UPDATE

crop_zoning/models.py

@@ -0,0 +1,51 @@
+import uuid
+
+from django.db import models
+
+
+class CropArea(models.Model):
+    uuid = models.UUIDField(default=uuid.uuid4, unique=True, editable=False, db_index=True)
+    geometry = models.JSONField(default=dict)
+    points = models.JSONField(default=list)
+    center = models.JSONField(default=dict)
+    area_sqm = models.FloatField()
+    area_hectares = models.FloatField()
+    chunk_area_sqm = models.FloatField()
+    zone_count = models.PositiveIntegerField(default=0)
+    created_at = models.DateTimeField(auto_now_add=True)
+    updated_at = models.DateTimeField(auto_now=True)
+
+    class Meta:
+        db_table = "crop_areas"
+        ordering = ["-created_at", "-id"]
+
+    def __str__(self):
+        return f"Area {self.uuid}"
+
+
+class CropZone(models.Model):
+    uuid = models.UUIDField(default=uuid.uuid4, unique=True, editable=False, db_index=True)
+    crop_area = models.ForeignKey(
+        CropArea,
+        on_delete=models.CASCADE,
+        related_name="zones",
+    )
+    zone_id = models.CharField(max_length=64)
+    geometry = models.JSONField(default=dict)
+    points = models.JSONField(default=list)
+    center = models.JSONField(default=dict)
+    area_sqm = models.FloatField()
+    area_hectares = models.FloatField()
+    sequence = models.PositiveIntegerField()
+    created_at = models.DateTimeField(auto_now_add=True)
+    updated_at = models.DateTimeField(auto_now=True)
+
+    class Meta:
+        db_table = "crop_zones"
+        ordering = ["sequence", "id"]
+        constraints = [
+            models.UniqueConstraint(fields=["crop_area", "zone_id"], name="unique_crop_area_zone_id"),
+        ]
+
+    def __str__(self):
+        return self.zone_id