#26401: Allow auth machinery to be used without installing auth app
-------------------------------------+-------------------------------------
Reporter: Matt Johnson | Owner: Andrew
| Konoff
Type: Bug | Status: closed
Component: contrib.auth | Version: 1.9
Severity: Normal | Resolution: fixed
Keywords: auth | Triage Stage: Ready for
| checkin
Has patch: 1 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
-------------------------------------+-------------------------------------
Comment (by Jon Dufresne):
I've hit another snag with the `MIGRATION_MODULES = {'auth': None}`
approach. (Sorry, is it better to reopen this ticket or file a new one?)
The `auth.Permission` model has a fk on `ContentType`. Due to this, when
deleting a `ContentType` (such as with the `remove_stale_contenttypes`
command) queries against the missing `auth_permission` table can occur.
Not sure how best to handle this scenario. IIUC, as long as auth is in
`INSTALLED_APPS`, the models will be loaded and this FK will cause an
issue.
Here is a stack trace when deleting a stale content type
{{{
Traceback (most recent call last):
File "/usr/lib64/python3.5/runpy.py", line 170, in _run_module_as_main
"__main__", mod_spec)
File "/usr/lib64/python3.5/runpy.py", line 85, in _run_code
exec(code, run_globals)
File "/home/jon/devel/django/django/__main__.py", line 9, in <module>
management.execute_from_command_line()
File "/home/jon/devel/django/django/core/management/__init__.py", line
366, in execute_from_command_line
utility.execute()
File "/home/jon/devel/django/django/core/management/__init__.py", line
358, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/home/jon/devel/django/django/core/management/base.py", line 294,
in run_from_argv
self.execute(*args, **cmd_options)
File "/home/jon/devel/django/django/core/management/base.py", line 345,
in execute
output = self.handle(*args, **options)
File
"/home/jon/devel/django/django/contrib/contenttypes/management/commands/remove_stale_contenttypes.py",
line 46, in handle
collector.collect([ct])
File "/home/jon/devel/django/django/db/models/deletion.py", line 218, in
collect
elif sub_objs:
File "/home/jon/devel/django/django/db/models/query.py", line 260, in
__bool__
self._fetch_all()
File "/home/jon/devel/django/django/db/models/query.py", line 1072, in
_fetch_all
self._result_cache = list(self.iterator())
File "/home/jon/devel/django/django/db/models/query.py", line 54, in
__iter__
results = compiler.execute_sql()
File "/home/jon/devel/django/django/db/models/sql/compiler.py", line
847, in execute_sql
cursor.execute(sql, params)
File "/home/jon/devel/django/django/db/backends/utils.py", line 64, in
execute
return self.cursor.execute(sql, params)
File "/home/jon/devel/django/django/db/utils.py", line 94, in __exit__
six.reraise(dj_exc_type, dj_exc_value, traceback)
File "/home/jon/devel/django/django/utils/six.py", line 685, in reraise
raise value.with_traceback(tb)
File "/home/jon/devel/django/django/db/backends/utils.py", line 64, in
execute
return self.cursor.execute(sql, params)
File "/home/jon/devel/django/django/db/backends/sqlite3/base.py", line
334, in execute
return Database.Cursor.execute(self, query, params)
django.db.utils.OperationalError: no such table: auth_permission
}}}
--
Ticket URL: <https://code.djangoproject.com/ticket/26401#comment:19>
Django <https://code.djangoproject.com/>
The Web framework for perfectionists with deadlines.
--
You received this message because you are subscribed to the Google Groups
"Django updates" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to django-updates+unsubscr...@googlegroups.com.
To post to this group, send email to django-updates@googlegroups.com.
To view this discussion on the web visit
https://groups.google.com/d/msgid/django-updates/066.133c0faeea597d220ca22352c6932796%40djangoproject.com.
For more options, visit https://groups.google.com/d/optout.
