gold eggs backend

core/apps/eggs/utils/history.py

@@ -0,0 +1,25 @@
+from django.db.models.signals import post_save
+from django.dispatch import receiver
+
+from core.apps.eggs import models
+
+
+@receiver(post_save, sender=models.CourierProduct)
+def create_courier_history(sender, instance, created, **kwargs):
+    if created:
+        models.CourierHistory.objects.create(
+            courier_id=instance.courier_id,
+            group_id=instance.group_id,
+            get_eggs=instance.count,
+            courier_product_id=instance,
+            return_eggs=instance.return_eggs,
+        )
+        #
+
+    else:
+        histories = models.CourierHistory.objects.filter(
+            courier_product_id=instance, group_id=instance.group_id
+        )
+        for history in histories:
+            history.return_eggs = instance.return_eggs
+            history.save()