mirror of
https://github.com/pacnpal/thrillwiki_django_no_react.git
synced 2025-12-20 10:51:09 -05:00
36 lines
1.1 KiB
Python
36 lines
1.1 KiB
Python
from django.db.models.signals import post_save, post_delete
|
|
from django.dispatch import receiver
|
|
from django.db.models import Count, Q
|
|
|
|
from rides.models import Ride
|
|
from .models import Park
|
|
|
|
def update_park_ride_counts(park):
|
|
"""Update total_rides and total_roller_coasters for a park"""
|
|
operating_rides = Q(status='OPERATING')
|
|
|
|
# Count total operating rides
|
|
total_rides = park.rides.filter(operating_rides).count()
|
|
|
|
# Count total operating roller coasters
|
|
total_coasters = park.rides.filter(
|
|
operating_rides,
|
|
category='RC'
|
|
).count()
|
|
|
|
# Update park counts
|
|
Park.objects.filter(id=park.id).update(
|
|
total_rides=total_rides,
|
|
total_roller_coasters=total_coasters
|
|
)
|
|
|
|
@receiver(post_save, sender=Ride)
|
|
def ride_saved(sender, instance, **kwargs):
|
|
"""Update park counts when a ride is saved"""
|
|
update_park_ride_counts(instance.park)
|
|
|
|
@receiver(post_delete, sender=Ride)
|
|
def ride_deleted(sender, instance, **kwargs):
|
|
"""Update park counts when a ride is deleted"""
|
|
update_park_ride_counts(instance.park)
|