在特定日期之后删除django模型实例的最佳方法

pip install django-celery

from datetime import datetime
from myapp.models import MyModel
from celery import shared_task

@shared_task
def delete_expired_instances():
    expired_instances = MyModel.objects.filter(expiration_date__lte=datetime.now())
    expired_instances.delete()

from celery import Celery
from datetime import timedelta

app = Celery('myapp', broker='pyamqp://guest@localhost//')

@app.on_after_configure.connect
def setup_periodic_tasks(sender, **kwargs):
    sender.add_periodic_task(timedelta(days=1), myapp.tasks.delete_expired_instances.s(), name='delete_expired_instances')

from __future__ import absolute_import, unicode_literals
from .celery import app as celery_app

__all__ = ['celery_app']

celery -A myapp worker --loglevel=info