Set the first user to be an admin

app/Http/Controllers/Auth/RegisterController.php

@@ -9,6 +9,7 @@ use Illuminate\Auth\Events\Registered;
 use Illuminate\Foundation\Auth\RegistersUsers;
 use Illuminate\Support\Facades\Hash;
 use Illuminate\Support\Facades\Log;
+use Illuminate\Support\Facades\DB;
 
 class RegisterController extends Controller
 {
@@ -57,6 +58,7 @@ class RegisterController extends Controller
             'name'     => $data['name'],
             'email'    => $data['email'],
             'password' => Hash::make($data['password']),
+            'is_admin' => DB::table('users')->count() === 0,
         ]);
     }
 }