Files
Backend/farm_hub/serializers.py
T
2026-04-28 19:01:00 +03:30

285 lines
11 KiB
Python

from rest_framework import serializers
from access_control.models import SubscriptionPlan
from access_control.serializers import SubscriptionPlanSerializer
from access_control.catalog import GOLD_PLAN_CODE
from access_control.services import get_effective_subscription_plan
from .models import FarmHub, FarmSensor, FarmType, Product
from .services import normalize_farm_boundary_input
from sensor_catalog.models import SensorCatalog
class FarmTypeSerializer(serializers.ModelSerializer):
class Meta:
model = FarmType
fields = ["uuid", "name", "description", "metadata"]
class ProductSerializer(serializers.ModelSerializer):
class Meta:
model = Product
fields = [
"uuid",
"name",
"description",
"metadata",
"light",
"watering",
"soil",
"temperature",
"planting_season",
"harvest_time",
"spacing",
"fertilizer",
"health_profile",
"irrigation_profile",
"growth_profile",
]
class FarmSensorSerializer(serializers.ModelSerializer):
last_updated = serializers.DateTimeField(source="updated_at", read_only=True)
sensor_catalog_uuid = serializers.UUIDField(source="sensor_catalog.uuid", read_only=True)
class Meta:
model = FarmSensor
fields = [
"uuid",
"sensor_catalog_uuid",
"physical_device_uuid",
"name",
"sensor_type",
"is_active",
"specifications",
"power_source",
"last_updated",
]
read_only_fields = ["uuid", "last_updated"]
class FarmHubSerializer(serializers.ModelSerializer):
last_updated = serializers.DateTimeField(source="updated_at", read_only=True)
farm_type = FarmTypeSerializer(read_only=True)
subscription_plan = serializers.SerializerMethodField()
products = ProductSerializer(many=True, read_only=True)
sensors = FarmSensorSerializer(many=True, read_only=True)
area_uuid = serializers.UUIDField(source="current_crop_area.uuid", read_only=True)
class Meta:
model = FarmHub
fields = [
"farm_uuid",
"area_uuid",
"name",
"is_active",
"irrigation_method_id",
"irrigation_method_name",
"farm_type",
"subscription_plan",
"products",
"sensors",
"last_updated",
]
read_only_fields = ["farm_uuid", "last_updated"]
def get_subscription_plan(self, obj):
subscription_plan = get_effective_subscription_plan(obj)
if subscription_plan is None:
return None
return SubscriptionPlanSerializer(subscription_plan, context=self.context).data
class FarmSensorWriteSerializer(serializers.ModelSerializer):
sensor_catalog_uuid = serializers.UUIDField(write_only=True, required=False)
class Meta:
model = FarmSensor
fields = [
"sensor_catalog_uuid",
"physical_device_uuid",
"name",
"sensor_type",
"is_active",
"specifications",
"power_source",
]
def validate(self, attrs):
sensor_catalog_uuid = attrs.pop("sensor_catalog_uuid", None)
if sensor_catalog_uuid is not None:
try:
sensor_catalog = SensorCatalog.objects.get(uuid=sensor_catalog_uuid)
except SensorCatalog.DoesNotExist as exc:
raise serializers.ValidationError({"sensor_catalog_uuid": ["Sensor catalog not found."]}) from exc
attrs["sensor_catalog"] = sensor_catalog
attrs.setdefault("name", sensor_catalog.name)
return attrs
class FarmHubCreateSerializer(serializers.ModelSerializer):
area_geojson = serializers.JSONField(write_only=True, required=False)
farm_boundary = serializers.JSONField(write_only=True, required=False)
farm_type_uuid = serializers.UUIDField(write_only=True)
subscription_plan_uuid = serializers.UUIDField(write_only=True, required=False, allow_null=True)
product_uuids = serializers.ListField(
child=serializers.UUIDField(),
write_only=True,
allow_empty=False,
)
sensors = FarmSensorWriteSerializer(many=True, required=False)
sensor_key = serializers.CharField(write_only=True, required=False, allow_blank=True, default="sensor-7-1")
sensor_payload = serializers.JSONField(write_only=True, required=False)
irrigation_method_id = serializers.IntegerField(required=False, allow_null=True)
irrigation_method_name = serializers.CharField(required=False, allow_blank=True)
class Meta:
model = FarmHub
fields = [
"name",
"is_active",
"farm_type_uuid",
"subscription_plan_uuid",
"product_uuids",
"sensors",
"area_geojson",
"farm_boundary",
"sensor_key",
"sensor_payload",
"irrigation_method_id",
"irrigation_method_name",
]
def to_internal_value(self, data):
if hasattr(data, "copy"):
data = data.copy()
data.pop("farm_uuid", None)
return super().to_internal_value(data)
def validate_area_geojson(self, value):
try:
return normalize_farm_boundary_input(value)
except ValueError as exc:
raise serializers.ValidationError(str(exc)) from exc
def validate_farm_boundary(self, value):
try:
return normalize_farm_boundary_input(value)
except ValueError as exc:
raise serializers.ValidationError(str(exc)) from exc
def validate_sensor_payload(self, value):
if not isinstance(value, dict):
raise serializers.ValidationError("`sensor_payload` must be an object.")
return value
def validate(self, attrs):
farm_boundary = attrs.pop("farm_boundary", serializers.empty)
if farm_boundary is not serializers.empty:
attrs["area_geojson"] = farm_boundary
farm_type_uuid = attrs.get("farm_type_uuid")
subscription_plan_uuid = attrs.get("subscription_plan_uuid", serializers.empty)
product_uuids = attrs.get("product_uuids")
if farm_type_uuid is None:
if self.instance is None:
raise serializers.ValidationError({"farm_type_uuid": ["This field is required."]})
farm_type = self.instance.farm_type
else:
try:
farm_type = FarmType.objects.get(uuid=farm_type_uuid)
except FarmType.DoesNotExist as exc:
raise serializers.ValidationError({"farm_type_uuid": ["Farm type not found."]}) from exc
if product_uuids is None:
products = list(self.instance.products.all()) if self.instance is not None else []
else:
products = list(Product.objects.filter(uuid__in=product_uuids))
if len(products) != len(product_uuids):
raise serializers.ValidationError({"product_uuids": ["One or more products were not found."]})
invalid_products = [product.name for product in products if product.farm_type_id != farm_type.id]
if invalid_products:
raise serializers.ValidationError(
{"product_uuids": [f"Products must belong to farm type `{farm_type.name}`."]}
)
if subscription_plan_uuid is serializers.empty:
if self.instance is not None:
subscription_plan = self.instance.subscription_plan
else:
subscription_plan = SubscriptionPlan.objects.filter(code=GOLD_PLAN_CODE, is_active=True).first()
elif subscription_plan_uuid is None:
subscription_plan = None
else:
try:
subscription_plan = SubscriptionPlan.objects.get(uuid=subscription_plan_uuid, is_active=True)
except SubscriptionPlan.DoesNotExist as exc:
raise serializers.ValidationError({"subscription_plan_uuid": ["Subscription plan not found."]}) from exc
attrs["farm_type"] = farm_type
attrs["subscription_plan"] = subscription_plan
attrs["products"] = products
irrigation_method_id = attrs.get("irrigation_method_id", serializers.empty)
irrigation_method_name = attrs.get("irrigation_method_name", serializers.empty)
if irrigation_method_id is None:
attrs["irrigation_method_name"] = ""
elif irrigation_method_name is serializers.empty and self.instance is not None:
attrs["irrigation_method_name"] = self.instance.irrigation_method_name
return attrs
def create(self, validated_data):
validated_data.pop("area_geojson", None)
validated_data.pop("sensor_key", None)
validated_data.pop("sensor_payload", None)
sensors_data = validated_data.pop("sensors", [])
products = validated_data.pop("products", [])
validated_data["farm_type"] = validated_data.pop("farm_type")
validated_data["subscription_plan"] = validated_data.pop("subscription_plan", None)
validated_data.pop("farm_type_uuid", None)
validated_data.pop("subscription_plan_uuid", None)
validated_data.pop("product_uuids", None)
farm = super().create(validated_data)
if products:
farm.products.set(products)
if sensors_data:
FarmSensor.objects.bulk_create([FarmSensor(farm=farm, **sensor_data) for sensor_data in sensors_data])
return farm
def update(self, instance, validated_data):
validated_data.pop("area_geojson", None)
validated_data.pop("sensor_key", None)
validated_data.pop("sensor_payload", None)
sensors_data = validated_data.pop("sensors", None)
products = validated_data.pop("products", None)
farm_type = validated_data.pop("farm_type", None)
subscription_plan = validated_data.pop("subscription_plan", serializers.empty)
validated_data.pop("farm_type_uuid", None)
validated_data.pop("subscription_plan_uuid", None)
validated_data.pop("product_uuids", None)
for attr, value in validated_data.items():
setattr(instance, attr, value)
if farm_type is not None:
instance.farm_type = farm_type
if subscription_plan is not serializers.empty:
instance.subscription_plan = subscription_plan
instance.save()
if products is not None:
instance.products.set(products)
if sensors_data is not None:
instance.sensors.all().delete()
if sensors_data:
FarmSensor.objects.bulk_create([FarmSensor(farm=instance, **sensor_data) for sensor_data in sensors_data])
return instance
class FarmToggleSerializer(serializers.Serializer):
farm_uuid = serializers.UUIDField()