new_contents: # Generated by Django 3.0.2 on 2020-02-23 11:12
  
  from django.conf import settings
  import django.core.validators
  from django.db import migrations, models
  import django.db.models.deletion
  
  
  class Migration(migrations.Migration):
  
      dependencies = [
          ('users', '0009_auto_20160227_1656'),
      ]
  
      operations = [
          migrations.CreateModel(
              name='CocRecord',
              fields=[
                  ('user', models.OneToOneField(on_delete=django.db.models.deletion.CASCADE, primary_key=True, serialize=False, to=settings.AUTH_USER_MODEL, verbose_name='user')),
                  ('coc_version', models.CharField(max_length=15, validators=[django.core.validators.RegexValidator('^202[\\d].[\\d]+$', 'Not a valid CoC version')], verbose_name='latest agreed CoC version')),
              ],
          ),
      ]
  
subject: Add migration file for the model of CoC record