from sqlalchemy import Column, Integer, String, Boolean from sqlalchemy.orm import relationship from database import Base class Printer(Base): __tablename__ = "printers" id = Column(Integer, primary_key=True, index=True) name = Column(String, nullable=False) ip_address = Column(String, nullable=False) port = Column(Integer, default=9100, nullable=False) is_active = Column(Boolean, default=True, nullable=False) products = relationship("Product", back_populates="printer_zone") print_logs = relationship("PrintLog", back_populates="printer")