Fix detach behavior

src/TranslatedBehavior.php

@@ -51,19 +51,23 @@ class TranslatedBehavior extends BaseTranslatedBehavior
      */
     public function events()
     {
-        $beforeDelete = function() {
-            $this->owner->unlinkAll($this->translateRelation, true);
-        };
-        $afterSave = function() {
-            $this->owner->link('currentTranslate', $this->getTranslation());
-        };
         return [
-            ActiveRecord::EVENT_BEFORE_DELETE => $beforeDelete,
-            ActiveRecord::EVENT_AFTER_INSERT => $afterSave,
-            ActiveRecord::EVENT_AFTER_UPDATE => $afterSave,
+            ActiveRecord::EVENT_BEFORE_DELETE => 'eventBeforeDelete',
+            ActiveRecord::EVENT_AFTER_INSERT => 'eventAfterSave',
+            ActiveRecord::EVENT_AFTER_UPDATE => 'eventAfterSave',
         ];
     }
 
+    public function eventAfterSave()
+    {
+        $this->owner->link('currentTranslate', $this->getTranslation());
+    }
+
+    public function eventBeforeDelete()
+    {
+        $this->owner->unlinkAll($this->translateRelation, true);
+    }
+
     /**
      * Returns the translation model for the specified language.
      * @param string|null $language