「と紐づく子を削除したにも関わらず、ミーティングと子のリレーションが残り続けてしまう。」

backend/app/Http/Controllers/Api/FatherRelationsController.php

@@ -5,6 +5,7 @@ namespace App\Http\Controllers\Api;
 use App\Http\Controllers\Controller;
 use Illuminate\Support\Facades\Validator;
 use Illuminate\Http\Request;
+use Illuminate\Support\Facades\DB;
 use Illuminate\Support\Facades\Log;
 
 use App\Models\Child;
@@ -99,10 +100,22 @@ class FatherRelationsController extends Controller {
         }
 
         try {
-            FatherRelation::where('father_id', session()->get('fathers')['id'])->where('child_id', $child_id)->delete();
+            DB::beginTransaction();
+
+            $rel = FatherRelation::where('father_id', session()->get('fathers')['id'])->where('child_id', (int)$child_id);
+
+            foreach (Meeting::where('father_id', session()->get('fathers')['id'])->get() as $m) {
+                $apr = MeetingApprovals::where('child_id', (int)$child_id)->where('meeting_id', $m->id);
+                $apr->delete();
+            }
+
+            $rel->delete();
+
+            DB::commit();
         } catch (\Throwable $e) {
             // 失敗
             Log::critical($e->getMessage());
+            DB::rollback();
             return ['status_code' => 400, 'error_messages' => ['子の削除に失敗しました。']];
         }