带有继承和SQL的Python数据类设计问题

时间:2019-05-15 17:10:54

标签: multithreading inheritance python-3.7

我正在尝试从python 3.7设计具有@dataclass功能的类。我不确定我的情况是否具体。

让我们接受以下虚拟类:

@dataclass()
Person(threading.Thread):
server: str
database: str
name: str
lastName: str
cursor: Type[MySQLDB] = field=(default_factory=connect_to_db() )

def __post_init__(self):
    super().__init__(target= self.run(), name= self.name)
    conn_string: str = field(init=False, default="Data Source={0};Data Base={1}").__format__(
            self.server, self.database)

     name_lastname_string: str = field(init=False, default = "SELECT name FROM 
       [{0}].[names] 
       where name = [{1}];).__format__(self.database, self.last name())

def run(self):
    pass

def connect_to_db():
     try:    
         mysql_connect = mysql.connector.connect(user = self.user, 
                                                    password = self.password, 
                                                    host = self.host, 
                                                    database = self.database)            
         if (mysql_connect.is_connected()):
              return mysql_connect
         else:
              return None

def last_name(query):

    self.cursor.execute(query)
    respond = self.cursor.fetchone()
    return respond[0]

所以我的问题是,在特定于threading.Thread继承的情况下,这种数据类设计概念将能够赋予我更大的灵活性。还有我要从中定义属性的数据库调用。

0 个答案:

没有答案