76 lines
3.2 KiB
Python
76 lines
3.2 KiB
Python
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import uuid
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import django.db.models.deletion
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from django.db import migrations, models
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def backfill_devices_from_sensor_payload(apps, schema_editor):
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SensorData = apps.get_model("sensor_data", "SensorData")
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Device = apps.get_model("sensor_data", "Device")
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for farm in SensorData.objects.all().iterator():
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sensor_payload = farm.sensor_payload if isinstance(farm.sensor_payload, dict) else {}
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location_id = getattr(farm, "center_location_id", None)
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if location_id is None:
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continue
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for sensor_name, payload in sensor_payload.items():
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if not isinstance(payload, dict):
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continue
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cluster_uuid = None
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raw_cluster_uuid = payload.get("cluster_uuid")
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if raw_cluster_uuid not in (None, ""):
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try:
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cluster_uuid = uuid.UUID(str(raw_cluster_uuid))
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except (TypeError, ValueError, AttributeError):
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cluster_uuid = None
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Device.objects.update_or_create(
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farm_id=farm.pk,
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sensor_name=sensor_name,
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defaults={
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"location_id": location_id,
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"payload": payload,
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"cluster_uuid": cluster_uuid,
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},
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)
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class Migration(migrations.Migration):
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dependencies = [
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("location_data", "0019_cluster_block_centers"),
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("sensor_data", "0012_plant_catalog_snapshot_and_assignment"),
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]
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operations = [
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migrations.CreateModel(
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name="Device",
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fields=[
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("id", models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name="ID")),
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("sensor_name", models.CharField(db_index=True, help_text='نام سنسور مثل "sensor-7-1"', max_length=64)),
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("payload", models.JSONField(blank=True, default=dict, help_text="payload همان سنسور")),
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("cluster_uuid", models.UUIDField(blank=True, db_index=True, help_text="uuid کلاستر داخل location برای این سنسور", null=True)),
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("created_at", models.DateTimeField(auto_now_add=True)),
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("updated_at", models.DateTimeField(auto_now=True)),
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("farm", models.ForeignKey(db_column="farm_uuid", on_delete=django.db.models.deletion.CASCADE, related_name="devices", to="sensor_data.sensordata")),
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("location", models.ForeignKey(db_column="location_id", help_text="location مرتبط با این device", on_delete=django.db.models.deletion.CASCADE, related_name="devices", to="location_data.soillocation")),
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],
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options={
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"verbose_name": "device",
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"verbose_name_plural": "devices",
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"db_table": "farm_data_device",
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"ordering": ["sensor_name", "id"],
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},
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),
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migrations.AddConstraint(
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model_name="device",
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constraint=models.UniqueConstraint(fields=("farm", "sensor_name"), name="farm_data_unique_device_per_farm_sensor"),
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),
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migrations.RunPython(
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backfill_devices_from_sensor_payload,
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migrations.RunPython.noop,
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),
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]
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