dify/api/models/task.py

from extensions.ext_database import db
from celery import states
from datetime import datetime


class CeleryTask(db.Model):
    """Task result/status."""

    __tablename__ = 'celery_taskmeta'

    id = db.Column(db.Integer, db.Sequence('task_id_sequence'),
                   primary_key=True, autoincrement=True)
    task_id = db.Column(db.String(155), unique=True)
    status = db.Column(db.String(50), default=states.PENDING)
    result = db.Column(db.PickleType, nullable=True)
    date_done = db.Column(db.DateTime, default=datetime.utcnow,
                          onupdate=datetime.utcnow, nullable=True)
    traceback = db.Column(db.Text, nullable=True)
    name = db.Column(db.String(155), nullable=True)
    args = db.Column(db.LargeBinary, nullable=True)
    kwargs = db.Column(db.LargeBinary, nullable=True)
    worker = db.Column(db.String(155), nullable=True)
    retries = db.Column(db.Integer, nullable=True)
    queue = db.Column(db.String(155), nullable=True)


class CeleryTaskSet(db.Model):
    """TaskSet result."""

    __tablename__ = 'celery_tasksetmeta'

    id = db.Column(db.Integer, db.Sequence('taskset_id_sequence'),
                   autoincrement=True, primary_key=True)
    taskset_id = db.Column(db.String(155), unique=True)
    result = db.Column(db.PickleType, nullable=True)
    date_done = db.Column(db.DateTime, default=datetime.utcnow,
                          nullable=True)