Form fields for ModelForm with inherited models

Question

I have a abstract model that defines some fields, and other models that inherited from it. And if i define a form for this model, base fields not defined and i cannot use it in form.

If i specify it with fields i get this error:

Exception Value: Unknown field(s) (created_at, updated_at) specified for Reseller

Exception Location: C:\Python27\lib\site-packages\django\forms\models.py in new, line 215

Here my code:

class BaseModel(models.Model):
    created_at = models.DateTimeField(default=datetime.now, editable=False)
    updated_at = models.DateTimeField(auto_now=True)
    class Meta:
        abstract = True

class Reseller(BaseModel): name = models.CharField(_("name"), max_length=255, unique=True)

class ResellerForm(forms.ModelForm): class Meta: model = Reseller fields = ('name','created_at','updated_at')

UPD

Its clearly reproduceble with new empty project with this three classes. Its failing on form import

 from jjj.forms import ResellerForm
Traceback (most recent call last):
  File "", line 1, in 
  File "C:\Users\ShapeR\PycharmProjects\djt\jjj\forms.py", line 4, in 
    class ResellerForm(forms.ModelForm):
  File "C:\Python27\lib\site-packages\django\forms\models.py", line 214, in __new__
    raise FieldError(message)
FieldError: Unknown field(s) (created_at, updated_at) specified for Reseller

Answer 1

created_at = models.DateTimeField(default=datetime.now, editable=False)
updated_at = models.DateTimeField(auto_now=True)

http://docs.djangoproject.com/en/dev/ref/models/fields/#editable

Field.editable

If False, the field will not be editable in the admin or via forms automatically generated from the model class. Default is True.

also

Note

As currently implemented, setting auto_now or auto_now_add to True will cause the field to have editable=False and blank=True set.