fix bug

app/db/__init__.py

@@ -149,10 +149,6 @@ class Base:
 
     @db_update
     def create(self, db: Session):
-        # 如果是对象，转换为json字符串
-        for key, value in self.__dict__.items():
-            if ObjectUtils.is_obj(value):
-                setattr(self, key, json.dumps(value))
         db.add(self)
 
     @classmethod