django-reversion-compare

[bckohan]

This is from older documentation that may no longer be relevant.

You may need to tweak your admin class to get it to work with django-reversion-compare:

    def compare_view(self, request, object_id, extra_context=None):
        """Redirect the reversion-compare view to the child admin."""
        real_admin = self._get_real_admin(object_id)
        return real_admin.compare_view(request, object_id, extra_context=extra_context)

As the compare view resolves the the parent admin, it uses it's base model to find revisions.
This doesn't work, since it needs to look for revisions of the child model. Using this tweak,
the view of the actual child model is used, similar to the way the regular change and delete views
are redirected.