from django.db import migrations, models


class Migration(migrations.Migration):

    dependencies = [
    ]

    forward = """
        CREATE OR REPLACE VIEW resumen AS
        SELECT g.name->>'es' AS modelo, COALESCE(COUNT(ri.resourceinstanceid),0) AS Cuenta 
        FROM graphs AS g LEFT JOIN resource_instances AS ri ON g.graphid = ri.graphid 
        WHERE g.isresource AND g.name ? 'es'
        GROUP BY g.name;
        """
    
    reverse = """
        DROP VIEW IF EXISTS resumen;
        DELETE FROM system_record;
        """

    operations = [
        migrations.CreateModel(
            name='SystemRecord',
            fields=[
                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
                ('state_details', models.JSONField(blank=True, null=True)),
                ('state_time', models.DateTimeField(auto_now_add=True)),
            ],
            options={
                'db_table': 'system_record',
                'managed': True,
            },
        ),
        migrations.RunSQL(forward, reverse),
    ]