text: # Generated by Django 4.0 on 2022-01-04 13:43
  
  import django.core.validators
  from django.db import migrations, models
  import django.db.models.deletion
  
  
  class Migration(migrations.Migration):
  
      dependencies = [
          ('auth', '0012_alter_user_first_name_max_length'),
          ('bookapp', '0003_remove_opinion_username'),
      ]
  
      operations = [
          migrations.AddField(
              model_name='opinion',
              name='user',
              field=models.ForeignKey(default=1, on_delete=django.db.models.deletion.CASCADE, to='auth.user'),
              preserve_default=False,
          ),
          migrations.AlterField(
              model_name='book',
              name='isbn',
              field=models.BigIntegerField(default=None, validators=[django.core.validators.MaxValueValidator(9999999999999), django.core.validators.MinValueValidator(1000000000000)]),
          ),
      ]
  