PaperParser/app/models/task.py

import datetime

from sqlalchemy import Integer, DateTime
from sqlalchemy.schema import Column, ForeignKey
from sqlalchemy.orm import Mapped, mapped_column, relationship
from app.extensions import db

class Task(db.Model):
    id: Mapped[int] = mapped_column(primary_key=True)
    task_id: Mapped[str] = mapped_column(nullable=True)

    name: Mapped[str] = mapped_column(unique=True)

    session_id = Column(Integer, ForeignKey("session.id"))
    session: Mapped['Session'] = relationship("Session", back_populates="tasks")
    
    collection_id = Column(Integer, ForeignKey("collection.id"))
    collection: Mapped['UsersCollection'] = relationship('UsersCollection', back_populates='task')
    
    datetime: Mapped[DateTime] = Column(DateTime, default=datetime.datetime.utcnow())
    status: Mapped[str]
    status_message: Mapped[str]
    type: Mapped[str]
    
    url: Mapped[str] = mapped_column(nullable=True)
    message: Mapped[str] = mapped_column(nullable=True)
    file: Mapped[str] = mapped_column(nullable=True)