diff --git a/app/Models/Keyword.php b/app/Models/Keyword.php
index e94bffd..f0b7242 100644
--- a/app/Models/Keyword.php
+++ b/app/Models/Keyword.php
@@ -21,4 +21,35 @@ class Keyword extends Model
         'options' => 'array',
         'image' => StorageFile::class,
     ];
+    
+    protected static function booted(): void
+    {
+        static::creating(function (Model $model) {
+            if ($model->parent_id) {
+                $parent = static::query()->findOrFail($model->parent_id);
+                $model->path = $parent->path . $parent->id . '-';
+                $model->level = $parent->level + 1;
+            } else {
+                $model->parent_id = 0;
+                $model->path = '-';
+                $model->level = 1;
+            }
+        });
+
+        static::updating(function (Model $model) {
+            if ($model->parent_id) {
+                $parent = static::query()->findOrFail($model->parent_id);
+                $model->path = $parent->path . $parent->id . '-';
+                $model->level = $parent->level + 1;
+            } else {
+                $model->parent_id = 0;
+                $model->path = '-';
+                $model->level = 1;
+            }
+        });
+
+        static::deleting(function (Model $model) {
+            static::query()->allChildren($model->id)->delete();
+        });
+    }
 }