desec-stack/api/desecapi/migrations/0006_cname_exclusivity.py

# Generated by Django 3.1 on 2020-09-18 16:09

import django.contrib.postgres.constraints
from django.contrib.postgres.operations import BtreeGistExtension
from django.db import migrations, models
import django.db.models.expressions


class Migration(migrations.Migration):
    dependencies = [
        ("desecapi", "0005_subname_validation"),
    ]

    operations = [
        BtreeGistExtension(),
        migrations.AddConstraint(
            model_name="rrset",
            constraint=django.contrib.postgres.constraints.ExclusionConstraint(
                expressions=[
                    ("domain", "="),
                    ("subname", "="),
                    (
                        django.db.models.expressions.RawSQL("int4(type = 'CNAME')", ()),
                        "<>",
                    ),
                ],
                name="cname_exclusivity",
            ),
        ),
    ]