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apps/shop/services/cart.py

@@ -0,0 +1,36 @@
+from rest_framework import exceptions
+from decimal import Decimal
+from django.db import transaction
+from apps.shop.models import Cart as CartModel
+
+
+def add_to_cart(product_id: int, quantity: int, workspace, cuser_role) -> CartModel:
+    try:
+
+        try:
+            cart_obj = CartModel.objects.get(product_id=product_id, sys_ws=workspace, cuser_role=cuser_role)
+        except Exception as exp:
+            cart_obj = CartModel()
+            
+        cart_obj.product_id = product_id
+        cart_obj.quantity = quantity
+        cart_obj.sys_ws = workspace
+        cart_obj.cuser_role = cuser_role
+
+        cart_obj.full_clean()
+        cart_obj.save()
+
+        return cart_obj
+
+    except Exception as exp:
+        message = f'Error Add to Cart: {exp}'
+        exceptions.ValidationError({'error': message})
+
+
+def delete_cart_iteam(cart_id: int, cuser_role_uuid, workspace_uuid: str) -> CartModel:
+    try:
+        cart_obj = CartModel.objects.get(id=cart_id, cuser_role__uuid=cuser_role_uuid, sys_ws__uuid=workspace_uuid).delete()
+        return cart_obj
+    except Exception as exp:
+        message = f'Error Deleting Cart iteam: {exp}'
+        raise exceptions.ValidationError({'error': message})