add zfw field to aircraft

app/Database/migrations/2017_06_09_010621_create_aircrafts_table.php

@@ -19,6 +19,7 @@ class CreateAircraftsTable extends Migration
             $table->string('name', 50);
             $table->string('registration', 10)->nullable();
             $table->string('tail_number', 10)->nullable();
+            $table->unsignedDecimal('zfw', 12)->nullable()->default(0);
             $table->unsignedBigInteger('flight_time')->nullable()->default(0);
             $table->boolean('active')->default(true);
             $table->unsignedTinyInteger('state')->default(AircraftState::PARKED);

app/Models/Aircraft.php

@@ -13,6 +13,7 @@ class Aircraft extends BaseModel
         'icao',
         'registration',
         'tail_number',
+        'zfw',
         'active',
     ];
 
@@ -22,7 +23,8 @@ class Aircraft extends BaseModel
      * @var array
      */
     protected $casts = [
-        'active'       => 'boolean',
+        'zfw'       => 'float',
+        'active'    => 'boolean',
     ];
 
     /**