# Generated by Django 5.2.13 on 2026-05-17 20:02

import django.db.models.deletion
from django.conf import settings
from django.db import migrations, models


class Migration(migrations.Migration):

    dependencies = [
        ("rims_grants", "0037_grantcall_auto_close_confirmed_at_and_more"),
        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
    ]

    operations = [
        migrations.CreateModel(
            name="GrantCallVersion",
            fields=[
                (
                    "id",
                    models.BigAutoField(
                        auto_created=True, primary_key=True, serialize=False, verbose_name="ID"
                    ),
                ),
                ("version_number", models.PositiveIntegerField()),
                ("snapshot", models.JSONField(default=dict)),
                (
                    "change_summary",
                    models.CharField(
                        blank=True,
                        help_text="Short label describing the change (e.g. 'Deadline extended', 'Description revised').",
                        max_length=255,
                    ),
                ),
                ("created_at", models.DateTimeField(auto_now_add=True)),
                (
                    "call",
                    models.ForeignKey(
                        on_delete=django.db.models.deletion.CASCADE,
                        related_name="versions",
                        to="rims_grants.grantcall",
                    ),
                ),
                (
                    "created_by",
                    models.ForeignKey(
                        blank=True,
                        null=True,
                        on_delete=django.db.models.deletion.SET_NULL,
                        related_name="grant_call_versions_created",
                        to=settings.AUTH_USER_MODEL,
                    ),
                ),
            ],
            options={
                "ordering": ["-version_number", "-pk"],
                "constraints": [
                    models.UniqueConstraint(
                        fields=("call", "version_number"), name="uniq_grant_call_version"
                    )
                ],
            },
        ),
    ]