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django-terminator

One-time execution of Django model methods, when model instance meets specific conditions.

Examples

import datetime

from django.db import models
from django.db.models import Q
from terminator import execute_once


class Message(models.Model):
    sent = models.BooleanField(default=False)
    sender_email = models.EmailField()
    recipient_email = models.EmailField()
    subject = models.CharField(max_length=128)
    body = models.TextField()

    @execute_once(Q())
    def send(self):
        # Some code which sends the email…
        pass


class BirthdayGift(models.Model):
    birthday_date = models.DateField()

    @execute_once(lambda cls: Q(birthday_date__lte=datetime.date.today()))
    def send(self):
        # Some code which sends the gift…
        pass

Later:

from terminator import terminate

terminate()

For more extensive documentation, see the tests.

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One-time execution of Django model methods.

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