UPDATE

rag/services/irrigation.py

@@ -83,12 +83,20 @@ def get_irrigation_recommendation(
 
     user_query = query or "توصیه آبیاری برای مزرعه من چیست؟"
 
-    sensor = SensorData.objects.select_related("center_location").prefetch_related("plants").filter(farm_uuid=sensor_uuid).first()
+    sensor = (
+        SensorData.objects.select_related("center_location", "irrigation_method")
+        .prefetch_related("plants")
+        .filter(farm_uuid=sensor_uuid)
+        .first()
+    )
     plant = None
+    resolved_plant_name = plant_name
     if sensor is not None and plant_name:
         plant = sensor.plants.filter(name=plant_name).first()
     elif sensor is not None:
         plant = sensor.plants.first()
+        if plant is not None:
+            resolved_plant_name = plant.name
     crop_profile = resolve_crop_profile(plant, growth_stage=growth_stage)
     active_kc = resolve_kc(crop_profile, growth_stage=growth_stage)
     forecasts = []
@@ -99,11 +107,18 @@ def get_irrigation_recommendation(
             .order_by("forecast_date")[:7]
         )
         efficiency_percent = None
+        resolved_irrigation_method_name = irrigation_method_name
+        method = None
         if irrigation_method_name:
             from irrigation.models import IrrigationMethod
 
             method = IrrigationMethod.objects.filter(name=irrigation_method_name).first()
-            efficiency_percent = getattr(method, "water_efficiency_percent", None) if method else None
+        elif sensor is not None:
+            method = sensor.irrigation_method
+            if method is not None:
+                resolved_irrigation_method_name = method.name
+
+        efficiency_percent = getattr(method, "water_efficiency_percent", None) if method else None
         daily_water_needs = calculate_forecast_water_needs(
             forecasts=forecasts,
             latitude_deg=float(sensor.center_location.latitude),
@@ -117,12 +132,15 @@ def get_irrigation_recommendation(
     )
 
     extra_parts: list[str] = []
-    if plant_name and growth_stage:
-        plant_text = build_plant_text(plant_name, growth_stage)
+    resolved_irrigation_method_name = irrigation_method_name or (
+        sensor.irrigation_method.name if sensor is not None and sensor.irrigation_method else None
+    )
+    if resolved_plant_name and growth_stage:
+        plant_text = build_plant_text(resolved_plant_name, growth_stage)
         if plant_text:
             extra_parts.append("[اطلاعات گیاه]\n" + plant_text)
-    if irrigation_method_name:
-        method_text = build_irrigation_method_text(irrigation_method_name)
+    if resolved_irrigation_method_name:
+        method_text = build_irrigation_method_text(resolved_irrigation_method_name)
         if method_text:
             extra_parts.append("[روش آبیاری انتخابی]\n" + method_text)
     if daily_water_needs: