Django - How to run a function EVERYDAY?

问题:

I want to run this function everyday midnight to check expiry_date_notification. what can I do? I'm new to django and python.

def check_expiry_date(request):
    products = Product.objects.all()
    for product in products:
        product_id = product.id
        expiry_date = product.expiry_date
        notification_days = product.notification_days
        check_date = int((expiry_date - datetime.datetime.today()).days)
        if notification_days <= check_date:
            notification = Notification(product_id=product_id)
            notification.save()

回答1:

As others have said, Celery can schedule tasks to execute at a specific time.

from celery.schedules import crontab
from celery.task import periodic_task

@periodic_task(run_every=crontab(hour=7, minute=30, day_of_week="mon"))
def every_monday_morning():
    print("This is run every Monday morning at 7:30")

Install via pip install django-celery

回答2:

You can either write a custom management command and schedule its execution using cron, or you can use celery.

回答3:

Have a look at:

Celery - Distributed Task Queue