# 定义表格映射类 from sqlalchemy import Column, Integer, String from sqlalchemy.orm import declarative_base # 创建 StockBasic 映射类 class StockBasic(declarative_base()): __tablename__ = 'stock_basic' id = Column(Integer, primary_key=True, autoincrement=True) ts_code = Column(String, nullable=False, unique=True) symbol = Column(String, nullable=False) name = Column(String) comp_name = Column(String) comp_name_en = Column(String) isin_code = Column(String) exchange = Column(String) list_board = Column(String) list_date = Column(String) delist_date = Column(String) crncy_code = Column(String) pinyin = Column(String) list_board_name = Column(String) is_shsc = Column(String) comp_code = Column(String) def __init__(self, **kwargs): self.__dict__.update(kwargs) def __repr__(self): return f"" def to_dict(self): # 定义要保留的属性列表 allowed_attributes = ['delist_date', 'is_shsc', 'comp_name', 'comp_name_en'] # 创建字典并添加需要保留的属性 obj_dict = {} for attr in allowed_attributes: obj_dict[attr] = getattr(self, attr) return obj_dict