Ticket #29345: 0001_initial.py

# Generated by Django 2.0.4 on 2018-04-20 12:44

from django.db import migrations, models
import django.db.models.deletion


class Migration(migrations.Migration):

    initial = True

    dependencies = [
    ]

    operations = [
        # Creates the table `testschema.migration_app_test`
        migrations.CreateModel(
            name='Test',
            fields=[
                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
            ],
        ),

        # Creates the table `testschema.migration_app_testref` with foregin key constraint:
        # "migration_app_testref_test_id_bce0807a_fk_migration_app_test_id" FOREIGN KEY (test_id) REFERENCES migration_app_test(id) DEFERRABLE INITIALLY DEFERRED
        migrations.CreateModel(
            name='TestRef',
            fields=[
                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
                ('test', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='migration_app.Test')),
            ],
        ),

        # Changes type of `id` column in `testschema.migration_app_test`.
        # Fails to delete old foreign key constraint `migration_app_testref_test_id_bce0807a_fk_migration_app_test_id`.
        # Also adds a new constraint:
        # "migration_app_testref_test_id_bce0807a_fk" FOREIGN KEY (test_id) REFERENCES migration_app_test(id) DEFERRABLE INITIALLY DEFERRED
        # This leaves us with two identical constraints on this table.
        migrations.AlterField(
            model_name='test',
            name='id',
            field=models.BigAutoField(primary_key=True, serialize=False),
        ),

        # Changes type of `id` column in `testschema.migration_app_test`.
        # Fails to delete the two foreign key constraints.
        # Fails with exception when trying to recreate the constraints:
        #   django.db.utils.ProgrammingError: constraint "migration_app_testref_test_id_bce0807a_fk" for relation "migration_app_testref" already exists
        migrations.AlterField(
            model_name='test',
            name='id',
            field=models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID'),
        ),
    ]