from sqlalchemy import Column, Integer, VARCHAR from sqlalchemy.ext.declarative import declarative_base from sqlalchemy.orm import relationship base = declarative_base() class Status(base): __tablename__ = 'statuses' id = Column(Integer, primary_key=True, autoincrement=True) name = Column(VARCHAR(100), nullable=False) orders = relationship('Order', back_populates='status') steps = relationship('Step', back_populates='status')