old_contents: # -*- coding: utf-8 -*-
  # Generated by Django 1.11.15 on 2018-09-07 07:31
  from __future__ import unicode_literals
  
  from django.db import migrations, models
  import django.db.models.deletion
  
  
  class Migration(migrations.Migration):
  
      dependencies = [
          ('core', '0004_add_core_translation_fields'),
          ('polls', '0004_add-polls-permissions-to-groups'),
      ]
  
      operations = [
          migrations.AddField(
              model_name='choice',
              name='language',
              field=models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.SET_NULL, to='core.SiteLanguage'),
          ),
          migrations.AddField(
              model_name='choice',
              name='translated_pages',
              field=models.ManyToManyField(blank=True, related_name='_choice_translated_pages_+', to='polls.Choice'),
          ),
          migrations.AddField(
              model_name='question',
              name='language',
              field=models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.SET_NULL, to='core.SiteLanguage'),
          ),
          migrations.AddField(
              model_name='question',
              name='translated_pages',
              field=models.ManyToManyField(blank=True, related_name='_question_translated_pages_+', to='polls.Question'),
          ),
      ]
  
new_contents: # -*- coding: utf-8 -*-
  # Generated by Django 1.11.15 on 2018-09-07 07:31
  from __future__ import unicode_literals
  
  from django.db import migrations, models
  import django.db.models.deletion
  
  
  class Migration(migrations.Migration):
  
      dependencies = [
          ('core', '0005_auto_20180906_0915'),
          ('polls', '0004_add-polls-permissions-to-groups'),
      ]
  
      operations = [
          migrations.AddField(
              model_name='choice',
              name='language',
              field=models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.SET_NULL, to='core.SiteLanguage'),
          ),
          migrations.AddField(
              model_name='choice',
              name='translated_pages',
              field=models.ManyToManyField(blank=True, related_name='_choice_translated_pages_+', to='polls.Choice'),
          ),
          migrations.AddField(
              model_name='question',
              name='language',
              field=models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.SET_NULL, to='core.SiteLanguage'),
          ),
          migrations.AddField(
              model_name='question',
              name='translated_pages',
              field=models.ManyToManyField(blank=True, related_name='_question_translated_pages_+', to='polls.Question'),
          ),
      ]
  
subject: update the migration file