new_contents: # -*- coding: utf-8 -*-
  import datetime
  from south.db import db
  from south.v2 import SchemaMigration
  from django.db import models
  
  
  class Migration(SchemaMigration):
  
      def forwards(self, orm):
          # Adding index on 'Submission', fields ['lms_callback_url']
          db.create_index('queue_submission', ['lms_callback_url'])
  
          # Adding index on 'Submission', fields ['queue_name']
          db.create_index('queue_submission', ['queue_name'])
  
          # Adding index on 'Submission', fields ['retired']
          db.create_index('queue_submission', ['retired'])
  
  
      def backwards(self, orm):
          # Removing index on 'Submission', fields ['retired']
          db.delete_index('queue_submission', ['retired'])
  
          # Removing index on 'Submission', fields ['queue_name']
          db.delete_index('queue_submission', ['queue_name'])
  
          # Removing index on 'Submission', fields ['lms_callback_url']
          db.delete_index('queue_submission', ['lms_callback_url'])
  
  
      models = {
          'queue.submission': {
              'Meta': {'object_name': 'Submission'},
              'arrival_time': ('django.db.models.fields.DateTimeField', [], {'auto_now': 'True', 'blank': 'True'}),
              'grader_id': ('django.db.models.fields.CharField', [], {'max_length': '128'}),
              'grader_reply': ('django.db.models.fields.TextField', [], {}),
              'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
              'lms_ack': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
              'lms_callback_url': ('django.db.models.fields.CharField', [], {'max_length': '128', 'db_index': 'True'}),
              'num_failures': ('django.db.models.fields.IntegerField', [], {'default': '0'}),
              'pull_time': ('django.db.models.fields.DateTimeField', [], {'null': 'True', 'blank': 'True'}),
              'pullkey': ('django.db.models.fields.CharField', [], {'max_length': '128'}),
              'push_time': ('django.db.models.fields.DateTimeField', [], {'null': 'True', 'blank': 'True'}),
              'queue_name': ('django.db.models.fields.CharField', [], {'max_length': '128', 'db_index': 'True'}),
              'requester_id': ('django.db.models.fields.CharField', [], {'max_length': '128'}),
              'retired': ('django.db.models.fields.BooleanField', [], {'default': 'False', 'db_index': 'True'}),
              'return_time': ('django.db.models.fields.DateTimeField', [], {'null': 'True', 'blank': 'True'}),
              's3_keys': ('django.db.models.fields.CharField', [], {'max_length': '1024'}),
              's3_urls': ('django.db.models.fields.CharField', [], {'max_length': '1024'}),
              'xqueue_body': ('django.db.models.fields.TextField', [], {}),
              'xqueue_header': ('django.db.models.fields.CharField', [], {'max_length': '1024'})
          }
      }
  
      complete_apps = ['queue']
subject: Add migration file that I accidentally forgot.