InlineModelAdmin breaks in the latest revision 9650

[shilin]

I've defined two models like this:

class Parent(models.Model):    
    name = models.CharField(max_length = 128, db_index = True)    

class Child(models.Model):    
    parent = models.ForeignKey(Parent, related_name = 'child_set', editable = False)
    name = models.CharField(max_length = 30, blank = True)    

And in admin.py, I tried to edit the Child object related to the certain Parent object.

class ChildInline(admin.StackedInline):
    model = Child
    extra = 10

class ParentAdmin(admin.ModelAdmin):    
    inlines = [
       ChildInline,     
    ]

site.register(Parent, ParentAdmin)

However, the admin application shows something like below:

KeyError at /admin/object/object/add/

'object'

The line of code which throws the exception is

C:\Python24\lib\site-packages\django\forms\models.py in add_fields

 487. return save_instance(form, new_obj, exclude=[self._pk_field.name], commit=commit)
 488.
 489. def add_fields(self, form, index):
 490. super(BaseInlineFormSet, self).add_fields(form, index)
 491. if self._pk_field == self.fk:
 492. form.fields[self._pk_field.name] = InlineForeignKeyField(self.instance, pk_field=True)
 493. else:

 >>>This Line>>> 494. form.fields[self.fk.name] = InlineForeignKeyField(self.instance, label=form.fields[self.fk.name].label) ...

I've tried to revert my Django to revision 9160, the same model and admin settings do not throw the same exception. It's like that the foreignkey field leads to this error.
But I'm quite confused about it.

[shilin]

My mistake
The error should be

KeyError at /admin/object/object/add/

'parent'

[django_banjo]

This error also happens with inlineformset_factory() if a model's field has editable=False or if it's used with formset = MyFormSet(... exclude=('some_field')).

[(none)]

Milestone post-1.0 deleted

[Keith Bussell]

Note to self: something broke in r9297

[Keith Bussell]

Stand-alone django test case exhibiting the problem

[jkocherhans]

(In [10239]) Fixed #9863. A ForeignKey with editable=False to the parent in an inline no longer raises an exception. Thanks to keithb for the test case and Alex Gaynor for the patch.

[jkocherhans]

(In [10287]) [1.0.X] Fixed #9863. A ForeignKey with editable=False to the parent in an inline no longer raises an exception. Thanks to keithb for the test case and Alex Gaynor for the patch. Backport of r10239 from trunk.

[Jacob]

Milestone 1.1 deleted