66 lines
2.3 KiB
Python
Executable File
66 lines
2.3 KiB
Python
Executable File
from django.db import models
|
|
from django.db.models import Q
|
|
from django.urls import reverse
|
|
from django.utils import timezone
|
|
|
|
from app.base.forms.fields import DateTimeField, TextField
|
|
|
|
from datetime import datetime
|
|
from typing import TYPE_CHECKING
|
|
if TYPE_CHECKING:
|
|
from django.db.models import OuterRef
|
|
from app.base.models.person import Person
|
|
from app.base.models.booking_type import BookingType
|
|
from datetime import timedelta
|
|
|
|
|
|
class Booking(models.Model):
|
|
type: 'models.ForeignKey[BookingType]' = models.ForeignKey(
|
|
'BookingType', on_delete=models.PROTECT, verbose_name='Art')
|
|
user: 'models.ForeignKey[Person]' = models.ForeignKey(
|
|
'Person', on_delete=models.CASCADE, verbose_name='Nutzer:in')
|
|
begin_time = DateTimeField('Beginn', default=datetime.now)
|
|
end_time = DateTimeField('Ende', blank=True, null=True)
|
|
comment = TextField('Kommentar', blank=True)
|
|
|
|
class Meta:
|
|
verbose_name = 'Buchung'
|
|
verbose_name_plural = 'Buchungen'
|
|
|
|
def get_absolute_url(self):
|
|
return reverse('booking:detail', kwargs={'pk': self.pk})
|
|
|
|
def __str__(self):
|
|
return 'Buchung von {} am {} von {}-{} Uhr'.format(
|
|
self.user,
|
|
self.begin_time.strftime('%d.%m.%Y'),
|
|
self.begin_time.strftime('%H:%M'),
|
|
self.end_time.strftime('%H:%M') if self.end_time else '')
|
|
|
|
@property
|
|
def duration(self) -> 'int|None':
|
|
if self.end_time:
|
|
diff = self.end_time - self.begin_time # type: timedelta
|
|
return round(diff.total_seconds() / 60)
|
|
return None
|
|
|
|
@property
|
|
def calculated_price(self):
|
|
traits = self.user.traits_at_date(self.begin_time).values_list('trait')
|
|
traits = set(x[0] for x in traits)
|
|
return self.type.price_with_traits(self.duration or 0, traits)
|
|
|
|
@staticmethod
|
|
def latest_checkin_query(for_user: 'Person|OuterRef'):
|
|
objects = Booking.objects.filter(user=for_user)
|
|
return objects.order_by('-begin_time').values('begin_time')[:1]
|
|
|
|
@staticmethod
|
|
def currently_open_checkin(for_user: 'Person|OuterRef') -> 'Booking|None':
|
|
return Booking.objects.filter(
|
|
Q(user=for_user),
|
|
Q(begin_time__lte=timezone.now()),
|
|
Q(end_time=None),
|
|
Q(type__is_checkin=True)
|
|
).first()
|