# Generated by Django 4.2.16 on 2026-04-29 08:57

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


class Migration(migrations.Migration):

    initial = True

    dependencies = [
    ]

    operations = [
        migrations.CreateModel(
            name='BusinessArea',
            fields=[
                ('id', models.UUIDField(default=uuid.uuid4, editable=False, primary_key=True, serialize=False)),
                ('created_at', models.DateTimeField(auto_now_add=True, db_index=True)),
                ('updated_at', models.DateTimeField(auto_now=True)),
                ('name', models.CharField(max_length=100)),
                ('sort_order', models.IntegerField(default=0)),
                ('latitude', models.DecimalField(blank=True, decimal_places=7, max_digits=10, null=True)),
                ('longitude', models.DecimalField(blank=True, decimal_places=7, max_digits=10, null=True)),
                ('is_active', models.BooleanField(default=True)),
            ],
            options={
                'db_table': 'business_areas',
                'ordering': ['district_id', 'sort_order', 'name'],
            },
        ),
        migrations.CreateModel(
            name='District',
            fields=[
                ('id', models.UUIDField(default=uuid.uuid4, editable=False, primary_key=True, serialize=False)),
                ('created_at', models.DateTimeField(auto_now_add=True, db_index=True)),
                ('updated_at', models.DateTimeField(auto_now=True)),
                ('city', models.CharField(max_length=50)),
                ('name', models.CharField(max_length=50)),
                ('short_name', models.CharField(blank=True, default='', max_length=20)),
                ('sort_order', models.IntegerField(default=0)),
                ('is_active', models.BooleanField(default=True)),
            ],
            options={
                'db_table': 'districts',
                'ordering': ['city', 'sort_order', 'name'],
            },
        ),
        migrations.CreateModel(
            name='MetroLine',
            fields=[
                ('id', models.UUIDField(default=uuid.uuid4, editable=False, primary_key=True, serialize=False)),
                ('created_at', models.DateTimeField(auto_now_add=True, db_index=True)),
                ('updated_at', models.DateTimeField(auto_now=True)),
                ('city', models.CharField(max_length=50)),
                ('name', models.CharField(max_length=50)),
                ('color', models.CharField(blank=True, default='', max_length=7)),
                ('sort_order', models.IntegerField(default=0)),
                ('is_active', models.BooleanField(default=True)),
            ],
            options={
                'db_table': 'metro_lines',
                'ordering': ['city', 'sort_order', 'name'],
            },
        ),
        migrations.CreateModel(
            name='School',
            fields=[
                ('id', models.UUIDField(default=uuid.uuid4, editable=False, primary_key=True, serialize=False)),
                ('created_at', models.DateTimeField(auto_now_add=True, db_index=True)),
                ('updated_at', models.DateTimeField(auto_now=True)),
                ('name', models.CharField(max_length=100)),
                ('type', models.CharField(blank=True, choices=[('primary', '小学'), ('middle', '初中'), ('high', '高中'), ('k9', '九年一贯制'), ('k12', '十二年一贯制')], default='', max_length=20)),
                ('nature', models.CharField(blank=True, choices=[('public', '公立'), ('private', '私立'), ('international', '国际')], default='', max_length=20)),
                ('level', models.CharField(blank=True, choices=[('normal', '普通'), ('key', '重点'), ('top', '名校')], default='', max_length=20)),
                ('is_active', models.BooleanField(default=True)),
                ('district', models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.SET_NULL, related_name='schools', to='region.district')),
            ],
            options={
                'db_table': 'schools',
                'ordering': ['name'],
            },
        ),
        migrations.CreateModel(
            name='MetroStation',
            fields=[
                ('id', models.UUIDField(default=uuid.uuid4, editable=False, primary_key=True, serialize=False)),
                ('created_at', models.DateTimeField(auto_now_add=True, db_index=True)),
                ('updated_at', models.DateTimeField(auto_now=True)),
                ('name', models.CharField(max_length=50)),
                ('latitude', models.DecimalField(blank=True, decimal_places=7, max_digits=10, null=True)),
                ('longitude', models.DecimalField(blank=True, decimal_places=7, max_digits=10, null=True)),
                ('sort_order', models.IntegerField(default=0)),
                ('is_active', models.BooleanField(default=True)),
                ('metro_line', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='stations', to='region.metroline')),
            ],
            options={
                'db_table': 'metro_stations',
                'ordering': ['metro_line_id', 'sort_order'],
            },
        ),
        migrations.AddConstraint(
            model_name='district',
            constraint=models.UniqueConstraint(condition=models.Q(('is_active', True)), fields=('city', 'name'), name='uq_districts_city_name'),
        ),
        migrations.AddField(
            model_name='businessarea',
            name='district',
            field=models.ForeignKey(on_delete=django.db.models.deletion.PROTECT, related_name='business_areas', to='region.district'),
        ),
        migrations.AddIndex(
            model_name='school',
            index=models.Index(condition=models.Q(('is_active', True)), fields=['district'], name='idx_schools_district'),
        ),
        migrations.AddIndex(
            model_name='metrostation',
            index=models.Index(condition=models.Q(('is_active', True)), fields=['metro_line'], name='idx_metro_stations_line'),
        ),
        migrations.AddIndex(
            model_name='businessarea',
            index=models.Index(condition=models.Q(('is_active', True)), fields=['district'], name='idx_business_areas_district'),
        ),
        migrations.AddConstraint(
            model_name='businessarea',
            constraint=models.UniqueConstraint(fields=('district', 'name'), name='uq_business_areas_name'),
        ),
    ]