new_contents: from django.db import migrations
  
  from resolwe.flow.utils.iterators import iterate_schema
  
  
  def migrate_star_downstream_processes(apps, schema_editor):
      """Migrate schemas of processes that use alignment-star as input."""
      Process = apps.get_model("flow", "Process")
  
      for process in Process.objects.all():
          for schema, _, _ in iterate_schema({}, process.input_schema):
              if schema["type"] == "data:genomeindex:star:":
                  schema["type"] = "data:index:star:"
                  process.save()
  
  
  class Migration(migrations.Migration):
      """Migrate schemas of processes that use alignment-star as input."""
  
      dependencies = [
          ("resolwe_bio", "0013_star_index"),
      ]
  
      operations = [
          migrations.RunPython(migrate_star_downstream_processes),
      ]
  
subject: Migrate inputs of all star-index related processes