timetracker/games/migrations/0004_purchase_num_purchases.py

29 lines
792 B
Python

# Generated by Django 5.1.5 on 2025-01-30 11:57
from django.db import migrations, models
from django.db.models import Count
def initialize_num_purchases(apps, schema_editor):
Purchase = apps.get_model("games", "Purchase")
purchases = Purchase.objects.annotate(num_games=Count("games"))
for purchase in purchases:
purchase.num_purchases = purchase.num_games
purchase.save(update_fields=["num_purchases"])
class Migration(migrations.Migration):
dependencies = [
("games", "0003_purchase_updated_at"),
]
operations = [
migrations.AddField(
model_name="purchase",
name="num_purchases",
field=models.IntegerField(default=0),
),
migrations.RunPython(initialize_num_purchases),
]