from app.extensions import db import datetime from sqlalchemy.orm import relationship, mapped_column class Adoptions(db.Model) : id = mapped_column(db.Integer, primary_key=True) publisher_id = mapped_column(db.Integer, db.ForeignKey('user.id'), nullable=False) pet_id = mapped_column(db.Integer, db.ForeignKey('pet.id'), nullable=False) publish_date = mapped_column(db.DateTime, default=datetime.datetime.utcnow, nullable=False) status_id = mapped_column(db.Integer, db.ForeignKey('adoption_status.id'), nullable=False) publisher = relationship("User") pet = relationship("Pet") status = relationship("AdoptionStatus")