new_contents: # -*- coding: utf-8 -*-
  from __future__ import unicode_literals
  
  from django.db import migrations
  from awx.main.migrations import _migration_utils as migration_utils
  
  
  def update_dashed_host_variables(apps, schema_editor):
      Host = apps.get_model('main', 'Host')
      for host in Host.objects.filter(variables='---'):
          host.variables = ''
          host.save()
  
  class Migration(migrations.Migration):
  
      dependencies = [
          ('main', '0032_v302_credential_permissions_update'),
      ]
  
      operations = [
          migrations.RunPython(migration_utils.set_current_apps_for_migrations),
          migrations.RunPython(update_dashed_host_variables),
      ]
  
subject: add host variable dash fix as a migration