# Generated by Django 3.1.7 on 2021-03-28 19:36

from ..models import Hit, Session
from django.db import migrations, models
import django.db.models.deletion
from django.db.models import Subquery, OuterRef


def add_service_to_hits(_a, _b):
    service = Session.objects.filter(pk=OuterRef("session")).values_list("service")[:1]

    Hit.objects.update(service=Subquery(service))


class Migration(migrations.Migration):

    dependencies = [
        ("core", "0008_auto_20200628_1403"),
        ("analytics", "0005_auto_20210328_1518"),
    ]

    operations = [
        migrations.AddField(
            model_name="hit",
            name="service",
            field=models.ForeignKey(
                null=True,
                on_delete=django.db.models.deletion.CASCADE,
                to="core.service",
            ),
        ),
        migrations.RunPython(add_service_to_hits, lambda: ()),
        migrations.AlterField(
            model_name="hit",
            name="service",
            field=models.ForeignKey(
                on_delete=django.db.models.deletion.CASCADE, to="core.service"
            ),
        ),
    ]