diff --git a/app/Model/Suggest.php b/app/Model/Suggest.php
index 49ed4fd..656f473 100644
--- a/app/Model/Suggest.php
+++ b/app/Model/Suggest.php
@@ -31,4 +31,9 @@ class Suggest extends Model
      * The attributes that should be cast to native types.
      */
     protected array $casts = ['id' => 'integer', 'category' => 'integer', 'user_id' => 'integer'];
+
+
+    const string CREATED_AT = 'create_time';
+
+    const string UPDATED_AT = 'update_time';
 }