#!/usr/bin/env python
# -*- encoding: utf-8 -*-
'''
@Date:2022/07/13 08:39:51
'''
from Business.Repository import Repository
from DataEntity.UserModels import EntityUser
from sqlalchemy import and_

# 用户操作业务逻辑


class BllUser(Repository):
    # _instance_lock = threading.Lock()
    # #实现单例模式
    # def __new__(cls, *args, **kwargs):
    #     if not hasattr(BllUser, "_instance"):
    #         with BllUser._instance_lock:
    #             if not hasattr(BllUser, "_instance"):
    #                 BllUser._instance = object.__new__(cls)
    #     return BllUser._instance

    def __init__(self, entityType=EntityUser):
        return super().__init__(entityType)

    # 用户账号密码登录
    def login(self, userAccount, userPwd):
        print(userAccount, userPwd,
              "++++++++++++++++++++++++++++++++++++++++++++++++++")
        print(self.findEntity(and_(EntityUser.account ==
                                   userAccount, EntityUser.password == userPwd)))
        return self.findEntity(and_(EntityUser.account == userAccount, EntityUser.password == userPwd))