from sqlalchemy import Column, Integer, String, DateTime, Text from sqlalchemy.orm import relationship from datetime import datetime from app.db.base import Base class Supplier(Base): __tablename__ = "suppliers" id = Column(Integer, primary_key=True, index=True) name = Column(String, unique=True, index=True, nullable=False) contact_person = Column(String) email = Column(String) phone = Column(String) address = Column(Text) created_at = Column(DateTime, default=datetime.utcnow) updated_at = Column(DateTime, default=datetime.utcnow, onupdate=datetime.utcnow) items = relationship("Item", back_populates="supplier")