ticket #6755 closed: Model Inheritance doesn't work in the admin.

[Andre Meyer]

hi all

wow, ticket #6755 <http://code.djangoproject.com/ticket/6755> is closed!

so, just tried it out and got an error, oh my dear!

is it me or is there still a problem? here is the code (simplified)


*model.py*

class Item(models.Model):
    pass

class Note(models.Model):
    text = models.TextField(null=True, blank=True)

class Dossier(Item):
    pass

class Action(Item):
    pass

*admin.py*

class NoteInline(admin.StackedInline):
    model = Note
    extra = 1

class ItemOptions(admin.ModelAdmin):
    model = Item
    inlines = [NoteInline]

class DossierOptions(admin.ModelAdmin):
    model = Dossier
    inlines = [NoteInline]

class ActionOptions(admin.ModelAdmin):
    model = Action
    inlines = [NoteInline]

admin.site.register(Note)
admin.site.register(Item, ItemOptions)
admin.site.register(Dossier, DossierOptions)
admin.site.register(Action, ActionOptions)

*result when viewing a dossier in admin (running trunk 1.0-alpha-SVN-8052)
*
Exception at /admin/dossiers/dossier/37/ <class
'mysite.dossiers.models.Note'> has no ForeignKey to <class
'mysite.dossiers.models.Dossier'> Request Method: GET  Request URL:
http://localhost:8888/admin/dossiers/dossier/37/  Exception Type:
Exception  Exception
Value: <class 'mysite.dossiers.models.Note'> has no ForeignKey to <class
'mysite.dossiers.models.Dossier'>  Exception Location:
c:\usr\django\trunk\django\forms\models.py
in _get_foreign_key, line 453
the same happens with Action, but it does work with Item, of course.

somehow the notes property is not inherited properly. it does exist when
accessing it in the shell, though:

>>> from mysite.dossiers.models import *
>>> d = Dossier.objects.get(dossier_number=42)
>>> d.notes
<django.db.models.fields.related.RelatedManager object at 0x01209730>
>>>

what's happening here?

thanks
André

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