optimze diffrend currencys

backend/product/models.py

@@ -97,6 +97,22 @@ class ProductModel(models.Model):
     def __str__(self):
         return self.name
 
+    def get_toman_price(self):
+        dollor_object, _ = DollorModel.objects.get_or_create(unique_filed='unique')
+        dollor_price = dollor_object.price
+        dollar_to_dirham = 0.27
+        if dollor_price is None:
+            raise ValidationError({"dollor_price": "The 'dollor_price' must be provided in the context for dollar pricing."})
+        if self.currency == 'toman':
+            toman_price =  self.price
+        elif self.currency == 'dollor':
+            toman_price =  self.price * dollor_price
+        elif self.currency == 'derham':
+            toman_price =  self.price * dollor_price * dollar_to_dirham
+        return toman_price
+
+    def get_toman_price_after_discount(self):
+        return self.get_toman_price() * ((100 - self.discount) / 100)
 
     def save(self, *args, **kwargs):
         if not self.slug:

backend/product/serializers.py

@@ -10,8 +10,7 @@ class ProductChatSerializer(serializers.ModelSerializer):
         model = ProductModel
         fields = ['name', 'description', 'price', 'in_stock', 'discount', ]
     def get_price(self, obj):
-        dollor_object, _ = DollorModel.objects.get_or_create(unique_filed='unique')
-        dollor_price = dollor_object.price
+        dollor_price = self.content.get('dollor_price')
         dollar_to_dirham = 0.27
         if dollor_price is None:
             raise ValidationError({"dollor_price": "The 'dollor_price' must be provided in the context for dollar pricing."})

backend/product/views.py

@@ -54,7 +54,9 @@ class ProductView(APIView):
     authentication_classes = []
     def get(self, request, pk):
         product = get_object_or_404(ProductModel, id=pk)
-        product_ser = self.serializer_class(instance=product, many=False)
+        dollor_object, _ = DollorModel.objects.get_or_create(unique_filed='unique')
+        dollor_price = dollor_object.price
+        product_ser = self.serializer_class(instance=product, many=False, context={'dollor_price': dollor_price})
         return Response(product_ser.data, status=status.HTTP_200_OK)
 
 
@@ -182,7 +184,9 @@ class AllProductsView(APIView):
             # Pagination
             paginator = self.pagination_class()
             paginated_products = paginator.paginate_queryset(products, request)
-            serializer = self.serializer_class(paginated_products, many=True)
+            dollor_object, _ = DollorModel.objects.get_or_create(unique_filed='unique')
+            dollor_price = dollor_object.price
+            serializer = self.serializer_class(paginated_products, many=True, context={'dollor_price': dollor_price})
             return paginator.get_paginated_response(serializer.data)
 
         except MainCategoryModel.DoesNotExist: