) ? ' (' . implode('/', $codes) . ')' : '';
+                return "{$this->municipality} / {$this->name}{$codeString}";
+            }
+        );
+    }
+    protected function displayCode(): Attribute
+    {
+        return Attribute::make(
+            get: fn () => $this->iata_code ?? $this->icao_code ?? $this->local_code ?? '---'
+        );
     }
 
     public function region(): BelongsTo