new_contents: # -*- coding: utf-8 -*-
  from __future__ import unicode_literals
  
  from django.db import migrations, models
  import django.db.models.deletion
  import mptt.fields
  
  
  class Migration(migrations.Migration):
  
      dependencies = [
          ('events', '0021_auto_20160217_1832'),
      ]
  
      operations = [
          migrations.AlterModelManagers(
              name='event',
              managers=[
              ],
          ),
          migrations.AlterModelManagers(
              name='place',
              managers=[
              ],
          ),
          migrations.AlterField(
              model_name='event',
              name='image',
              field=models.ForeignKey(verbose_name='Image', blank=True, to='events.Image', null=True, on_delete=django.db.models.deletion.SET_NULL),
          ),
          migrations.AlterField(
              model_name='event',
              name='location',
              field=models.ForeignKey(blank=True, to='events.Place', null=True, on_delete=django.db.models.deletion.PROTECT),
          ),
          migrations.AlterField(
              model_name='event',
              name='publisher',
              field=models.ForeignKey(verbose_name='Publisher', to='events.Organization', related_name='published_events', on_delete=django.db.models.deletion.PROTECT),
          ),
          migrations.AlterField(
              model_name='event',
              name='super_event',
              field=mptt.fields.TreeForeignKey(blank=True, to='events.Event', related_name='sub_events', null=True, on_delete=django.db.models.deletion.SET_NULL),
          ),
          migrations.AlterField(
              model_name='keyword',
              name='image',
              field=models.ForeignKey(verbose_name='Image', blank=True, to='events.Image', null=True, on_delete=django.db.models.deletion.SET_NULL),
          ),
          migrations.AlterField(
              model_name='keywordset',
              name='image',
              field=models.ForeignKey(verbose_name='Image', blank=True, to='events.Image', null=True, on_delete=django.db.models.deletion.SET_NULL),
          ),
          migrations.AlterField(
              model_name='organization',
              name='image',
              field=models.ForeignKey(verbose_name='Image', blank=True, to='events.Image', null=True, on_delete=django.db.models.deletion.SET_NULL),
          ),
          migrations.AlterField(
              model_name='place',
              name='image',
              field=models.ForeignKey(verbose_name='Image', blank=True, to='events.Image', null=True, on_delete=django.db.models.deletion.SET_NULL),
          ),
      ]
  
subject: Add a migration for earlier changes