thrillwiki_django_no_react/parks/management/commands/update_park_counts.py

from django.core.management.base import BaseCommand
from django.db.models import Count, Q
from parks.models import Park

class Command(BaseCommand):
    help = 'Update total_rides and total_roller_coasters counts for all parks'

    def handle(self, *args, **options):
        parks = Park.objects.all()
        operating_rides = Q(status='OPERATING')
        updated = 0

        for park in parks:
            # 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
            )
            updated += 1

        self.stdout.write(
            self.style.SUCCESS(
                f'Successfully updated counts for {updated} parks'
            )
        )