text: from django.db import migrations, models
  import django.db.models.deletion
  from ...metadata import lookup
  
  
  def forwards_func(apps, schema_editor):
      # copy cities into jurisdiction ids
      Person = apps.get_model("data", "Person")
  
      for p in Person.objects.exclude(current_state=""):
          p.current_jurisdiction_id = lookup(abbr=p.current_state).jurisdiction_id
          p.save()
  
  
  class Migration(migrations.Migration):
  
      dependencies = [("data", "0010_auto_20200721_1604")]
  
      operations = [
          migrations.AddField(
              model_name="person",
              name="current_jurisdiction",
              field=models.ForeignKey(
                  default=None,
                  null=True,
                  on_delete=django.db.models.deletion.PROTECT,
                  related_name="current_people",
                  to="data.Jurisdiction",
              ),
          ),
          migrations.RunPython(forwards_func),
      ]
  