#22485: makemigrations fails with dependencies to unmigrated apps
-------------------------------------+-------------------------------------
Reporter: apollo13 | Owner: nobody
Type: Bug | Status: new
Component: | Version: master
Migrations | Keywords: migrations,
Severity: Release | unmigrated, makemigrations
blocker | Has patch: 0
Triage Stage: Accepted | Needs tests: 0
Needs documentation: 0 | Easy pickings: 0
Patch needs improvement: 0 |
UI/UX: 0 |
-------------------------------------+-------------------------------------
Download the attached sample project and run ''manage.py makemigrations'':
{{{
Traceback (most recent call last):
File "./manage.py", line 10, in <module>
execute_from_command_line(sys.argv)
File
"/home/florian/sources/django.git/django/core/management/__init__.py",
line 427, in execute_from_command_line
utility.execute()
File
"/home/florian/sources/django.git/django/core/management/__init__.py",
line 419, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/home/florian/sources/django.git/django/core/management/base.py",
line 288, in run_from_argv
self.execute(*args, **options.__dict__)
File "/home/florian/sources/django.git/django/core/management/base.py",
line 337, in execute
output = self.handle(*args, **options)
File
"/home/florian/sources/django.git/django/core/management/commands/makemigrations.py",
line 99, in handle
changes = autodetector.changes(graph=loader.graph,
trim_to_apps=app_labels or None)
File
"/home/florian/sources/django.git/django/db/migrations/autodetector.py",
line 33, in changes
changes = self._detect_changes()
File
"/home/florian/sources/django.git/django/db/migrations/autodetector.py",
line 50, in _detect_changes
old_apps = self.from_state.render()
File "/home/florian/sources/django.git/django/db/migrations/state.py",
line 63, in render
model=dangling_lookup[0]))
ValueError: Lookup failed for model referenced by field
migrationtest.Test.user: auth.User
}}}
This is caused by
https://github.com/django/django/commit/956bd644249337b9467c017aac4eec228dde8c5d
(see the comments there) -- not sure if this is the actual cause or rather
https://github.com/django/django/commit/2085f53f567f7619ecf3eab93fdacab7a5991a11
due to missing tests.
--
Ticket URL: <https://code.djangoproject.com/ticket/22485>
Django <https://code.djangoproject.com/>
The Web framework for perfectionists with deadlines.
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