xversion.py 文件源码

def get_related_versions(self, obj, version, formset):
        """Retreives all the related Version objects for the given FormSet."""
        object_id = obj.pk
        # Get the fk name.
        try:
            fk_name = formset.fk.name + '_' + formset.fk.rel.get_related_field().name
        except AttributeError:
            # This is a GenericInlineFormset, or similar.
            fk_name = formset.ct_fk_field.name
        # Look up the revision data.
        revision_versions = version.revision.version_set.all()
        related_versions = dict([(related_version.object_id, related_version)
                                 for related_version in revision_versions
                                 if ContentType.objects.get_for_id(related_version.content_type_id).model_class() == formset.model
                                 and smart_text(related_version.field_dict[fk_name]) == smart_text(object_id)])
        return related_versions