Same Classname and Fieldnames clash in edit inline

[Patrick Lauber <patrick.lauber@…>]

class Apple(models.Model):
     name = models.CharField()

class Orange(models.Model):
     one = models.ForeignKey(One,edit_inline=models.STACKED)
     description = models.TextField()

This will break the admin when you try to save an Apple. The error message is very obscure and not understandable and doesn't guide you to the real conflict.

[Karen Tracey <kmtracey@…>]

This fails long before trying to save an Apple. What you have included fails syncdb:

Traceback (most recent call last):
  File "manage.py", line 11, in <module>
    execute_manager(settings)
  File "/homedir/django/trunk/django/core/management/__init__.py", line 272, in execute_manager
    utility.execute()
  File "/homedir/django/trunk/django/core/management/__init__.py", line 219, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "/homedir/django/trunk/django/core/management/base.py", line 72, in run_from_argv
    self.execute(*args, **options.__dict__)
  File "/homedir/django/trunk/django/core/management/base.py", line 85, in execute
    self.validate()
  File "/homedir/django/trunk/django/core/management/base.py", line 112, in validate
    num_errors = get_validation_errors(s, app)
  File "/homedir/django/trunk/django/core/management/validation.py", line 28, in get_validation_errors
    for (app_name, error) in get_app_errors().items():
  File "/homedir/django/trunk/django/db/models/loading.py", line 128, in get_app_errors
    self._populate()
  File "/homedir/django/trunk/django/db/models/loading.py", line 57, in _populate
    self.load_app(app_name, True)
  File "/homedir/django/trunk/django/db/models/loading.py", line 72, in load_app
    mod = __import__(app_name, {}, {}, ['models'])
  File "/homedir/software/web/playground/../playground/apple/models.py", line 6, in <module>
    class Orange(models.Model):
  File "/homedir/software/web/playground/../playground/apple/models.py", line 7, in Orange
    one = models.ForeignKey(One,edit_inline=models.STACKED)
NameError: name 'One' is not defined

If I try to guess what you meant and change One to Apple then it still fails because you haven't included a max_length on the CharField plus there are no core=True fields in the inline-edited model. So since guessing isn't working out so well, please reopen with a copy of exactly what you have specified to cause the problem, preferably whittled down to as small an example as possible but not whittled so far that it doesn't work at all.