Use new extenders (#25)

extensions/likes/extend.php

@@ -7,6 +7,8 @@
  * LICENSE file that was distributed with this source code.
  */
 
+use Flarum\Api\Controller;
+use Flarum\Api\Serializer\BasicUserSerializer;
 use Flarum\Api\Serializer\PostSerializer;
 use Flarum\Extend;
 use Flarum\Likes\Event\PostWasLiked;
@@ -33,11 +35,29 @@ return [
     (new Extend\Notification())
         ->type(PostLikedBlueprint::class, PostSerializer::class, ['alert']),
 
-    function (Dispatcher $events) {
-        $events->subscribe(Listener\AddPostLikesRelationship::class);
-        $events->subscribe(Listener\SaveLikesToDatabase::class);
+    (new Extend\ApiSerializer(PostSerializer::class))
+        ->hasMany('likes', BasicUserSerializer::class)
+        ->attribute('canLike', function (PostSerializer $serializer, $model) {
+            return (bool) $serializer->getActor()->can('like', $model);
+        }),
 
-        $events->listen(PostWasLiked::class, Listener\SendNotificationWhenPostIsLiked::class);
-        $events->listen(PostWasUnliked::class, Listener\SendNotificationWhenPostIsUnliked::class);
+    (new Extend\ApiController(Controller\ShowDiscussionController::class))
+        ->addInclude('posts.likes'),
+
+    (new Extend\ApiController(Controller\ListPostsController::class))
+        ->addInclude('likes'),
+    (new Extend\ApiController(Controller\ShowPostController::class))
+        ->addInclude('likes'),
+    (new Extend\ApiController(Controller\CreatePostController::class))
+        ->addInclude('likes'),
+    (new Extend\ApiController(Controller\UpdatePostController::class))
+        ->addInclude('likes'),
+
+    (new Extend\Event())
+        ->listen(PostWasLiked::class, Listener\SendNotificationWhenPostIsLiked::class)
+        ->listen(PostWasUnliked::class, Listener\SendNotificationWhenPostIsUnliked::class),
+
+    function (Dispatcher $events) {
+        $events->subscribe(Listener\SaveLikesToDatabase::class);
     },
 ];