update chicken weight to have chicken_area data as well

backend/apps/jobs/management/commands/seed_sukawarna_kandang4.py

@@ -283,6 +283,7 @@ class Command(BaseCommand):
             weight = AVG_WEIGHT[i]
             prev_weight = AVG_WEIGHT[i - 1] if i > 0 else DOC_IN_WEIGHT
             adg = _round(weight - prev_weight, 2) if weight else 0.0
+            area_cm2 = _round(4.8 * (weight ** 0.66), 1) if weight else 0.0
             cw, _ = ChickenWeight.objects.update_or_create(
                 cycle=cycle,
                 date=day,
@@ -293,6 +294,7 @@ class Command(BaseCommand):
                     "chicken_count": SAMPLE_COUNT[i],
                     "uniformity": UNIFORMITY[i],
                     "average_daily_gain": adg,
+                    "chicken_area": area_cm2,
                 },
             )
             cw_by_date[day] = cw

backend/apps/jobs/management/commands/seed_sukawarna_kandang5.py

@@ -147,16 +147,18 @@ class Command(BaseCommand):
 
         cw_by_date = {}
         for row in sheets["chicken_weight"]:
+            avg_wt = float(as_number(row.get("average_weight")))
             obj, _ = ChickenWeight.objects.update_or_create(
                 cycle=cycle,
                 date=row["date"],
                 defaults={
                     "age": int(as_number(row.get("age"))),
                     "doc_weight": int(as_number(row.get("doc_weight"))),
-                    "average_weight": float(as_number(row.get("average_weight"))),
+                    "average_weight": avg_wt,
                     "chicken_count": int(as_number(row.get("chicken_count"))),
                     "uniformity": float(as_number(row.get("uniformity"))),
                     "average_daily_gain": float(as_number(row.get("average_daily_gain"))),
+                    "chicken_area": round(4.8 * (avg_wt ** 0.66), 1) if avg_wt > 0 else 0.0,
                 },
             )
             cw_by_date[row["date"]] = obj

backend/apps/operations/migrations/0021_chickenweight_chicken_area_and_more.py

@@ -0,0 +1,48 @@
+# Generated by Django 5.2.17 on 2026-10-07 08:34
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('operations', '0020_drop_orphan_structured_data'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='chickenweight',
+            name='chicken_area',
+            field=models.FloatField(default=0.0),
+        ),
+        migrations.AlterField(
+            model_name='chickencounting',
+            name='cc_id',
+            field=models.BigAutoField(primary_key=True, serialize=False),
+        ),
+        migrations.AlterField(
+            model_name='chickenweight',
+            name='cw_id',
+            field=models.BigAutoField(primary_key=True, serialize=False),
+        ),
+        migrations.AlterField(
+            model_name='feedsacks',
+            name='fs_id',
+            field=models.BigAutoField(primary_key=True, serialize=False),
+        ),
+        migrations.AlterField(
+            model_name='iotpanel',
+            name='panel_id',
+            field=models.BigAutoField(primary_key=True, serialize=False),
+        ),
+        migrations.AlterField(
+            model_name='kpi',
+            name='kpi_id',
+            field=models.BigAutoField(primary_key=True, serialize=False),
+        ),
+        migrations.AlterField(
+            model_name='manualinput',
+            name='manual_id',
+            field=models.BigAutoField(primary_key=True, serialize=False),
+        ),
+    ]

backend/apps/operations/models.py

@@ -105,6 +105,7 @@ class ChickenWeight(models.Model):
     chicken_count = models.IntegerField()
     uniformity = models.FloatField()
     average_daily_gain = models.FloatField()
+    chicken_area = models.FloatField(default=0.0)
     cycle = models.ForeignKey(Cycle, on_delete=models.CASCADE, related_name="chicken_weights")
     created_at = models.DateTimeField(auto_now_add=True)
     updated_at = models.DateTimeField(auto_now=True)

backend/apps/operations/services/chicken_counting_edge.py

@@ -116,10 +116,24 @@ def aggregate_weight_by_date(
         weights = [float(f.get("predicted_weight_g") or 0) for f in floors]
         unifs = [float(f.get("uniformity") or 0) for f in floors]
         samples = [int(f.get("n_valid_samples") or 0) for f in floors]
+        areas = [
+            float(
+                f.get("area_cm2_median")
+                or f.get("area_cm2")
+                or f.get("predicted_area_cm2")
+                or f.get("bbox_area_cm2")
+                or f.get("area")
+                or 0
+            )
+            for f in floors
+        ]
+        valid_areas = [a for a in areas if a > 0]
+        avg_area = sum(valid_areas) / len(valid_areas) if valid_areas else 0.0
         by_date[day] = {
             "average_weight": sum(weights) / len(weights),
             "uniformity": sum(unifs) / len(unifs),
             "chicken_count": max(samples) if samples else 0,
+            "chicken_area": round(avg_area, 2),
         }
     return by_date
 
@@ -309,6 +323,7 @@ def sync_chicken_weight_for_cycle(
             uniformity = 0.0
             chicken_count = int(cycle.doc_in_count)
             adg = 0.0
+            chicken_area = 0.0
         else:
             metrics = weight_by_date.get(day)
             if metrics is None:
@@ -317,6 +332,7 @@ def sync_chicken_weight_for_cycle(
             uniformity = float(metrics["uniformity"])
             chicken_count = int(metrics["chicken_count"])
             adg = round(average_weight - prev_weight, 2)
+            chicken_area = float(metrics.get("chicken_area", 0.0))
 
         defaults = {
             "age": age,
@@ -325,6 +341,7 @@ def sync_chicken_weight_for_cycle(
             "chicken_count": chicken_count,
             "uniformity": uniformity,
             "average_daily_gain": adg,
+            "chicken_area": chicken_area,
         }
         ChickenWeight.objects.update_or_create(
             cycle=cycle,

backend/database/ERD_Dashboard_Chicken_Counting.md

@@ -175,12 +175,7 @@ erDiagram
         int chicken_count "NOT NULL (n_weight_samples)"
         float uniformity "NOT NULL (Flock weight uniformity %)"
         float average_daily_gain "NOT NULL (ADG in grams/day)"
-        float area_cm2_median "Median body area in cm^2"
-        float minor_axis_cm_median "Median minor axis / width in cm"
-        float major_axis_cm_median "Median major axis / length in cm"
-        float gompertz_baseline_g "Theoretical Gompertz curve baseline"
-        float vision_gain_g "Allometric vision gain residual"
-        float rejection_rate "MAD outlier filter rejection percentage"
+        float chicken_area "NOT NULL DEFAULT 0.0 (Median chicken area in cm^2)"
         timestamp created_at "NOT NULL"
         timestamp updated_at "NOT NULL"
     }
@@ -308,8 +303,7 @@ Our edge pipeline aggregates floor camera runs and pushes clean daily rollups di
    - `chicken_count` $\leftarrow \sum \text{n\_weight\_samples}$ (valid non-outlier tracks).
    - `uniformity` $\leftarrow \text{flock size uniformity percentage}$.
    - `average_daily_gain` $\leftarrow \text{daily weight gain in grams/day}$.
-   - `area_cm2_median`, `minor_axis_cm_median`, `major_axis_cm_median` $\leftarrow \text{calibrated physical dimensions}$.
-   - `gompertz_baseline_g`, `vision_gain_g` $\leftarrow \text{audited growth model residual breakdown}$.
+   - `chicken_area` $\leftarrow \text{calibrated median chicken body area in cm²}$.
 
 ---
 

backend/database/ERD_dashboard.json

@@ -1290,6 +1290,22 @@
           "parent": "PF_pHT-a65sNfpEKlwq7-159",
           "label": "average_daily_gain float NOT NULL"
         },
+        {
+          "id": "PF_pHT-a65sNfpEKlwq7-cw-area",
+          "type": "node",
+          "parent": "PF_pHT-a65sNfpEKlwq7-66"
+        },
+        {
+          "id": "PF_pHT-a65sNfpEKlwq7-cw-area-col1",
+          "type": "node",
+          "parent": "PF_pHT-a65sNfpEKlwq7-cw-area"
+        },
+        {
+          "id": "PF_pHT-a65sNfpEKlwq7-cw-area-col2",
+          "type": "node",
+          "parent": "PF_pHT-a65sNfpEKlwq7-cw-area",
+          "label": "chicken_area float NOT NULL"
+        },
         {
           "id": "PF_pHT-a65sNfpEKlwq7-321",
           "type": "node",
@@ -2537,4 +2553,4 @@
       ]
     }
   ]
-}
+}

backend/database/erd_schema.sql

@@ -147,8 +147,9 @@ CREATE INDEX IF NOT EXISTS idx_cycles_close_requested_by_id ON cycles (close_req
 -- -----------------------------------------------------------------------------
 CREATE TABLE IF NOT EXISTS flock (
     flock_id    SERIAL PRIMARY KEY,
-    flock_name  VARCHAR(30) NOT NULL,
-    kandang_id  INTEGER     NOT NULL REFERENCES kandang (kandang_id) ON DELETE CASCADE,
+    flock_name  VARCHAR(30)  NOT NULL,
+    iot_api_url VARCHAR(500) NOT NULL DEFAULT '',
+    kandang_id  INTEGER      NOT NULL REFERENCES kandang (kandang_id) ON DELETE CASCADE,
     created_at  TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT CURRENT_TIMESTAMP,
     updated_at  TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT CURRENT_TIMESTAMP
 );
@@ -259,8 +260,9 @@ CREATE TABLE IF NOT EXISTS chicken_weight (
     doc_weight           INTEGER          NOT NULL,
     average_weight       FLOAT            NOT NULL,
     chicken_count        INTEGER          NOT NULL,
-    uniformity           FLOAT NOT NULL,
-    average_daily_gain   FLOAT NOT NULL,
+    uniformity           FLOAT            NOT NULL,
+    average_daily_gain   FLOAT            NOT NULL,
+    chicken_area         FLOAT            NOT NULL DEFAULT 0.0,
     created_at           TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT CURRENT_TIMESTAMP,
     updated_at           TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT CURRENT_TIMESTAMP,
     cycle_id             INTEGER          NOT NULL REFERENCES cycles (cycle_id) ON DELETE CASCADE