class BaseModelMixin:

    def find_by_key(self):
        ...

    def upsert(self):
        result = self.find_by_key()
        session = self._db.session
        # # 住建厅数据初始化
        # if result:
        #     result.price_fujian = self.price_fujian
        #     result.fluctuating_fujian = self.fluctuating_fujian
        #     session.add(result)
        #     session.commit()
        if result:
            session.delete(result)
            session.flush()
        session.add(self)
        session.commit()