archaeological_finds/migrations/0139_data_migration_owner_ownership.py


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import os

from django.db import migrations
from django.core.management import call_command


def load_data(apps, __):
    OwnershipStatus = apps.get_model("archaeological_finds", "ownershipstatus")
    if not OwnershipStatus.objects.count():
        migration = "0139_data_migration_ownership_status.json"
        json_path = os.sep.join(os.path.abspath(__file__).split(os.sep)[:-1] + [migration])
        call_command("loaddata", json_path)

    OwnerType = apps.get_model("archaeological_finds", "ownertype")
    if not OwnerType.objects.count():
        migration = "0139_data_migration_owner_type.json"
        json_path = os.sep.join(os.path.abspath(__file__).split(os.sep)[:-1] + [migration])
        call_command("loaddata", json_path)


class Migration(migrations.Migration):

    dependencies = [
        ('archaeological_finds', '0138_donors_owner_ownership_status_collections'),
    ]

    operations = [
        migrations.RunPython(load_data)
    ]