gistfile1.py

# RELATED_OBJECTS
class BaseRelatedModel(models.Model):
    name_base = models.CharField(max_length=10)


class FirstRelatingObject(models.Model):
    model_base_first = models.ForeignKey(BaseRelatedModel)


class FirstRelatingHiddenObject(models.Model):
    model_hidden_base_first = models.ForeignKey(BaseRelatedModel,
                                                related_name='+')


class RelatedModel(BaseRelatedModel):
    name = models.CharField(max_length=10)


class SecondRelatingObject(models.Model):
    model_base_second = models.ForeignKey(RelatedModel)


class SecondRelatingHiddenObject(models.Model):
    model_hidden_base_second = models.ForeignKey(RelatedModel,
                                                 related_name='+')


class RelatedModelProxy(RelatedModel):
    class Meta:
        proxy = True



ipdb> RelatedModelProxy._meta.get_all_related_objects()
[<RelatedObject: model_options:firstrelatingobject related to model_base_first>,
<RelatedObject: model_options:secondrelatingobject related to model_base_second>]

ipdb> RelatedModelProxy._meta.get_all_related_objects(include_proxy_eq=True)
[<RelatedObject: model_options:firstrelatingobject related to model_base_first>,
<RelatedObject: model_options:secondrelatingobject related to model_base_second>]