new_contents: # -*- coding: utf-8 -*-
  from __future__ import unicode_literals
  
  from django.core.management import call_command
  from django.db import migrations, models
  
  
  def update_search_index(apps, schema):
      print("Updating search field...")
      call_command("update_search_field", "opendebates")
      print("Updating search field...done")
  
  
  def no_op(apps, schema):
      pass
  
  
  class Migration(migrations.Migration):
  
      dependencies = [
          ('opendebates', '0016_auto_20160212_1940'),
      ]
  
      operations = [
          migrations.RunSQL(
              """
              CREATE EXTENSION IF NOT EXISTS unaccent;
              ALTER FUNCTION unaccent(text) IMMUTABLE;
              -- The next line doesn't work:
              -- CREATE INDEX opendebates_submission_search_idx ON opendebates_submission USING gin(to_tsvector('english', search_index));
              """,
  
              """
              DROP EXTENSION IF EXISTS unaccent;
              DROP INDEX IF EXISTS opendebates_submission_search_idx;
              """
          ),
          migrations.RunPython(
              update_search_index,
              no_op
          )
      ]
  
subject: Add a migration for unaccent