qqq

models.py

from django.utils import timezone
from django.db import models
from django.db.models import CASCADE


class EventsQueryset(models.QuerySet):
    def upcoming(self):
        now = timezone.now()
        return self.filter(date__gte=now).order_by('date')

    def passed(self):
        now = timezone.now()
        return self.filter(date__lt=now).order_by('-date')


class EventsManager(models.Manager):
    def get_queryset(self):
        return EventsQueryset(self.model, using=self._db)

    def upcoming(self):
        return self.get_queryset().upcoming()

    def passed(self):
        return self.get_queryset().passed()


class Event(models.Model):
    location = models.ForeignKey('Location', on_delete=CASCADE)
    name = models.CharField(max_length=100)
    description = models.TextField(blank=True, default='')
    date = models.DateTimeField()
    duration = models.DurationField()
    link = models.URLField(null=True, blank=True)
    theme = models.CharField(max_length=1000, default='', blank=True)
    is_partner = models.BooleanField(default=False)
    is_published = models.BooleanField(default=True)

    objects = EventsManager()

    def __str__(self):
        return self.name

    class Meta:
        ordering = ['-date']