id	summary	reporter	owner	description	type	status	component	version	severity	resolution	keywords	cc	stage	has_patch	needs_docs	needs_tests	needs_better_patch	easy	ui_ux
23160	KeyError when performing a RenameModel migration operation for a model with self-referential FK field	whitews@…	Simon Charette	"I'm simply trying to rename a model which has a relationship to itself. Running the RenameModel operation yields the following traceback:

{{{
$ python manage.py migrate myapp
Operations to perform:
  Apply all migrations: myapp
Running migrations:
  Applying myapp.0002_rename_Foo_to_Bar...Traceback (most recent call last):
  File ""manage.py"", line 10, in <module>
    execute_from_command_line(sys.argv)
  File ""/usr/local/lib/python2.7/dist-packages/Django-1.7c2-py2.7.egg/django/core/management/__init__.py"", line 385, in execute_from_command_line
    utility.execute()
  File ""/usr/local/lib/python2.7/dist-packages/Django-1.7c2-py2.7.egg/django/core/management/__init__.py"", line 377, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File ""/usr/local/lib/python2.7/dist-packages/Django-1.7c2-py2.7.egg/django/core/management/base.py"", line 288, in run_from_argv
    self.execute(*args, **options.__dict__)
  File ""/usr/local/lib/python2.7/dist-packages/Django-1.7c2-py2.7.egg/django/core/management/base.py"", line 338, in execute
    output = self.handle(*args, **options)
  File ""/usr/local/lib/python2.7/dist-packages/Django-1.7c2-py2.7.egg/django/core/management/commands/migrate.py"", line 160, in handle
    executor.migrate(targets, plan, fake=options.get(""fake"", False))
  File ""/usr/local/lib/python2.7/dist-packages/Django-1.7c2-py2.7.egg/django/db/migrations/executor.py"", line 63, in migrate
    self.apply_migration(migration, fake=fake)
  File ""/usr/local/lib/python2.7/dist-packages/Django-1.7c2-py2.7.egg/django/db/migrations/executor.py"", line 91, in apply_migration
    if self.detect_soft_applied(migration):
  File ""/usr/local/lib/python2.7/dist-packages/Django-1.7c2-py2.7.egg/django/db/migrations/executor.py"", line 134, in detect_soft_applied
    project_state = self.loader.project_state((migration.app_label, migration.name), at_end=True)
  File ""/usr/local/lib/python2.7/dist-packages/Django-1.7c2-py2.7.egg/django/db/migrations/loader.py"", line 268, in project_state
    return self.graph.make_state(nodes=nodes, at_end=at_end, real_apps=list(self.unmigrated_apps))
  File ""/usr/local/lib/python2.7/dist-packages/Django-1.7c2-py2.7.egg/django/db/migrations/graph.py"", line 147, in make_state
    project_state = self.nodes[node].mutate_state(project_state)
  File ""/usr/local/lib/python2.7/dist-packages/Django-1.7c2-py2.7.egg/django/db/migrations/migration.py"", line 76, in mutate_state
    operation.state_forwards(self.app_label, new_state)
  File ""/usr/local/lib/python2.7/dist-packages/Django-1.7c2-py2.7.egg/django/db/migrations/operations/models.py"", line 132, in state_forwards
    for name, field in state.models[related_key].fields:
KeyError: ('myapp', 'foo')
}}}
"	Bug	closed	Migrations	1.7-rc-2	Release blocker	fixed			Ready for checkin	1	0	0	0	0	0