Opened 8 years ago

Closed 8 years ago

#15225 closed (invalid)

Using concrete model inheritance with OneToOneField(parent_link=True) seems to be ignored

Reported by: Jeremy Dunck Owned by: nobody
Component: Database layer (models, ORM) Version: 1.2
Severity: Keywords:
Cc: Triage Stage: Unreviewed
Has patch: no Needs documentation: no
Needs tests: no Patch needs improvement: no
Easy pickings: no UI/UX: no

Description (last modified by Jeremy Dunck)

This seems to be because local_fields is always blank in these lines from

        # Do the appropriate setup for any model parents.
        o2o_map = dict([(, f) for f in new_class._meta.local_fields
                if isinstance(f, OneToOneField)])

Which causes this elif branch to be taken:

                if base in o2o_map:
                    field = o2o_map[base]
                elif not is_proxy:
                    attr_name = '%s_ptr' % base._meta.module_name
                    field = OneToOneField(base, name=attr_name,
                            auto_created=True, parent_link=True)
                    new_class.add_to_class(attr_name, field)

This misses the point of parent_link.

I'll try to make a simple test case (for some value of "simple"), but can anyone verify? Kooky edge case, I know.

Change History (2)

comment:1 Changed 8 years ago by Jeremy Dunck

Description: modified (diff)

comment:2 Changed 8 years ago by Jeremy Dunck

Resolution: invalid
Status: newclosed

False alarm, I'm just an idiot.

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