Question

This question has been floating around in one shape or another, but I couldn’t find a definite answer to it.

Let’s say I have this:

class BaseModel(models.Model):
    base_field = models.CharField(max_length=10)

class ExtendedModelA(models.Model):
    extended_field_a = models.CharField(max_length=10)
    base = models.OneToOneField(BaseModel)

class ExtendedModelB(models.Model):
    extended_field_b = models.CharField(max_length=10)
    base = models.OneToOneField(BaseModel)

Question is, how do I make BaseModel field editable in admin interface when I click on either of ExtendedModel instances.

I know I can reference ExtendedModel as inline from Base, but that does not make much sense to me as I want to create ExtendedModelA/B who “inherit” stuff from Base.

Googling around I found a solution on DjangoSnippets, but that doesn’t work since 1.1+ and requires patch to Django which is ugly.

Is it very simple thing that everyone knows about but me, or noone does that at all??…

Answer 1

Try with multi table inheritance. It does what you want.