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80 lines
2.6 KiB
Python
80 lines
2.6 KiB
Python
# Generated by Django 4.2.16 on 2024-11-20 17:08
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import django.db.models.deletion
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from django.conf import settings
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from django.db import migrations, models
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from django.db.migrations.state import StateApps
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def migrate_meta_groups(apps: StateApps, schema_editor):
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Group = apps.get_model("core", "Group")
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Club = apps.get_model("club", "Club")
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meta_groups = Group.objects.filter(is_meta=True)
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clubs = list(Club.objects.all())
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for club in clubs:
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club.board_group = meta_groups.get_or_create(
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name=club.unix_name + settings.SITH_BOARD_SUFFIX
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)[0]
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club.members_group = meta_groups.get_or_create(
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name=club.unix_name + settings.SITH_MEMBER_SUFFIX
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)[0]
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Club.objects.bulk_update(clubs, fields=["board_group", "members_group"])
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# steps of the migration :
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# - Create a nullable field for the board group and the member group
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# - Edit those new fields to make them point to currently existing meta groups
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# - When this data migration is done, make the fields non-nullable
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class Migration(migrations.Migration):
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dependencies = [
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("core", "0040_alter_user_options_user_user_permissions_and_more"),
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("club", "0011_auto_20180426_2013"),
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]
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operations = [
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migrations.AddField(
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model_name="club",
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name="board_group",
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field=models.OneToOneField(
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blank=True,
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null=True,
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on_delete=django.db.models.deletion.CASCADE,
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related_name="club_board",
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to="core.group",
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),
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),
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migrations.AddField(
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model_name="club",
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name="members_group",
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field=models.OneToOneField(
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blank=True,
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null=True,
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on_delete=django.db.models.deletion.CASCADE,
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related_name="club",
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to="core.group",
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),
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),
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migrations.RunPython(
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migrate_meta_groups, reverse_code=migrations.RunPython.noop, elidable=True
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),
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migrations.AlterField(
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model_name="club",
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name="board_group",
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field=models.OneToOneField(
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on_delete=django.db.models.deletion.CASCADE,
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related_name="club_board",
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to="core.group",
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),
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),
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migrations.AlterField(
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model_name="club",
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name="members_group",
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field=models.OneToOneField(
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on_delete=django.db.models.deletion.CASCADE,
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related_name="club",
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to="core.group",
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),
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),
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]
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