Tracking model with FK to itself.

[SergeyKubrak]

I have an issue when add history to the model which looks like:

class SomeModel(models.Model):
   uuid = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False, unique=True)
   parent = models.ForeignKey('self')

History model was created, and it has field parent but has wrong type, integer instead of UUID. And I've had and exceptions because of that.

I did fast review and we can fix it by improving CustomHistoricalRecords#copy_fields. We should use django.db.models.fields.related.resolve_relation, and update code in next way::

def copy_fields(self, model):
    .
    .
    .
    field = FieldType(
                    resolve_relation(model, old_field.rel.to),
                    related_name='+',
                    null=True,
                    blank=True,
                    primary_key=False,
                    db_index=True,
                    serialize=True,
                    unique=False,
                    on_delete=models.DO_NOTHING,
                    **field_arguments
                )
    .
    .
    .

It helps me. I use django 1.11

[cloudsurf-digital]

👍

[joeig]

👍

[rossmechanic]

This was fixed in #319 and subsequently broken in #462. It was fixed again in #513 and is now explicitly tested, so I'm closing this issue.