new_contents: # -*- coding: utf-8 -*-
  # Generated by Django 1.10 on 2017-07-05 22:01
  from __future__ import unicode_literals
  
  import django.core.validators
  from django.db import migrations, models
  import django.db.models.deletion
  import re
  
  
  class Migration(migrations.Migration):
  
      dependencies = [
          ('app', '0013_auto_20170705_2007'),
      ]
  
      operations = [
          migrations.CreateModel(
              name='PickAssociationRules',
              fields=[
                  ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
                  ('hero_bundle', models.CharField(max_length=255, validators=[django.core.validators.RegexValidator(re.compile('^\\d+(?:\\,\\d+)*\\Z', 32), code='invalid', message='Enter only digits separated by commas.')])),
                  ('bundle_size', models.IntegerField(default=1)),
                  ('support', models.FloatField(default=0.0)),
                  ('patch_statistics', models.ForeignKey(on_delete=django.db.models.deletion.PROTECT, related_name='pick_rules', to='app.PatchStatistics')),
              ],
          ),
      ]
  
subject: add migrationfor pick association rules