# Generated by Django 6.0.2 on 2026-02-12 20:07

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


class Migration(migrations.Migration):

    initial = True

    dependencies = [
    ]

    operations = [
        migrations.CreateModel(
            name='Item',
            fields=[
                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
                ('designation', models.CharField(db_index=True, max_length=30, verbose_name='Децимальный номер')),
                ('title', models.CharField(max_length=100, verbose_name='Обозначение')),
                ('entity_type', models.CharField(choices=[('UNIT', 'Изделие'), ('ASSY', 'Сборка'), ('PART', 'Деталь'), ('STD', 'Стандартное изделие'), ('CPLX', 'Комплекс')], default='ASSY', max_length=4)),
                ('is_assembly', models.BooleanField(default=False, verbose_name='Сборка')),
                ('drawing', models.FileField(blank=True, null=True, upload_to='drawings/', verbose_name='Чертеж')),
            ],
            options={
                'verbose_name': 'Компонент',
                'verbose_name_plural': 'Компоненты',
            },
        ),
        migrations.CreateModel(
            name='BOMNode',
            fields=[
                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
                ('quantity', models.DecimalField(decimal_places=2, default=1, max_digits=10, verbose_name='Количество')),
                ('lft', models.PositiveIntegerField(editable=False)),
                ('rght', models.PositiveIntegerField(editable=False)),
                ('tree_id', models.PositiveIntegerField(db_index=True, editable=False)),
                ('level', models.PositiveIntegerField(editable=False)),
                ('parent', mptt.fields.TreeForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.CASCADE, related_name='children', to='bom_manager.bomnode')),
                ('item', mptt.fields.TreeForeignKey(on_delete=django.db.models.deletion.CASCADE, to='bom_manager.item')),
            ],
            options={
                'abstract': False,
            },
        ),
    ]