Django filter events occurring today

Question

I\'m struggling to logically represent the following in a Django filter. I have an \'event\' model, and a location model, which can be represented as:

class          


        

Answer 1

timezone.localtime(timezone.now()).date() gets you the correct date.

To get events occurring today(start today):

from django.utils import timezone

class EventManager(models.Manager):
    def bookings_today(self, location_id):
        t = timezone.localtime(timezone.now())
        bookings = self.filter(location=location_id, start__year = t.year,
            start__month = t.month, start__day = t.day, )

Answer 2

I think exclude is your friend here!

today = datetime.date.today()
tomorrow = today + datetime.timedelta( days = 1 )
self.filter( location = location_id ).exclude( end_date__lt = today ).exclude( start_date__gte = tomorrow )

Answer 3

None of the answers I saw is timezone aware.

Why don't you just do this instead:

from django.utils import timezone

class EventManager(models.Manager):
    def bookings_today(self, location_id):
        bookings = self.filter(location=location_id, start__gte=timezone.now().replace(hour=0, minute=0, second=0), end__lte=timezone.now().replace(hour=23, minute=59, second=59))

Answer 4

You need to use a range there like this:

class EventManager(models.Manager):
    def bookings_today(self, location_id):
        from datetime import datetime
        now = datetime.now()
        bookings = self.filter(location=location_id, start__lte=now, end__gte=now)
        return bookings

Answer 5

You'll need two distinct datetime thresholds - today_start and today_end:

from datetime import datetime, timedelta, time

today = datetime.now().date()
tomorrow = today + timedelta(1)
today_start = datetime.combine(today, time())
today_end = datetime.combine(tomorrow, time())

Anything happening today must have started before today_end and ended after today_start, so:

class EventManager(models.Manager):
    def bookings_today(self, location_id):
        # Construction of today_end / today_start as above, omitted for brevity
        return self.filter(location=location_id, start__lte=today_end, end__gte=today_start)

(P.S. Having a DateTimeField (not a DateField) called foo_date is irritatingly misleading - consider just start and end...)

Answer 6

How about this: pub_date__gte=datetime(2005, 1, 1)? Use _gte and __lte to limit start and end within one day using chaining method.

Maybe something like self.filter(start__gte=datetime(2005, 1, 1)).filter(end__lte=datetime(2005, 1, 1)). lte stands for less or equal than, gte stands for greater or equal than.

I find it in django doc.