Hi,
I have a bit of a problem with inherited reverse relations and django model
inheritance. Consider these models:
class Content(models.Model):
display = models.BooleanField()
class Link(Content):
url = models.URLField()
class Teaser(Content):
text = models.TextField()
link = models.URLField()
As we all know, Django uses an implicit OneToOneField for model
inheritance. This OneToOneField generates accessors for the reverse
relation, which in this case means that objects of the type Content will
have a "link" and a "teaser" attribute to access the other side of the
one-to-one relation. These attributes are, of course, inherited to the
Content subclasses, meaning that Link and Teaser also will have those
accessors. But wait, Teaser already defines a link attribute! We got
ourselves a nice little name clash.
While it's perfectly according to the rules of inheritance for Link and
Teaser to inherit the "link" and "teaser" reverse relations accessors, it
is also a bit nonsensical in this case. As far as I can tell, it's not
possible to suppress the creation of these accessors when defining the
model inheritance. Any ideas how to get around this (other than "just
rename the link attribute in Teaser, silly!")?
Benjamin
P.S.: the real use case here is django CMS, with its content plugins all
inheriting from a CMSPlugin base class. Since there are e.g. subclasses
called Text, Link, and Picture, it's not possible to use field names called
"text", "link", or "picture" in a CMSPlugin subclass, which is frustrating
and hard to explain to our users.
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