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webvirtcloud/appsettings/migrations/0020_fix_setting_choices.py
catborise 7392a5b4d2 fix(appsettings): settings take only the values the panel can use
The Settings page saved whatever was posted, and some lists offered
values the panel cannot use:

- Quota Debug could not be turned off: "False" is a non-empty text and
  counted as on.
- VM Clone Name Prefix showed as a True/False list, so no prefix could
  be typed, and touching it set the prefix to True.
- Disk SCSI Controller listed " lsilogic" with a space, never shown as
  chosen, and virtio-blk, which is no SCSI controller.
- VM Machine Type listed x86_64, an architecture; VM CD-ROM Device
  listed virtio, a bus a CD-ROM cannot use.
- Logs per Page and Disk Owner UID/GID are read with int(): a letter
  broke the logs page and VM create.

A migration fixes the lists and moves a value they no longer offer to
the default (the clone prefix keeps its text). A listed setting now
takes one of its choices, and every number setting a whole number in
its range, checked before it is saved.
2026-10-25 22:02:53 +03:00

32 lines
1.3 KiB
Python

from django.db import migrations
# key: (its choices, the value a removed choice becomes)
FIXES = {
"CLONE_INSTANCE_DEFAULT_PREFIX": ("", None), # a text, not True or False
"INSTANCE_VOLUME_DEFAULT_SCSI_CONTROLLER": ("virtio-scsi,lsilogic", "virtio-scsi"), # virtio-blk is no SCSI controller
"INSTANCE_MACHINE_DEFAULT_TYPE": ("q35,pc,virt", "q35"), # x86_64 is an architecture
"INSTANCE_CDROM_ADD": ("None,ide,sata,scsi", "sata"), # a CD-ROM has no virtio bus
}
def fix_choices(apps, schema_editor):
"""Choices the panel cannot use, a space that kept lsilogic from being
shown as chosen, and a text setting listed as True or False. Not undone
on the way back, as nothing needs the old choices."""
AppSettings = apps.get_model("appsettings", "AppSettings")
for setting in AppSettings.objects.using(schema_editor.connection.alias).filter(key__in=FIXES):
choices, fallback = FIXES[setting.key]
setting.choices = choices
if choices and setting.value not in choices.split(","):
setting.value = fallback
setting.save()
class Migration(migrations.Migration):
dependencies = [
("appsettings", "0019_prebuilt_themes"),
]
operations = [
migrations.RunPython(fix_choices, migrations.RunPython.noop),
]