new_contents: # -*- coding: utf-8 -*-
  from __future__ import unicode_literals
  
  from django.db import migrations, models
  
  
  class Migration(migrations.Migration):
  
      dependencies = [
          ('geodata', '0017_auto_20160626_1809'),
      ]
  
      operations = [
          migrations.AddField(
              model_name='building',
              name='simple',
              field=models.BooleanField(default=False, verbose_name='simple building'),
          ),
      ]
  
subject: add corresponding migration