update chicken weight to have chicken_area data as well

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,