Use new Model extender

extend.php

@@ -8,12 +8,14 @@
  */
 
 use Flarum\Api\Event\Serializing;
-use Flarum\Event\ConfigureModelDates;
 use Flarum\Extend;
 use Flarum\Flags\Api\Controller\CreateFlagController;
 use Flarum\Flags\Api\Controller\DeleteFlagsController;
 use Flarum\Flags\Api\Controller\ListFlagsController;
+use Flarum\Flags\Flag;
 use Flarum\Flags\Listener;
+use Flarum\Post\Post;
+use Flarum\User\User;
 use Illuminate\Contracts\Events\Dispatcher;
 
 return [
@@ -29,8 +31,13 @@
         ->post('/flags', 'flags.create', CreateFlagController::class)
         ->delete('/posts/{id}/flags', 'flags.delete', DeleteFlagsController::class),
 
+    (new Extend\Model(User::class))
+        ->dateAttribute('read_flags_at'),
+
+    (new Extend\Model(Post::class))
+        ->hasMany('flags', Flag::class, 'post_id'),
+
     function (Dispatcher $events) {
-        $events->listen(ConfigureModelDates::class, Listener\AddFlagsApiDates::class);
         $events->listen(Serializing::class, Listener\AddFlagsApiAttributes::class);
 
         $events->subscribe(Listener\AddPostFlagsRelationship::class);

src/Listener/AddPostFlagsRelationship.php

@@ -14,12 +14,9 @@
 use Flarum\Api\Event\WillSerializeData;
 use Flarum\Api\Serializer\PostSerializer;
 use Flarum\Event\GetApiRelationship;
-use Flarum\Event\GetModelRelationship;
 use Flarum\Flags\Api\Controller\CreateFlagController;
 use Flarum\Flags\Api\Serializer\FlagSerializer;
-use Flarum\Flags\Flag;
 use Flarum\Post\Event\Deleted;
-use Flarum\Post\Post;
 use Illuminate\Contracts\Events\Dispatcher;
 use Illuminate\Database\Eloquent\Collection;
 
@@ -30,24 +27,12 @@ class AddPostFlagsRelationship
      */
     public function subscribe(Dispatcher $events)
     {
-        $events->listen(GetModelRelationship::class, [$this, 'getModelRelationship']);
         $events->listen(Deleted::class, [$this, 'postWasDeleted']);
         $events->listen(GetApiRelationship::class, [$this, 'getApiRelationship']);
         $events->listen(WillGetData::class, [$this, 'includeFlagsRelationship']);
         $events->listen(WillSerializeData::class, [$this, 'prepareApiData']);
     }
 
-    /**
-     * @param GetModelRelationship $event
-     * @return \Illuminate\Database\Eloquent\Relations\HasMany|null
-     */
-    public function getModelRelationship(GetModelRelationship $event)
-    {
-        if ($event->isRelationship(Post::class, 'flags')) {
-            return $event->model->hasMany(Flag::class, 'post_id');
-        }
-    }
-
     /**
      * @param Deleted $event
      */