content: from django.db import migrations, models
  
  
  def update_content_types(apps, schema_editor):
      ObjectType = apps.get_model('core', 'ObjectType')
      ObjectPermission = apps.get_model('users', 'ObjectPermission')
      db_alias = schema_editor.connection.alias
  
      auth_group_ct = ObjectType.objects.using(db_alias).filter(app_label='auth', model='group').first()
      users_group_ct = ObjectType.objects.using(db_alias).filter(app_label='users', model='group').first()
      if auth_group_ct and users_group_ct:
          perms = ObjectPermission.objects.using(db_alias).filter(object_types__in=[auth_group_ct])
          for perm in perms:
              perm.object_types.remove(auth_group_ct)
              perm.object_types.add(users_group_ct)
              perm.save()
  
  
  class Migration(migrations.Migration):
      dependencies = [
          ('users', '0008_flip_objectpermission_assignments'),
      ]
  
      operations = [
          # Update ContentTypes
          migrations.RunPython(code=update_content_types, reverse_code=migrations.RunPython.noop),
          migrations.AlterField(
              model_name='objectpermission',
              name='object_types',
              field=models.ManyToManyField(related_name='object_permissions', to='core.objecttype'),
          ),
      ]
  