UPDATE

location_data/management/commands/seed_location_data.py

@@ -0,0 +1,107 @@
+"""
+Management command to seed a fixed demo farm center location and soil depths.
+Run: python manage.py seed_location_data
+"""
+from django.core.management.base import BaseCommand
+
+from location_data.models import SoilDepthData, SoilLocation
+
+
+DEMO_LATITUDE = "50.000000"
+DEMO_LONGITUDE = "50.000000"
+DEMO_BOUNDARY = {
+    "type": "Polygon",
+    "coordinates": [
+        [
+            [49.995, 49.995],
+            [50.005, 49.995],
+            [50.005, 50.005],
+            [49.995, 50.005],
+            [49.995, 49.995],
+        ]
+    ],
+}
+DEMO_SOIL_DEPTHS = {
+    SoilDepthData.DEPTH_0_5: {
+        "bdod": 1.22,
+        "cec": 18.4,
+        "cfvo": 3.0,
+        "clay": 24.0,
+        "nitrogen": 0.21,
+        "ocd": 26.0,
+        "ocs": 4.1,
+        "phh2o": 6.7,
+        "sand": 38.0,
+        "silt": 38.0,
+        "soc": 1.8,
+        "wv0010": 0.32,
+        "wv0033": 0.24,
+        "wv1500": 0.12,
+    },
+    SoilDepthData.DEPTH_5_15: {
+        "bdod": 1.28,
+        "cec": 17.2,
+        "cfvo": 4.0,
+        "clay": 26.0,
+        "nitrogen": 0.18,
+        "ocd": 23.0,
+        "ocs": 3.6,
+        "phh2o": 6.8,
+        "sand": 36.0,
+        "silt": 38.0,
+        "soc": 1.5,
+        "wv0010": 0.29,
+        "wv0033": 0.22,
+        "wv1500": 0.11,
+    },
+    SoilDepthData.DEPTH_15_30: {
+        "bdod": 1.34,
+        "cec": 15.9,
+        "cfvo": 5.0,
+        "clay": 28.0,
+        "nitrogen": 0.14,
+        "ocd": 19.0,
+        "ocs": 2.9,
+        "phh2o": 6.9,
+        "sand": 34.0,
+        "silt": 38.0,
+        "soc": 1.2,
+        "wv0010": 0.26,
+        "wv0033": 0.19,
+        "wv1500": 0.09,
+    },
+}
+
+
+class Command(BaseCommand):
+    help = "Seed a fixed center location at 50.00, 50.00 plus three soil depth rows."
+
+    def handle(self, *args, **options):
+        location, created = SoilLocation.objects.update_or_create(
+            latitude=DEMO_LATITUDE,
+            longitude=DEMO_LONGITUDE,
+            defaults={
+                "task_id": "",
+                "farm_boundary": DEMO_BOUNDARY,
+            },
+        )
+
+        status_text = "Created" if created else "Updated"
+        self.stdout.write(
+            self.style.SUCCESS(
+                f"{status_text} SoilLocation id={location.id} at ({location.latitude}, {location.longitude})"
+            )
+        )
+
+        for depth_label, values in DEMO_SOIL_DEPTHS.items():
+            _, depth_created = SoilDepthData.objects.update_or_create(
+                soil_location=location,
+                depth_label=depth_label,
+                defaults=values,
+            )
+            depth_status = "Created" if depth_created else "Updated"
+            self.stdout.write(
+                self.style.SUCCESS(f"  {depth_status} SoilDepthData {depth_label}")
+            )
+
+        self.stdout.write(self.style.SUCCESS("\nDone seeding location_data demo records."))

location_data/migrations/0006_remove_soillocation_ideal_sensor_profile.py

@@ -0,0 +1,15 @@
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("location_data", "0005_merge_20260327_0840"),
+    ]
+
+    operations = [
+        migrations.RemoveField(
+            model_name="soillocation",
+            name="ideal_sensor_profile",
+        ),
+    ]

location_data/models.py

@@ -3,7 +3,7 @@ from django.db import models
 
 class SoilLocation(models.Model):
     """
-    مختصات جغرافیایی برای داده‌های خاک.
+    مرکز زمین برای داده‌های خاک و مزرعه.
     هر مختصات سه سطر در SoilDepthData دارد (۰–۵، ۵–۱۵، ۱۵–۳۰ سانتی‌متر).
     """
 
@@ -11,27 +11,20 @@ class SoilLocation(models.Model):
         max_digits=9,
         decimal_places=6,
         db_index=True,
-        help_text="عرض جغرافیایی (lat)",
+        help_text="عرض جغرافیایی مرکز زمین (lat)",
     )
     longitude = models.DecimalField(
         max_digits=9,
         decimal_places=6,
         db_index=True,
-        help_text="طول جغرافیایی (lon)",
+        help_text="طول جغرافیایی مرکز زمین (lon)",
     )
     task_id = models.CharField(
         max_length=255,
         blank=True,
         help_text="شناسه تسک Celery در حال پردازش",
     )
-    ideal_sensor_profile = models.JSONField(
-        default=dict,
-        blank=True,
-        help_text=(
-            "پروفایل ایده‌آل سنسورها برای این مزرعه/لوکیشن. "
-            'نمونه: {"moisture": {"ideal": 0.65, "min": 0.50, "max": 0.80}}'
-        ),
-    )
+ 
     farm_boundary = models.JSONField(
         default=dict,
         blank=True,
@@ -51,10 +44,20 @@ class SoilLocation(models.Model):
             )
         ]
         ordering = ["-updated_at"]
+        verbose_name = "مرکز زمین"
+        verbose_name_plural = "مراکز زمین"
 
     def __str__(self):
         return f"SoilLocation({self.latitude}, {self.longitude})"
 
+    @property
+    def center_latitude(self):
+        return self.latitude
+
+    @property
+    def center_longitude(self):
+        return self.longitude
+
     @property
     def is_complete(self):
         """آیا هر سه عمق ذخیره شده‌اند؟"""