#22965: migrations break subclasses of User
---------------------------------+----------------------
Reporter: CollinAnderson | Owner: nobody
Type: Bug | Status: new
Component: Migrations | Version: 1.7-rc-1
Severity: Release blocker | Keywords:
Triage Stage: Unreviewed | Has patch: 0
Easy pickings: 0 | UI/UX: 0
---------------------------------+----------------------
Unmigrated app in a project not swapping out the `User` model:
{{{
from django.contrib.auth.models import User
from django.db import models
class UserProfile(User):
bio = models.TextField()
}}}
`syncdb` and `migrate` give this error on latest `1.7` and `master`:
{{{
~/usersubclasstest$ rm db.sqlite3; PYTHONPATH=../django1.7 ./manage.py
syncdb
Operations to perform:
Synchronize unmigrated apps: account
Apply all migrations: admin, contenttypes, auth, sessions
Synchronizing apps without migrations:
Creating tables...
Creating table account_userprofile
Installing custom SQL...
Installing indexes...
Running migrations:
Applying contenttypes.0001_initial...Traceback (most recent call last):
File "./manage.py", line 10, in <module>
execute_from_command_line(sys.argv)
File "/home/collin/django1.7/django/core/management/__init__.py", line
385, in execute_from_command_line
utility.execute()
File "/home/collin/django1.7/django/core/management/__init__.py", line
377, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/home/collin/django1.7/django/core/management/base.py", line 288,
in run_from_argv
self.execute(*args, **options.__dict__)
File "/home/collin/django1.7/django/core/management/base.py", line 337,
in execute
output = self.handle(*args, **options)
File "/home/collin/django1.7/django/core/management/base.py", line 532,
in handle
return self.handle_noargs(**options)
File "/home/collin/django1.7/django/core/management/commands/syncdb.py",
line 27, in handle_noargs
call_command("migrate", **options)
File "/home/collin/django1.7/django/core/management/__init__.py", line
115, in call_command
return klass.execute(*args, **defaults)
File "/home/collin/django1.7/django/core/management/base.py", line 337,
in execute
output = self.handle(*args, **options)
File
"/home/collin/django1.7/django/core/management/commands/migrate.py", line
160, in handle
executor.migrate(targets, plan, fake=options.get("fake", False))
File "/home/collin/django1.7/django/db/migrations/executor.py", line 62,
in migrate
self.apply_migration(migration, fake=fake)
File "/home/collin/django1.7/django/db/migrations/executor.py", line 90,
in apply_migration
if self.detect_soft_applied(migration):
File "/home/collin/django1.7/django/db/migrations/executor.py", line
134, in detect_soft_applied
apps = project_state.render()
File "/home/collin/django1.7/django/db/migrations/state.py", line 71, in
render
raise InvalidBasesError("Cannot resolve bases for %r" %
new_unrendered_models)
django.db.migrations.state.InvalidBasesError: Cannot resolve bases for
[<ModelState: 'account.UserProfile'>]
}}}
Initializing the database using `1.6` `syncdb` doesn't help either (unless
you use --fake).
I have a
[https://github.com/collinanderson/usersubclasstest/commits/master minimal
project that reproduces the error on github].
Feel free to remove the release blocker status if what I'm doing isn't
supported. If it's not supported, we should have a more helpful error
message.
--
Ticket URL: <https://code.djangoproject.com/ticket/22965>
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