Logic/Modules/Backend/farm_hub/migrations/0001_initial.py

# Generated by Django 5.2.12 on 2026-03-19 15:01

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


class Migration(migrations.Migration):
    initial = True

    dependencies = [
        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
    ]

    operations = [
        migrations.CreateModel(
            name="FarmType",
            fields=[
                ("id", models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name="ID")),
                ("uuid", models.UUIDField(db_index=True, default=uuid.uuid4, editable=False, unique=True)),
                ("name", models.CharField(db_index=True, max_length=255, unique=True)),
                ("description", models.TextField(blank=True, default="")),
                ("metadata", models.JSONField(blank=True, default=dict)),
                ("created_at", models.DateTimeField(auto_now_add=True)),
                ("updated_at", models.DateTimeField(auto_now=True)),
            ],
            options={
                "db_table": "farm_types",
                "ordering": ["name"],
            },
        ),
        migrations.CreateModel(
            name="FarmHub",
            fields=[
                ("id", models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name="ID")),
                ("farm_uuid", models.UUIDField(db_index=True, default=uuid.uuid4, editable=False, unique=True)),
                ("name", models.CharField(max_length=255)),
                ("is_active", models.BooleanField(default=True)),
                ("customization", models.JSONField(blank=True, default=dict)),
                ("created_at", models.DateTimeField(auto_now_add=True)),
                ("updated_at", models.DateTimeField(auto_now=True)),
                (
                    "farm_type",
                    models.ForeignKey(
                        on_delete=django.db.models.deletion.PROTECT,
                        related_name="farms",
                        to="farm_hub.farmtype",
                    ),
                ),
                (
                    "owner",
                    models.ForeignKey(
                        on_delete=django.db.models.deletion.CASCADE,
                        related_name="farm_hubs",
                        to=settings.AUTH_USER_MODEL,
                    ),
                ),
            ],
            options={
                "db_table": "farm_hubs",
                "ordering": ["-created_at"],
            },
        ),
        migrations.CreateModel(
            name="Product",
            fields=[
                ("id", models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name="ID")),
                ("uuid", models.UUIDField(db_index=True, default=uuid.uuid4, editable=False, unique=True)),
                ("name", models.CharField(db_index=True, max_length=255)),
                ("description", models.TextField(blank=True, default="")),
                ("metadata", models.JSONField(blank=True, default=dict)),
                ("created_at", models.DateTimeField(auto_now_add=True)),
                ("updated_at", models.DateTimeField(auto_now=True)),
                (
                    "farm_type",
                    models.ForeignKey(
                        on_delete=django.db.models.deletion.CASCADE,
                        related_name="products",
                        to="farm_hub.farmtype",
                    ),
                ),
            ],
            options={
                "db_table": "products",
                "ordering": ["name"],
            },
        ),
        migrations.CreateModel(
            name="FarmSensor",
            fields=[
                ("id", models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name="ID")),
                ("uuid", models.UUIDField(db_index=True, default=uuid.uuid4, editable=False, unique=True)),
                ("name", models.CharField(max_length=255)),
                ("sensor_type", models.CharField(blank=True, default="", max_length=255)),
                ("is_active", models.BooleanField(default=True)),
                ("specifications", models.JSONField(blank=True, default=dict)),
                ("power_source", models.JSONField(blank=True, default=dict)),
                ("customization", models.JSONField(blank=True, default=dict)),
                ("created_at", models.DateTimeField(auto_now_add=True)),
                ("updated_at", models.DateTimeField(auto_now=True)),
                (
                    "farm",
                    models.ForeignKey(
                        on_delete=django.db.models.deletion.CASCADE,
                        related_name="sensors",
                        to="farm_hub.farmhub",
                    ),
                ),
            ],
            options={
                "db_table": "farm_sensors",
                "ordering": ["-created_at"],
            },
        ),
        migrations.AddField(
            model_name="farmhub",
            name="products",
            field=models.ManyToManyField(blank=True, related_name="farms", to="farm_hub.product"),
        ),
        migrations.AddConstraint(
            model_name="product",
            constraint=models.UniqueConstraint(fields=("farm_type", "name"), name="unique_product_per_farm_type"),
        ),
    ]