Stricter checks on ACARS API data (#451)

* Stricter checks on ACARS API data

* More checks

app/Models/Airport.php

@@ -66,10 +66,10 @@ class Airport extends Model
      * Validation rules
      */
     public static $rules = [
-        'icao'                 => 'required',
-        'iata'                 => 'nullable',
+        'icao'                 => 'required|size:4',
+        'iata'                 => 'sometimes|nullable',
         'name'                 => 'required',
-        'location'             => 'nullable',
+        'location'             => 'sometimes',
         'lat'                  => 'required|numeric',
         'lon'                  => 'required|numeric',
         'ground_handling_cost' => 'nullable|numeric',

app/Models/Flight.php

@@ -93,8 +93,8 @@ class Flight extends Model
         'flight_number'  => 'required',
         'route_code'     => 'nullable',
         'route_leg'      => 'nullable',
-        'dpt_airport_id' => 'required',
-        'arr_airport_id' => 'required',
+        'dpt_airport_id' => 'required|size:4|exists:airports,id',
+        'arr_airport_id' => 'required|size:4|exists:airports,id',
         'level'          => 'nullable',
     ];